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Elsevier

Libros en Química

  • Chemistry and Action of Herbicide Antidotes

    • 1 Edición
    • Ferenc Pallos
    • Inglés
    Chemistry and Action of Herbicide Antidotes focuses on the development of herbicide safeners that promote high crop yields. This book explores the chemical and biochemical basis for the further development of herbicide antidotes. Organized into six parts encompassing 11 chapters, this book begins with an overview of the development of a cheap, fast, and accurate detection method for herbicide antidotes. This text then discusses the screening procedures in antidote research, which include the crop, herbicide, and operation mechanics. Other chapters consider the desirable characteristics of EPTC herbicide, including low toxicity to wildlife and appropriateness for use in a crop rotation sequence. This text discusses as well the s-triazine herbicides that are widely used for pre-emergence and post-emergence selective weed control in agriculture. The final chapter deals with the various approaches to discovery and optimization of herbicide antidotes. This book is a valuable resource for weed scientists and herbicide specialists.

  • The Chemistry of Nonaqueous Solvents VA

    Principles and Applications
    • 1 Edición
    • J.J. Lagowski
    • Inglés
    The Chemistry of Nonaqueous Solvents, Volume V-A: Principles and Basic Solvents provides the theoretical aspects of nonaqueous solution chemistry independent of solvent and information on individual solvent systems. This volume contains chapters on solvation and complex formation in protic and aprotic solvents; solvent basicity; ion-selective electrodes in nonaqueous solvents; nonaqueous solvents in organic electroanalytical chemistry; and anhydrous hydrazine and water-hydrazine mixtures. Chemists, researchers, and students of chemistry and chemical engineering will find the book a good reference material.

  • The Porphyrins V1

    Structure and Synthesis, Part A
    • 1 Edición
    • David Dolphin
    • Inglés
    The Porphyrins, Volume I: Structure and Synthesis, Part Ais the first in a series of seven volumes and covers topics like nomenclature, purification, and structural determination of porphyrins, metalloporphyrins, and other related compounds. This volume serves to be a critical review of the topics covered and presents a complete and comprehensible discussion on the chemistry and biochemistry of porphyrins. The chapters in the text tackle the history and geochemistry of porphyrins and related systems. Also covered and discussed in the chapters is the synthesis of porphyrins from mono-, di-, and tetrapyrrolic intermediates. The isolation and modification of porphyrins from natural sources are also discussed. Other related compounds are also included, such as metallo-, aza-, and N-methylporphyrins, and their synthesis and properties. This book is a good introduction and reference for students studying in the fields of chemistry and biochemistry.

  • Halogen Chemistry

    • 1 Edición
    • Viktor Gutmann
    • Inglés
    Halogen Chemistry, Volume 3 focuses on advancement in the study of halogens. Composed of contributions of authors, the book focuses on discussions on halides that contain multicentred metal-metal bonds. The discussions are initialized with an introduction; identification of factors that influence metal-metal bond formation; and compounds that contain multi-centred metal-metal bonds. The text also looks at the nature of metal-halogen bonds and the metal-halogen vibrational frequencies. Numerical representations and tabulations are presented as well. The book also looks at the halides of niobium and tantalum. Concerns include fluorine, chlorine, bromine, and iodine compounds. The compilation further considers pentahalides of transition metals and halide chemistry of chromium, molybdenum, and tungsten. The book closes with discussions on halogen chemistry of actinides and halogeno metal carbonyls and related compounds. Covered areas include trivalent, tetravalent, pentavalent, and hexavalent actinides, and structures and reactions of halogeno metal carbonyls. The compilation is a valuable source of information for readers interested in the study of halogens.

  • Student Guide For Living Chemistry

    • 1 Edición
    • Barbara Ucko
    • Inglés
    Student Guide for Living Chemistry is a 23-chapter textbook guide that allows students to study and review on their own and test their understanding to help them prepare for examinations. Every chapter begins with a list of objectives, stating exactly the skills to develop in a particular unit. Each objective corresponds to a section in the textbook Living Chemistry. Three kinds of questions are provided for each objective to check the student’s understanding, namely, short answer (Study Questions), multiple-choice, and fill-in. The answers for all questions are provided at the end of the chapter. The opening chapters cover the SI units, composition of matter, chemical bonding, compounds, chemical change, gases, respiration, and water. The subsequent chapters deal with solutions, acids, bases, salts, nuclear and organic chemistry, oxygen derivatives and hydrocarbons, polymers, and other organic derivatives. This textbook also explores the chemistry of carbohydrates, lipids, proteins, enzymes, and energy and carbohydrate metabolism. The remaining chapters discuss the chemistry of vitamins, hormones, body fluid, drugs, and poisons. Undergraduate chemistry students will find this book invaluable.

  • The Proteins Pt 1

    • 3 Edición
    • Hans Neurath
    • Inglés
    The Proteins, Volume I, Third Edition presents the procedures for the isolation and characterization of proteins and methods for the establishment of homogeneity. This volume contains chapters that discuss molecular sieve techniques for protein analysis; the theory and practice of biospecific affinity chromatography; gel electrophoresis of proteins in sodium dodecyl sulfate; sedimentation analysis of proteins; the subunit structure of proteins; and the analysis of protein subunit structure by electron microscopy. Protein chemists, medical and biological researchers, and students who require more knowledge of protein chemistry will find the book of great value.

  • Asymmetric Synthesis V1

    • 1 Edición
    • James Morrison
    • Inglés
    Asymmetric Synthesis, Volume 1: Analytical Methods covers the major analytical methods used to determine enantiomeric ratios. This volume contains chapters that discuss the methods used to obtain chiral compounds and shows how to evaluate the chiral efficiency of an asymmetric synthesis. Analytical methods such as polarimetry, competitive reaction methods, isotope dilution, gas and liquid chromatography, and nuclear magnetic resonance methods are also discussed. Chemists and researchers in the field of pharmaceutical will find the book very useful.

