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Elsevier

Libros en Química

  • Chemistry of the Elements

    • 2 Edición
    • N. N. Greenwood + 1 más
    • Inglés
    When this innovative textbook first appeared in 1984 it rapidly became a great success throughout the world and has already been translated into several European and Asian languages. Now the authors have completely revised and updated the text, including more than 2000 new literature references to work published since the first edition. No page has been left unaltered but the novel features which proved so attractive have been retained. The book presents a balanced, coherent and comprehensive account of the chemistry of the elements for both undergraduate and postgraduate students. This crucial central area of chemistry is full of ingenious experiments, intriguing compounds and exciting new discoveries. The authors specifically avoid the term `inorganic chemistry' since this evokes an outmoded view of chemistry which is no longer appropriate in the final decade of the 20th century. Accordingly, the book covers not only the 'inorganic' chemistry of the elements, but also analytical, theoretical, industrial, organometallic, bio-inorganic and other cognate areas of chemistry. The authors have broken with recent tradition in the teaching of their subject and adopted a new and highly successful approach based on descriptive chemistry. The chemistry of the elements is still discussed within the context of an underlying theoretical framework, giving cohesion and structure to the text, but at all times the chemical facts are emphasized. Students are invited to enter the exciting world of chemical phenomena with a sound knowledge and understanding of the subject, to approach experimentation with an open mind, and to assess observations reliably. This is a book that students will not only value during their formal education, but will keep and refer to throughout their careers as chemists.

  • Advances in Heterocyclic Chemistry

    • 1 Edición
    • Volumen 70
    • Inglés
    Established in 1960, Advances in Heterocyclic Chemistry is the definitive serial in the area--one of great importance to organic chemists, polymer chemists, and many biological scientists. Written by established authorities in the field, the comprehensive reviews combine descriptive chemistry and mechanistic insight and yield an understanding of how the chemistry drives the properties.

  • Advances in Heterocyclic Chemistry

    • 1 Edición
    • Volumen 69
    • Inglés
    This volume includes the third, and final, part of a trilogy on acyclonucleosides by E.S.H. El Ashry and Y. El Kilany which began in Volume 67. This chapter covers tri-, tetra-, and penta- seco-nucleosides. These compounds are of considerable interest due to their relationship to newer anti AIDS drugs. Other chapters deal with the use of organohypervalent iodine reagents in the synthesis of organic compounds, a review of the conformational analysis of saturated 6-membered oxygen containing rings, comprising the oxanes, the various dioxanes, trioxanes, and tetroxanes, and heteropentalenes with fused imidazoles of 1,2,4-triazole rings.

  • Synthetic and Stereochemical Aspects

    • 1 Edición
    • Volumen 2
    • Philip Page
    • Inglés
    The impact of organosulfur chemistry, especially in the areas of heterocyclic chemistry, stereocontrolled processes, and asymmetric synthesis, has led to a resurgence of interest in the field. This book is the secondin a series intended to provide coverage of topics of current interest throughout the whole range of organosulfur chemistry. Each volume is comprised of five or six chapters, each consisting of an in-depth, self-contained review in a well-defined area. This volume and its predecessor Organosulfur Chemistry, Synthetic Aspects will prove valuable references for researchers and practitioners in organic chemistry.

  • Chemistry and Biology

    • 1 Edición
    • Volumen 50
    • Inglés
    Chemistry and Biology is a celebration of the outstanding contributions to the field by Professor R.H.F. Manske, who founded the series in 1950. This special volume demonstrates the dramatic changes in alkaloidchemistry since then. It also offers a unique overview of recent developments in major areas of alkaloid chemistry and biology and looks at how these areas will develop in the future. These fourteen contributions are written by many of the leading alkaloid chemists in the world, and thus comprise a unique view of alkaloids and their contributions to the health and well-being of humankind.

  • Annual Reports in Medicinal Chemistry

    • 1 Edición
    • Volumen 32
    • James A. Bristol
    • Inglés
    Annual Reports in Medicinal Chemistry provides timely and critical reviews of important topics in medicinal chemistry together with an emphasis on emerging topics in the biological sciences, which are expectedto provide the basis for entirely new future therapies.

  • Fundamentals of Inorganic Chemistry

    An Introductory Text for Degree Studies
    • 1 Edición
    • J Barrett + 1 más
    • Inglés
    This work is a foundation course text for first and second year undergraduates in which description and understanding of inorganic chemistry are fully integrated. It covers the main underlying theoretical ideas, taking account of the level of mathematical ability among present-day students commencing university study. Each chapter provides "worked example" problems, supported by additional problem-exercises which test comprehension and serve for revision or self-study.

  • Structure and Chemistry (Part E)

    • 1 Edición
    • Volumen 19
    • Atta-ur Rahman
    • Inglés

  • Advances in Supramolecular Chemistry

    • 1 Edición
    • Volumen 4
    • G.W. Gokel
    • Inglés
    Part of a series which presents reports of efforts in all areas of supramolecular science, this volume discusses a variety of topics in the field.

