International Journal of Photoenergy

International Journal of Photoenergy / 1999 / Article

Open Access

Volume 1 |Article ID 628965 | https://doi.org/10.1155/S1110662X9900032X

M. M. Krayushkin, B. M. Uzhinov, A. Yu. Martynkin, D. L. Dzhavadov, M. A. Kalik, V. L. Ivanov, F. M. Stoyanovich, L. D. Uzhinova, O. Yu. Zolotarskaya, "Thermally irreversible photochromic dithienylethenes", International Journal of Photoenergy, vol. 1, Article ID 628965, 8 pages, 1999. https://doi.org/10.1155/S1110662X9900032X

Thermally irreversible photochromic dithienylethenes

Abstract

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.

Copyright © 1999 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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