  • Carbon-13 NMR Spectroscopy

    Organic Chemistry, A Series of Monographs, Volume 24
    • 1 Edición
    • J Stothers
    • Inglés
    Carbon-13 NMR Spectroscopy focuses on the potential of 13C techniques and the practical difficulties associated with the detection of 13C NMR absorption. This monograph includes a descriptive presentation of 13C shielding results that has been adopted with emphasis on the structural and stereochemical aspects. Organized into four parts encompassing 11 chapters, this book starts with an overview of the characteristics of the NMR signals derived from compounds containing 13C nuclei in natural abundance that are inherently much weaker than those exhibited by protons. This monograph then compares the primary characteristics of 13C NMR with the more familiar proton methods. Other chapters consider the 13C spectra of pyridine, pyridazine, pyrimidine, pyrazine, s-triazine, and s-tetrazine. The final chapter deals with the effects of solute–solvent interactions on the shieldings of other nuclei. This monograph is intended for organic chemists, graduate students, and researchers in various branches of chemistry with an interest in 13C NMR methods as another approach to chemical problems.

  • Analytical Gas Chromatography

    • 1 Edición
    • Walter Jennings
    • Inglés
    Analytical Gas Chromatography is a free-standing introduction to and guide through the rapidly progressing field of analytical gas chromatography. The book is divided into 10 chapters that cover various aspects of analytical gas chromatography, from most advantageous column type to troubleshooting. The opening chapters of the book discuss the advantages of the open tubular column over the packed column. This topic is followed by significant chapters on various variables in the gas chromatographic process, including sample injection, stationary phase, carrier gas, and installation. The effect of changes in these variables on the solution elution order is also considered. A chapter also examines the influence of instrumental design features, such as excessive or unswept volumes in the flow path; suitability of the detection mode; and speed and fidelity of the data-handling equipment. The book also presents selected methods that have been employed to achieve better results for a given gas chromatographic problem. The application areas of gas chromatographic process, including food, flavor, fragrance, petroleum- and chemical-related, environment, biology, and medicine, are also presented. The concluding chapter addresses the basic troubleshooting knowledge and considers other chromatographic problems and methods for their rectification.

  • Fundamentals of Electrochemical Science

    • 1 Edición
    • Keith Oldham + 1 más
    • Inglés
    "Fundamentals of Electrochemical Science is a valuable contribution and I support the publication....I am looking forward to seeing this book on the shelves, and once published, I will not hesitate to recommend itto my students." --ANDRZEJ WIECKOWSKI, University of Illinois at Urbana-Champaign

  • Handbook of Infrared Standards

    With Spectral Maps and Transition Assignments Between 3 and 2600 x gmm
    • 1 Edición
    • Guy Guelachvili + 1 más
    • Inglés
    The development of infrared standards is an ongoing process in laboratories throughout the world. This handbook provides lists of standards based on spectra of easily available molecular species, from the upper end of the microwave region to the near infrared.

  • Oxidation in Organic Chemistry 5-C

    • 1 Edición
    • Walter Trahanovsky
    • Inglés
    Organic Chemistry, A Series of Monographs, Volume 5-C: Oxidation in Organic Chemistry covers the preparative use and the mechanistic aspects of the various oxidation reactions. This book contains five chapters that particularly consider oxidations that involve organoselenium intermediates. Chapter I describes the developments of selenium in organic chemistry, particularly the organoselenium reagents for performing selective oxidative transformations under unusually mild conditions. Chapter II deals with the problems encountered in oxygenation reactions carried out by several microorganisms, with an emphasis on a variety of fermentation techniques. Chapter III examines the oxidation of various organic peroxy acids and other peroxides, while Chapter IV discusses the oxidation with nitric acid or nitrogen oxides. Chapter V focuses on the properties of various oxidants and their application to hypohalite oxidation. This text will be of value to organic chemists, researchers, teachers, and students who are interested in oxidation of organic compounds.

  • Electrons In Metals And Alloys

    • 1 Edición
    • J. A. Alonso + 1 más
    • Inglés
    This book is a broad review of the electronic structure of metals and alloys. It emphasises the way in which the behavior of electrons in these materials governs the thermodynamic and other properties of these conducting materials. The theoretical treatment proceeds from a wave mechanics approach to more sophisticated techniques for the description of the properties of metals and alloys.

  • Free Radical Telomerization

    • 1 Edición
    • Charles Starks
    • Inglés
    Free Radical Telomerization focuses on the scattered theory, experimental work, and technology of free radical telomerization. This book begins by discussing the theory and general features of telomerization, free radical reactivities, and kinetics, followed by a systematic catalog of the chemistry and quantitative behavior of individual telogens. This text concludes with a presentation on cotelomerization. The telomerization reactions mediated by species other than free radicals are not covered. Other topics include the catalysis of chain transfer with transition metal salts, abstraction chain transfer activity of halo compounds, radical rearrangements during telomerization, and phosphorus compounds as telogens. This publication is recommended for chemists interested in free radical telomerization.

  • Electron Densities in Molecular and Molecular Orbitals

    • 1 Edición
    • J.R. Van Wazer
    • Inglés
    Electron Densities in Molecules and Molecular Orbitals aims to explain the subject of molecular orbitals without having to rely much on its mathematical aspect, making it more approachable to those who are new to quantum chemistry. The book covers topics such as orbitals in quantum-chemical calculations; electronic ionizations and transitions; molecular-orbital change distributions; orbital transformations and calculations not involving orbitals; and electron densities and shapes in atoms and molecules. Also included in the book are the cross-sectional plots of electron densities of compounds such as organic compounds like methane, ethane, and ethylene; monomeric lithium fluoride and monomeric methyl lithium; hydrogen cyanide and methinophosphide; and monomeric borane and diborane. The text is recommended for those who have begun taking an interest in quantum chemistry but do not wish to deal yet with the mathematics part of the subject.

