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Books > Science & Mathematics > Chemistry > Physical chemistry > Quantum & theoretical chemistry

Mathematical Concepts in Organic Chemistry (Paperback, Softcover reprint of the original 1st ed. 1986): Ivan Gutman, Oskar E... Mathematical Concepts in Organic Chemistry (Paperback, Softcover reprint of the original 1st ed. 1986)
Ivan Gutman, Oskar E Polansky
R1,398 Discovery Miles 13 980 Ships in 18 - 22 working days

The present book is an attempt to outline some, certainly not all, mathematical aspects of modern organic chemistry. We have focused our attention on topological, graph-theoretical and group-theoretical features of organic chemistry, Parts A, B and C. The book is directed to all those chemists who use, or who intend to use mathe matics in their work, and especially to graduate students. The level of our exposition is adjusted to the mathematical background of graduate students of chemistry and only some knowledge of elementary algebra and calculus is required from the readers of the book. Some less well-known. but still elementary mathematical facts are collected in Appendices 1-4. This, however, does not mean that the mathematical rigor and numerous tedious, but necessary technical details have been avoided. The authors' intention was to show the reader not only how the results of mathematical chemistry look, but also how they can be obtained. In accordance with this, Part 0 of the book contains a few selected advanced topics which should give the reader the flavour of the contemporary research in mathe matical organic chemistry. One of the authors (I.G.) was an Alexander von Humboldt fellow in 1985 when the main part of the book was written. He gratefully acknowledges the financial support of the Alexander von Humboldt Foundation which enabled his stay at the Max-Planck-Institut fUr Strahlenchemie in M iilheim and the writing of this book."

Magnetism and the Electronic Structure of Crystals (Paperback, Softcover reprint of the original 1st ed. 1992): Vladimir A.... Magnetism and the Electronic Structure of Crystals (Paperback, Softcover reprint of the original 1st ed. 1992)
Vladimir A. Gubanov, Alexandr I. Liechtenstein, Andrei V. Postnikov
R2,624 Discovery Miles 26 240 Ships in 18 - 22 working days

The quantum theory of magnetism is a well-developed part of contemporary solid-state physics. The basic concepts of this theory can be used to describe such important effects as ferromagnetic ordering oflocalized magnetic moments in crystals and ferromagnetism of metals produced by essentially delocalized electrons, as well as various types of mutual orientation of atomic magnetic moments in solids possessing different crystal lattices and compositions. In recent years, the spin-fluctuational approach has been developed, which can overcome some contradictions between "localized" and "itinerant" models in the quantum mechanics of magnetic crystals. These are only some of the principal achievements of quantum magnetic theory. Almost all of the known magnetic properties of solids can be qualitat ively explained on the basis of its concepts. Further developments should open up the possibility of reliable quantitative description of magnetic properties of solids. Unfortunately, such calculations based on model concepts appear to be very complicated and, quite often, not definite enough. The rather small number of parameters of qualitative models are usually not able to take into account the very different types of magnetic interactions that appear in crystals. Further development of magnetic theory requires quantitative information on electronic wave function in the crystal considered. This can be proved by electronic band structure and cluster calculations. In many cases the latter can be a starting point for quantitative calculations of parameters used in magnetic theory."

Second Quantized Approach to Quantum Chemistry - An Elementary Introduction (Paperback, Softcover reprint of the original 1st... Second Quantized Approach to Quantum Chemistry - An Elementary Introduction (Paperback, Softcover reprint of the original 1st ed. 1989)
P eter R Surj an
R2,175 Discovery Miles 21 750 Ships in 18 - 22 working days

The aim of this book is to give a simple, short, and elementary introduction to the second quantized formalism as applied to a many-electron system. It is intended for those, mainly chemists, who are familiar with traditional quantum chemistry but have not yet become acquainted with second quantization. The treatment is, in part, based on a series of seminars held by the author on the subject. It has been realized that many quantum chemists either interested in theory or in applications, being educated as chemi ts and not as physicists, have never devoted themselves to taking a course on the second quantized approach. Most available textbooks on this topic are not very easy to follow for those who are not trained in theory, or they are not detailed enough to offer a comprehensive treatment. At the same time there are several papers in quantum chemical literature which take advantage of using second quantization, and it would be worthwhile if those papers were accessible for a wider reading public. For this reason, it is intended in this survey to review the basic formalism of second quantization, and to treat some selected chapters of quantum chemistry in this language. Most derivations will be carried out in a detailed manner, so the reader need not accept gaps to understand the result.