  • Analytical Gas Chromatography

    • 2 Edición
    • Walter Jennings + 2 más
    • Inglés
    Gas chromatography remains the world's most widely used analytical technique, yet the expertise of a large proportion of chromatographers lies in other fields. Many users have little real knowledge of the variablesin the chromatographic process, the interaction between those variables, how they are best controlled, how the quality of their analytical results could be improved, and how analysis times can be shortened to facilitate the generation of a greater numberof more reliable results on the same equipment. An analyst with a more comprehensive understanding of chromatographic principles and practice, however, can often improve the quality of the data generated, reduce the analytical time, and forestall the needto purchase an additional chromatograph or another mass spectrometer. The Second Edition of Analytical Gas Chromatography is extensively revised with selected areas expanded and many new explanations and figures. The section on sample injection has been updated to include newer concepts of split, splitless, hot and cold on-column, programmed temperature vaporization, and large volume injections. Coverage of stationary phases now includes discussion, applications, and rationale of the increased thermal and oxidative resistance of the newly designed silarylenepolysiloxa... polymers. Conventional and"extended range"polyethylene glycol stationary phases are examined from the viewpoints of temperature range and retention index reliabilities, and the chapter on"Variables"has been completely rewritten. The ways in which carrier gas velocity influences chromatographic performance is considered in detail, and includes what may be the first rational explanation of the seemingly anomalous effects that temperature exercises on gas viscosity (and gas flow). The practical effects that these changes cause to the chromatography is examined in pressure-, flow-, and"EPC-"regulated systems."Column Selection, Installation, and Use"has been completely rewritten as well. The accuracy of theVan Deemter plots has been greatly enhanced; a new program corrects for the first time for the changes in gas density and diffusion that occur during the chromatographic process because of solute progression through the pressure drop of the column. A new section has also been added on meeting thespecial requirements of columns destined for mass spectral analysis. The chapter on"Special Applications"has been expanded to include considerations of"selectivity tuning,"of fast analysis, and the section of Applications has been thoroughly updated and expanded.

  • Gas Purification

    • 5 Edición
    • Arthur L Kohl + 1 más
    • Inglés
    This massively updated and expanded fifth edition is the most complete, authoritative engineering treatment of the dehydration and gas purification processes used in industry today. Of great value to design and operations engineers, it gives practical process and equipment design descriptions, basic data, plant performance results, and other detailed information on gas purification processes and hardware. This latest edition incorporates all significant advances in the field since 1985.You will find major new chapters on the rapidly expanding technologies of nitrogen oxide control, with discussions of regulatory requirements and available processes; absorption in physical solvents, covering single component and mixed solvent systems; and membrane permeation, with emphasis on the gas purification applications of membrane units. In addition, new sections cover areas of strong current interest, particularly liquid hydrocarbon treating, Claus plant tail gas treating, thermal oxidation of volatile organic compounds, and sulfur scavenging processes.This volume brings you expanded coverage of alkanolamines for hydrogen sulfide and carbon dioxide removal, the removal and use of ammonia in gas purification, the use of alkaline salt solutions for acid gas removal, and the use of water to absorb gas impurities. The basic technologies and all significant advances in the following areas are thoroughly described: sulfur dioxide removal and recovery processes, processes for converting hydrogen sulfide to sulfur, liquid phase oxidation processes for hydrogen sulfide removal, the absorption of water vapor by dehydrating solutions, gas dehydration and purification by adsorption, and the catalytic and thermal conversion of gas impurities.

  • Expanded, Contracted & Isomeric Porphyrins

    • 1 Edición
    • Volumen 15
    • J.L. Sessler + 1 más
    • Inglés
    The porphyrins are a class of naturally-occurring macrocycles and are ubiquitous in our world. As such, they have been called the Pigments of Life. This auspicious designation reflects their importance in numerous biological functions. Indeed, life as we understand it relies on the full range of biological processes that are either performed by or catalyzed by porphyrin-containing proteins. Chlorophyll-containi... photosynthetic reaction centers in plants, for instance, convert light energy into chemical energy while producing oxygen along the way. It is this oxygen, evolved from photosynthesis, that is transported, stored, and reduced by heme-containing proteins in many organisms, including mammals. Not surprisingly, therefore, these molecules remain of fundamental interest to chemists and biochemists. Indeed, they continue to be intensely investigated by researchers world-wide.Inspired by the importance of the porphyrins, a new research direction has emerged in recent years that is devoted to the preparation and study of non-porphyrin polypyrrole macrocycles. Here, the principal objectives have been to generate completely synthetic systems that bear some structural resemblance to naturally-occurring porphyrin derivatives while being quite different in their specific chemical makeup. Within this context, three different research directions have evolved, namely those involving the syntheses of contracted, isomeric, and expanded porphyrins, respectively. It is the chemistry of these systems that is the subject of this book. Because of the newness of the field, the emphasis of this book will be on synthesis and characterization (all work on porphyrin isomers and much of that associated with expanded porphyrins has only appeared in the last 10 years). One chapter on applications has, however, been included. Also, in the context of the preparative portions of the text, some efforts have been made to explain why various porphyrin analogue targets are of interest.

