CHARGE-TRANSFER DYNAMICS OF PORPHYRIN PHTHALOCYANINE HETERODIMERS IN HYBRID SOL-GEL FILMS

被引：15

作者：

FOURNIER, T ^{[1
]}

TRANTHI, TH ^{[1
]}

HERLET, N ^{[1
]}

SANCHEZ, C ^{[1
]}

机构：

[1] UNIV P & M CURIE,URA 1466,F-75252 PARIS 05,FRANCE

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 208卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(93)80084-3

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：

Photoinduced charge transfer (CT) between porphyrins and phthalocyanines embedded in mixed siloxane-oxide coatings, prepared from the hydrolysis-condensation process of dimethylethyldiethoxysilane and Zr(OR)4 alkoxides, is reported for the first time. CT is photoinduced by exciting with visible light a strongly coupled, diamagnetic heterodimer of porphyrin and phthalocyanine. Replacing the diamagnetic phthalocyanine by a paramagnetic compound favours intersystem crossing, which leads to the formation of the ''tridoublet-quartet'' states of the dimer. This behaviour can be reproduced from the liquid phase to the solid state composed of sol-gel films, allowing us to explain the discrepancy with the organized Langmuir-Blodgett films data.

引用

页码：101 / 105

页数：5

共 20 条

[1] ASSOCIATION OF COBALT(II) TETRASULFOPHTHALOCYANINE [J].