Chemistry, Quantum Mechanics and Reductionism - Perspectives in Theoretical Chemistry (Paperback, 2nd ed. 1983. Softcover... Chemistry, Quantum Mechanics and Reductionism - Perspectives in Theoretical Chemistry (Paperback, 2nd ed. 1983. Softcover reprint of the original 2nd ed. 1983)
Hans Primas
R2,151 Discovery Miles 21 510 Ships in 18 - 22 working days
Solid-State NMR IV Methods and Applications of Solid-State NMR - Methods and Applications of Solid-State NMR (Paperback,... Solid-State NMR IV Methods and Applications of Solid-State NMR - Methods and Applications of Solid-State NMR (Paperback, Softcover reprint of the original 1st ed. 1994)
B. Blumich; Contributions by A.E. Bennett, B. F. Chmelka, H. Eckert, R.G. Griffin, …
R3,990 Discovery Miles 39 900 Ships in 18 - 22 working days

Solid-State NMR is a branch of Nuclear Magnetic Resonance which is presently experiencing a phase of strongly increasing popularity. The most striking evidence is the large number of contributions from Solid-State Resonance at NMR meetings, approaching that ofliquid state resonance. Important progress can be observed in the areas of methodological developments and applications to organic and inorganic matter. One volume devoted to more or less one of each of these areas has been published in the preceding three issues. This volume can be considered an addendum to this series. Selected methods and applications of Solid-State NMR are featured in three chapters. The first one treats the recoupling of dipolar interactions in solids, which are averaged by fast sample rotation. Following an introduction to effective Hamiltonians and Floquet theory, different types of experiment such as rotary resonance, dipolar chemical shift correlation spectroscopy, rotational resonance and multipulse recoupling are treated in the powerful Floquet formalism. In the second chapter, the different approaches to line narrowing of quadrupolar nuclei are reviewed in a. consistent formulation of double resonance (DaR) and dynamic angle spinning (DAS). Practical aspects of probe design are considered as well as advanced 2D experiments, sensitivity enhancement techniques, and spinning sideband manipulations. The use of such techniques dramatically increases the number of nuclei which can be probed in high resolution NMR spectroscopy. The final chapter describes new experimental approaches and results of structural studies of noncrystalline solids."

Recent Progress in Coupled Cluster Methods - Theory and Applications (Paperback, 2010 ed.): Petr Carsky, Josef Paldus, Jiri... Recent Progress in Coupled Cluster Methods - Theory and Applications (Paperback, 2010 ed.)
Petr Carsky, Josef Paldus, Jiri Pittner
R7,738 Discovery Miles 77 380 Ships in 18 - 22 working days

I feel very honored that I have been asked to write a Foreword to this book. The subject of the book - "Coupled cluster theory" - has been around for about half a century. The basic theory and explicit equations for closed-shell ground states were formulated before 1970. At the beginning of the seventies the rst ab initio calcu- tion were carried out. At that time speed and memory of computers were very limited compared to today's standards. Moreover, the size of one-electron bases employed was small, so that it was only possible to achieve an orientation in methodical aspects rather than to generate new signi cant results. Extensive use of the coupled-cluster method started at the beginning of the eighties. With the help of more powerful computers the results of coupled-cluster approaches started to yield more and more interesting results of relevance to the interpretation of experimental data. New ideas in methodology kept appearing and computer codes became more and more ef cient. This exciting situation continues to this very day. Remarkably enough, even the - quired equations can now be generated by a computer with the help of symbolic languages. The size of this monograph and the rich variety of articles it contains attests to the usefulness and viability of the couple-cluster formalism for the h- dling of many-electron correlation effects. This represents a vivid testimony of a tremendous work that has been accomplished in coupled-cluster methodology and its exploitation.

