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S. A. Znoiko¹, A. V. Krivova¹, G. P. Shaposhnikov¹, G. A. Anan'eva², N. V. Zharnikova², N. V. Usol'tseva²

Author affiliations
¹Ivanovo State University of Chemistry and Technology, Institute of Macroheterocycles
153000 Ivanovo, Av. F. Engel’s, 7. 
E-mail: ttoc@isuct.ru
²Ivanovo State University, Nanomaterials Research Institute
153025 Ivanovo, Ermak Str., 39. 
E-mail: nv_usolseva@mail.ru

Abstract
This paper continues a series of works devoted to synthesis and investigation of mixed-substituted phthalocyanines which combined on their periphery benzotriazolyl and aryloxy groups. Eight new alkylsulfamoyl derivatives of tetrakis-4-(1-benzotriazolyl)tetrakis-5-[1(2)-naphthoxy]­phthalocyanines of copper and nickel were synthesized. Method of polarization microscopy revealed that copper phthalocyanines containing eight octadecyl or diethylsulfamoil fragments in 2-naphthoxy groups possess thermotropic mesomorphism.Besides, tetrakis-4-(1-benzotriazolyl)tetrakis-5-(1,6-di(octadecylsulfamoyl)-2-naphthoxy)phthalocyanine of copper forms lyomesophases both in polar and apolar organic solvents. Mesomorphic properties were also induced by introducing of four octadecylsulfamoyl groups in the non-mesogenic molecule of tetrakis-4-(1-benzotriazolyl)tetrakis-5-(1-naphthoxy)phthalocyanine of copper. Liquid crystalline properties were not observed in case of nickel phthalocyanines.

Keywords: synthesis, mesomorphism, substituted phthalocyanines