  • Progress in Heterocyclic Chemistry

    A Critical Review of the 1996 Literature Preceded by Two Chapters on Current Heterocyclic Topics
    • 1 Edición
    • Volumen 9
    • Thomas L. Gilchrist + 1 más
    • Inglés
    Progress in Heterocyclic Chemistry (PHC) is an annual review series commissioned by the International Society of Heterocyclic Chemistry (ISHC). The volumes in the series contain both highlights of the previous year's literature on heterocyclic chemistry and articles on new developing topics of interest to heterocyclic chemists.The highlight chapters in Volume 9 are all written by leading researchers in their field and these chapters constitute a systematic survey of the important original material reported in the literature on heterocyclic chemistry in 1996. Additional articles in this volume also review "The Synthesis of Oxazoles from Diazocarbonyl Compounds" and "The Heterocyclic Chemistry Associated with the Herbicide Glyphosate".As with previous volumes in the series, Volume 9 will enable academic and industrial chemists, and advanced students to keep abreast of developments in heterocyclic chemistry in an effortless way.

  • High Performance Liquid Chromatography & Capillary Electrophoresis

    Principles and Practices
    • 1 Edición
    • Andrea Weston + 1 más
    • Inglés
    HPLC and CE: Principles and Practice presents the latest information on the most powerful separation techniques available: high-performance liquid chromatography (HPLC) and capillary electrophoresis (CE). Fundamental theory, instrumentation, modes of operation, and optimization of separations are presented in a concise, non-technical style to help the user in choosing the appropriate technique quickly and accurately. Well- illustrated and containing convenientend-of-cha... summaries of the major concepts, the book provides in-depth coverage of trouble-shooting, improvement of resolution, data manipulation, selectivity, and sensitivity.Graduate students, technicians, and researchers who must use separations with little or no background in analytical chemistry can overcome separation anxiety and get started in obtaining the best possible separations in minimal time. The book will alsobe useful to analytical chemists who need a better understanding of theory and processes.

  • Techniques in Protein Chemistry

    • 1 Edición
    • Volumen 8
    • Inglés
    Praise for the Series:"The mainly sharp scientific focus of this set of snapshots is a credit to both the contricutors and the editorial team."--Biotechnolog... and Applied Biochemistry Techniques in Protein Chemistry VIII is the latest volume in this successful series. As a valuable bench-top reference tool for protein chemists, the ten section sof the book are divided by subject area to show the reader which techniques are currently applied to particular problems in protein science. This approach reflects current trends in which specific instruments and methodologies are used in several different areas.

  • Serotonin Receptors and their Ligands

    • 1 Edición
    • Volumen 27
    • B. Olivier + 2 más
    • Inglés
    An international group of authors have produced an overview of the progress made in the medicinal chemistry of compounds (selectively) acting at serotonin receptors or serotonin transporters either as agonists, partial agonists or antagonists.Structur... - affinity relationships and structure - activity relationships of agonists, partial agonists, and antagonists of 5-HT receptors and uptake sites, are discussed. Structure, sequence homology and the effect of site-directed mutations of 5-HT receptors and the reuptake site on the binding of ligands show the tremendous impact of molecular biology on medicinal chemistry research. Also discussed is the pharmacology and (potential) clinical applications of ligands for the 5-HT receptors and the reuptake site. By developing elegant techniques of cloning and expression of serotonin receptor subtypes, their mutants and chimeras, a unique opportunity was offered to study the binding mode of serotoninergic ligands to their receptors and transporters.The distribution, structure and homologies of serotonin receptor subtypes and the structure of the serotonin transporter are also taken into account.The (potential) therapeutic applications of ligands of the different subtypes are described.Altogether an excellent addition to the Pharmacochemical Library series.

  • Advances in Carbohydrate Chemistry and Biochemistry

    • 1 Edición
    • Volumen 52
    • Inglés
    Since its inception in 1945, this serial has provided critical and integrating articles written by research specialists in industrial, analytical, and technological aspects of biochemistry, organic chemistry, and instrumentation methodology in the study of carbohydrates. The articles provide a definitive interpretation of the current status and future trends in carbohydrate chemistry and biochemistry.

  • Annual Reports on NMR Spectroscopy

    • 1 Edición
    • Volumen 34
    • Inglés
    NMR is used in all areas of modern science, and its applications continue to grow. In 1995 we celebrated the 50th anniversary of the discovery of NMR Spectroscopy and almost 30 years since the appearance of the firstvolume of Annual Reports on NMR Spectroscopy. During these years, a large and diverse collection of topics have been covered, and the contents of Volume 34 are no exception. This volume consists of six chapters covering a wide range of polymer science topics. Each chapter demonstrates the unique ability of NMR to provide information of both general and special interests.

  • Advances in Organometallic Chemistry

    • 1 Edición
    • Volumen 41
    • Inglés
    This widely-acclaimed serial contains authoritative reviews that address all aspects of organometallic chemistry, a field which has expanded enormously since the publication of Volume 1 in 1964. Almost all branches of chemistry and material science now interface with organometallic chemistry--the study of compounds containing carbon–metal bonds. Organometallic compounds range from species which are so reactive that they only have a transient existence at ambienttemperatures to species which are thermally very stable. Organometallics are used extensively in the synthesis of useful compounds on both large and small scales. Industrial processes involving plastics, polymers, electronic materials, and pharmaceuticals all depend on advancements in organometallic chemistry.This book is an essential reference work for the academic and industrial chemist and will provide up-to-date material at the cutting edge of chemistry research.

