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Proceedings Paper

Influence of substitution on the T-T absorption spectra in furocoumarins
Author(s): N. G. Bryantseva
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Paper Abstract

The present paper deals with compounds called photosensitizers, namely, psoralen, 3,4-phenyl-4',5'- cyclohexylpsoralen, 4'-methyl-3,4-cycloheptyl psoralen, 4',5'-dimethyl-3,4-cyclohexyl psoralen (fig. 1). The absorption spectra from excited triplets states were investigated. The computed triplet-triplet absorption spectra of research compounds have been determined using INDO method. The experimental triplet-triplet absorption spectra have been obtained using the technique of laser flash photolysis in ethanol. The compare of computed and experimental data is shows that the computed second band wavelenght throughout agree very well (0,5-6 nm) with experimental data.

Paper Details

Date Published: 1 November 2006
PDF: 6 pages
Proc. SPIE 6522, Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics, 652201 (1 November 2006); doi: 10.1117/12.722440
Show Author Affiliations
N. G. Bryantseva, Tomsk State Univ. (Russia)


Published in SPIE Proceedings Vol. 6522:
Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics

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