Molecular Structure and Energetics, Modern Models of Bonding and Delocalization PDF Download
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Author: Joel F. Liebman
Publisher: Wiley-VCH
ISBN: 9780471187226
Category : Science
Languages : en
Pages : 0
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Book Description
Modern Models of Bonding and Delocalization Edited by Joel F. Liebman Arthur Greenberg In addition to describing modern views of bonding and delocalization, this volume presents the ways in which these have been deduced. For example, qualitative pictures of small rings often include the competing and now classic concepts of strain and aromaticity. Quantitative quantum chemical calculations provide topological views of molecular electron density, which in turn yield new descriptions and related insights.
Author: Joel F. Liebman
Publisher: Wiley-VCH
ISBN: 9780471187226
Category : Science
Languages : en
Pages : 0
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Book Description
Modern Models of Bonding and Delocalization Edited by Joel F. Liebman Arthur Greenberg In addition to describing modern views of bonding and delocalization, this volume presents the ways in which these have been deduced. For example, qualitative pictures of small rings often include the competing and now classic concepts of strain and aromaticity. Quantitative quantum chemical calculations provide topological views of molecular electron density, which in turn yield new descriptions and related insights.
Author: [Anonymus AC01254077]
Publisher:
ISBN: 9783527269570
Category :
Languages : en
Pages :
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Book Description
Author: Joel F. Liebman
Publisher:
ISBN: 9780895731395
Category :
Languages : en
Pages :
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Book Description
Author: Joel F. Liebman
Publisher:
ISBN:
Category : Chemical bonds
Languages : en
Pages : 234
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Book Description
Author: Joel F. Liebman
Publisher: Wiley-Interscience
ISBN: 9780471186694
Category : Science
Languages : en
Pages : 0
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Book Description
Molecular Structure and Energetics Volume 1 Edited by Joel F. Liebman Arthur Greenberg This series has as its theme two of the most widespread, fundamental and important concepts in chemistry: molecular structure and energetics. The scope of the series ranges from species as elegantly simple as elemental boron and carbon to those as ill-defined, yet important, as atmospheric particulates; from rearrangements in clusters to the strain and aromaticity of organic molecules; from the energies of protonation of atoms and diatomic molecules to the binding of substrates to natural and synthetic enzymes. Each volume consists of chapters by leading specialists, and is focused on a common theme. Each essay provides a tutorial review which is generally in a form that blends theory and experiment as well as rigor and intuition. Volume 1, Chemical Bonding Molecules, examines nine topics in the fundamental, conceptual and theoretical framework of molecular structure and energetics. All the essays explicitly compare and interweave findings from experiment and from both calculational and qualitative theory.
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Category : Molecular dynamics
Languages : en
Pages : 376
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Book Description
Author: Ahmed H Zewail
Publisher: World Scientific
ISBN: 981450212X
Category : Science
Languages : en
Pages : 373
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Book Description
These two volumes on Femtochemistry present a timely contribution to a field central to the understanding of the dynamics of the chemical bond. This century has witnessed great strides in time and space resolutions, down to the atomic scale, providing chemists, biologists and physicists with unprecedented opportunities for seeing microscopic structures and dynamics. Femtochemistry is concerned with the time resolution of the most elementary motions of atoms during chemical change - bond breaking and bond making - on the femtosecond (10-15 second) time scale. This atomic scale of time resolution has now reached the ultimate for the chemical bond and as Lord George Porter puts it, chemists are near the end of the race against time. These two volumes cover the general concepts, techniques and applications of femtochemistry.Professor Ahmed Zewail, who has made the pioneering contributions in this field, has from over 250 publications selected the articles for this anthology. These volumes begin with a commentary and a historical chronology of the milestones. He then presents a broad perspective of the current state of knowledge in femtochemistry by researchers around the world and discusses possible new directions. In the words of a colleague, ';it is a must on the reading-list for all of my students ...; all readers will find this to be an informative and valuable overview.';The introductory articles in Volume I provide reviews for both the non-experts as well as for experts in the field. This is followed by papers on the basic concepts. For applications, elementary reactions are studied first and then complex reactions. Volume I is complete with studies of solvation dynamics, non-reactive systems, ultrafast electron diffraction and the control of chemical reactions.Volume II continues with reaction rates, the concept of elementary intramolecular vibrational-energy redistribution (IVR) and the phenomena of rotational coherence which has become a powerful tool for the determination of molecular structure via time resolution. The second volume ends with an extensive list of references, according to topics, based on work by Professor Zewail and his group at Caltech.These collected works by Professor Zewail will certainly be indispensable to both experts and beginners in the field. The author is known for his clarity and for his creative and systematic contributions. These volumes will be of interest and should prove useful to chemists, biologists and physicists. As noted by Professor J Manz (Berlin) and Professor A W Castleman, Jr. (Penn State): femtochemistry is yielding exciting new discoveries from analysis to control of chemical reactions, with applications in many domains of chemistry and related fields, e.g., physical, organic and inorganic chemistry, surface science, molecular biology, ...; etc.
Author: Valerio Magnasco
Publisher: John Wiley & Sons
ISBN: 1119957346
Category : Science
Languages : en
Pages : 232
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Book Description
A readable little book assisting the student in understanding, in a nonmathematical way, the essentials of the different bonds occurring in chemistry. Starting with a short, self-contained,introduction, Chapter 1 presents the essential elements of the variation approach to either total or second-order molecular energies, the system of atomic units (au) necessary to simplify all mathematical expressions, and an introductory description of the electron distribution in molecules. Using mostly 2x2 Hückel secular equations, Chapter 2, by far the largest part of the book because of the many implications of the chemical bond, introduces a model of bonding in homonuclear and heteronuclear diatomics, multiple and delocalized bonds in hydrocarbons, and the stereochemistry of chemical bonds in polyatomic molecules, in a word, a model of the strong first-order interactions originating the chemical bond. In Chapter 3 the Hückel model of the linear polyene chain is used to explain the origin of band structure in the 1-dimensional crystal. Chapter 4 deals with a simple two-state model of weak interactions, introducing the reader to understand second-order electric properties of molecules and VdW bonding between closed shells. Lastly, Chapter 5 studies the structure of H-bonded dimers and the nature of the hydrogen bond, which has a strength intermediate between a VdW bond and a weak chemical bond. Besides a qualitative MO approach based on HOMO-LUMO charge transfer from an electron donor to an electron acceptor molecule, a quantitative electrostatic approach is presented yielding an electrostatic model working even at its simplest pictorial level. A list of alphabetically ordered references, author and subject indices complete the book.
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ISBN:
Category :
Languages : en
Pages :
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Author: Zvonimir B. Maksic
Publisher: Springer
ISBN: 9783540515531
Category : Science
Languages : en
Pages : 544
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Book Description
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.