  • Growth and Properties of Ultrathin Epitaxial Layers

    • 1 Edición
    • Volumen 8
    • Inglés
    Although there has been steady progress in understanding aspects of epitaxial growth throughout the last 30 years of modern surface science, work in this area has intensified greatly in the last 5 years. A number of factors have contributed to this expansion. One has been the general trend in surface science to tackle problems of increasing complexity as confidence is gained in the methodology, so for example, the role of oxide/metal interfaces in determining the properties of many practical supported catalysts is now being explored in greater detail. A second factor is the recognition of the potential importance of artificial multilayer materials not only in semiconductor devices but also in metal/metal systems because of their novel magnetic properties. Perhaps even more important than either of these application areas, however, is the newly-discovered power of scanning probe microscopies, and most notably scanning tunneling microscopy (STM), to provide the means to study epitaxial growth phenomena on an atomic scale under a wide range of conditions. These techniques have also contributed to revitalised interest in methods of fabricating and exploiting artificial structures (lateral as well as in layers) on a nanometre scale.This volume, on Growth and Properties of Ultrathin Epitaxial Layers, includes a collection of articles which reflects the present state of activity in this field. The emphasis is on metals and oxides rather than semiconductors.

  • Chemistry and Pharmacology

    • 1 Edición
    • Volumen 49
    • Inglés
    Internationally acclaimed for more than 40 years, this Series, founded by the late Professor R.H.F. Manske, continues to provide outstanding coverage of the rapidly expanding field of the chemotaxonomy, structure elucidation, synthesis, biosynthesis, and biology of all classes of alkaloids from higher and lower plants, marine organisms, or various terrestrial animals. Each volume provides, through its distinguished authors, up-to-date and detailed coverage of particular classes or sources of alkaloids. Over the years, this Series has become the standard in natural product chemistry to which all other book series aspire. The Alkaloids: Chemistry and Pharmacology endures as an essential reference for all naturalproduct chemists and biologists who have an interest in alkaloids, their diversity, and their unique biological profile.

  • Imidazole and Benzimidazole Synthesis

    • 1 Edición
    • M. R. Grimmett
    • Inglés
    Imidazole and Benzimidazole Synthesis is a comprehensive survey of the known methods of syntheses and ring modification. It brings together the multitude of synthesis of the imidazole ring in a systemic way interms of specific bond formation, and recommends the most attractive synthetic approaches. It also collects non-ring-synthetic approaches to classes of compounds such as nitro-, halogeno-, and amino-imidazoles, and covers the synthesis of N-substituted compounds and preparations of specific isomers.

  • Advances in Asymmetric Synthesis

    • 1 Edición
    • Volumen 2
    • Bozzano G Luisa
    • Inglés

  • Advances in Heterocyclic Chemistry

    • 1 Edición
    • Volumen 68
    • Inglés
    The first chapter in this volume, by E.S.H. El-Ashry, represents the second part of a trilogy on nucleosides he began in Volume 67. This chapter deals with diseco-nucleosides, or analogs of nucleosides in which thereare two bond disconnections. Other chapters deal with the importance of cyclic sulfates as intermediates in organic synthesis, methlypyridines and other methylazines as precursors to biand polyheterocycles, and the variety of heterocycles in nucleoside analogs in heteromonocyclic bases.

  • Inorganic Chemistry

    An Industrial and Environmental Perspective
    • 1 Edición
    • Thomas W. Swaddle
    • Inglés
    This book addresses the question, What is inorganic chemistry good for? rather than the more traditional question, How can we develop a theoretical basis for inorganic chemistry from sophisticated theories of bonding? The book prepares students of science or engineering for entry into the multi-billion-dollar inorganic chemical and related industries, and for rational approaches to environmental problems such as pollution abatement, corrosion control, and water treatment. A much expanded and updated revision of the 1990 text, Applied Inorganic Chemistry (University of Calgary Press), Inorganic Chemistry covers topics including atmospheric pollution and its abatement, water conditioning, fertilizers, cement chemistry, extractive metallurgy, metallic corrosion, catalysts, fuel cells and advanced batter technology, pulp and paper production, explosives, supercritical fluids, sol-gel science, materials for electronics, and superconductors. Though the book waswritten as a textbook for undergraduates with a background of freshman chemistry, it will also be a valuable sourcebook for practicing chemists, engineers, environmental scientists, geologists, and educators.

  • Handbook of Chemical Compound Data for Process Safety

    • 1 Edición
    • Carl L. Yaws
    • Inglés
    This book provides comprehensive safety and health-related data for hydrocarbons and organic chemicals as well as selected data for inorganic chemicals.

