ANALYTICAL THEORY OF ELECTRON-SPIN-ECHO MODULATIONS IN CORRELATED RADICAL PAIRS
A theoretical treatment of the effects of electron-electron coupling on electron-spin-echo envelope modulation (ESEEM) spectra of spin-correlated radical pairs (species which occur as intermediates in a variety of chemical reactions and in the initial steps of photosynthetic solar energy conversion)...
| Κύριοι συγγραφείς: | , |
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| Μορφή: | Journal article |
| Γλώσσα: | English |
| Έκδοση: |
1995
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| _version_ | 1826299184268967936 |
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| author | Zwanenburg, G Hore, P |
| author_facet | Zwanenburg, G Hore, P |
| author_sort | Zwanenburg, G |
| collection | OXFORD |
| description | A theoretical treatment of the effects of electron-electron coupling on electron-spin-echo envelope modulation (ESEEM) spectra of spin-correlated radical pairs (species which occur as intermediates in a variety of chemical reactions and in the initial steps of photosynthetic solar energy conversion) is presented. The exchange and dipolar interactions between the two unpaired electrons in the radical pair are found to have no effect on the ESEEM spectra if their strength is small compared to the difference in EPR frequencies of the two electrons. However, using perturbation theory, it is shown that strong electron-electron coupling causes shifts in the ESEEM frequencies and changes in modulation depths that are characteristic of the strength of the electronic interactions. The paper concludes with a discussion of ESEEM effects originating from the electron-electron zero-quantum coherence with which spin-correlated radical pairs are formed. © 1995 Academic Press. All rights reserved. |
| first_indexed | 2024-03-07T04:58:02Z |
| format | Journal article |
| id | oxford-uuid:d7486a9b-693e-4f1e-a1ea-4095ee1cde54 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:58:02Z |
| publishDate | 1995 |
| record_format | dspace |
| spelling | oxford-uuid:d7486a9b-693e-4f1e-a1ea-4095ee1cde542022-03-27T08:39:57ZANALYTICAL THEORY OF ELECTRON-SPIN-ECHO MODULATIONS IN CORRELATED RADICAL PAIRSJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d7486a9b-693e-4f1e-a1ea-4095ee1cde54EnglishSymplectic Elements at Oxford1995Zwanenburg, GHore, PA theoretical treatment of the effects of electron-electron coupling on electron-spin-echo envelope modulation (ESEEM) spectra of spin-correlated radical pairs (species which occur as intermediates in a variety of chemical reactions and in the initial steps of photosynthetic solar energy conversion) is presented. The exchange and dipolar interactions between the two unpaired electrons in the radical pair are found to have no effect on the ESEEM spectra if their strength is small compared to the difference in EPR frequencies of the two electrons. However, using perturbation theory, it is shown that strong electron-electron coupling causes shifts in the ESEEM frequencies and changes in modulation depths that are characteristic of the strength of the electronic interactions. The paper concludes with a discussion of ESEEM effects originating from the electron-electron zero-quantum coherence with which spin-correlated radical pairs are formed. © 1995 Academic Press. All rights reserved. |
| spellingShingle | Zwanenburg, G Hore, P ANALYTICAL THEORY OF ELECTRON-SPIN-ECHO MODULATIONS IN CORRELATED RADICAL PAIRS |
| title | ANALYTICAL THEORY OF ELECTRON-SPIN-ECHO MODULATIONS IN CORRELATED RADICAL PAIRS |
| title_full | ANALYTICAL THEORY OF ELECTRON-SPIN-ECHO MODULATIONS IN CORRELATED RADICAL PAIRS |
| title_fullStr | ANALYTICAL THEORY OF ELECTRON-SPIN-ECHO MODULATIONS IN CORRELATED RADICAL PAIRS |
| title_full_unstemmed | ANALYTICAL THEORY OF ELECTRON-SPIN-ECHO MODULATIONS IN CORRELATED RADICAL PAIRS |
| title_short | ANALYTICAL THEORY OF ELECTRON-SPIN-ECHO MODULATIONS IN CORRELATED RADICAL PAIRS |
| title_sort | analytical theory of electron spin echo modulations in correlated radical pairs |
| work_keys_str_mv | AT zwanenburgg analyticaltheoryofelectronspinechomodulationsincorrelatedradicalpairs AT horep analyticaltheoryofelectronspinechomodulationsincorrelatedradicalpairs |