  • Nuclear Spectroscopy and Reactions 40-A

    • 1 Edición
    • Joseph Cerny
    • Inglés
    Nuclear Spectroscopy and Reactions, Part A covers information regarding the development of nuclear spectroscopy and its reactions, while emphasizing in-beam spectroscopy. This part specifically covers concerns regarding accelerators, specialized auxiliary equipment, and measurement techniques for charged particles and gamma rays. Organized into three major sections, this book first discusses accelerators in low- and intermediate-energy nuclear physics, and then covers electrostatic accelerators, cyclotron, and specialized accelerators. The second section covers polarized beam and targets, as well as on-line mass separations. The last section discusses the measurement of charged particle and gamma ray spectra including the detection of semiconductor radiation, large Nal, and charged particles. This book is written to primarily benefit graduate students who are engaged in research that concerns nuclear spectroscopy.

  • Environmental Analysis

    • 1 Edición
    • Galen Ewing
    • Inglés
    Environmental Analysis contains the papers presented at the Third Annual Meeting of the Federation of Analytical Chemistry and Spectroscopy Societies in Philadelphia, Pennsylvania, November 15-18, 1976. A large number of papers were devoted to solving environmental problems. Some consisted of reviews of the state of the art with respect to specific techniques, while others represented the results of applying such techniques to particular situations. The book contains 23 papers that cover topics such as the contribution of atmospheric precipitation to the material balance of Lakes Huron and Superior; an improved method for the determination of adenosine triphosphate; and the use of a flame resonance spectrometer to analyze a range of environmental samples. Other studies include the recovery and identification of phenolic compounds from natural waters in and around petroleum industries; methods for determining of lead pollutants in air; a method for colorimetric analysis of ammonia in water; and the application of micro-Raman spectroscopy to the chemical characterization of single particles in air particulate dusts.

  • Hückel Molecular Orbital Theory

    • 1 Edición
    • Keith Yates
    • Inglés
    Huckel Molecular Orbital Theory aims to be a simple, descriptive, and non-mathematical introduction to the Huckel molecular orbital theory and its applications in organic chemistry, thus the more basic text found in the book. The book, after an introduction to related concepts such as quantum mechanics and chemical bonding, discusses the Huckel molecular orbital theory and its basic assumptions; the variation principle and the basic Huckel method; and the use of symmetry properties in simplifying Huckel method orbital calculations. The book also covers other related topics such as the extensions and improvements of the simple Huckel method; the quantitative significance Huckel molecular orbital results; and the principle of conservation of orbital symmetry. The text is recommended for undergraduate students of organic chemistry who wish to be acquainted with the basics of the Huckel molecular orbital theory.

  • Catalytic Reactions

    The Organic Chemistry of Palladium
    • 1 Edición
    • Peter Maitlis
    • Inglés
    The Organic Chemistry of Palladium, Volume I1: Catalytic Reactions deals with organic transformations resulting from palladium complexes either stoichiometrically or catalytically. One feature of a reaction catalyzed by transition metals is the absence of evidence for the typical reactive intermediates of organic chemistry, carbanions, and carbonium ions. This lack of evidence is due to the metal acting both as a source and a sink of electrons that result in energetically unfavorable ionic intermediaries. The book explains that palladium (II) can induce C-O bond formation. These reactions involve oxidation of the organic substrate and reduces the Pd(II) to metal, and are not catalytic. Industrial applications can re-oxidize the palladium metal back to Pd(II) in situ, making the reactions catalytic. The text also discusses certain reactions that can form C-O bonds as part of an oxidative process. The book also describes significant reactions that can be catalyzed by palladium metal, such as in the hydrogenation of multiple bonds, in the carbonylation of certain olefins and acetylenes, and in the catalytic cracking of high molecular weight hydrocarbons. Organic chemists, analytical chemists, investigators, and scientists whose works involve physical or inorganic chemistry will find the book truly useful.

  • Diazo Compounds

    Properties and Synthesis
    • 1 Edición
    • Manfred Regitz
    • Inglés
    Diazo Compounds: Properties and Synthesis focuses on the properties and syntheses of aliphatic diazo compounds. This monograph explores the application of diazo compounds in organic synthesis. Organized into two parts encompassing 16 chapters, this book starts with an overview of the structurally inherent effects of diazoalkenes. This monograph then examines the most important contribution of diazo compounds to the chemistry of carbenes and cycloadditions. Other chapters deal with structure, thermal behavior, acidic decomposition, spectroscopic properties, photochemistry of diazoalkenes, and synthetic methods. This book further discusses the qualitative and quantitative studies of the thermal stabilities of alkyl and aryl diazomethanes. The final chapter deals with the isotope-labeled diazo compounds that are of great importance for investigations of organic reaction mechanisms. This book is intended for chemists with an interest in the synthetic application of diazo compounds. Students and researchers engaged in the study of the physical properties of diazo compounds will find this book extremely useful.