  • Instrumental Methods in Food Analysis

    • 1 Edición
    • Volumen 18
    • J.R.J. Paré + 1 más
    • Inglés
    Instrumental Methods in Food Analysis is aimed at graduate students in the science, technology and engineering of food and nutrition who have completed an advanced course in food analysis. The book is designed to fit in with one or more such courses, as it covers the whole range of methods applied to food analysis, including chromatographic techniques (HPLC and GC), spectroscopic techniques (AA and ICP), electroanalytical and electrophoresis techniques.No analysis can be made without appropriate sample preparation and in view of the present economic climate, the search for new ways to prepare samples is becoming increasingly important. Guided by the need for environmentally-frie... technologies, the editors chose two, relatively new techniques, the microwave-assisted processes (MAPTM (Chapter 10) and supercritical fluid extraction (Chapter 11).Features of this book:- is one the few academic books on food analysis specifically designed for a one semester or one year course-it contains updated information- the coverage gives a good balance between theory, and applications of techniques to various food commodities.The chapters are divided into two distinct sections: the first is a description of the basic theory regarding the technique and the second is dedicated to a description of examples to which the reader can relate in his/her daily work.

  • Fuzzy Logic in Chemistry

    • 1 Edición
    • Dennis H. Rouvray
    • Inglés
    Fuzzy Logic has gained increasing acceptance as a way to deal with complexity and uncertainty in many areas of science and engineering. This book is the first to address its practical applications to chemical systems. Ten distinguished authors discuss the role of fuzzy logic in the characterization of a variety of chemical concepts, including chirality, quantum systems, molecular engineering and design, and hierarchical classification methods. Fuzzy Logic in Chemistry will appeal to both students and professionals who are seeking to learn more about theory and applications in an area of growing importance to the physical sciences.

  • Advances in Atomic Spectroscopy

    • 1 Edición
    • Volumen 3
    • J. Sneddon
    • Inglés
    This series describes selected advances in the area of atomic spectroscopy. It is primarily intended for the reader who has a background in atmoic spectroscopy; suitable to the novice and expert. Although a widely used and accepted method for metal and non-metal analysis in a variety of complex samples, Advances in Atomic Spectroscopy covers a wide range of materials. Each Chapter will completely cover an area of atomic spectroscopy where rapid development has occurred.

  • Advances in Molecular Structure Research

    • 1 Edición
    • Volumen 3
    • Inglés

  • Advances in Macromolecular Carbohydrate Research

    • 1 Edición
    • Volumen 1
    • R.J. Sturgeon
    • Inglés
    In recent years the most significant advances in carbohydrate research have been made in the knowledge of the structure and function of carbohydrates in the macromolecular state. This title addresses those areas of the subject in which the authors believe the most important work is being carried out.

  • Advances in Quantum Chemistry

    Recent Advances in Computational Quantum Chemistry
    • 1 Edición
    • Volumen 28
    • Per-Olov Lowdin
    • Inglés
    Advances in Quantum Chemistry publishes surveys of current developments in the rapidly developing field of quantum chemistry--a field that falls between the historically established areas of mathematics, physics,chemistry, and biology. With invited reviews written by leading international researchers, each presenting new results, this quality serial provides a single vehicle for following progress in this interdisciplinary area. "Volume 28 collects papers written in honor of Geerd H.F. Diercksen. Diercksen is a pioneer in the field of quantum mechanics whose research includes studies of the structure and stability of hydrogen-bonded and Van der Waals dimers and small clusters, thevibrational and rotational spectra of diatomic and triatomic molecules, on static electric properties in solutions and of molecules absorbed on surfaces. His results are essential in molecular and atomic physics, in astrophysics, and in biochemistry.

  • Handbook of Palladium-Catalysed Organic Reactions

    • 1 Edición
    • J. C. Fiaud + 2 más
    • Inglés
    This comprehensive handbook will be an indispensable research tool for chemists. Handbook of Palladium Catalysed Organic Reactions provides a synoptic description of the main types of reactions which are catalyzed by Palladium and the mechanism which causes these reactions. Each reaction is presented in graphical form and classified according to the type of transformation involved.Other books covering the use of Palladium complexes as catalysts have been written, but the Handbook is the only to offer a synoptic view, showing the catalytic cycle of each reaction. This complete coverage provides the reader with a good understanding of the parameters involved. The tables included can be viewed from the point of view of the reagents, the product of the reaction, or the mechanism involved. The Handbook is a companion to the Database of Palladium Chemistry: Reactions andCatalytic Cycles, published on CD-ROM.

  • Progress in Ion Exchange

    Advances and Applications
    • 1 Edición
    • A Dyer + 2 más
    • Inglés
    This volume is a record of a conference, which was the fourth in a series held at NWEI, in Wrexham. It brought together scientists with interests in the broadly based subject of ion exchange, with the aim to cover aspects of its application as well as advances in the theory of ion exchange.

  • Mossbauer Spectroscopy

    Principles and Applications
    • 1 Edición
    • A. G. Maddock
    • Inglés
    Mossbauer spectroscopy has proved itself a versatile technique, finding applications in diverse areas of science and industry. Starting from physics and chemistry it spread into biochemistry, mineralogy, biochemistry, corrosion science, geochemistry and archaeology, with applications in industrial and scientific research. The author aims to help advanced university students, professionals and research workers who ask the question "what's in it for us?". After a concise account of experimental techniques, he emphasizes those applications in which there are few, if any, alternative ways of obtaining the same information about electron fields and the nuclei. He explains areas of industrial interest, including the important applications related to tin and iron on which there is much activity in research and development, and interprets the extension of Mossbauer techniques to main group, transitional and other suitable elements. Attention is paid to factors which may lead to misinterpretation of spectra and another chapter covers the complexities of interpreting emission spectra.

