Discotic liquid crystals of transition metal complexes 37: a thermotropic cubic mesophase having Pn3m symmetry exhibited by phthalocyanine-based derivatives
作者： Masahiro Ichihara , Ayumi Suzuki , Kazuaki Hatsusaka , Kazuchika Ohta
DOI: 10.1080/02678290701284238
关键词: Materials science 、 Organic chemistry 、 Crystallography 、 Liquid crystal 、 Discotic liquid crystal 、 Alkoxy group 、 Transition metal 、 Mesophase 、 Copper 、 Phthalocyanine 、 Thermotropic crystal
摘要: In order to obtain discotic compounds exhibiting a cubic mesophase, we synthesised two new series of compounds, 2,3,9,10,16,17,23,24‐octakis(4‐alkoxyphenoxy)phthalocyaninato copper(II) complexes, referred as (C n OPhO)8PcCu (1, n = 10, 12, 14), and 2,3,9,10,16,17,23,24‐octakis(3,4,5‐trialkoxyphenoxy)phthalocyaninato [(C O)3PhO]8PcCu (3, which both contain octakis(phenoxy)phthalocyaninato the central core eight or twenty‐four long alkoxy chains in periphery, respectively. Their mesomorphic properties were compared alongside those previously reported 2,3,9,10,16,17,23,24‐octakis(3,4‐dialkoxyphenoxy)phthalocyaninato [(CnO)2PhO]8PcCu (2, 14). The phase transition behaviour these (1–3) varies considerably with number peripheral chains. eight‐chain‐substituted (CnOPhO)8PcCu complexes (1) exhibited only one hexagonal columnar (Colh) mes...
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