  • Crystal Chemistry and Semiconduction in Transition Metal Binary Compounds

    • 1 Edición
    • J Suchet
    • Inglés
    Crystal Chemistry and Semiconduction in Transition Metal Binary Compounds provides information pertinent to semiconductor materials. This book discusses the different semiconduction mechanisms in special compounds, including rare earth compounds or transition metals, vitreous or liquid substances, and organic semiconductors. Organized into three parts encompassing 11 chapters, this book starts with an overview of the basic principles of chemistry, such as the periodic table and the structure of the atom. This text then discusses the substances in which atomic magnetic moment exists, and whose transport properties are not typically metallic. Other chapters examine the experimental work on the electrical conductibility of compounds of transition metals, actinides, or rare earths. This book discusses as well the theoretical concepts necessary for the construction of approximate models to estimate the properties of compounds. The final chapter deals with the modulation of visible or infrared light, which is the only application of magneto- and electro-optical effects. This book is a valuable resource for research scientists, engineers, and teachers.

  • Reactive Free Radicals

    • 1 Edición
    • J Hay
    • Inglés
    Reactive Free Radicals deals with the chemistry of reactive free radicals. The initial premise is that the reactivity of a free radical depends upon its shape and therefore upon the character of the orbital(s) containing the unpaired electron. Based on this premise, a possible explanation for some of the fascinating phenomena observed in a number of free radical reactions such as combustion and pyrolysis is offered. This book is comprised of five chapters and begins with a brief overview of the chemistry of free radicals, what they are and how they are formed, and their structure and reactivity. The emphasis is on those characteristics of free radicals attributable directly to the unpaired electron function. The reader is then introduced to the techniques used for the determination of the structure of free radicals, including electron spin resonance spectroscopy, nuclear magnetic resonance spectroscopy, and infrared spectroscopy. Subsequent chapters focus on bond dissociation energies and some of the complications arising from polar and non-polar effects in free radical reactions. This monograph should serve as a valuable reference for organic chemists as well as undergraduate and graduate students of organic chemistry.

  • Radiationless Transitions

    • 1 Edición
    • Sheng Lin
    • Inglés
    Radiationless Transitions is a critical discussion of research studies on the theory and experiments in radiationless transitions. This book is composed of nine chapters, and begins with discussions on the theory and experiment of photophysical processes of single vibronic levels and/or single rovibronic levels. The subsequent chapters deal with the spectroscopic investigations of intramolecular vibrational relaxation; the dynamics of molecular excitation by light; and the photophysical processes of small molecules in condensed phase. The discussions then shift to the high pressure effects on molecular luminescence and the internal conversion involving localized excitations, presenting one qualitative and one quantitative example, as well as the intersystem crossing with localized excitations. A chapter explores the energy transfer processes that occur after a molecule in solution is excited by light, with an emphasis on solid solutions in which the large amplitude molecular motion is largely quenched. This chapter also looks into the liquid solutions in which the molecules can translate and rotate under the influence of fluctuating forces from the liquid. The concluding chapter focuses on ultrafast processes. Researchers in the fields of physics, chemistry, and biology will benefit from this book.

  • Physical Principles and Techniques of Protein Chemistry Part A

    • 1 Edición
    • Sydney Leach
    • Inglés
    Physical Principles and Techniques of Protein Chemistry, Part A deals with the principles and application of selected physical methods in protein chemistry evaluation. This book is organized into nine chapters that cover microscopic, crystallographic, and electrophoretic techniques for protein conformational perturbations evaluation. This text first presents a general account of electron microscopy, its specimen preparation, optimum conditions for high resolution, measurement of electron micrographs, and illustrative examples of protein study. This book then examines the different types of maps from X-ray methods and the diffraction data from fibrous proteins. The subsequent chapters cover discussions on UV spectroscopy of proteins; luminescence properties of proteins and related compounds; and perturbation and flow methods for evaluation of proteins’ dynamic properties and rate constants. Other chapters deal with the evaluation of proteins’ dielectric properties using dielectric relaxation, electric birefringence, and dichroism techniques. The concluding chapters outline the theoretical and experimental advances of the electrophoretic and gel filtration methods for the study of protein structure and molecular weight. This book is of great value to chemists, biologists, and researchers who have great appreciation of protein chemistry.

  • Problem Solving with Microbeam Analysis

    • 1 Edición
    • Volumen 7
    • K. Kiss
    • Inglés
    This book provides the reader with a working knowledge sufficient to select microbeam techniques for the efficient, cost-effective solution of complex problems arising in today's high-tech industries. Primarily written for the industrial analyst whose field of expertise is other than microbeam analysis, it will also be of help to engineers, plant chemists and industrial research scientists who often seek the aid of the microbeam analyst in their problem solving. Research and plant managers as well as administrators may also find this book helpful since they may be called upon to select and/or approve high-priced microbeam instruments.The book is organized into two parts. Part I gives a brief description of the various techniques and critically compares their capabilities and limitations. Part II consists of selected applications which show how the various techniques or their combinations are applied to characterize materials and to guide research in a wide variety of fields. The examples and case histories will undoubtedly aid the reader in problem solving, quality assurance and research-related tasks. Newcomers to the field will find enough information in the book to enable them to begin practical work and to apply the techniques.

  • High and Low Erucic Acid in Rapeseed Oils

    • 1 Edición
    • John K G Kramer
    • Inglés
    High and Low Erucic Acid Rapeseed Oils: Production, Usage, Chemistry, and Toxicological Evaluation covers a wide range of subjects related to rapeseed, that is, from plant breeding, industrial processing, to nutrition and biochemistry. Composed of 22 chapters, this book first discusses the origin and properties of Brassica oilseed crops. Subsequent chapters describe the world production and trade of rapeseed and its products, as well as the history and marketing of rapeseed oil in Canada. Other chapters elucidate the chemical composition of rapeseed oil; the introduction and consumption of low erucic acid rapeseed varieties in Canada; and the development of improved rapeseed cultivars. Results obtained with consumption of high and low erucic acid rapeseed oils to experimental animals are also shown. This work will be helpful as an introductory material to those who are not familiar with the production, use, and properties of rapeseed oil.

