Vibronic Interactions In Molecules And Crystals

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Vibronic Interactions In Molecules And Crystals

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Author : Isaac B. Bersuker
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Vibronic Interactions In Molecules And Crystals written by Isaac B. Bersuker and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

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

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Author : Isaac B Bersuker
language : en
Publisher:
Release Date : 1989-08-10

Vibronic Interactions In Molecules And Crystals written by Isaac B Bersuker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989-08-10 with categories.

Vibronic Interactions Jahn Teller Effect In Crystals And Molecules

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Author : Michael D. Kaplan
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Vibronic Interactions Jahn Teller Effect In Crystals And Molecules written by Michael D. Kaplan and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

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

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Author : Isaac Bersuker
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29

The Jahn Teller Effect And Vibronic Interactions In Modern Chemistry written by Isaac Bersuker and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Science categories.

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.

Photochemistry

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Author : D Bryce-Smith
language : en
Publisher: Royal Society of Chemistry
Release Date : 2007-10-31

Photochemistry written by D Bryce-Smith and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-10-31 with Science categories.

The breadth of scientific and technological interests in the general topic of photochemistry is truly enormous and includes, for example, such diverse areas as microelectronics, atmospheric chemistry, organic synthesis, non-conventional photoimaging, photosynthesis, solar energy conversion, polymer technologies, and spectroscopy. This Specialist Periodical Report on Photochemistry aims to provide an annual review of photo-induced processes that have relevance to the above wide-ranging academic and commercial disciplines, and interests in chemistry, physics, biology and technology. In order to provide easy access to this vast and varied literature, each volume of Photochemistry comprises sections concerned with photophysical processes in condensed phases, organic aspects which are sub-divided by chromophore type, polymer photochemistry, and photochemical aspects of solar energy conversion. Volume 34 covers literature published from July 2001 to June 2002. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis.

Positron Annihilation In Chemistry

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Author : Ole E. Mogensen
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Positron Annihilation In Chemistry written by Ole E. Mogensen and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

Positron Annihilation in Chemistry gives a critical review of the chemistry-oriented positron annihilation research. The only three light particles participating in low energy physics and chemistry are the electron, positron, and positronium. Positronium (Ps) is the most important "anomalous" atom. This volume gives the only available, critical discussion of the chemistry of the two "strange" light particles, the positron and positronium, while the excess electron has been much discussed. Many unusual phenomena in the reaction kinetics of the positron, positronium, and excess electron, and in radiation chemistry and physics, can be investigated in positron annihilation, which also gives important information on defects in solids.

Ultrafast Phenomena Xi

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Author : Thomas Elsässer
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Ultrafast Phenomena Xi written by Thomas Elsässer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

This volume contains papers presented at the Eleventh International Conference on Ultrafast Phenomena held at Garmisch-Partenkirchen, Germany, from July 12 to 17, 1998. The biannual Ultrafast Phenomena Conferences provide a forum for dis cussion of the latest advances in ultrafast optics and their applications in science and engineering. The Garmisch conference brought together a multidisciplinary group of 440 participants from 27 countries, including 127 students. The enthu siasm of this large number of Participants, the high quality of the papers they presented and the magnificent conference site resulted in a successful and pleasant conference. Progress was reported in the technology of generating ultrashort pulses, in cluding new techniques for improving laser-pulse duration, tunability over broad wavelength ranges, output power and peak intensity. Ultrafast spectroscopy con tinues to provide new insight into fundamental processes in physics, chemistry, biology, and engineering. In addition to analyzing ultrafast phenomena, control of ultrafast dynamics now represents an important topic. Ultrafast concepts and tech niques are being applied in imaging and microscopy, high speed optoelectronics, mat~rial diagnostics and processing, reflecting the maturing of the field. Acknowledgements. Many people contributed to the success of the conference.

Nonequilibrium Nondissipative Thermodynamics

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Author : Ji-Tao Wang
language : en
Publisher: Springer Science & Business Media
Release Date : 2002-03-07

Nonequilibrium Nondissipative Thermodynamics written by Ji-Tao Wang and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-03-07 with Medical categories.

