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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., 2015, 15 (2), 19—25.

Synthesis and Investigation of Spectral and Liquid Crystal Properties of the Phthalocyanine Derivative with Benzotriazolyl and Sulfonaphtoxy-Groups and Its Erbium Complex

N. V. Bumbina1, О. B. Аkopova1, N. V.Usol'tseva1, S. А. Znoiko2, О. N. Zubkova2, V. Е. Maizlish2, G. P. Shaposhnikov2

Author affiliations
1Nanomaterials Research Institute, Ivanovo State University,
39 Ermak St., Ivanovo, 153025, Russia
2Research Institute of Macroheterocyclic compounds, Ivanovo State University of Chemistry and Technology,
7 Sheremetievsky Ave., Ivanovo, 153000, Russia

The paper presents the research on the phthalocyanine erbium complex and its metal-free analogue containing on the periphery the 1-benzotriazole and 1,6-disulfo-2-naphthol fragments. These compounds are promising materials for nanotechnology. Their design and the forecast of possibility to display mesomorphic state are made. It is found that they are able to form columnar mesomorphism. To verify the results of the forecast, tetra-4-(1-benzotriazolyl)tetra-5-(1,6-disulfo-
2-naphthoxy)phthalocyanine erbium complex was synthesized by metallization of the corresponding metal-free phthalocyanine derivative. Mesomorphism of the obtained compounds was studied by the polarizing optical microscopy. Spectral properties were also investigated.

Keywords: phthalocyanine derivatives, molecular parameters, prognosis of mesomorphism, synthesis, spectral properties

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