TRIPLET ELECTRON-TRANSFER AND TIME-RESOLVED EPR - DETECTION OF THE RADICAL-PAIR STATE OF A COVALENTLY LINKED PORPHYRIN QUINONE

被引:43
作者
LENDZIAN, F
VONMALTZAN, B
机构
[1] Institut für Experimentalphysik, Freie Universität Berlin, W-1000 Berlin 33
关键词
D O I
10.1016/0009-2614(91)87139-3
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
Triplet electron transfer is observed in a covalently linked porphyrin-quinone in ethanol at temperatures between 160 and 130 K. Both, the primary porphyrin triplet state (T)P-Q and the radical pair (+P-Q-)T created by light-induced charge separation, are observed by time-resolved EPR. The latter is identified by its g factor and dipolar splitting.
引用
收藏
页码:191 / 197
页数:7
相关论文
共 43 条
  • [1] SOLVENT DEPENDENCE OF PHOTOCHEMICAL ELECTRON-TRANSFER RATES IN A COVALENTLY LINKED PORPHYRIN QUINONE MOLECULE
    ARCHER, MD
    GADZEKPO, VPY
    BOLTON, JR
    SCHMIDT, JA
    WEEDON, AC
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS II, 1986, 82 : 2305 - 2313
  • [2] BITTL R, 1985, SPRINGER SERIES CHEM, V42, P264
  • [3] MODEL REACTIONS IN PHOTOSYNTHESIS
    BOXER, SG
    [J]. BIOCHIMICA ET BIOPHYSICA ACTA, 1983, 726 (04) : 265 - 292
  • [4] LUMINESCENCE OF PORPHYRINS AND METALLOPORPHYRINS .11. ENERGY-TRANSFER IN ZINC-METAL-FREE PORPHYRIN DIMERS
    BROOKFIELD, RL
    ELLUL, H
    HARRIMAN, A
    PORTER, G
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS II, 1986, 82 : 219 - 233
  • [5] Connolly J.S., 1988, PHOTOINDUCED ELECT D, P303
  • [6] Fajer J., 1979, PORPHYRINS, V4, P197
  • [7] FINKH P, 1989, CHEM PHYS, V138, P1
  • [8] PI-CATION-RADICAL FORMATION FOLLOWING VISIBLE-LIGHT PHOTOLYSIS OF PORPHYRINS IN FROZEN SOLUTION USING ALKYL CHLORIDES OR QUINONES AS ELECTRON-ACCEPTORS
    GASYNA, Z
    BROWETT, WR
    STILLMAN, MJ
    [J]. INORGANIC CHEMISTRY, 1985, 24 (15) : 2440 - 2447
  • [9] SOLVENT EFFECTS IN ELECTRON SPIN RESONANCE SPECTRA
    GENDELL, J
    FRAENKEL, GK
    FREED, JH
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1962, 37 (12) : 2832 - &
  • [10] TIME-RESOLVED ELECTRON-PARAMAGNETIC-RES SPECTROSCOPY OF ELECTRON-SPIN POLARIZED ZNTPP TRIPLETS ORIENTED IN A LIQUID-CRYSTAL
    GONEN, O
    LEVANON, H
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1985, 89 (09) : 1637 - 1643