Solid-State NMR I Methods - Methods (Paperback, Softcover reprint of the original 1st ed. 1994): B. Blumich Solid-State NMR I Methods - Methods (Paperback, Softcover reprint of the original 1st ed. 1994)
B. Blumich; Contributions by B. Blumich, P. Blumler, B. F. Chmelka, G Fleischer, …
R2,652 Discovery Miles 26 520 Ships in 18 - 22 working days

1. A.-R. Grimmer, Berlin, FRG; B. Bl}mich, Aachen, FRG: Introduction to Solid-State NMR 2. F. Laupretre, Paris, France: High-Resolution 13C NMRInvestigations of Local Dynamics in Bulk Polymers at Temperatures Below andAbove the Glass-Transition Temperature 3. D. Raftery, Philadelphia, PA;B.F. Chmelka, Santa Barbara, CA: Xenon NMR Spectroscopy 4. G. Fleischer, Leipzig, FRG; F. Fujara, Mainz, FRG: NMR as a Generalized Incoherent Scattering Experiment 5. P. Bl}mler, B. Bl}mich, Mainz, FRG: NMR Imaging of Solids

High Pressure Molecular Science - Proceedings of the NATO Advanced Study Institute, Il Ciocco, Italy, September 27-October 11,... High Pressure Molecular Science - Proceedings of the NATO Advanced Study Institute, Il Ciocco, Italy, September 27-October 11, 1998 (Hardcover)
Roland Winter, Jiri Jonas
R3,435 Discovery Miles 34 350 Ships in 18 - 22 working days

For chemists, biochemists, physicists and materials scientists, pressure as an experimental variable represents a tool that provides unique information about the microscopic properties of the materials being studied. In addition to its use as a research tool for investigating the energetics, structure, dynamics and kinetics of molecular transformations of materials, pressure is also being used to modify the properties of materials to preserve or improve their properties. The contributions collected here cover the main areas of high pressure research, including applications in materials science, condensed matter physics, chemistry and biochemistry. In addition, some papers offer more specialised aspects of high pressure studies. The book makes clear the impressive range of fundamental and applied problems that can be studied by high pressure techniques and also points towards a major growth of high pressure science and technology in the new millennium.

Biological Functions for Information and Communication Technologies - Theory and Inspiration (Paperback, 2011 ed.): Hidefumi... Biological Functions for Information and Communication Technologies - Theory and Inspiration (Paperback, 2011 ed.)
Hidefumi Sawai
R2,638 Discovery Miles 26 380 Ships in 18 - 22 working days

By incorporating biologically-inspired functions into ICT, various types of new-generation information and communication systems can be created. Just some example of areas already benefiting from such design inspiration are network architectures, information processing, molecular communication, and complex network modeling for solving real world-problems. This book provides the theoretical basis for understanding these developments and explains their practical applications. Highlighted inserts appears throughout to help readers to understand the very latest topics in these emerging research fields. The book ends with a more philosophical discussion on how new ICT solutions can be found by looking at analogous systems in biology. This new way of thinking may help researchers and practitioners to apply innovative ideas in developing next-generation technologies.

A Pictorial Approach to Molecular Bonding and Vibrations (Paperback, 2nd ed. 1997. Softcover reprint of the original 2nd ed.... A Pictorial Approach to Molecular Bonding and Vibrations (Paperback, 2nd ed. 1997. Softcover reprint of the original 2nd ed. 1997)
John G. Verkade
R1,432 Discovery Miles 14 320 Ships in 18 - 22 working days

Understanding molecular orbitals (MOs) is a prerequisite to appreciating many physical and chemical properties of matter. This extensively revised second edition of A Pictorial Approach to Molecular Bonding presents the author's innovative approach to MOs, generating them pictorially for a wide variety of molecular geometries. A major enhancement to the second edition is the PC- and Macintosh-compatible Nodegame software, which is coordinated with the text and aids in pictorially teaching molecular orbital theory using generator orbitals.