  • Studies in Natural Products Chemistry

    Indices Part A
    • 1 Edición
    • Volumen 31
    • Atta-ur- Rahman
    • Inglés
    The Studies in Natural Products Chemistry series is a valuable source for researchers and engineers working in natural product and medicinal chemistry. Studies in Natural Products Chemistry Volume 31: Indices Part A encompasses the contents of the previous 30 volumes published in the Studies in Natural Products series. To make searching easier, the book is divided into four separate indices: Cumulative General Subject Index; Cumulative Organic Synthesis Index; Cumulative Pharmacological Activity Index and; Cumulative Biological Source Index, allowing readers to easily locate required information. This volume and the series remain an important addition to any library.

  • Environmental Immunochemical Analysis Detection of Pesticides and Other Chemicals

    A User's Guide
    • 1 Edición
    • Shirley J. Gee + 2 más
    • Inglés
    This book is a tutorial designed to instruct the reader in use and application of immunochemical methods of analysis for environmental contaminants. A brief introduction describes basic principles and the advantages and disadvantages of the technology, and gives a listing of references which supply more detail. Preparation of the laboratory for use of this technology and the general scientific considerations prior to using the technology are discussed. Detailed step-wise procedures are given for analysis of selected analytes, triazine herbicides, carbaryl, paraquat, and p-nitrophenols, etc. In addition to the specific immunoassay methods, a series of support techniques necessary to perform immunochemical methods are described. This book provides specific instruction for certain analytes, but also serves to familiarize the novice reader with many generic concepts needed to successfully utilize immunochemistry technology including: applications, sampling, sample preparation, extraction, cleanup, quality assurance, methods development and optimization, data handling and troubleshooting. It is not necessary for the reader to actually perform the immunoassays given in this user's guide to obtain familiarity with these concepts. The guide is written so that the information presented can be applied to other immunoassays not given here. Thus, the strength of the guide is its universal applicability to immunoassay methods.

  • Advances in Heterocyclic Chemistry

    • 1 Edición
    • Volumen 67
    • Inglés
    Established in 1960, Advances in Heterocyclic Chemistry is the definitive serial in the area--one of great importance to organic chemists, polymer chemists, and many biological scientists. Written by established authorities in the field, the comprehensive reviews combine descriptive chemistry and mechanistic insight and yield an understanding of how the chemistry drives the properties.

  • Advances in Molecular Similarity

    • 1 Edición
    • Volumen 1
    • R. Carbo-Dorca + 1 más
    • Inglés
    The aim of this text is to provide reviews and monographs on topics involving molecular similarity, ranging from the fundamental physical properties underlying molecular behaviour to applications in industrially important fields such as pharmaceutical drug design and molecular engineering. The editors hope that this series will encourage new ideas and approaches, help to systematize the rapidly accumulating new chemical information, and make chemistry better understood and better applied.

  • Advances in Dendritic Macromolecules

    • 1 Edición
    • Volumen 3
    • G.R. Newkome
    • Inglés
    The series Advances in Dendritic Macromolecules aims to cover the synthesis and supramolecular chemistry of dendritic or cascade super-molecules as well as their less perfect hyperbranched cousins.In Volume 3, Chapter 1 describes the synthesis and characterization of dendrimers and hyperbranched polyesters, both based on 2,2-bis(hydroxymethy... acid, as the AB2-monomer. Chapter 2, discusses the advantages and drawbacks of dendritic molecular architectures necessary to create polymeric organic magnetic materials. In Chapter 3, Balzani and colleagues delineate their contributions to the field of polynuclear transition metal complexes in the design and construction of dendritic nanostructures; these luminesence and redox-active complexes suggest their role as photochemical molecular devices operating by photoinduced energy and electron transfer processes. Chapter 4, reviews the overall progress on redox-active dendrimers, especially as redox catalysts, organic conductors, modified electrodes, and models for electron transfer proteins. Chapter 5, summarizes the pioneering research in organometallic dendritic macromolecules and then delineates the redox properties of a series of silicon-based ferrocenyl-containin... dendrimers.

  • Alkaloids: Chemical and Biological Perspectives

    • 1 Edición
    • Volumen 11
    • S.W. Pelletier
    • Inglés
    Volume 11 of this series presents five timely reviews on current research on alkaloids. Chapter 1 by Paul L. Schiff, Jr. is a monumental survey of research that has been carried out over the past decade on the Thalictrum alkaloids. Forty-six new alkaloids are described from fifteen species of the genus Thalictrum, as well as 116 alkaloids of known structure from thirty-six species and subspecies of the genus. The chapter includes discussions of isolation and structure elucidation, analysis, biosynthesis, cell culture, and pharmacology. Also featured are inclusive compilations of botanical sources, alkaloids by alkaloid types, and calculated molecular weights of the Thalictrum alkaloids.Chapter 2 by Giovanni Appendino provides a fascinating treatment of Taxine, a collective name referring to a mixture of diterpenoid alkaloids from the yew tree (genus: Taxus). Taxine is responsible for the toxic properties of the yew tree that has been documented in historical and fictional literature, from Julius Caesar to Shakespeare, and from Agatha Christie to T.S. Eliot. The chapter treats the history, isolation techniques, structure elucidation, chemistry, and pharmacology of Taxine.Chapter 3 by Mary D. Menachery surveys the alkaloids of South American Menispermaceae (moonseed family). Many different structural types are included in this family. The alkaloid-bearing plants are woody-vines, shrubs, or small trees. Several of these species possess potent curare activity. The chemistry as well as pharmacology of these alkaloids is summarized.Chapter 4 by Russell J. Molyneux, Robert J. Nash, and Naoki Asano treats the chemistry and biological activity of the calystegines and related nortropane alkaloids. These polyhydroxylated bicyclic alkaloids represent another class of compounds that inhibit glycosidases, producing profound effects in biological systems by disrupting the essential cellular function of glycoprotein processing.Chapter 5, a related chapter by Robert J. Nash, Naoki Asano, and Alison A. Watson, reviews polyhydroxylated alkaloids that inhibit glycosidases. Topics covered include distribution, ecological significance and toxicity, isolation, synthesis, and biosynthesis.

