SYNTHESIS AND INTRAMOLECULAR ELECTRON-TRANSFER REACTION OF DISTANCE-FIXED QUINONE-LINKED PORPHYRINS

被引：21

作者：

OSUKA, A ^{[1
]}

ZHANG, RP ^{[1
]}

MARUYAMA, K ^{[1
]}

YAMAZAKI, I ^{[1
]}

NISHIMURA, Y ^{[1
]}

机构：

[1] HOKKAIDO UNIV, FAC ENGN, DEPT CHEM PROC ENGN, SAPPORO, HOKKAIDO 060, JAPAN

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1992年 / 65卷 / 10期

关键词：

D O I：

10.1246/bcsj.65.2807

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Synthesis is described of a series of distance-fixed quinone-linked porphyrins in which electron affinity of the attached quinone is systematically changed. The fluorescence lifetimes of the porphyrin chromophore in these model compounds were shortened due to the intramolecular electron transfer to the attached quinone. The rates of the charge separation between the singlet excited state of the porphyrin and the quinone were determined on the basis of these shortened fluorescence lifetimes and were plotted against the free energy changes associated with the charge separation. Up to ca. 1.54 eV exothermic reaction, the rates of the charge separation were found to still increase.

引用

页码：2807 / 2813

页数：7

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