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Collision Theory and Statistical Theory of Chemical Reactions

  • Stefan G. Christov

Part of the Lecture Notes in Chemistry book series (LNC, volume 18)

Table of contents

  1. Front Matter
    Pages I-XII
  2. Stefan G. Christov
    Pages 1-7
  3. Stefan G. Christov
    Pages 8-36
  4. Stefan G. Christov
    Pages 37-121
  5. Stefan G. Christov
    Pages 122-226
  6. Stefan G. Christov
    Pages 227-313
  7. Stefan G. Christov
    Pages 314-315
  8. Back Matter
    Pages 316-324

About this book

Introduction

Since the discovery of quantum mechanics,more than fifty years ago,the theory of chemical reactivity has taken the first steps of its development. The knowledge of the electronic structure and the properties of atoms and molecules is the basis for an un­ derstanding of their interactions in the elementary act of any chemical process. The increasing information in this field during the last decades has stimulated the elaboration of the methods for evaluating the potential energy of the reacting systems as well as the creation of new methods for calculation of reaction probabili­ ties (or cross sections) and rate constants. An exact solution to these fundamental problems of theoretical chemistry based on quan­ tum mechanics and statistical physics, however, is still impossible even for the simplest chemical reactions. Therefore,different ap­ proximations have to be used in order to simplify one or the other side of the problem. At present, the basic approach in the theory of chemical reactivity consists in separating the motions of electrons and nu­ clei by making use of the Born-Oppenheimer adiabatic approximation to obtain electronic energy as an effective potential for nuclear motion. If the potential energy surface is known, one can calculate, in principle, the reaction probability for any given initial state of the system. The reaction rate is then obtained as an average of the reaction probabilities over all possible initial states of the reacting ~artic1es. In the different stages of this calculational scheme additional approximations are usually introduced.

Keywords

Activation energy Chemische Reaktion Cross section Quantenchemie Reactions chemistry energy heat information mechanics molecule physics statistical physics structure theoretical chemistry

Authors and affiliations

  • Stefan G. Christov
    • 1
  1. 1.Institute of Physical ChemistryBulgarian Academy of SciencesSofia 11-13Bulgaria

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-642-93142-0
  • Copyright Information Springer-Verlag Berlin Heidelberg 1980
  • Publisher Name Springer, Berlin, Heidelberg
  • eBook Packages Springer Book Archive
  • Print ISBN 978-3-540-10012-6
  • Online ISBN 978-3-642-93142-0
  • Series Print ISSN 0342-4901
  • Series Online ISSN 2192-6603
  • Buy this book on publisher's site
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