  • Robustness of Analytical Chemical Methods and Pharmaceutical Technological Products

    • 1 Edición
    • Volumen 19
    • M.M.W.B. Hendriks + 2 más
    • Inglés
    In analytical chemistry and pharmaceutical technology attention is increasingly focussed on improving the quality of methods and products. This book aims at fostering the awareness of the potential of existing mathematical and statistical methods to improve this quality. It provides procedures and ideas on how to make a product or a method less sensitive to small variations in influencing factors. Major issues covered are robustness and stability improvement and ruggedness testing. General strategies and a theoretical introduction to these methods are described, and thorough overviews of methods used in both application areas and descriptions of practical applications are given.Features of this book:• Gives a good overview of mathematical and statistical methods used in two application areas, i.e. pharmaceutical technology and analytical chemistry• Illustrates the different approaches available to attain robustness• Gives ideas on how to use methods in practical situations.The book is intended for those who develop and optimize, and are responsible for the overall quality of, analytical methods and pharmaceutical technological products and procedures.

  • Annual Reports on NMR Spectroscopy

    • 1 Edición
    • Volumen 33
    • Inglés
    In comparison with other methods currently available for investigating the structure and dynamics of molecular NMR is egregious. The widespread applicability of the series of NMR techniques now commonly available is exemplified in the topics appearing in Annual Reports on NMR Spectroscopy Volume 33.

  • NMR Spectroscopy and its Application to Biomedical Research

    • 1 Edición
    • S.K. Sarkar
    • Inglés
    NMR has become the most diverse spectroscopic tool available to date in biomedical research. It is now routinely used to study biomolecular structure and dynamics particularly as a result of recent developments of a cascade of highly sophisticated multidimensional NMR pulse sequences, and of advances in genetic engineering to produce biomolecules, uniformly or selectively enriched with 13C, 15N and 2H.Features of this book:• Provides an up-to-date treatment of NMR techniques and their application to problems of biomedical interest• Most refined multidimensional pulse sequences including the basic aspects are covered by leading NMR spectroscopists.The book will be useful to NMR spectroscopists, biochemists, and to molecular biologists interested in the use of NMR techniques for solving biological problems.

  • Annual Reports in Medicinal Chemistry

    • 1 Edición
    • Volumen 31
    • James A. Bristol
    • Inglés
    Advances in Medicinal Chemistry provides timely and critical reviews of important topics in medicinal chemistry together with an emphasis on emerging topics in the biological sciences, which are expected to provide the basis for entirely new future therapies.

  • Vibrational Intensities

    • 1 Edición
    • Volumen 22
    • B.S. Galabov + 1 más
    • Inglés
    The current volume is a single topic volume on the vibrational intensities in the infrared and Raman spectra. Vibrational intensities in infrared and Raman spectra are important physical quantities that are directly related to the distribution and fluctuations of electric charges in the molecule. These spectral parameters can be experimentally determined with good accuracy for many molecules. Additionally, infrared and Raman intensities are presently estimated theoretically by advanced analytical derivative ab initio molecular orbital methods. These fundamental molecular quantities are being used in structural, and other studies, on a limited basis.Features of this book- Presents in a systematic way, the theoretical approaches that are used in analyzing and predicting vibrational intensities- The formalisms developed are illustrated with detailed numerical examples- Most of the theoretical models described were obtained and then applied to chosen molecules- A consistent notation is used in presenting the different theoretical approaches, thus eliminating another barrier in understanding some methods, especially those developed by the Russian spectroscopic school.

  • Molecular Electrostatic Potentials

    Concepts and Applications
    • 1 Edición
    • Volumen 3
    • J.S. Murray + 1 más
    • Inglés
    Over the past 25 years, the molecular electrostatic potential has become firmly established as an effective guide to molecular interactions. With the recent advances in computational technology, it is currently being applied to a variety of important chemical and biological systems. Its range of applicability has expanded from primarily a focus on sites for electrophilic and nucleophilic attack to now include solvent effects, studies of zeolite, molecular cluster and crystal behavior, and the correlation and prediction of a wide range of macroscopic properties. Moreover, the increasing prominence of density functional theory has raised the molecular electrostatic potential to a new stature on a more fundamental conceptual level. It is rigorously defined in terms of the electron density, and has very interesting topological characteristics since it explicitly reflects opposing contributions from the nuclei and the electrons.This volume opens with a survey chapter by one of the original pioneers of the use of the electrostatic potential in studies of chemical reactivity, Jacopo Tomasi. Though the flow of the succeeding chapters is not stringently defined, the overall trend is that the emphasis changes gradually from methodology to applications. Chapters discussing more theoretical topics are placed near the end. Readers will find the wide variety of topics provided by an international group of authors both convincing and useful.

