INTRAMOLECULAR PHOTOCHEMICAL ELECTRON-TRANSFER .6. BRIDGE AND SOLVENT DEPENDENCE OF ELECTRON-TRANSFER IN COVALENTLY LINKED PORPHYRIN PEPTIDE QUINONE COMPOUNDS

被引:41
|
作者
LIU, JY [1 ]
SCHMIDT, JA [1 ]
BOLTON, JR [1 ]
机构
[1] UNIV WESTERN ONTARIO,DEPT CHEM,PHOTOCHEM UNIT,LONDON N6A 5B7,ONTARIO,CANADA
来源
JOURNAL OF PHYSICAL CHEMISTRY | 1991年 / 95卷 / 18期
关键词
D O I
10.1021/j100171a035
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
Intramolecular electron transfer (ET) rate constants k(ET) for three covalently linked porphyrin-peptide-quinone compounds have been measured in several solvents. The results show that not only "through-bridge", but also "through-solvent" interactions play important roles in the intramolecular ET process. This latter effect is deduced from the observation that aromatic groups, as both side groups in the bridge and in the solvent, appear to induce a significant increase in the ET rate.
引用
收藏
页码:6924 / 6927
页数:4
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