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Liquid Crystals and their Application
Russian Journal

Zhidkie kristally i ikh prakticheskoe ispol'zovanie

Жидкие кристаллы и их практическое использование

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Journal



Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2013, 2, 80—89.





Influence of Molecular Structure of Unsymmetrical «Push – Pull» Phthalocyanines on Their Optical Properties in Solutions and Thin Films



I. Yu. Luk'yanov1, N. V. Usol'tseva1, N. E. Galanin2, M. V. Korel'chuk2, G. P. Shaposhnikov2, S. G. Yudin3

Author affiliations
1Ivanovo State University, Nanomaterials Research Institute
Russia, 153025, Ivanovo, Ermak street, 39. 
E-mail: lukianov.ivan@gmail.com
2Ivanovo State University of Chemistry and Technology Institute of Macroheterocycles.
Russia, 153000 Ivanovo, Av. F. Engel’s, 7
3A. V. Shubnikov Institute of Crystallography of Russian Academy of Sciences,119333, Russia,Moscow, Leninskiy Prospect, 59

Abstract
The influence of molecular structure of three unsymmetrically substituted phthalocyanine derivatives with 3,6-dioctyloxyphthalonitrile and 3,4,5,6-tetrachlorphthalonitrile fragments as well as their metal complexes with holmium, on luminescent properties in solutions and Langmuir — Blodgett (PLB) films was investigated. Comparison of absorption spectra of these compounds in thin films and chloroform solutions suggests that the compounds exhibit a greater tendency to association in films than in solutions. The study of luminescence spectra of phthalocyanine derivatives showed that the intensity of luminescence of the studied compounds in toluene solutions higher than in chloroform. Addition into solution of C60 fullerene reduces intensity of luminescence.

Keywords: Langmuir — Blodgett films, asymmetrical phthalocyanine derivatives, molecular dynamics





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