Dynamic spin chemistry: magnetic controls and spin dynamics of chemical reactions
Saved in:
| Format: | Book |
|---|---|
| Language: | English |
| Published: |
Tokyo
Kodansha [u.a.]
1998
|
| Subjects: | |
| Online Access: | Inhaltsverzeichnis |
| Physical Description: | XIII, 297 S. graph. Darst. |
| ISBN: | 0471328367 4062091801 |
Staff View
MARC
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| 245 | 1 | 0 | |a Dynamic spin chemistry |b magnetic controls and spin dynamics of chemical reactions |c ed. by Saburo Nagakura ... |
| 264 | 1 | |a Tokyo |b Kodansha [u.a.] |c 1998 | |
| 300 | |a XIII, 297 S. |b graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 650 | 7 | |a Magnétisme nucléaire |2 ram | |
| 650 | 7 | |a Magnétochimie |2 ram | |
| 650 | 7 | |a Réactions chimiques |2 ram | |
| 650 | 7 | |a Spin |2 ram | |
| 650 | 4 | |a Chemical reactions | |
| 650 | 4 | |a Nuclear magnetism | |
| 650 | 4 | |a Nuclear spin | |
| 650 | 0 | 7 | |a Spin |0 (DE-588)4125988-9 |2 gnd |9 rswk-swf |
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| 700 | 1 | |a Nagakura, Saburo |e Sonstige |4 oth | |
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| 999 | |a oai:aleph.bib-bvb.de:BVB01-008647022 | ||
Record in the Search Index
| _version_ | 1804127383801823233 |
|---|---|
| adam_text | Dynamic Spin Chemistry
Magnetic Controls and Spin Dynamics
of Chemical Reactions
Edited by
Saburo Nagakura, Hisaharu Hayashi and Tohru Azumi
A KODANSHA LTD and JOHN WILEY amp; SONS, INC co-publication
KODANSHA Tokyo
WILEY New YorkChichesterWeinheimBrisbaneSingaporeToronto
WltfY
Contents
List of Contributors v
Preface vii
1 What is Dynamic Spin Chemistry? 1
11A Brief Historical Survey of Dynamic Spin Chemistry 1
1 2 New Research Trends in Dynamic Spin Chemistry and Future Perspectives 3
References 5
2 Magnetic Field and Magnetic Isotope Effects on Reactions of Radical
Pairs 7
2 1 Introduction 7
2 2 The Radical Pair Mechanism 8
221 Singlet-Triplet Conversion in Radical Pairs 8
222 CIDNP,CIDEP,MFE,and MIE Due to the Radical Pair Mechanism 11
223 Classification of the Magnetic Field and Magnetic Isotope Effects Due to the
Radical Pair Mechanism IS
224 The Relaxation Mechanism and Other Mechanisms for MFEs and MIEs 18
2 3 Typical Magnetic Field and Isotope Effects upon Reactions through Radical Pairs
2 4 Effects of Large Magnetic Fields in Reactions of Radical Pairs Involving Light
Atom-Centered Radicals 27
2 5 Magnetic Field and Magnetic Isotope Effects upon Reactions of Radical Pairs
Involving Heavy Atom-Centered Radicals 34
2 6 Magnetic Field Effects on Reactions of Radical Pairs in Non-viscous Solutions
x Contents
References 46
3 Magnetic Field and Magnetic Isotope Effects on Biradical Reactions
3 1 Introduction 49
3 2 Magnetic Field Effects on End Product Yields 52
3 3 Magnetic Field Effects on Biradical Lifetimes 61
331 Singlet Biradicals 61
332 Triplet Biradicals 66
333 Comparison of U 69
3 4 Magnetic Field Effects in High Field Region—Reversal of Magnetic Field Effects
on Biradical Lifetimes 70
341 Singlet Biradicals 70
342 Triplet Biradicals 73
3 5 Magnetic Isotope Effects (MIEs) on Biradical Lifetimes and Disappearance of
MIEs 76
3 6 Photochemistry of Cycloalkanones and Xanthone-Xanthene Linked Molecules
References 80
4 Magnetic Field Effects on Dynamic Behavior of Excited Molecules in
the Gas Phase 83
4 1 Introduction 83
4 2 Theory of Magnetic Fluorescence Quenching 84
421 Level Structure and Fluorescence Property in the Absence of a Magnetic Field
422 The Small Molecule Limit, the Statistical Limit, and the Intermediate Case 85