Albert Einstein (1879-1955) said, "The most beautiful thing we can experience is the mysterious. It is the source of all true art and science. " For the last 30 years or so, activated low pressure diamond synthesis has been regarded as "mysterious" or a "thermodynamic paradox" perhaps "violating the second law of thermodynamics". A new field of thermodynamics, nonequilibrium nondissipative thermodynamics - has recently arisen from the puzzle. For complex systems including nonspontaneous reaction(s), the basic clas sification of equilibrium thermodynamics and nonequilibrium thermodynam ics on the basis of the second law of thermodynamics has to be changed or overthrown. Maybe we should also cite another statement of Albert Ein stein: "A theory is more impressive the greater the simplicity of its premises is, the more different kinds of things it relates, and the more extended its area of applicability. Therefore the deep impression which classical thermo dynamics made upon me. It is the only physical theory of universal content concerning which I am convinced that, within the framework of the appli cability of its basic concepts, it will never be overthrown. " and it might be that classical thermodynamics would never be overthrown. However, thought Einstein said, "it will never be overthrown" only "within the framework of the application of its basic concepts". This means that outside "the frame work of the application of its basic concepts" some basic points of view from classical thermodynamics might be overthrown or changed.

Electronic Structure And Properties Of Transition Metal Compounds

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Author : Isaac B. Bersuker
language : en
Publisher: John Wiley & Sons
Release Date : 2025-04-15

Electronic Structure And Properties Of Transition Metal Compounds written by Isaac B. Bersuker and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-04-15 with Science categories.

Presents the latest achievements in the theory of electronic structure and properties of transition metal coordination compounds with applications to a range of chemical and physical problems Electronic Structure and Properties of Transition Metal Compounds offers a detailed and authoritative account of the theory of electronic structure and the properties of transition metal compounds with applications to various chemical and physical problems. The fully updated third edition incorporates recent developments and methods in the field, including new coverage of methods of ab initio calculations of the electronic structure of coordination compounds and the application of vibronic coupling and the Jahn-Teller effect to solve coordination chemistry problems. Revised chapters provide up-to-date views on reactivity, chemical activation, and catalysis. New and expanded questions, exercises, and problems in each chapter are supported by new problem-solving examples, illustrations, graphic presentations, and references. Designed to be intelligible to advanced students, researchers, and instructors, Electronic Structure and Properties of Transition Metal Compounds: Provides thorough coverage of the theory underlying the electronic structure and properties of transition metal compounds, including the physical methods of their investigation Helps readers understand the origin of observable properties in transition metal compounds and choose a suitable method of their investigation Contains numerous problems with solutions and illustrative examples demonstrating the application of the theory to solving specific chemical and physical problems Presents a generalized view of the modern state of the field, beginning from the main ideas of quantum chemistry and atomic states to applications to various chemical and physical problems Features novel problems never fully considered in books on coordination chemistry, such as relativistic effects in bonding, optical band shapes, and electron transfer in mixed-valence compounds Electronic Structure and Properties of Transition Metal Compounds: Theory and Applications, Third Edition is an excellent textbook for graduate and advanced undergraduate chemistry students, as well as a useful reference for inorganic, bioinorganic, coordination, organometallic, and physical chemists and industrial and academic researchers working in catalysis, organic synthesis, materials science, and physical methods of investigation.

Group Theory In Chemistry And Spectroscopy

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Author : Boris S. Tsukerblat
language : en
Publisher: Courier Corporation
Release Date : 2006-08-18

Group Theory In Chemistry And Spectroscopy written by Boris S. Tsukerblat and has been published by Courier Corporation this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-08-18 with Science categories.

This handbook on group theory is geared toward chemists and experimental physicists who use spectroscopy and require knowledge of the electronic structures of the materials they investigate. Accessible to undergraduate students, it takes an elementary approach to many of the key concepts. Rather than the deductive method common to books on mathematics and theoretical physics, the present volume introduces fundamental concepts with simple examples, relating them to specific chemical and physical problems. The text is centered on detailed analysis of examples. Since neither chemists nor spectroscopists require theorem proofs, very few appear here. Instead, the focus remains on the principal conclusions, their meaning, and their use. In keeping with the text's practical bias, the main results of group theory are presented in all sections as procedures, making possible their systematic and step-by-step-application. Each chapter contains problems that develop practical skill and provide a valuable supplement to the text.