Ab Initio Molecular Orbital Calculations for Chemists

Ab Initio Molecular Orbital Calculations for Chemists PDF Author: William Graham Richards
Publisher: Oxford University Press, USA
ISBN:
Category : Language Arts & Disciplines
Languages : en
Pages : 134

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Book Description

Ab Initio Molecular Orbital Calculations for Chemists

Ab Initio Molecular Orbital Calculations for Chemists PDF Author: William Graham Richards
Publisher: Oxford University Press, USA
ISBN:
Category : Language Arts & Disciplines
Languages : en
Pages : 134

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Book Description


Molecular Orbital Calculations Using Chemical Graph Theory

Molecular Orbital Calculations Using Chemical Graph Theory PDF Author: Jerry R. Dias
Publisher: Springer Science & Business Media
ISBN: 3642778941
Category : Mathematics
Languages : en
Pages : 123

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Book Description
Professor John D. Roberts published a highly readable book on Molecular Orbital Calculations directed toward chemists in 1962. That timely book is the model for this book. The audience this book is directed toward are senior undergraduate and beginning graduate students as well as practicing bench chemists who have a desire to develop conceptual tools for understanding chemical phenomena. Although, ab initio and more advanced semi-empirical MO methods are regarded as being more reliable than HMO in an absolute sense, there is good evidence that HMO provides reliable relative answers particularly when comparing related molecular species. Thus, HMO can be used to rationalize electronic structure in 1t-systems, aromaticity, and the shape use HMO to gain insight of simple molecular orbitals. Experimentalists still into subtle electronic interactions for interpretation of UV and photoelectron spectra. Herein, it will be shown that one can use graph theory to streamline their HMO computational efforts and to arrive at answers quickly without the aid of a group theory or a computer program of which the experimentalist has no understanding. The merging of mathematical graph theory with chemical theory is the formalization of what most chemists do in a more or less intuitive mode. Chemists currently use graphical images to embody chemical information in compact form which can be transformed into algebraical sets. Chemical graph theory provides simple descriptive interpretations of complicated quantum mechanical calculations and is, thereby, in-itself-by-itself an important discipline of study.

Ab Initio Molecular Orbital Calculations for Chemists

Ab Initio Molecular Orbital Calculations for Chemists PDF Author: William Graham Richards
Publisher:
ISBN:
Category : Molecular orbitals
Languages : en
Pages : 102

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Book Description


Molecular Structure and Statistical Thermodynamics

Molecular Structure and Statistical Thermodynamics PDF Author: Kenneth S. Pitzer
Publisher: World Scientific
ISBN: 9812795960
Category : Science
Languages : en
Pages : 537

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Book Description
This book considers molecular structural information, statistical methods and thermodynamic measurements, and the ways in which the relative role of each differs from another. By putting together selected papers in a single publication, the book highlights the cohesive aspects of certain advances through time and development, and can aid historical studies. Several papers from journals not widely circulated can also be found in this selection of papers.

Ab Initio Molecular Orbital Calculations for Chemists

Ab Initio Molecular Orbital Calculations for Chemists PDF Author: William Graham Richards
Publisher:
ISBN:
Category : Molecular orbitals
Languages : en
Pages : 116

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Book Description


Frontier Orbitals and Reaction Paths

Frontier Orbitals and Reaction Paths PDF Author: Kenichi Fukui
Publisher: World Scientific
ISBN: 9812795847
Category : Science
Languages : en
Pages : 563

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Book Description
A collection of selected papers on the Frontier Orbital Theory, with introductory notes. It provides the basic concept and formulation of the theory, and the physical and chemical significance of the frontier orbital interactions in chemistry, together with many practical applications. The formulation of the Intrinsic Reaction Coordinate and applications to some simple systems are also presented. The aim of this volume is to show by what forces chemical reactions are driven and to demonstrate how the regio- and stereo-selectivities are determined in chemical reactions. Students and senior investigators will gain insight into the nature of chemical reactions and find out how quantum chemical calculations are connected with chemical intuition.

Ab Initio Methods in Quantum Chemistry, Volume 67, Part 1

Ab Initio Methods in Quantum Chemistry, Volume 67, Part 1 PDF Author: K. P. Lawley
Publisher: John Wiley & Sons
ISBN: 0470143371
Category : Science
Languages : en
Pages : 568

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Book Description
The Advances in Chemical Physics series provides the chemical physics and physical chemistry fields with a forum for critical, authoritative evaluations of advances in every area of the discipline. Filled with cutting-edge research reported in a cohesive manner not found elsewhere in the literature, each volume of the Advances in Chemical Physics series serves as the perfect supplement to any advanced graduate class devoted to the study of chemical physics.

Comparison of Ab Initio Quantum Chemistry with Experiment for Small Molecules

Comparison of Ab Initio Quantum Chemistry with Experiment for Small Molecules PDF Author: R.J. Bartlett
Publisher: Springer Science & Business Media
ISBN: 9400954743
Category : Science
Languages : en
Pages : 512

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Book Description
At the American Chemical Society meeting in Philadelphia, Pennsylvania, U.S.A., a symposium was organized entitled, "Comparison of Ab Initio Quantum Chemistry with Experiment: State-of-the-Art." The intent of the symposium was to bring together forefront experimen talists, who perform the types of clean, penetrating experiments that are amenable to thorough theoretical analysis, with inventive theore ticians who have developed high accuracy ab initio methods that are capable of competing favorably with experiment, to assess the current applicability of theoretical methods in chemistry. Contributions from many of those speakers (see Appendix A) plus others selected for their expertise in the subject are contained in this volume. Such a book is especially timely, since with the recent develop ment of new, more accurate and powerful ab initio methods coupled with the exceptional progress achieved in computational equipment, ab initio quantum chemistry is now often able to offer a third voice to resolve experimental discrepancies, assist essentially in the interpre tation of experiments, and frequently, provide quantitatively accurate results for molecular properties that are not available from experiment.

Molecular Orbital Calculations for Biological Systems

Molecular Orbital Calculations for Biological Systems PDF Author: Anne-Marie Sapse
Publisher: Oxford University Press
ISBN: 0195356845
Category : Medical
Languages : en
Pages : 248

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Book Description
Molecular Orbital Calculations for Biological Systems is a hands-on guide to computational quantum chemistry and its applications in organic chemistry, biochemistry, and molecular biology. With improvements in software, molecular modeling techniques are now becoming widely available; they are increasingly used to complement experimental results, saving significant amounts of lab time. Common applications include pharmaceutical research and development; for example, ab initio and semi-empirical methods are playing important roles in peptide investigations and in drug design. The opening chapters provide an introduction for the non-quantum chemist to the basic quantum chemistry methods, ab initio, semi-empirical, and density functionals, as well as to one of the main families of computer programs, the Gaussian series. The second part then describes current research which applies quantum chemistry methods to such biological systems as amino acids, peptides, and anti-cancer drugs. Throughout the authors seek to encourage biochemists to discover aspects of their own research which might benefit from computational work. They also show that the methods are accessible to researchers from a wide range of mathematical backgrounds. Combining concise introductions with practical advice, this volume will be an invaluable tool for research on biological systems.

Ab initio Molecular Orbital Calculations for Chemists

Ab initio Molecular Orbital Calculations for Chemists PDF Author: William Graham Richards
Publisher:
ISBN:
Category : Molecular orbitals
Languages : en
Pages : 116

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Book Description