423 Mechanism of the Magnetic Fluorescence Quenching 87
4 3 Magnetic Fluorescence Quenching Due to the Indirect Mechanism 92
431 Magnetic Field Effects on Fluorescence Quantum Yield 97
432 Model Calculation of Magnetic Fluorescence Quenching Caused by the Indirect
Mechanism 100
433 Magnetic Field Effect on Lifetime 104
434 Magnetic Field Effect on Fluorescence and IVR 107
435 Relation to Photodissociation via Triplet States 110
4 4 Magnetic Fluorescence Quenching Due to the Direct Mechanism 112
4 5 Magnetic Field Effects on Gas-Phase Reactions 119
451 Magnetic Field Effects on Chemiluminescence 119
Contents xi
452 Relation between Magnetic Fluorescence Quenching and Predissociation 126
References 128
5 Magnetic Field Effects on Chemical Equilibria 131
5 1 Introduction 131
5 2 Chemical Equilibria in Magnetic Fields 131
521 Magnetochemical Potential and the Condition of Chemical Equilibrium 131
522 Ideal Gas Reaction 134
523 Electrochemical System 135
524 Phase Rule of Chemical Reactions in Magnetic Fields 136
5 3 Metal-Hydrogen System 137
531 Thermodynamic and Magnetic Properties of Metal Hydrides 137
532 Gas-Solid Reaction 140
533 Metal Hydride Electrode 147
References 151
6 Spin Spectroscopy Focusing on Nuclear Spin Polarization 153
6 1 Significance of Utilizing Nuclear Spin Polarization 154
6 2 Mechanism of the Creation of Nuclear Spin Polarization 154
621 Nuclear Spin Polarization Generated in Intermediate Free Radicals 154
622 Nuclear Spin Polarization Created in Radical Pairs 158
6 3 Nuclear Spin Polarization-detected Magnetic Resonance Spectrum 166
6 4 Quantitative Measurements of Nuclear Spin Polarization 168
6 5 Mechanism of the Creation of Nuclear Spin Polarization Examined by Time-
resolved CIDNP 169
6 6 Studies of Photochemically Created Intermediate Radicals by Nuclear Spin
Polarization-detected Magnetic Resonance 172
661 Determination of the Mechanism of Cross Relaxation by Measurement of DNP
662 Observation of the Spectra of Radical Pairs and Free Radicals by Separating the
SNPandDNP 174
663 Time-resolved Nuclear Spin Polarization-detected ESR Spectroscopy 179
6 7 Effect of Coulombic Interaction between Radicals as Studied by the Permittivity
Dependence of CIDNP 183
References 186
7 Chemically Induced Dynamic Electron Polarization (CIDEP) Studies in
xii Contents
Photochemical Reactions 187
7 1 Introduction 187
7 2 Summary of the CIDEP Theories 189
721 Triplet Mechanism 189
722 Radical Pair Mechanism 191
723 Radical Triplet Pair Mechanism (RTPM) 194
724 Spin-Correlated Radical Pair (SCRP) 196
725 Other Sources of Polarization 198
7 3 Experimental Methods 199
731 CW Time-resolved EPR 199
732 Pulsed and FT Methods 201
7 4 New Aspects of CIDEP 206
741 Radical Triplet Interactions 206
742 Spin-Orbit Interaction induced Polarization 212
743 Frequency Dependence of CIDEP 213
7 5 Spin-Correlated Radical Pairs (SCRPs) 218
751 SCRPs in Solution 218
752 SCRPs in Micelles 218
753 Application of 2D Nutation Spectroscopy 221
7 6 Reaction Dynamics and Mechanisms 223
761 CIDEP and Radical Diffusion 223
762 Studies of Initial Processes of Photochemical Reactions 227
7 7 Triplet States 236
771 Studies of Triplet State Dynamics 236
772 Time-resolved ENDOR 239
773 Excimer and Exciplex 240
774 State Mixing 242
775 Triplets in Solution 245
7 8 Concluding Remarks 246
References 246
8 Reaction-Yield-Detected ESR and Its Application to Control Chemical
Reactions 249
8 1 Introduction 249
8 2 Historical Overview 251
821 Optically Detected Magnetic Resonance (ODMR) 251
