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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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Rus Eng


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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2008, 4, 5—14.

Prediction of Mesomorphism, Synthesis and Studies of Disc-Like Crown-Substituted Phthalocyanines

O. B. Akopova1, N. M. Logacheva2, I. N. Senchikhin2, M. R. Kiselev2, V. E. Baulin3, A. Yu. Tchivadze2

Author affiliations
1Ivanovo State University, Nanomaterials Research Institute
153025 Ivanovo, Ermak Str., 39. 
2Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences,
Leninsky Ave, 31, 119991 Moscow, Russia
3Institute of Physiologically Active Substances RAS,
142432 Severniy proezd,1, Chernogolovka, Moskow Region, Russia

Calculation and analysis of molecular parameters (МР) phthalocyanine metallocomlexes (Сu, Cd, Co, La, Lu, Ru and Y), including crown ether fragments was carried out. It is established, that the given complexes are inclined to mesomorphism inherent to disc-like mesogenes.
Three (Сu, Cd and Co) from seven metallocomplexes are synthesized and thermotropic mesomorphism of individual compounds and their mixes with chiral nematic cholesterol diphenylate has been investigated. It was revealed, that copper and cobalt phthalocyanines possess latent mesomorphism. Convergence of prognostication results with experimental data amount to 83 %.

Keywords: prognostication of mesomorphism, synthesis, disc-like mesogens, latent mesomorphism, mixes with chiral mesogen, crown ethers, metals phthalocyaninates

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