Electron Tunneling in Chemistry - 1st Edition - ISBN: 9780444873644, 9780080868240

Electron Tunneling in Chemistry, Volume 30

1st Edition

Authors: R.F. Khairutdinov K.I. Zamaraev V.P. Zhadanov
eBook ISBN: 9780080868240
Imprint: Elsevier Science
Published Date: 17th October 1989
Page Count: 358
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Table of Contents

1. Introduction. 2. Tunneling Phenomena in Physics and Chemistry. Tunneling effects in nuclear physics. Tunneling phenomena in atomic physics. Electron tunneling in solid state physics. Tunnel phenomena in chemistry. 3. The Theory of the Elementary Act of Electron Tunneling Reactions in Condensed Media. General concepts. Adiabatic approximation; adiabatic and diabatic potential surfaces and wave functions. Dependence of the exchange matrix element on the distance between the donor and the acceptor and on their mutual orientation. General formula for the probability tunneling; harmonic approximation; the Franck-Condon approximation. Classical degrees of freedom. Quantum degrees of freedom. Connection of the probability of tunneling with the macroscopic characteristics of the medium. Non-adiabatic effects in electron tunneling. Electron tunneling accompanied by the emission or absorption of light. Conclusion. 4. Macroscopic Kinetics of Electron Tunneling Reactions in Condensed Media. Peculiar features of the kinetics of electron tunneling reactions in condensed media. The kinetics of electron tunneling reactions for immobile reagents. The influence of the external electric field on the kinetics of electron tunneling reactions. The influence of reagent mobility on the kinetics of electron tunneling reactions. 5. Methodology of Studying Electron Tunneling Reactions. Physical and chemical properties of the systems used for studying electron tunneling reactions. 2. Methodology of analysing the kinetic data for electron tunneling reactions. 6. Tunneling Reactions of Trapped Electrons. The nature of trapped electrons. Recombination of etr with hole centres. Low-temperature reactions of etr with acceptor additives. Tunneling reactions of etr near the temperature of matrix devitrification; effect of translational mobility of reagents on the kinetics. Long-range tunneling in the course of photoannealing of etr. 7. Electron Tunneling in Reactions of Particles Other Than etr. Electron tunneling reactions between inorganic ion radicals and transition metal compounds. Tunneling reactions of organic ion radicals. Electron tunneling reactions between metal compounds. Electron tunneling from electron-excited particles to acceptors. Tunneling recombination of donor-acceptor pairs in crystals. Tunneling reactions on solid surfaces. Comparison of the model of direct electron tunneling with alternative models. Conclusion. 8. Electron Tunneling in Biological Systems. Electron tunneling in the reaction centres of photosynthesizing systems. Electron tunneling in reactions involving chlorophyll and its synthetic analogues. Electron tunneling between macromolecules attached to proteins. Conclusion. 9. Electron Tunneling in Artificial Organized Molecular Structures. Photoseparation of charges in organized molecular assemblies. Intramolecular electron transfer in bridge molecules. Conclusion. 10. Conclusion. References. Appendix. Transmission coefficients for electron tunneling under barriers of various shapes. (References are given at the end of each chapter). Index.


In Volume 30, an attempt is made to consider comprehensively both theoretical and experimental data that have been obtained to date on electron tunneling reactions involving chemical compounds of various classes, and to discuss the role played by these reactions in different areas of chemistry. The discussion of the above problem is preceded by a review of data on tunneling phenomena in nuclear physics, atomic physics, solid-state physics, as well as on the tunneling effects in chemistry that go beyond the framework of the main subject of this monograph. This review is included to acquaint the reader with the role of tunneling phenomena in physics and chemistry as a whole, to show how diversified the kingdom of tunneling phenomena is, and to see more distinctly the similarities and the differences between electron tunneling in chemical reactions and other tunnel phenomena.


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© Elsevier Science 1989
Elsevier Science
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@from:R.L. Johnston @qu:...will be a valuable addition to departmental libraries @source:Faraday Transactions @qu:...is a review of many recent reviews on electron tunneling in chemistry and hence it can be treated as a Text Book as well as a reference book. ...will be a valuable addition to the libraries of academic and research institutions. @source:Bulletin of Electrochemistry

About the Authors

R.F. Khairutdinov Author

K.I. Zamaraev Author

V.P. Zhadanov Author