A new type of liquid crystal involving hydrogen bonding: single crystal X-ray structure characterization and properties of the liquid crystal
A new liquid crystal involving hydrogen bonding between 4-hexyloxybenzoic acid and 4-octyloxylphenylethynylpyridine has been investigated by DSC, polarizing optical microscopy and X-ray diffraction. The mesogen shows a nematic phase and an unknown liquid crystalline phase. The liquid crystal crystallizes with a triclinic space group P-1 with the parameters: a = 8.879(2)Å, b = 10.137(2)Å, c = 17.629(4)Å; α = 104.16(3)°, = 95.47(3)°, = 101.48(3)°; V = 1490.3(6)Å3; Z = 2; F(000) = 572; = 0.076 mm-1; (MoKα) = 0.71073 Å; final R1 = 0.0435. The complex is formed by strong intermolecular hydrogen bonding.
Document Type: Special Article
Publication date: 01 December 2002
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