  • Ylid Chemistry

    • 1 Edición
    • A.W. Johnson
    • Inglés
    Organic Chemistry, Volume 7: Ylid Chemistry focuses on the physical and chemical properties of ylids. This book discusses the Wittig synthesis of olefins, which involves the reaction between carbonyl compounds and phosphonium ylids. Organized into two parts encompassing nine chapters, this book starts with an overview of the definition of ylids as a substance in which a carbanion is attached directly to a heteroatom transporting a high degree of positive charge. This text then examines the unique stabilization that afforded the carbanions by the presence of the adjacent 'onium atom group, which is the special characteristic of ylids. Other chapters consider the general structure of phosphonium ylids, which virtually has no limitation on the nature of the X groups on phosphorus. This book discusses as well the Wittig reaction involving a condensation-elimina... between a phosphonium ylid and ketone. The final chapter deals with the various aspects of the chemistry of sulfur ylids. This book is a valuable resource for chemists.

  • Molecular Spectroscopy: Modern Research V3

    • 1 Edición
    • K.N. Rao
    • Inglés
    Molecular Spectroscopy: Modern Research, Volume III is a collection of papers presented at the 40th Annual Molecular Spectroscopy Symposium, held at the Ohio State University. The contributors of this seven-chapter text cover the significant advances in molecular spectroscopic research and their application in chemistry. Chapters 1 and 2 discuss first the higher-order vibration-rotation interactions in molecules and then present formulas and an insight into the direction being taken in theoretical pursuits. Chapter 3 provides an extensive compilation of published intensity and collision broadening parameters derived from infrared spectra. This chapter also contains a detailed discussion using consistent notation of some of the methods commonly applied to extract such information from laboratory spectra. Chapter 4 examines a variety of laser systems and their application in investigations involving triatomic free radicals and ions, while chapter 5 considers the developments in the microwave spectroscopic studies on nonpolar molecules when their symmetry is reduced by isotopic substitution. Chapter 6 emphasizes the quasi-linear molecular problem to develop an appreciation of the symptoms of quasi-linearity and theoretical treatments thereof. This chapter also examines the increasing role of highly resolved spectra in the interpretation of various large-amplitude motions in molecules. Lastly, Chapter 7 describes the electric multipolar moments of hydrogen and its isotopes. Spectroscopists, chemists, and researchers will find this work invaluable.

  • Absorbent Polymer Technology

    • 1 Edición
    • Volumen 8
    • L. Brannon-Peppas + 1 más
    • Inglés
    In recent years, there has been a veritable explosion of research and development in consumer-oriented fields that utilize polymeric materials which absorb large amounts of water. These fields encompass the preparation, characterization and commercialization of separation systems, pharmaceutical and personal care products such as infant diapers, feminine products, incontinence products and many other related areas. The polymeric materials utilized in these applications are known as absorbent or superabsorbent materials because of their ability to swell rapidly and to retain large volumes of water, urine and other biological fluids.The aim of this book is to introduce the fundamentals of polymer structure and swelling as related to polymers used for these superabsorbent materials. In the field of absorbence, particular attention is given to crosslinked structures which swell to more than fifty times their initial weight in water or electrolytic solutions. The book also provides descriptions of novel applications of superabsorbent materials as well as a detailed analysis of water transport in crosslinked polymers.Absorbent Polymer Technology should be of interest to chemists, polymer scientists, chemical engineers, and industrial scientists working with swellable polymeric systems in personal care, pharmaceutical, agricultural waste treatment and separation industries.

  • Organometallic Reaction Mechanisms Of The Nontransition Elements

    • 1 Edición
    • Donald Matteson
    • Inglés
    Organometallic Reaction Mechanisms of the Nontransition Elements provides selected significant developments in organometallic reaction mechanisms and outlines a self-consistent set of interpretations of these mechanisms. This book is organized into eight chapters and begins with discussions on bonding in theoretically important types of organometallic compounds and the potential surfaces and their relation to mechanisms. This is followed by significant chapters on electrophilic displacement reactions. Polar 1,2-addition and elimination reactions are covered in a separate chapter. Radical and photochemical reactions are described in the concluding chapters of the book, including the reverse reaction involving incorporation of a free metal and an organic halide into an organometallic compound. Organic chemists and researchers will find this book invaluable.

  • Basic Principles in Nucleic Acid Chemistry V1

    • 1 Edición
    • Paul O.P. Ts'o
    • Inglés
    Basic Principles in Nucleic Acid Chemistry, Volume I provides information pertinent to the fundamental aspects of nucleic acids. This book discusses the development of the basic principles in nucleic acid research that will serve as a foundation for further advancement in nucleic acid research. Organized into six chapters, this volume begins with an overview of the history of the scientific study of nucleic acid as a genetic material. This text then examines the utility of the analogs of the naturally occurring nucleic acid components as biochemical tools and as therapeutic agents. Other chapters consider mass spectrometry that deals with the production and chemistry of ions in the vapor phase. This book discusses as well the various aspects of the excited states of the nucleic acids. The final chapter deals with the systematic study of the physiochemical properties of the monomeric units of nucleic acid. This book is a valuable resource for molecular biologists, scientists, and research workers.

