Formation and study of thin films of tert-butyl-substituted thiopyrylium dyes

Formation and study of thin films of tert-butyl-substituted thiopyrylium dyes Full article

Journal

Russian Chemical Bulletin
ISSN: 1066-5285 , E-ISSN: 1573-9171

Output data

Year: 1998, Volume: 47, Number: 7, Pages: 1306-1312 Pages count : 7 DOI: 10.1007/BF02495553

Tags

thiopyrylium dyes; tert-butyl substituents; thin films; electronic absorption spectra; structure of layers; intermolecular interactions

Authors

Shelkovnikov V.V. ¹ , Gerasimova T.N. ¹ , Ivanova Z.M. ¹ , Orlova N.A. ¹

Affiliations

1	Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, 9 prosp. Lavrent'eva, 630090, Novosibirsk, Russian Federation

The formation of thin films of symmetrical and asymmetrical thiopyrylium dyes, containing tert-butyl substituents, on glass supports was studied. The films were deposited by centrifugation of solutions of individual dyes or dye-polymer [poly(methyl methacrylate)] compositions. The dye : polymer ratios necessary for the formation of WORM recording layers based on these dyes were determined. The use of a polymeric matrix increases the film thickness and optical density but decreases its reflection power and does not allow crystallization of the dye on the support to be completely avoided. An increase in the number of tert-butyl groups in the dye molecule prevents crystallization of the recording layer in the case of symmetrical dye molecules, but does not prevent it for asymmetrical molecules. The data obtained were interpreted in terms of geometrical views on the interaction of dye molecules in thin layers.

Shelkovnikov V.V. , Gerasimova T.N. , Ivanova Z.M. , Orlova N.A.
Formation and study of thin films of tert-butyl-substituted thiopyrylium dyes
Russian Chemical Bulletin. 1998. V.47. N7. P.1306-1312. DOI: 10.1007/BF02495553 WOS Scopus РИНЦ

Published print:

Jul 1, 1998

Web of science	WOS:000075335500012
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