Fundamentals of Continuum Mechanics of Soils (Paperback, Softcover reprint of the original 1st ed. 1991): Yehuda Klausner Fundamentals of Continuum Mechanics of Soils (Paperback, Softcover reprint of the original 1st ed. 1991)
Yehuda Klausner
R2,772 Discovery Miles 27 720 Ships in 18 - 22 working days

Fundamentals of Continuum Mechanics of Soils provides a long-needed general scheme for the study of the important yet problematic material of soil. It closes the gap between two disciplines, soil mechanics and con- tinuum mechanics, showing that the familiar concepts of soil mechanics evolve directly from continuum mechanics. It confirms concepts such as pore pressures, cohesion and dependence of the shear stress on consolidation, and rejects the view that continuum mechanics cannot be applied to a material such as soil. The general concepts of continuum mechanics, field equations and constitutive equations are discussed. It is shown how the theory of mixtures evolves from these equations and how, along with energetics and irrevers- ible thermodynamics, it can be applied to soils. The discussion also sheds light on some aspects of mechanics of materials, especially compressible materials. Examples are the introduction of the Hencky measure of strain, the requirement of dual constitutive equations, and the dependence of the spent internal energy on the stored internal energy. Researchers in engineering mechanics and material sciences may find that the results of experiments on soils can be generalized and extended to other materials. The book is a reference text for students familiar with the fundamentals of mechanics, for scholars of soil engineering, and for soil scientists. It is also suitable as an advanced undergraduate course in soil mechanics.

Dissipative Structures and Chaos (Paperback, Softcover reprint of the original 1st ed. 1998): Hazime Mori Dissipative Structures and Chaos (Paperback, Softcover reprint of the original 1st ed. 1998)
Hazime Mori; Translated by G.C. Paquette; Yoshiki Kuramoto
R1,414 Discovery Miles 14 140 Ships in 18 - 22 working days

This book consists of two parts, the first dealing with dissipative structures and the second with the structure and physics of chaos. The first part was written by Y. Kuramoto and the second part by H. Mori. Throughout the book, emphasis is laid on fundamental concepts and methods rather than applications, which are too numerous to be treated here. Typical physical examples, however, including nonlinear forced oscilla tors, chemical reactions with diffusion, and Benard convection in horizontal fluid layers, are discussed explicitly. Our consideration of dissipative structures is based on a phenomenolog ical reduction theory in which universal aspects of the phenomena under consideration are emphasized, while the theory of chaos is developed to treat transport phenomena, such as the mixing and diffusion of chaotic orbits, from the viewpoint of the geometrical phase space structure of chaos. The title of the original, Japanese version of the book is Sanitsu Kozo to Kaosu (Dissipative Structures and Chaos). It is part of the Iwanami Koza Gendai no Butsurigaku (Iwanami Series on Modern Physics). The first Japanese edition was published in March 1994 and the second in August 1997. We are pleased that this book has been translated into English and that it can now have an audience outside of Japan. We would like to express our gratitude to Glenn Paquette for his English translation, which has made this book more understandable than the original in many respects."

The Concept of the Chemical Bond - Theoretical Models of Chemical Bonding Part 2 (Paperback, Softcover reprint of the original... The Concept of the Chemical Bond - Theoretical Models of Chemical Bonding Part 2 (Paperback, Softcover reprint of the original 1st ed. 1990)
Zvonimir B. Maksic; Assisted by Dieter Cremer, Clyde Edmiston, Peter Fulde, M.S. Gopinathan, …
R4,130 Discovery Miles 41 300 Ships in 18 - 22 working days

The state-of-the-art in contemporary theoretical chemistry is presented in this 4-volume set with numerous contributions from the most highly regarded experts in their field. It provides a concise introduction and critical evaluation of theoretical approaches in relation to experimental evidence.

Density Functional Methods in Chemistry (Paperback, Softcover reprint of the original 1st ed. 1991): Jan K. Labanowski, Jan W.... Density Functional Methods in Chemistry (Paperback, Softcover reprint of the original 1st ed. 1991)
Jan K. Labanowski, Jan W. Andzelm
R1,452 Discovery Miles 14 520 Ships in 18 - 22 working days

