Electron Tunneling in Chemistry (eBook)

R.F. Khairutdinov, K.I. Zamaraev, V.P. Zhadanov (Autoren)

eBook Download: PDF

1989 | 1. Auflage
358 Seiten
Elsevier Science (Verlag)
978-0-08-086824-0 (ISBN)

Infos

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.

Inhalt

Front Cover 1
Comprehensive Chemical Kinetics, Volume 30 4
Copyright Page 5
Contents 11
Preface 10
Chapter 1. Introduction 16
References 20
Chapter 2. Tunneling phenomena in physics and chemistry 22
1. Tunneling effects in nuclear physics 22
2. Tunneling phenomena in atomic physics 27
3. Electron tunneling in solid state physics 44
4. Tunnel phenomena in chemistry 60
References 81
Chapter 3. The theory of the elementary act of electron tunneling reactions in condensed media 84
1. General concepts 84
2. Adiabatic approximation . Adiabatic and diabatic potential surfaces and wave functions 87
3. Dependence of the exchange matrix element on the distance between the donor and the acceptor and on their mutual orientation 91
4. General formula for the probability of tunneling . Harmonic approximation. The Franck-Condon approximation 96
5. Classical degrees of freedom 100
6. Quantum degrees of freedom 104
7. Connection of the probability of tunneling with the macroscopic characteristics of the medium 108
8. Non-adiabatic effects in electron tunneling 115
9. Electron tunneling accompanied by the emission or absorption of light 119
10. Conclusion 122
References 124
Chapter 4. Macroscopic kinetics of electron tunneling reactions in condensed media 126
1. Peculiar features of the kinetics of electron tunneling reactions in condensed media 126
2. The kinetics of electron tunneling reactions for immobile reagents 128
3. The influence of the external electric field on the kinetics of electron tunneling reactions 144
4. The influence of reagent mobility on the kinetics of electron tunneling reactions 147
References 151
Chapter 5. Methodology of studying electron tunneling reactions 152
1. Physical and chemical properties of the systems used for studying electron tunnel- ing reactions 152
2. Methodology of analysing the kinetic data for electron tunneling reactions 161
References 175
Chapter 6. Tunneling reactions of trapped electrons 176
1. The nature of trapped electrons 176
2. Recombination of et-u with hole centres 181
3. Low-temperature reactions of e-u with acceptor additives 203
4. Tunneling reactions of e-u near the temperature of matrix devitrification . Effect of translational mobility of reagents on the kinetics 227

Chapter 7. Electron tunneling in reactions of particles other than e-u 240
1. Electron tunneling reactions between inorganic ion radicals and transition metal compounds 240
2. Tunneling reactions of organic ion radicals 247
3. Electron tunneling reactions between metal compounds 252
4. Electron tunneling from electron-excited particles to acceptors 255
5. Tunneling recombination of donor–acceptor pairs in crystals 268
6. Tunneling reactions on solid surfaces 276
7. Comparison of the model of direct electron tunneling with alternative models 280
8. Conclusion 284
References 284
Chapter 8. Electron tunneling in biological systems 288
1. Electron tunneling in the reaction centres of photosynthesizing systems 288
2. Electron tunneling in reactions involving chlorophyll and its synthetic analogues 308
3. Electron tunneling between molecules attached to proteins 317
4. Conclusion 326
References 328
Chapter 9. Electron tunneling in artificial organized molecular structures 332
1. Photoseparation of charges in organized molecular assemblies 332
2. Intramolecular electron transfer in bridge molecules 339
3. Conclusion 353
Reference 354
Chapter 10. Conclusion 358
References 361
Appendix 364
Transmission coefficients for electron tunneling under barriers of various shapes 364
References 366
Index 368

Produkt-Details

• Erscheint lt. Verlag: 17.10.1989
• Sprache: englisch
• Themenwelt: Naturwissenschaften ► Chemie ► Physikalische Chemie
• Themenwelt: Naturwissenschaften ► Physik / Astronomie ► Quantenphysik
• Themenwelt: Technik
• ISBN-10: 0-08-086824-X / 008086824X
• ISBN-13: 978-0-08-086824-0 / 9780080868240