PHOTOCHEMICAL-REACTIONS OF GADOLINIUM(III) TETRAPHENYLPORPHYRIN IN TOLUENE SOLUTION CONTAINING AN ELECTRON-ACCEPTOR OR DONOR

被引：7

作者：

RADZKI, S ^{[1
]}

GIANNOTTI, C ^{[1
]}

机构：

[1] CNRS,INST CHIM SUBST NAT,F-91198 GIF SUR YVETTE,FRANCE

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1994年 / 80卷 / 1-3期

关键词：

D O I：

10.1016/1010-6030(93)01027-Y

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：

In this paper we have studied by absorption spectroscopy the course of the steady state photolysis of gadolinium(III) complex with 5,10,15,20-tetraphenylporphyrin. The results have been compared with the photolysis of free base tetraphenylporphyrin. Irradiation of GdTPP(acac) and H2TPP (H2TPP = tetraphenylporphyrin; Hacac = acetylacetone) with visible light, in the presence of triethylamine as an electron donor, leads to their photoreduction. Formation of the gadolinium tetraphenylchlorin complex and tetraphenylchlorin is observed. The process of irradiation in the presence of CCl4 as an electron acceptor has different pathways for GdTPP(acac) and H2TPP. The gadolinium complex is mono oxidized, giving rise to the pi+ radical cation while, for unmetallated porphyrin, dication H4(TPP)2+ formation is observed.

引用

页码：257 / 264

页数：8

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