Predicting molecular structure and energy and explaining the nature of bonding are central goals in quantum chemistry. With this book, the editors assert that the density functional (DF) method satisfies these goals and has come into its own as an advanced method of computational chemistry. The wealth of applications presented in the book, ranging from solid state sys tems and polymers to organic and organo-metallic molecules, metallic clus ters, and biological complexes, prove that DF is becoming a widely used computational tool in chemistry. Progress in the methodology and its imple mentation documented by the contributions in this book demonstrate that DF calculations are both accurate and efficient. In fact, the results of DF calculations may pleasantly surprise many chem ists. Even the simplest approximation of DF, the local spin density method (LSD), yields molecular structures typical of ab initio correlated methods. The next level of theory, the nonlocal spin density method, predicts the energies of molecular processes within a few kcallmol or less. Like the Hartree-Fock (HF) and configuration interaction (CI) methods, the DF method is based only on fundamental physical constants. Therefore, it does not require semiempirical parameters and can be applied to any molecular system and to metallic phases. However, DF's greatest advantage is that it can be applied to much larger systems than those approachable by tradition al ab initio methods, especially when compared with correlated ab initio methods."

Solid-State NMR III Organic Matter - Organic Matter (Paperback, Softcover reprint of the original 1st ed. 1994): Bernhard... Solid-State NMR III Organic Matter - Organic Matter (Paperback, Softcover reprint of the original 1st ed. 1994)
Bernhard Blumich; Contributions by H W Beckham, F Engelke, G L Hoatson, W.E.J.R. Maas, …
R3,993 Discovery Miles 39 930 Ships in 18 - 22 working days

Solid-State NMR is a branch of Nuclear Magnetic Resonance which is presently experiencing a phase of strongly increasing popularity. The most striking evidence is the large number of contributions from Solid-State Resonance atNMR meetings, approaching that ofliquid state resonance. Important progress can be observed in three areas: Methodological developments, applications to inorganic matter, and applications to organic matter. These developments are intented to be captured in three volumes in this series, each of them being devoted to more or less one of these areas. The present volume on Solid-State NMR III is devoted mainly to organic matter. The recent developments of deuteron NMR and their applications are reviewed in the first chapter. Crosspolarization, MAS, and dynamic angle spinning are being explored for enhancement of information and sensitivity. In addition to the analysis of classical relaxation times and modern 2D spectra, detailed dynamic information becomes accessible from investigations of the relaxation time anisotropies. The second chapter examines cross-polarization in static and rotating solids under conditions of spin diffusion and thermal motion. The underlying dipole-dipole interaction is further exploited by the techniques described in the third chapter for studies of polymer-polymer miscibility. Short range techniques are discriminated from long-range techniques based on spin diffusion. The use ofthese techniques is illustrated by a case study ofPMMAJPVF blends. The last chapter addresses novel z methods and applications of two-dimensional exchange NMR for investigations of relative molecular orientations, polymer morphology, molecular dynamics, and macroscopic molecular order."

Soft Computing Approaches in Chemistry (Paperback, Softcover reprint of the original 1st ed. 2003): Hugh M. Cartwright, Les M.... Soft Computing Approaches in Chemistry (Paperback, Softcover reprint of the original 1st ed. 2003)
Hugh M. Cartwright, Les M. Sztandera
R4,021 Discovery Miles 40 210 Ships in 18 - 22 working days

The contributions to this book cover a wide range of applications of Soft Computing to the chemical domain. The early roots of Soft Computing can be traced back to Lotfi Zadeh's work on soft data analysis [1] published in 1981. 'Soft Computing' itself became fully established about 10 years later, when the Berkeley Initiative in Soft Computing (SISC), an industrial liaison program, was put in place at the University of California - Berkeley. Soft Computing applications are characterized by their ability to: * approximate many different kinds of real-world systems; * tolerate imprecision, partial truth, and uncertainty; and * learn from their environment. Such characteristics commonly lead to a better ability to match reality than other approaches can provide, generating solutions of low cost, high robustness, and tractability. Zadeh has argued that soft computing provides a solid foundation for the conception, design, and application of intelligent systems employing its methodologies symbiotically rather than in isolation. There exists an implicit commitment to take advantage of the fusion of the various methodologies, since such a fusion can lead to combinations that may provide performance well beyond that offered by any single technique.

Advances in the Theory of Atomic and Molecular Systems - Conceptual and Computational Advances in Quantum Chemistry (Paperback,... Advances in the Theory of Atomic and Molecular Systems - Conceptual and Computational Advances in Quantum Chemistry (Paperback, 2009 ed.)
Piotr Piecuch, Jean Maruani, Gerardo Delgado-Barrio, Stephen Wilson
R5,189 Discovery Miles 51 890 Ships in 18 - 22 working days

Advances in the Theory of Atomic and Molecular Systems, is a collection of contributions presenting recent theoretical and computational developments that provide new insights into the structure, properties, and behavior of a variety of atomic and molecular systems. This volume (subtitled: Conceptual and Computational Advances in Quantum Chemistry) focuses on electronic structure theory and its foundations.

