Potential Energy Surfaces and Dynamics Calculations

Potential Energy Surfaces and Dynamics Calculations

Author: Donald Truhlar

Publisher: Springer Science & Business Media

Published: 2013-11-11

Total Pages: 859

ISBN-13: 1475717350

DOWNLOAD EBOOK

The present volume is concerned with two of the central questions of chemical dynamics. What do we know about the energies of interaction of atoms and molecules with each other and with solid surfaces? How can such interaction energies be used to understand and make quantitative predictions about dynamical processes like scattering, energy transfer, and chemical reactions? It is becoming clearly recognized that the computer is leading to rapid progress in answering these questions. The computer allows probing dynamical mechanisms in fine detail and often allows us to answer questions that cannot be addressed with current experimental techniques. As we enter the 1980's, not only are more powerful and faster computers being used, but techniques and methods have been honed to a state where exciting and reliable data are being generated on a variety of systems at an unprecedented pace. The present volume presents a collection of work that illustrates the capabilities and some of the successes of this kind of computer-assisted research. In a 1978 Chemical Society Report, Frey and Walsh pointed out that "it is extremely doubtful if a calculated energy of activation for any unimolecular decomposition can replace an experimental deter mination. " However they also recorded that they "believe[d] that some of the elaborate calculations being performed at present do suggest that we may be approaching a time when a choice between reaction mechanisms will be helped by such [computational] work.


Properties of Chemically Interesting Potential Energy Surfaces

Properties of Chemically Interesting Potential Energy Surfaces

Author: Dietmar Heidrich

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 193

ISBN-13: 3642934994

DOWNLOAD EBOOK

Contemporary chemical reaction theory is the characterization of Potential Energy Hypersurfaces (PES). The authors critically analyze chemically and mathematically suitable reaction path definitions. The book presents a simple mathematical analysis of stationary and critical points of the PES. It provides tools for studying chemical reactions by calculating reaction paths and related curves. A further aspect of the book is the dependence of PES properties on approximations used for the analysis. Recent quantum chemical calculations, particularly of single proton transfer processes, and experimental data are compared. The book addresses students and researchers in Theoretical Chemistry, Chemical Kinetics and related fields.


Computational Chemistry

Computational Chemistry

Author: Errol G. Lewars

Publisher: Springer Science & Business Media

Published: 2007-05-08

Total Pages: 474

ISBN-13: 0306483912

DOWNLOAD EBOOK

Computational chemistry has become extremely important in the last decade, being widely used in academic and industrial research. Yet there have been few books designed to teach the subject to nonspecialists. Computational Chemistry: Introduction to the Theory and Applications of Molecular and Quantum Mechanics is an invaluable tool for teaching and researchers alike. The book provides an overview of the field, explains the basic underlying theory at a meaningful level that is not beyond beginners, and it gives numerous comparisons of different methods with one another and with experiment. The following concepts are illustrated and their possibilities and limitations are given: - potential energy surfaces; - simple and extended Hückel methods; - ab initio, AM1 and related semiempirical methods; - density functional theory (DFT). Topics are placed in a historical context, adding interest to them and removing much of their apparently arbitrary aspect. The large number of references, to all significant topics mentioned, should make this book useful not only to undergraduates but also to graduate students and academic and industrial researchers.


Physical Chemistry for the Biosciences

Physical Chemistry for the Biosciences

Author: Raymond Chang

Publisher: University Science Books

Published: 2005-02-11

Total Pages: 706

ISBN-13: 9781891389337

DOWNLOAD EBOOK

This book is ideal for use in a one-semester introductory course in physical chemistry for students of life sciences. The author's aim is to emphasize the understanding of physical concepts rather than focus on precise mathematical development or on actual experimental details. Subsequently, only basic skills of differential and integral calculus are required for understanding the equations. The end-of-chapter problems have both physiochemical and biological applications.


Reviews in Computational Chemistry, Volume 31

Reviews in Computational Chemistry, Volume 31

Author: Abby L. Parrill

Publisher: John Wiley & Sons

Published: 2018-11-06

Total Pages: 368

ISBN-13: 1119518024

DOWNLOAD EBOOK

The Reviews in Computational Chemistry series brings together leading authorities in the field to teach the newcomer and update the expert on topics centered on molecular modeling, such as computer-assisted molecular design (CAMD), quantum chemistry, molecular mechanics and dynamics, and quantitative structure-activity relationships (QSAR). This volume, like those prior to it, features chapters by experts in various fields of computational chemistry. Topics in Volume 31 include: Lattice-Boltzmann Modeling of Multicomponent Systems: An Introduction Modeling Mechanochemistry from First Principles Mapping Energy Transport Networks in Proteins The Role of Computations in Catalysis The Construction of Ab Initio Based Potential Energy Surfaces Uncertainty Quantification for Molecular Dynamics


Modern Electronic Structure Theory

Modern Electronic Structure Theory

Author: D. R. Yarkony

Publisher: World Scientific

Published: 1995

Total Pages: 785

ISBN-13: 9812832114

DOWNLOAD EBOOK

Modern Electronic Structure Theory provides a didactically oriented description of the latest computational techniques in electronic structure theory and their impact in several areas of chemistry. The book is aimed at first year graduate students or college seniors considering graduate study in computational chemistry, or researchers who wish to acquire a wider knowledge of this field.


Potential Energy Surfaces

Potential Energy Surfaces

Author: K. P. Lawley

Publisher: John Wiley & Sons

Published: 2009-09-08

Total Pages: 618

ISBN-13: 047014307X

DOWNLOAD EBOOK

Shows the diversity and sophistication of present knowledge of molecular collisions and the forces that govern their outcome, examining major aspects from the point of view of the potential surface. Covers such topics as angle dependent potentials, vibranic coupling, and branching ratios in simple atomic reactions.


Molecular Potential Energy Functions

Molecular Potential Energy Functions

Author: John N. Murrell

Publisher:

Published: 1984

Total Pages: 216

ISBN-13:

DOWNLOAD EBOOK

Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.


Geometrical Derivatives of Energy Surfaces and Molecular Properties

Geometrical Derivatives of Energy Surfaces and Molecular Properties

Author: Poul Jørgensen

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 337

ISBN-13: 9400945841

DOWNLOAD EBOOK

The development and computational implementation of analytical expres sions for the low-order derivatives of electronic energy surfaces and other molecular properties has undergone rapid growth in recent years. It is now fairly routine for chemists to make use of energy gradient information in locating and identifying stable geometries and transition states. The use of second analytical derivative (Hessian or curvature) expressions is not yet routine, and third and higher energy derivatives as well as property (e.g., dipole moment, polarizability) derivatives are just beginning to be applied to chemical problems. This NATO Advanced Research Workshop focused on analyzing the re lative merits of various strategies for deriving the requisite analyti cal expressions, for computing necessary integral derivatives and wave function parameter derivatives, and for efficiently coding these expres sions on conventional scalar machines and vector-oriented computers. The participant list contained many scientists who have been instrumen tal in bringing this field to fruition as well as eminent scientists who have broad knowledge and experience in quantum chemistry in general.