Spectral properties and structure of unsymmetrical diarylethenes based on thiazole ring with hydrogen at the reactive carbon

Spectral properties and structure of unsymmetrical diarylethenes based on thiazole ring with hydrogen at the reactive carbon Full article

Journal

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
ISSN: 1386-1425 , E-ISSN: 1873-3557

Output data

Year: 2018, Volume: 203, Pages: 348-356 Pages count : 9 DOI: 10.1016/j.saa.2018.05.097

Authors

Lvov Andrey G. ¹ , Alexeeva Anna M. ² , Lvova Evgeniya A. ¹ , Krayushkin Mikhail M. ¹ , Shirinian Valerii Z. ¹

Affiliations

1	N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47, Leninsky prosp., 119991 Moscow, Russian Federation
2	Mendeleev University of Chemical Technology of Russia, Miusskaya Sq., 9, Moscow 125047, Russian Federation

Six new photoactive unsymmetrical diarylethenes bearing thiazole ring with hydrogen at the reactive carbon atom have been synthesized. Their structures have been studied by DFT calculations and X-ray crystallography. All compounds undergo irreversible photochemical transformations under irradiation with ultraviolet light, proceeding through the photocyclization stage. It has been found that only some normal (thiophene, imidazole and pyrazole derivatives) and inverse type (oxazole derivative) diarylethenes form colored photoinduced isomers under UV. In polar acetonitrile these intermediates show relatively fast irreversible thermal reaction, while in nonpolar toluene slow cycloreversion to initial diarylethenes is the predominant process of these species.

Lvov A.G. , Alexeeva A.M. , Lvova E.A. , Krayushkin M.M. , Shirinian V.Z.
Spectral properties and structure of unsymmetrical diarylethenes based on thiazole ring with hydrogen at the reactive carbon
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 2018. V.203. P.348-356. DOI: 10.1016/j.saa.2018.05.097 WOS Scopus OpenAlex

Web of science:	WOS:000437816000043
Scopus:	2-s2.0-85048014612
OpenAlex:	W2806615424

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