This volume is an invaluable resource for faculty, graduate students, and researchers interested in theoretical and computational chemistry and physics, physical chemistry and chemical physics, molecular spectroscopy, and related areas of science and engineering.

Multiscale and Multiphysics Computational Frameworks for Nano- and Bio-Systems (Paperback, 2011 ed.): Hyungjun Kim Multiscale and Multiphysics Computational Frameworks for Nano- and Bio-Systems (Paperback, 2011 ed.)
Hyungjun Kim
R2,627 Discovery Miles 26 270 Ships in 18 - 22 working days

This volume develops multiscale and multiphysics simulation methods to understand nano- and bio-systems by overcoming the limitations of time- and length-scales. Here the key issue is to extend current computational simulation methods to be useful for providing microscopic understanding of complex experimental systems. This thesis discusses the multiscale simulation approaches in nanoscale metal-insulator-metal junction, molecular memory, ionic transport in zeolite systems, dynamics of biomolecules such as lipids, and model lung system. Based on the cases discussed here, the author suggests various systematic strategies to overcome the limitations in time- and length-scales of the traditional monoscale approaches.

Ab Initio Calculations of Conformational Effects on 13C NMR Spectra of Amorphous Polymers (Paperback, Softcover reprint of the... Ab Initio Calculations of Conformational Effects on 13C NMR Spectra of Amorphous Polymers (Paperback, Softcover reprint of the original 1st ed. 1997)
J. Seelig; R. Born, H.W. Spiess
R3,970 Discovery Miles 39 700 Ships in 18 - 22 working days

In NMR, it is well-known that the chemical shift conveys structural informa tion, e. g. a carbonyl carbon will have a resonance frequency appreciably dif ferent from a methyl carbon, etc. The relation between structure and chemical shift is mostly established by empirical rules on the basis of prior experience. It is only quite recently that the advent of both comparatively cheap comput ing power and novel quantum chemistry approaches have provided feasible routes to calculate the chemical shift at the ab initio level for molecules of reasonable size. This raises the question whether application of these novel theoretical concepts offers a means of obtaining new structural information for the complex chain molecules one deals with in polymer science. Solid state 13C-NMR spectra of glassy amorphous polymers display broad, partially structured resonance regions that reflect the underlying disorder of the polymer chains. The chemical shift responds to the variation of the ge ometry of the chain, and the broad resonance regions can be explained by an inhomogeneous superposition of various chain geometries (and thus chem ical shifts). In this review, we present a novel approach to combine polymer chain statistical models, quantum chemistry and solid state NMR to pro vide quantitative information about the local chain geometry in amorphous polymers. The statistical model yields the relative occurrence of the various geometries, and quantum chemistry (together with a force field geometry op timization) establishes the link between geometry and chemical shift."

Basic Principles and Techniques of Molecular Quantum Mechanics (Paperback, Softcover reprint of the original 1st ed. 1989):... Basic Principles and Techniques of Molecular Quantum Mechanics (Paperback, Softcover reprint of the original 1st ed. 1989)
Ralph E Christoffersen
R1,515 Discovery Miles 15 150 Ships in 18 - 22 working days

New textbooks at all levels of chemistry appear with great regularity. Some fields like basic biochemistry, organic reaction mechanisms, and chemical thermody namics are well represented by many excellent texts, and new or revised editions are published sufficiently often to keep up with progress in research. However, some areas of chemistry, especially many of those taught at the graduate level, suffer from a real lack of up-to-date textbooks. The most serious needs occur in fields that are rapidly changing. Textbooks in these subjects usually have to be written by scientists actually involved in the research which is advancing the field. It is not often easy to persuade such individuals to set time aside to help spread the knowledge they have accumulated. Our goal, in this series, is to pinpoint areas of chemistry where recent progress has outpaced what is covered in any available textbooks, and then seek out and persuade experts in these fields to produce relatively concise but instructive introductions to their fields. These should serve the needs of one semester or one quarter graduate courses in chemistry and biochemistry. In some cases, the availability of texts in active research areas should help stimulate the creation of new courses. New York, New York CHARLES R. CANTOR Preface This book is not a traditional quantum chemistry textbook. Instead, it represents a concept that has evolved from teaching graduate courses in quantum chemistry over a number of years, and encountering students with diverse backgrounds."

