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Photochromism and the spectral properties of bispiroanthro-bis-oxazine

Authors :
I. Yu. Sychev
V. S. Marevtsev
V. G. Luchina
Yu. D. Khamchukov
Cherkashin Mikhail I
T. Ya. Vlasenko
Source :
Bulletin of the Russian Academy of Sciences Division of Chemical Science. 41:2152-2157
Publication Year :
1992
Publisher :
Springer Science and Business Media LLC, 1992.

Abstract

The spectral and photochromic properties of bispiroanthro-bis-oxazine (bis-SAO) in toluene, DMF, and polystyrene films were investigated in the 77–300 K interval. It is shown that the long-wave part of the absorption spectrum of the starting form of the molecule is formed by three-electron transitions localized in the anthro-bis-oxazine fragment. The directions of the oscillators of these transitions relative to the nuclear. backbone of the molecule are proposed on the basis of luminescence polarization data. It is proposed that the photochromic properties of the solutions are determined by the existence of bis-SAO molecules in dimer form.

Details

ISSN :
15739171 and 10635211
Volume :
41
Database :
OpenAIRE
Journal :
Bulletin of the Russian Academy of Sciences Division of Chemical Science
Accession number :
edsair.doi...........5f4797051c7a131042be25e6323c7259
Full Text :
https://doi.org/10.1007/bf01150737