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

Authors
Delmarre, D Veret-Lemarinier, AV Bied-Charreton, C
Citation
D. Delmarre et al., Spectroscopic properties of Sn(IV) tetrapyridyl and tetramethylpyridinium porphyrins in solution and in sol-gel matrices, J LUMINESC, 82(1), 1999, pp. 57-67
Citations number
34
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF LUMINESCENCE
ISSN journal
00222313 → ACNP
Volume
82
Issue
1
Year of publication
1999
Pages
57 - 67
Database
ISI
SICI code
0022-2313(199907)82:1<57:SPOSTA>2.0.ZU;2-3
Abstract
We have studied the influence of different solvents and of the pH on the sp ectroscopic properties of Sn(IV)tetrapyridyl and tetramethylpyridinium porp hyrins. Then these porphyrins were immobilized in sol-gel matrices. The spe ctroscopic properties of the immobilized porphyrins are dependent on the co mposition of the matrix and on its polarity. Evidence for the presence of a distribution of environments for the porphyrin in the matrix are demonstra ted using fluorescence spectroscopy and maximum entropy method (MEM). (C) 1 999 Elsevier Science B.V. All rights reserved.