Solution structure and preferred orientation of 3,7-dichloro-10H-phenothiazine dissolved in nematic liquid crystal.

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概要

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• <SUP>1</SUP>H NMR spectrum of the title compound was measured in a nematic liquid crystal ZLI1167 and analyzed utilizing modified versions of the LAOCN program. Direct couplings obtained were interpreted on the basis of a folded structure of tricyclic framework. The results show that the dihedral angle between the two benzene rings is 153.1±2.0° and the angle of S···N–H is 170.9±6.7°. Hence a "H-intra" conformation is dominant in a mobile state dissolved in the nematic liquid crystal. The preferred orientation of this molecule in ZLI1167 is discussed by comparing the results with those of the dibromo analogue reported previously and by comparing the principal axes of the order tensor with those of the moment of inertia. The chlorine and bromine atoms are supposed to exert a special steric effect on the ordering of these molecules.

• 公益社団法人 日本化学会の論文

著者

• Fujiwara Hideaki

  Faculty Of Medicine Osaka University

• SASAKI YOSHIO

  Faculty of Pharmaceutical Sciences Osaka University

• Watanabe Masayuki

  Faculty Of Engineering Kyushu Institute Of Technology

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