Spectroscopic properties of Sn(IV) tetrapyridyl and tetramethylpyridinium porphyrins in solution and in sol-gel matrices

被引：15
作者：
Delmarre, D [1 ]
Veret-Lemarinier, AV [1 ]
Bied-Charreton, C [1 ]
机构：
[1] Ecole Normale Super Cachan, URA 1906 CNRS, Lab Photophys & Photochim Supramol & Macromol, F-94235 Cachan, France
来源：
JOURNAL OF LUMINESCENCE | 1999年 / 82卷 / 01期
关键词：
Sn(IV) porphyrins; absorption and fluorescence spectroscopies; sol-gel matrices; maximum entropy method (MEM);
D O I：
10.1016/S0022-2313(99)00016-2
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We have studied the influence of different solvents and of the pH on the spectroscopic properties of Sn(IV)tetrapyridyl and tetramethylpyridinium porphyrins. Then these porphyrins were immobilized in sol-gel matrices. The spectroscopic properties of the immobilized porphyrins are dependent on the composition of the matrix and on its polarity. Evidence for the presence of a distribution of environments for the porphyrin in the matrix are demonstrated using fluorescence spectroscopy and maximum entropy method (MEM). (C) 1999 Elsevier Science B.V. All rights reserved.
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收藏
页码：57 / 67
页数：11
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