  • Biotransfrmtns Prepartv Organic Chemistry

    The Use of Isolated Enzymes and Whole Cell Systems in Synthesis
    • 1 Edición
    • H. G. Davies + 3 más
    • Inglés
    This volume is designed for chemists working in an organic chemistry laboratory and for all scientists with an interest in biotransformations. It summarizes the important aspects of work in the burgeoning field of biotransformations, th...[missing text]

  • Practical Capillary Electrophoresis

    • 1 Edición
    • Bozzano G Luisa
    • Inglés
    High performance capillary electrophoresis (HPCE) is the newest and perhaps most powerful separation technique available today. This single-authored text provides an integrated, comprehensive, and clearly illustrated look at the field. Users of HPCE will gain a basic understanding of principles underlying electrophoresis and go on to learn about mode selection, methods development, detection, and quantative analysis. Ideally suited for analytical chemists and analytical biochemists with applications involving small molecules, proteins, peptides, DNA, and ion separations, this book provides a comparative assessment of related techniques. The author is an internationally recognised scientist and serves as the instructor for short courses on HPCE as offered by the American Chemical Society.

  • Physical Methods in Modern Chemical Analysis V2

    • 1 Edición
    • Theodore Kuwana
    • Inglés
    Physical Methods in Modern Chemical Analysis, Volume 2 covers the fundamental principles, the instrumentation or necessary equipment, and applications of selected physical methods. This volume contains five chapters, and deals first with the theory, instrumentation, column features, and applications of high-performance liquid chromatography. The next two chapters survey the principles, experimental aspects, procedures, and specific applications of X-ray photoelectron spectroscopy and X-ray diffraction methods. A chapter discusses the technical and theoretical aspects of ion cyclotron resonance, with a special emphasis on its application in gas phase ion and neutral compounds analysis. The last chapter explores the apparatus and experimental procedures in refractive index measurements. This book will be of value to analytical chemists and analytical chemistry researchers.

  • Nuclear Spectroscopy and Reactions 40-D

    • 1 Edición
    • Joseph Cerny
    • Inglés
    Nuclear Spectroscopy and Reactions, Part D covers information regarding the development of nuclear spectroscopy and its reactions, while emphasizing in-beam spectroscopy. This part covers the general theoretical concepts of nuclear investigations. This book provides in-depth analysis of several concepts of nuclear spectroscopy, such as models of heavy and light nuclei, approaches in resonance reactions, inelastic scattering, charge exchange, and one- and two-nucleon transfer reactions. This series is written to primarily benefit graduate students who are engaged in research that concerns nuclear spectroscopy.

  • Isotopic Assessment of Heterogeneous Catalysis

    • 1 Edición
    • John Happel
    • Inglés
    Isotopic Assessment of Heterogeneous Catalysis deals with the use of isotopic tracing to study the reaction mechanisms involved in heterogeneous catalysis. It presents special methods for using isotopic and radioactive atomic species for obtaining meaningful kinetic data that can be quantitatively used in mechanistic modeling. It also considers a number of industrial reactions under steady-state reaction conditions in which superposed tracer transfer is also at steady state. This book is comprised of eight chapters and begins with an introduction to heterogeneous catalysis and an approach to reaction modeling, as well as the experimental reactors for obtaining the type of measurements and data needed in transient modeling. The application of isotopes in studies of heterogeneous catalysis is also discussed. Subsequent chapters focus on the choice of intermediates and reaction steps in tracer experiments; the number of overall stoichiometric chemical reactions that can occur in order to generate product molecules from reactants; superposition modeling of mechanisms; and steady-state tracing. Transient tracing and the development of rate equations are also described. This monograph is intended primarily for students and teachers of such subjects as physical chemistry, as well as research scientists and technologists.

  • Second Quantization-Based Methods in Quantum Chemistry

    • 1 Edición
    • Poul Joergensen
    • Inglés
    Second Quantization-Based Methods in Quantum Chemistry presents several modern quantum chemical tools that are being applied to electronic states of atoms and molecules. Organized into six chapters, the book emphasizes the quantum chemical methods whose developments and implementations have been presented in the language of second quantization. The opening chapter of the book examines the representation of the electronic Hamiltonian, other quantum-mechanical operators, and state vectors in the second-quantization language. This chapter also describes the unitary transformations among orthonormal orbitals in an especially convenient manner. In subsequent chapters, various tools of second quantization are used to describe many approximation techniques, such as Hartree-Fock, perturbation theory, configuration interaction, multiconfigurational Hartree-Fock, cluster methods, and Green’s function. This book is an invaluable source for researchers in quantum chemistry and for graduate-level students who have already taken introductory courses that cover the fundamentals of quantum mechanics through the Hartree-Fock method as applied to atoms and molecules.

  • Computational Statistical Mechanics

    • 1 Edición
    • W.G. Hoover
    • Inglés
    Computational Statistical Mechanics describes the use of fast computers to simulate the equilibrium and nonequilibrium properties of gases, liquids, and solids at, and away from equilibrium. The underlying theory is developed from basic principles and illustrated by applying it to the simplest possible examples.Thermodynam... based on the ideal gas thermometer, is related to Gibb's statistical mechanics through the use of Nosé-Hoover heat reservoirs. These reservoirs use integral feedback to control temperature. The same approach is carried through to the simulation and analysis of nonequilibrium mass, momentum, and energy flows. Such a unified approach makes possible consistent mechanical definitions of temperature, stress, and heat flux which lead to a microscopic demonstration of the Second Law of Thermodynamics directly from mechanics. The intimate connection linking Lyapunov-unstable microscopic motions to macroscopic dissipative flows through multifractal phase-space structures is illustrated with many examples from the recent literature.The book is well-suited for undergraduate courses in advanced thermodynamics, statistical mechanic and transport theory, and graduate courses in physics and chemistry.

