SINGLET EXCITATION-ENERGY TRANSFER IN CONFORMATIONALLY RESTRICTED ZINC FREE-BASE HYBRID DIPORPHYRINS

被引：109

作者：

OSUKA, A ^{[1
]}

MARUYAMA, K ^{[1
]}

YAMAZAKI, I ^{[1
]}

TAMAI, N ^{[1
]}

机构：

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

来源：

CHEMICAL PHYSICS LETTERS | 1990年 / 165卷 / 05期

关键词：

D O I：

10.1016/0009-2614(90)85447-K

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：

A series of conformationally restricted zinc-free-base hybrid diporphyrins has been synthesized. Efficient intramolecular singlet-singlet energy transfer from the zinc prophyrin to the free-base porphyrin in these molecules has been studied by picosecond time-resolved fluorescence spectroscopy. The dipole-dipole Förster mechanism is proposed to be dominant in the energy transfer process on the basis of the geometry dependence of its rate. However, for shorter separations, the Dexter exchange mechanism may open an additional channel for the energy transfer. © 1990.

引用

页码：392 / 396

页数：5

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