Citation: Sie Tiong Ha, Teck Ming Koh, Siew Teng Ong, Yasodha Sivasothy. Synthesis and mesomorphic behavior of benzothiazole-based liquid crystals having terminal methoxyl group[J]. Chinese Chemical Letters, ;2009, 20(12): 1449-1452. doi: 10.1016/j.cclet.2009.06.023 shu

Synthesis and mesomorphic behavior of benzothiazole-based liquid crystals having terminal methoxyl group

a Department of Chemical Science, Faculty of Science, Engineering & Technology, Universiti Tunku Abdul Rahman, Jln Universiti, Bandar Barat, 31900 Kampar, Perak, Malaysia;
b Department of Science, Faculty of Engineering & Science, Universiti Tunku Abdul Rahman, Jln Genting Klang, Setapak, 53300 Kuala Lumpur, Malaysia;
c Chemistry Department, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia

Received Date: 11 May 2009

Fund Project: The author (S.T.Ha) would like to thank Universiti Tunku Abdul Rahman (UTAR) for the research facilities and financial support (No.6202/K06)and the Malaysian Toray Science Foundation (No.4359/000) for funding this project.T.M.Koh would like to acknowledge UTAR for the award of the research and teaching assistantships.

A homologous series of benzothiazole derivatives, 6-methoxy-2-(4-alkanoyloxybenzylidenamino)benzothiazoles, were synthesized and characterized using FT-IR, ¹H and ¹³C NMR, mass spectrometry and elemental analysis.Enantiotropic nematic phase was observed throughout the entire series.Smectic C phase only emerged from the decanoyloxy derivative onwards.The terminal methoxyl group and the ester linkage influenced the mesomorphic behavior of the present series.
- Benzothiazole,
- Schiff bases,
- Nematic,
- Smectic C,
- Liquid crystal
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