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Vibronic Interactions in Molecules and Crystals

2012-12-06 Science
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Release : 2012-12-06
Genre : Science
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Book Rating : 795/5 ( reviews)

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Book Synopsis Vibronic Interactions in Molecules and Crystals by : Isaac B. Bersuker

Download or read book Vibronic Interactions in Molecules and Crystals written by Isaac B. Bersuker. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: Vibronic interaction effects constitute a new field of investigation in the physics and chemistry of molecules and crystals that combines all the phenomena and laws originating from the mixing of different electronic states by nuclear displacements. This field is based on a new concept which goes beyond the separate descriptions of electronic and nuclear motions in the adiabatic approximation. Publications on this topic often appear under the title of the lahn-Thller effect, although the area of application of the new approach is much wider: the term vibronic interaction seems to be more appropriate to the field as a whole. The present understanding of the subject was reached only recently, during the last quarter of a century. As a result of intensive development of the theory and experiment, it was shown that the nonadiabatic mixing of close-in-energy elec tronic states under nuclear displacements and the back influence of the modified electronic structure on the nuclear dynamics result in a series of new effects in the properties of molecules and crystals. The applications of the theory of vibronic in of spectroscopy [including visible, ultraviolet, in teractions cover the full range frared, Raman, EPR, NMR, nuclear quadrupole resonance (NQR), nuclear gam ma resonance (NOR), photoelectron and x-ray spectroscopy], polarizability and magnetic susceptibility, scattering phenomena, ideal and impurity crystal physics and chemistry (including structural as well as ferroelectric phase transitions), stereochemistry and instability of molecular (including biological) systems, mechanisms of chemical reactions and catalysis.

Vibronic Interactions in Molecules and Crystals

1989-08-10
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Release : 1989-08-10
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Kind : eBook
Book Rating : 806/5 ( reviews)

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Book Synopsis Vibronic Interactions in Molecules and Crystals by : Isaac B Bersuker

Download or read book Vibronic Interactions in Molecules and Crystals written by Isaac B Bersuker. This book was released on 1989-08-10. Available in PDF, EPUB and Kindle. Book excerpt:

Vibronic Interactions: Jahn-Teller Effect in Crystals and Molecules

2012-12-06 Science
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Release : 2012-12-06
Genre : Science
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Book Rating : 856/5 ( reviews)

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Book Synopsis Vibronic Interactions: Jahn-Teller Effect in Crystals and Molecules by : Michael D. Kaplan

Download or read book Vibronic Interactions: Jahn-Teller Effect in Crystals and Molecules written by Michael D. Kaplan. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: This book is based mostly on the reports presented at the XVth International lahn-Teller Symposium on Vibronic Interactions in Crystals and Molecules and NATO Advanced Research Workshop Colossal Magnetoresistance and Vibronic Interactions that took place at Boston on August 16-22 of the year 2000. This is the first time the Symposium took place in the USA where recently the giant splash of the attention to the 1 ahn-Teller effect occurred. This tremendous interest to the field all over the world is reflected not only in the numerous publications in many American and European 10urnals, but of the leading scientists from additionally in the Symposium's participation the well known Universities, National Laboratories and industrial companies, which was the largest in the history of the Symposium. The renaissance of the 1ahn-Teller physics is closely related to the three fundamental discoveries in science. The most significant among them is the discovery of high-Tc superconductivity by K. -A. Muller and G. Bednorz, for whom the "1ahn-Teller idea" was the motivation in their search. The result of this search is well known - a wide spectrum of the 1ahn-Teller ion based materials with Tc between 24K and 135K were found. The second discovery is the existence of a new polymorph of carbon - the C60. The microscopic analysis of all physical, chemical and biological properties of the buckyballs is based on 1ahn-Teller type of interactions. The third is colossal magnetoresistance.

Vibronic Interactions: Jahn-Teller Effect in Crystals and Molecules

2001-10-31 Science
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Release : 2001-10-31
Genre : Science
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Book Rating : 447/5 ( reviews)

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Book Synopsis Vibronic Interactions: Jahn-Teller Effect in Crystals and Molecules by : Michael D. Kaplan

Download or read book Vibronic Interactions: Jahn-Teller Effect in Crystals and Molecules written by Michael D. Kaplan. This book was released on 2001-10-31. Available in PDF, EPUB and Kindle. Book excerpt: This book is based mostly on the reports presented at the XVth International lahn-Teller Symposium on Vibronic Interactions in Crystals and Molecules and NATO Advanced Research Workshop Colossal Magnetoresistance and Vibronic Interactions that took place at Boston on August 16-22 of the year 2000. This is the first time the Symposium took place in the USA where recently the giant splash of the attention to the 1 ahn-Teller effect occurred. This tremendous interest to the field all over the world is reflected not only in the numerous publications in many American and European 10urnals, but of the leading scientists from additionally in the Symposium's participation the well known Universities, National Laboratories and industrial companies, which was the largest in the history of the Symposium. The renaissance of the 1ahn-Teller physics is closely related to the three fundamental discoveries in science. The most significant among them is the discovery of high-Tc superconductivity by K. -A. Muller and G. Bednorz, for whom the "1ahn-Teller idea" was the motivation in their search. The result of this search is well known - a wide spectrum of the 1ahn-Teller ion based materials with Tc between 24K and 135K were found. The second discovery is the existence of a new polymorph of carbon - the C60. The microscopic analysis of all physical, chemical and biological properties of the buckyballs is based on 1ahn-Teller type of interactions. The third is colossal magnetoresistance.

The Jahn-Teller Effect and Vibronic Interactions in Modern Chemistry

2013-06-29 Science
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Release : 2013-06-29
Genre : Science
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Book Rating : 532/5 ( reviews)

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Book Synopsis The Jahn-Teller Effect and Vibronic Interactions in Modern Chemistry by : Isaac Bersuker

Download or read book The Jahn-Teller Effect and Vibronic Interactions in Modern Chemistry written by Isaac Bersuker. This book was released on 2013-06-29. Available in PDF, EPUB and Kindle. Book excerpt: The first half of the title of this book may delude the uninitiated reader. The term '"Jahn-Teller effect," taken literally, refers to a special effect inherent in particular molecular systems. Actually, this term implies a new approach to the general problem of correlations between the structure and properties of any molecular polyatomic system, including solids. Just such a new approach, or concept (in some sense, a new outlook or even a new way of thinking), which leads not to one special effect but to a series of different effects and laws, is embodied in the many ( ~ 4000) studies devoted to the investigation and application of the Jahn-Teller effect. The term "vibronic interactions" seems to be most appropriate to the new concept, and this explains the origin of the second half of the title. The primary objective of this book is to present a systematic develop ment of the concept of vibronic interactions and its applications, and to illustrate its possibilities and significance in modern chemistry. In the first three chapters (covering about one-third of the book) the theoretical background of the vibronic concept and Jahn-Teller effect is given. The basic ideas are illustrated fully, although a comprehensive presentation of the theory with all related mathematical deductions is beyond the scope of this book. In the last three chapters the applications of theory to spectro scopy, stereochemistry and crystal chemistry, reactivity, and catalysis, are illustrated by a series of effects and laws.

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