  • Relaxation kinetics

    • 1 Edición
    • Claude Bernasconi
    • Inglés
    Relaxation Kinetics focuses on the theory of relaxation kinetics (also known as chemical relaxation) and the experimental techniques used in the study of fast reactions. Topics covered include relaxation times in single-step, two-step, and multistep systems; small perturbations; and relaxation amplitudes in single-step and multistep systems. Chemical relaxation in complex systems is also described, and a complete solution of the relaxation equation is presented. This book is comprised of 16 chapters divided into two sections and begins with an overview of the basic principles of chemical relaxation, including the linearization of rate equations, relaxation times, and transient and stationary relaxation methods. The following chapters explore relaxation times in single-step, two-step, and multistep systems, as well as relaxation amplitudes in single-step and multistep systems. The possibility of linearization of a rate equation for ""small"" perturbations is then considered, along with the derivation of the complete relaxation equation. The next chapter discusses transient relaxation techniques and explains how the data are analyzed for the stationary techniques when dealing with the specific techniques. The second section is devoted to experimental techniques such as the temperature-jump method, the electric field-jump method, and the concentration-jump method. Ultrasonic techniques and stationary electric field methods are also described. This monograph will be a valuable resource for chemists and physicists.

  • Sample Introduction in Atomic Spectroscopy

    • 1 Edición
    • Volumen 4
    • J. Sneddon
    • Inglés
    A comprehensive and detailed description of the most widely used sample introduction techniques in atomic spectroscopy is presented in this volume. Comprising twelve separate chapters, the book describes the theory in detail, and gives an account of techniques and selected applications of sample introduction systems. The first chapter is a general overview on sample introduction. The remaining eleven chapters are each devoted to a specific sample introduction and deal with the basic principles, describe the system, advantages, disadvantages and selected applications. Systems described are: pneumatic nebulization, electrothermal vaporization, laser ablation, impaction/electrosta... precipitation, slurry atomization, ultrasonic and thermospray nebulization, hydride generation, chromatographic, spark and arc, low-pressure discharges, flow injection analysis and direct solid introduction. Each chapter is suitable for a separate discussion. Being a unique textbook in this field, Sample Introduction in Atomic Spectroscopy should prove invaluable for courses at graduate level.

  • Structural Analysis of Organic Compounds by Combined Application of Spectroscopic Methods

    • 1 Edición
    • Volumen 1
    • J.T. Clerc + 2 más
    • Inglés
    Structural Analysis of Organic Compounds covers some practical analytical aspects of organic structural analysis by combined application of spectroscopic methods. This book is composed of three parts encompassing 35 chapters that specifically describe infrared-, ultraviolet-, proton and carbon-13 nuclear magnetic resonance and mass spectroscopy. Considerable chapters discuss the problems intended to cover a wide variety of chemical structure and spectroscopic argument, thereby exemplifying interpretations and comment on specific practical aspects of the problem solving procedure. The remaining chapters provide short supplementing research concerning various aspects of structural analysis. This book will prove useful to organic and analytical chemists.

  • Rare Earth Intermetallics

    • 1 Edición
    • W.E. Wallace
    • Inglés
    Rare Earth Intermetallics provides an account of the magnetic characteristics of rare earth intermetallics. This book discusses bulk magnetic characteristics, such as temperature dependence of susceptibility, saturation magnetization, nature of the cooperative magnetic phase, low temperature specific heats, and related thermal properties. Other topics include the magnetic interactions, crystal field interaction by the operator equivalent method, and rare earth-nontransition metal systems. The miscellaneous IVA compounds, rare earth substitution, variation in the iron moment, and compounds with 4d and 5d transition metals are also elaborated in this text. This publication is recommended for students and researchers interested in rare earth intermetallics.

  • Electronic Absorption Spectra and Geometry of Organic Molecules

    An Application of Molecular Orbital Theory
    • 1 Edición
    • Hiroshi Suzuki
    • Inglés
    Electronic Absorption Spectra and Geometry of Organic Molecules: An Application of Molecular Orbital Theory focuses on electronic absorption spectra of organic compounds and molecules. The book begins with the discussions on molecular spectra, electronic absorption spectra of organic compounds, and practical measures of absorption intensity. The text also focuses on molecular orbital theory and group theory. Molecular state functions; fundamental postulates of quantum theory; representation of symmetry groups; and symmetry operations and symmetry groups are described. The book also discusses shape of absorption bands and geometry of excited electronic states; effect of environment on electronic absorption spectra; and the application of simple LCAO MO method to simple π systems. An evaluation of the parameters used in simple LCAO MO method is presented. The text notes the usefulness and restrictions of simple LCAO MO method in the interpretation of electronic absorption spectra. The correlation between results of simple MO calculation and spectral data in aromatic hydrocarbons, and correlation between results of simple MO calculation and spectral data in conjugated linear polyenes are discussed. The book also looks at MO methods and the relations between electronic absorption spectra and geometry of molecules, biphenyl, styrene, and related compounds. The text is a good source of data for researchers and chemistry students who want to study electronic absorption spectra.

  • Structure and Bonding in crystals

    • 1 Edición
    • Alexandra Nsvrotsky
    • Inglés
    Structure and Bonding in Crystals, Volume II discusses the factors determining crystal structure. This book examines the principles of structure and bonding in complex solids. Divided into 13 parts, this volume begins with an overview of the development of atomic pseudopotentials and the discovery that they could be applied directly to atoms in crystals. This book then provides an understanding of other relevant topics, including ionic radii, bond strength, and bond length. Other chapters focus on the problems of classifying complex solids and describe the relationship between their structures. This text also describes the alloy structure to help know how compounds react or transform. This book further explores the geometrical relationships between different structure types in crystals. The final chapter deals with the contribution of Mooser and Pearson in the study of energy-band theory and chemical bonding. Solid-state physicists and chemists, geophysicists, metallurgists, and ceramists will find this book extremely useful.