822 Absorption-detected ESR (ADESR) 252
823 Conductance-detected ESR 253
Contents xiii
824 CIDNP-detected ESR 253
825 Reaction-yield-detected ESR (RYDESR) 254
826 The Effect of Strong Microwave Field 255
8 3 Principle of the Method 256
831 The Eigenstates and the Microwave Effect 257
832 Effect of Microwave on the Spin Pair 260
833 Statistical Theory for the Indirect ESR of Spin Pair 261
8 4 Fluorescence-detected ESR 265
841 Apparatus 265
842 Geminate Recombination in Radiation Chemistry 266
843 Charge Transfer Process in Solid 268
844 Charge Transfer in Polymers 270
845 Singlet-Triplet Level Crossing 274
8 5 Reaction-Yield-Detected ESR 274
851 Microwave-power Dependence for a Micellar System 275
852 Time-resolved RYDESR and Dynamics of Radical Pair 277
853 Micelle Dynamics Studied by Pulse-RYDESR 281
8 6 Control of Chemical Reactions by Spin Manipulation 283
861 Isotope Enrichment with Microwave 284
862 Reaction Control for a General Case 286
8 7 In Conclusion 286
References 287
Index 291
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| illustrated | Illustrated |
| indexdate | 2024-07-09T18:32:29Z |
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| isbn | 0471328367 4062091801 |
| language | English |
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| physical | XIII, 297 S. graph. Darst. |
| publishDate | 1998 |
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| publisher | Kodansha [u.a.] |
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| spelling | Dynamic spin chemistry magnetic controls and spin dynamics of chemical reactions ed. by Saburo Nagakura ... Tokyo Kodansha [u.a.] 1998 XIII, 297 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Magnétisme nucléaire ram Magnétochimie ram Réactions chimiques ram Spin ram Chemical reactions Nuclear magnetism Nuclear spin Spin (DE-588)4125988-9 gnd rswk-swf Spin (DE-588)4125988-9 s DE-604 Nagakura, Saburo Sonstige oth HEBIS Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=008647022&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Dynamic spin chemistry magnetic controls and spin dynamics of chemical reactions Magnétisme nucléaire ram Magnétochimie ram Réactions chimiques ram Spin ram Chemical reactions Nuclear magnetism Nuclear spin Spin (DE-588)4125988-9 gnd |
| subject_GND | (DE-588)4125988-9 |
| title | Dynamic spin chemistry magnetic controls and spin dynamics of chemical reactions |
| title_auth | Dynamic spin chemistry magnetic controls and spin dynamics of chemical reactions |
| title_exact_search | Dynamic spin chemistry magnetic controls and spin dynamics of chemical reactions |
| title_full | Dynamic spin chemistry magnetic controls and spin dynamics of chemical reactions ed. by Saburo Nagakura ... |
| title_fullStr | Dynamic spin chemistry magnetic controls and spin dynamics of chemical reactions ed. by Saburo Nagakura ... |
| title_full_unstemmed | Dynamic spin chemistry magnetic controls and spin dynamics of chemical reactions ed. by Saburo Nagakura ... |
| title_short | Dynamic spin chemistry |
| title_sort | dynamic spin chemistry magnetic controls and spin dynamics of chemical reactions |
| title_sub | magnetic controls and spin dynamics of chemical reactions |
| topic | Magnétisme nucléaire ram Magnétochimie ram Réactions chimiques ram Spin ram Chemical reactions Nuclear magnetism Nuclear spin Spin (DE-588)4125988-9 gnd |
| topic_facet | Magnétisme nucléaire Magnétochimie Réactions chimiques Spin Chemical reactions Nuclear magnetism Nuclear spin |
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