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
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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.
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Keywords:
- Benzothiazole,
- Schiff bases,
- Nematic,
- Smectic C,
- Liquid crystal
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