  • The Proteins Pt 3

    • 3 Edición
    • Hans Neurath
    • Inglés
    The Proteins, Third Edition, Volume II is a three-chapter text that highlights the application of methods of organic chemistry to the study of protein structure. Chapter 1 reviews the chemical modification of proteins by group- and site-specific reagents. This chapter also discusses the methods for the chemical modification of proteins and their application to the study of the structure, conformation, and biologic activity of certain proteins. Chapter 2 describes the synthesis of peptides by solution methods and the procedures employed for the synthesis of biologically active peptide hormones. This chapter also deals with the many difficulties inherent in the application of the existing synthetic methods and emphasizes the stringent standards that must be maintained for the successful chemical synthesis of naturally occurring polypeptides. Chapter 3 presents the solid-phase methods for the synthesis of peptides on solid supports. Organic chemists and researchers, teachers and undergraduate students will find this book invaluable.

  • Theoretical Chemistry Advances and Perspectives V2

    • 1 Edición
    • Henry Eyring
    • Inglés
    Theoretical Chemistry: Advances and Perspectives, Volume 2 covers all aspects of theoretical chemistry. This book reviews the techniques that have been proven successful in the study of interatomic potentials in order to describe the interactions between complex molecules. The ground state properties of the interacting electron gas when a magnetic field is present are also elaborated, followed by a discussion on the Gellman-Brueckner-Ma... theory of the correlation energy that has applications in atomic and molecular systems. This volume considers the instability of the Hartree-Fock ground state in a magnetic field and very high magnetic fields that are pertinent to the structure of matter in collapsed stellar objects. The electron-hole plasma in certain highly-doped semiconductors and many-electron correlation problem are likewise included. This publication is a good reference for students and researchers conducting work on the mathematical description of chemistry.

  • Newer Methods of Preparative Organic Chemistry V2

    • 1 Edición
    • Wilhelm Foerst
    • Inglés
    Newer Methods of Preparative Organic Chemistry, Volume II focuses on several improved methods in preparative organic chemistry. This book presents a variety of detailed laboratory procedures in organic chemistry. Organized into 14 chapters, this volume starts with an overview of the compound acetoacetaldehyde, which is prepared from sodium formylacetone with acetic anhydride in ether. This text then explains the requirements I a rational peptide synthesis, including controlled reaction conditions, retention of optical activity, high yields, and analogous applicability to free amino acids and to terminal amino acids of oligopeptides. Other chapters consider the general equation of the inner anhydride of acetic acid. This book discusses as well the relation between polarity and reactivity in phosphines. The final chapter deals with the methylation of aromatic compounds, which is a typical radical reaction. This book is intended for synthetic organic chemists. Graduate students and research workers in the fields of organic chemistry and biochemistry will find this book useful.

  • Organoborane Chemistry

    • 1 Edición
    • Thomas Onak
    • Inglés
    Organoborane Chemistry deals with the chemistry of organoboranes, with emphasis on compounds containing a carbon-boron bond. The structure and physical properties of organoboranes are discussed, along with the reactions of three-coordinate and four-coordinate organoboranes, organodiboranes, and other organopolyboranes such as organotetraboranes and organopentaborane compounds. Comprised of seven chapters, this book begins with an overview of multistep synthetic or degradative reactions involving organoboron compounds, along with the nomenclature for such compounds. The next chapter examines the structure and physical properties of organoboranes, with emphasis on boron-carbon bond lengths, electronic transitions, and molecular orbital calculations. Subsequent chapters focus on three-coordinate and four-coordinate organoboranes, together with their synthesis, reactions, and properties; hydroboration and dehydroboration of organodiboranes; and the synthesis, reactions, and physical properties of other organopolyboranes such as organotetraboranes, organopentaborane compounds, and organodecaborane compounds. The final chapter is devoted to cyclic boron-carbon systems and the applications of organoboron compounds. This monograph should be of interest to organic chemists.

  • Scandium Its Occurrence, Chemistry Physics, Metallurgy, Biology and Technology

    • 1 Edición
    • C.T. Horovitz
    • Inglés
    Scandium provides a comprehensive review of all aspects of scandium, including its occurrence in nature; its chemical, physical and technological properties; its biological significance and toxic effects; and its applications. The book covers the discovery and history of scandium, its abundance in rock-forming minerals and common type rocks, and its derivation, extraction, and preparation. It also deals with the physical metallurgy of scandium, its physical and chemical properties, its isotopes, its alloys and intermetallic compounds, and its economic and technological applications. The text is recommended for chemists, metallurgists, and experts who would like to know particularly more about scandium and its possible uses.

  • Glass Science

    • 1 Edición
    • Wilhelm Eitel
    • Inglés
    Silicate Science, Volume VII: Glass Science reviews the advances made in silicate research from 1960 through 1970, with emphasis on glass science. Although much of the discussion is still based on the classic physical chemistry theories, an attempt is made to introduce the essential solid-state physics principles and to show how they can be applied to non-crystalline solids. The properties of many diverse vitreous materials are presented. Comprised of seven chapters, this volume begins with an overview of glass-forming elements and their compounds, paying particular attention to their general character as glass-forming phases. The properties of of chalcogenide glasses and non-silicate oxide glasses are also discussed. The next chapters focus on the viscosity of molten glass; the electrolytic conductivity of silicates; the specific volumina of glass melts; and specific applications of infrared spectroscopy to solving structure problems. The physical properties of glass, varied by thermal actions in the transformation and annealing ranges, are considered as well. The final chapter is devoted to miscellaneous additional constitution problems, with particular reference to the volatilization of lead silicate glasses from glass melts and vitreous semiconductors of chalcogenide glasses. This book will be of interest to mineralogists and crystallographers.

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