Electron spin echo envelope modulation by electronic spin-spin interactions in radical pairs undergoing electron transfer

被引：6
作者：
Jeschke, G
Bittl, R
机构：
[1] Tech Univ Berlin, Max Volmer Inst Biophys Chem & Biochem, D-10623 Berlin, Germany
[2] Max Planck Inst Polymerforsch, D-55021 Mainz, Germany
来源：
CHEMICAL PHYSICS LETTERS | 1998年 / 294卷 / 4-5期
关键词：
D O I：
10.1016/S0009-2614(98)00883-5
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Electron spin echo envelope modulation caused by the electronic spin-spin interaction is investigated for the case of a light-induced radical pair undergoing secondary electron transfer. Analytical expressions reveal contributions of both the primary and secondary radical pair to the out-of-phase component of the signal, while only the secondary radical pair contributes to the in-phase component. Spectra exhibit lifetime broadening for the primary pair and dispersive contributions for the secondary pair, but no frequency shifts. Numerical calculations illustrate the dependence of the spectra on the electron transfer rate and on the delay between laser and microwave pulses. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：323 / 331
页数：9
相关论文
共 19 条
[1]   Pulsed EPR study of spin-coupled radical pairs in photosynthetic reaction centers: Measurement of the distance between P-700(center dot+) and A(1)(center dot-) in photosystem I and between P-865(center dot+) and Q(A)(center dot-) in bacterial reaction centers [J].
Bittl, R ;
Zech, SG .
JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (08) :1429-1436
[2]   INVESTIGATIONS OF A NONRANDOM NUMERICAL-METHOD FOR MULTIDIMENSIONAL INTEGRATION [J].
CHENG, VB ;
SUZUKAWA, HH ;
WOLFSBERG, M .
JOURNAL OF CHEMICAL PHYSICS, 1973, 59 (08) :3992-3999
[3]   Electron spin echo of spin-polarised radical pairs in intact and quinone-reconstituted plant photosystem I reaction centres [J].
Dzuba, SA ;
Hara, H ;
Kawamori, A ;
Iwaki, M ;
Itoh, S ;
Tsvetkov, YD .
CHEMICAL PHYSICS LETTERS, 1997, 264 (1-2) :238-244
[4]   ESEEM STUDY OF SPIN-SPIN INTERACTIONS IN SPIN-POLARIZED P(+)Q(A)(-) PAIRS IN THE PHOTOSYNTHETIC PURPLE BACTERIUM RHODOBACTER-SPHAEROIDES R26 [J].
DZUBA, SA ;
GAST, P ;
HOFF, AJ .
CHEMICAL PHYSICS LETTERS, 1995, 236 (06) :595-602
[5]   The distance between P680 and QA in Photosystem II determined by ESEEM spectroscopy [J].
Hara, H ;
Dzuba, SA ;
Kawamori, A ;
Akabori, K ;
Tomo, T ;
Satoh, K ;
Iwaki, M ;
Itoh, S .
BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS, 1997, 1322 (2-3) :77-85
[6]   Transfer of spin correlation between radical pairs in the initial steps of photosynthetic energy conversion [J].
Hore, PJ .
MOLECULAR PHYSICS, 1996, 89 (04) :1195-1202
[7]   Peculiarities of Free Induction and Primary Spin Echo Signals for Spin-Correlated Radical Pairs [J].
Salikhov, K. M. ;
Kandrashkin, Yu. E. ;
Salikhov, A. K. .
APPLIED MAGNETIC RESONANCE, 1992, 3 (01) :199-216
[8]   POLARIZATION TRANSFER EXPERIMENTS IN HIGH-RESOLUTION NMR-SPECTROSCOPY [J].
SORENSEN, OW .
PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY, 1989, 21 :503-569
[9]   New EPR methods for investigating photoprocesses with paramagnetic intermediates [J].
Stehlik, D ;
Mobius, K .
ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1997, 48 :745-784
[10]   ANISOTROPIC ELECTRON-SPIN POLARIZATION OF CORRELATED SPIN PAIRS IN PHOTOSYNTHETIC REACTION CENTERS [J].
STEHLIK, D ;
BOCK, CH ;
PETERSEN, J .
JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (04) :1612-1619
12