Deuterium and Shift Calculation (Paperback, Softcover reprint of the original 1st ed. 1991): U Fleischer, W Kutzelnigg, H. -H... Deuterium and Shift Calculation (Paperback, Softcover reprint of the original 1st ed. 1991)
U Fleischer, W Kutzelnigg, H. -H Limbach, G.J. Martin, M.L. Martin, …
R2,647 Discovery Miles 26 470 Ships in 18 - 22 working days

In 1931 Vrey, Brickwedde, and Murphy discovered the hydrogen isotope deuterium. The isotopic enrichment was found to arise from the fact that the electrolysis oflight water is faster than of heavy water [1,2]. This success showed that although different isotopes of an element behave identically from a chemical standpoint the different isotopic masses nevertheless lead to both isotope effects on equilibrium as well as on rate constants of chemical reactions. Soon, ratios of equilibrium constants of isotopic reactions were called "equilibrium isotope effects" (EIE), ratios of isotopic rate constants "kinetic isotope effects" (KIE). Isotope effects have been found to be especially large for those elements which are directly involved in bond breaking and bond formation during the reaction studied [3]. Such effects are, therefore, referred to as "primary". Isotopic substitution in atomic sites which maintain all chemical bonds with their neighbors during the reaction of interest leads then only to smaller "secondary" isotope effects. Because of the unique mass relation between the different hydrogen isotopes hydrogen/deuterium isotope effects are particularly large and have attracted most attention. The largest contributions to these effects arise from changes in the vibrational frequencies of the reactants. The theory of equilibrium isotope effects has been founded by Vrey [4] and Bigeleisen [5,6] and has widely been accepted [3].

Structural Analysis of Point Defects in Solids - An Introduction to Multiple Magnetic Resonance Spectroscopy (Paperback,... Structural Analysis of Point Defects in Solids - An Introduction to Multiple Magnetic Resonance Spectroscopy (Paperback, Softcover reprint of the original 1st ed. 1992)
Johann-Martin Spaeth, J urgen R Niklas, Ralph H. Bartram
R1,431 Discovery Miles 14 310 Ships in 18 - 22 working days

Strutural Analysis of Point Defects in Solids introduces the principles and techniques of modern electron paramagnetic resonance (EPR) spectroscopy essentialfor applications to the determination of microscopic defect structures. Investigations of the microscopic and electronic structure, and also correlations with the magnetic propertiesof solids, require various multiple magnetic resonance methods, such as ENDOR and optically detected EPR or ENDOR. This book discusses experimental, technological and theoretical aspects of these techniques comprehensively, from a practical viewpoint, with many illustrative examples taken from semiconductors and other solids. The nonspecialist is informed about the potential of the different methods, while the researcher faced with the task of determining defect structures isprovided with the necessary tools, together with much information on computer-aided methods of data analysis and the principles of modern spectrometer design.

Molecular Organic Materials - From Molecules to Crystalline Solids (Paperback): Jordi Fraxedas Molecular Organic Materials - From Molecules to Crystalline Solids (Paperback)
Jordi Fraxedas
R1,310 Discovery Miles 13 100 Ships in 10 - 15 working days

The interest in molecular organic materials is tremendous, driven by the need to find new materials with desirable properties. This book aims to bring the materials and surface science communities together, integrating physics and chemistry in a non-technical manner, ensuring this fascinating field can be understood by a multi disciplinary audience. Starting with basic physical concepts and synthetic techniques, the book describes how molecules assemble into highly ordered structures as single crystals and thin films, with examples of characterization, morphology and properties. Special emphasis is placed on the importance of surfaces and interfaces. The final chapter gives a personal view on future possibilities in the field. Written for beginners and experienced chemists, physicists and material scientists, this will be a useful introduction to the field of molecular organic materials.

