Mesomorphic behavior of new azomethine liquid crystals having terminal iodo group |
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| Authors: | Sie-Tiong Ha Teck-Leong Leea Guan-Yeow Yeapb Masato M.Itoc Ayumu Saitoc Masaaki Watanabec a |
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| Affiliation: | a Department of Chemical Science, Faculty of Science, Universiti Tunku Abdul Rahman, Jln Universiti, Bandar Barat, 31900 Kampar, Perak, Malaysia;b Liquid Crystal Research Laboratory, School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia;c Faculty of Engineering, Soka University, 1-236 Tangi-cho, Hachioji, Tokyo 192-8577, Japan |
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| Abstract: | A series of azomethine esters,3-hydroxy-4-{[(4-iodophenyl)imino]methyl}phenyl alkanoates possessing even number of carbon atoms at the terminal alkanoyloxy chain(C_(n-1)H_(2n-1)COO-,n = 4,6,8,10,12,14) was synthesized.n-Butanoyloxy was found non-mesogenic,whilst n-hexanoyloxy to n-tetradecanoyloxy exhibited enantiotropic smectic A phase with fan-shaped texture.It was found that the length of terminal alkanoyloxy chain influenced the mesomorphic properties. |
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| Keywords: | Liquid crystals Azomethine ester Enantiotropic Smectic A |
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