Thermally irreversible photochromic dithienylethenes

A lot of previously unknown derivatives of dithienylperfluorocyclopentene (DTPFCP) were synthesized. It was shown that 2, 2 ′ ‐dialkylsubstituted DTPFCP′S are phtochromes. The quantum yields of forward and backward photochemical reactions and spectral parameters of open and cyclic forms of the photo...

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Bibliographic Details
Published in:	International Journal of Photoenergy Vol. 1; no. 3; pp. 183 - 190
Main Authors:	Krayushkin, M. M., Uzhinov, B. M., Martynkin, A. Yu, Dzhavadov, D. L., Kalik, M. A., Ivanov, V. L., Stoyanovich, F. M., Uzhinova, L. D., Zolotarskaya, O. Yu
Format:	Journal Article
Language:	English
Published:	Hindawi Limited 01-01-1999
Online Access:	Get full text
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Summary:	A lot of previously unknown derivatives of dithienylperfluorocyclopentene (DTPFCP) were synthesized. It was shown that 2, 2 ′ ‐dialkylsubstituted DTPFCP′S are phtochromes. The quantum yields of forward and backward photochemical reactions and spectral parameters of open and cyclic forms of the photochromes synthesized were measured. An attempt to obtain fluorescing phtochromes by means of introduction of benzoxazolyl, benzthiazolyl and 1,2,4‐oxadiazolyl moieties in 5 and 5 ′ positions of DTPFCP failed; these compounds were synthesized but they do not fluoresce.
ISSN:	1110-662X 1687-529X
DOI:	10.1155/S1110662X9900032X