Fundamentals of Time-Dependent Density Functional Theory (Paperback, 2012): Miguel A. L Marques, Neepa T. Maitra, Fernando M.S.... Fundamentals of Time-Dependent Density Functional Theory (Paperback, 2012)
Miguel A. L Marques, Neepa T. Maitra, Fernando M.S. Nogueira, E.K.U. Gross, Angel Rubio
R3,186 Discovery Miles 31 860 Ships in 18 - 22 working days

There have been many significant advances in time-dependent density functional theory over recent years, both in enlightening the fundamental theoretical basis of the theory, as well as in computational algorithms and applications. This book, as successor to the highly successful volume Time-Dependent Density Functional Theory (Lect. Notes Phys. 706, 2006) brings together for the first time all recent developments in a systematic and coherent way.

First, a thorough pedagogical presentation of the fundamental theory is given, clarifying aspects of the original proofs and theorems, as well as presenting fresh developments that extend the theory into new realms-such as alternative proofs of the original Runge-Gross theorem, open quantum systems, and dispersion forces to name but a few. Next, all of the basic concepts are introduced sequentially and building in complexity, eventually reaching the level of open problems of interest. Contemporary applications of the theory are discussed, from real-time coupled-electron-ion dynamics, to excited-state dynamics and molecular transport. Last but not least, the authors introduce and review recent advances in computational implementation, including massively parallel architectures and graphical processing units. Special care has been taken in editing this volume as a multi-author textbook, following a coherent line of thought, and making all the relevant connections between chapters and concepts consistent throughout. As such it will prove to be the text of reference in this field, both for beginners as well as expert researchers and lecturers teaching advanced quantum mechanical methods to model complex physical systems, from molecules to nanostructures, from biocomplexes to surfaces, solids and liquids.

"From the reviews of LNP 706: "

"This is a well structured text, with a common set of notations and a single comprehensive and up-to-date list of references, rather than just a compilation of research articles. Because of its clear organization, the book can be used by novices (basic knowledge of ground-state DFT is assumed) and experienced users of TD-DFT, as well as developers in the field." (Anna I. Krylov, Journal of the American Chemical Society, Vol. 129 (21), 2007)

"This book is a treasure of knowledge and I highly recommend it. Although it is a compilation of chapters written by many different leading researchers involved in development and application of TDDFT, the contributors have taken great care to make sure the book is pedagogically sound and the chapters complement each other ...]. It is highly accessible to any graduate student of chemistry or physics with a solid grounding in many-particle quantum mechanics, wishing to understand both the fundamental theory as well as the exponentially growing number of applications. ...] In any case, no matter what your background is, it is a must-read and an excellent reference to have on your shelf."

Amazon.com, October 15, 2008, David Tempel (Cambridge, MA)"

In-Vivo Magnetic Resonance Spectroscopy III: In-Vivo MR Spectroscopy: Potential and Limitations (Paperback, Softcover reprint... In-Vivo Magnetic Resonance Spectroscopy III: In-Vivo MR Spectroscopy: Potential and Limitations (Paperback, Softcover reprint of the original 1st ed. 1992)
Markus Rudin; Contributions by N. Beckmann, J. S. Cohen, J. R. Griffiths, J.S. Ingwall, …
R3,988 Discovery Miles 39 880 Ships in 18 - 22 working days

Isolated Cells and Perfused Organs 1. O. Kaplan, P.C.M. van Zijl, J.S. Cohen, Washington, DC/USA NMR Studies of Metabolism of Cells and Perfused Organs Individual Nuclei 2. S.R. Williams, London, UK In Vivo Proton Spectroscopy: Experimental Asoects and Potential 3. N. Beckmann, Basel, Switzerland In Vivo 13C Spectroscopy in Humans 4. M.J.W. Prior, R.J. Maxwell, J.R. Griffiths, London, UK Fluorine - 19F NMR Spectroscopy and Imaging In Vivo 5. J.S. Ingwall, Boston, MA/USA Measuring Cation Movements Across the Cell Wall Using NMR Spectroscopy: Sodium Movements in Striated Muscle 6. M. Rudin, A. Sauter, Basel, Switzerland In Vivo Phosphorus-31 NMR: Potential and Limitations

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