  • Principles of Asymmetric Synthesis

    • 1 Edición
    • Volumen 14
    • R.E. Gawley + 1 más
    • Inglés
    The world is chiral. Most of the molecules in it are chiral, and asymmetric synthesis is an important means by which enantiopure chiral molecules may be obtained for study and sale. Using examples from the literature of asymmetric synthesis (more than 1300 references), the aim of this book is to present a detailed analysis of the factors that govern stereoselectivity in organic reactions. It is important to note that the references were each individually checked by the authors to verify relevance to the topics under discussion. The study of stereoselectivity has evolved from issues of diastereoselectivity... through auxiliary-based methods for the synthesis of enantiomerically pure compounds (diastereoselectivit... followed by separation and auxiliary cleavage), to asymmetric catalysis. In the latter instance, enantiomers (not diastereomers) are the products, and highly selective reactions and modern purification techniques allow preparation - in a single step - of chiral substances in 99% ee for many reaction types. After an explanation of the basic physical-organic principles of stereoselectivity, the authors provide a detailed, annotated glossary of stereochemical terms. A chapter on "Analytical Methods" provides a critical overview of the most common methods for analysis of stereoisomers. The authors then follow the 'tried-and-true' format of grouping the material by reaction type. Thus, there are four chapters on carbon-carbon bond forming reactions (enolate alkylations, organometal additions to carbonyls, aldol and Michael reactions, and cycloadditions and rearrangements), one chapter on reductions and hydroborations (carbon-hydrogen bond forming reactions), and one on oxidations (carbon-oxygen and carbon-nitrogen bond forming reactions). Leading references are provided to natural product synthesis that have been accomplished using a given reaction as a key step. In addition to tables of examples that show high selectivity, a transition state analysis is presented to explain - to the current level of understanding - the stereoselectivity of each reaction. In one case (Cram's rule) the evolution of the current theory is detailed from its first tentative (1952) postulate to the current Felkin-Anh-Heathcock formalism. For other reactions, only the currently accepted rationale is presented. Examination of these rationales also exposes the weaknesses of current theories, in that they cannot always explain the experimental observations. These shortcomings provide a challenge for future mechanistic investigations.

  • The Language of Shape

    The Role of Curvature in Condensed Matter: Physics, Chemistry and Biology
    • 1 Edición
    • S. Hyde + 6 más
    • Inglés
    This book develops the thesis that structure and function in a variety of condensed systems - from the atomic assemblies in inorganic frameworks and organic molecules, through molecular self-assemblies to proteins - can be unified when curvature and surface geometry are taken together with molecular shape and forces. An astonishing variety of synthetic and biological assemblies can be accurately modelled and understood in terms of hyperbolic surfaces, whose richness and beauty are only now being revealed by applied mathematicians, physicists, chemists and crystallographers. These surfaces, often close to periodic minimal surfaces, weave and twist through space, carving out interconnected labyrinths whose range of topologies and symmetries challenge the imaginative powers.The book offers an overview of these structures and structural transformations, convincingly demonstrating their ubiquity in covalent frameworks from zeolites used for cracking oil and pollution control to enzymes and structural proteins, thermotropic and lyotropic bicontinuous mesophases formed by surfactants, detergents and lipids, synthetic block copolymer and protein networks, as well as biological cell assemblies, from muscles to membranes in prokaryotic and eukaryotic cells. The relation between structure and function is analysed in terms of the previously neglected hidden variables of curvature and topology. Thus, the catalytic activity of zeolites and enzymes, the superior material properties of interpenetrating networks in microstructured polymer composites, the transport requirements in cells, the transmission of nerve signals and the folding of DNA can be more easily understood in the light of this.The text is liberally sprinkled with figures and colour plates, making it accessible to both the beginning graduate student and researchers in condensed matter physics and chemistry, mineralogists, crystallographers and biologists.

  • Fundamentals of Inorganic Membrane Science and Technology

    • 1 Edición
    • Volumen 4
    • A.J. Burggraaf + 1 más
    • Inglés
    Inorganic membrane science and technology is a new field of membrane separation technology which until recently was dominated by the earlier field of polymer membranes. Currently the subject is undergoing rapid development and innovation.The present book describes the fundamental principles of both synthesis of inorganic membranes and membrane supports and also the associated phenomena of transport and separation in a semi-quantitative form.Features of this book:- Examples are given which illustrate the state-of-the-art in the synthesis of membranes with controlled properties- Future possibilities and limitations are discussed- The reader is provided with references to more extended treatments in the literature- Potential areas for future innovation are indicated.By combining aspects of both the science and technology of inorganic membranes this book serves as a useful source of information for scientists and engineers working in this field. It also provides some observations of important investigators who have contributed to the development of this subject.

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