Effect of oligomerization on the photochemical properties of silicon octaphenoxyphthalocyanine

被引：12

作者：

Maree, MD ^{[1
]}

Nyokong, T ^{[1
]}

机构：

[1] Rhodes Univ, Dept Chem, ZA-6140 Grahamstown, South Africa

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2001年 / 142卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

silicon phthalocyanine; phototransformation; singlet oxygen; quantum yields;

D O I：

10.1016/S1010-6030(01)00485-3

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：

The photochemical properties of silicon octaphenoxyphthalocyanines (SiOPPc) oligomerized were studied in dimethylsulfoxide (DMSO) solutions. Oligomers containing 2-5 and 9 SiOPPc rings linked with terephthalate linkages were synthesized. Singlet oxygen quantum yields were found to be in the range 0.11-0.34, and increased with the number of rings up to five rings, a decrease in the quantum yield was observed for nine rings. This is explained in terms of the high aggregation of the oligomer containing nine rings. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：39 / 46

页数：8

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