A group of (E,E)-1,4-diarylbuta-1,3-dienes, substituted in the para-position of one aryl ring by an alkoxy-group and in the para-position of the other aryl group by a cyano- or halogeno-group have been synthesised. The compounds are mesogenic and their physical properties make them suitable for liquid crystal display devices when mixed with known liquid crystal materials.
R. Brettle, D. A. Dunmur, N. J. Hindley and C. M. Marson, J. Chem. Soc., Perkin Trans. 1, 1993, 775 DOI: 10.1039/P19930000775
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