The Structure of ?,?-bis(4-cyanobiphenyl-4?-oxy)heptane
- 1 January 1991
- journal article
- liquid crystal
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 195 (1) , 179-184
- https://doi.org/10.1080/00268949108030900
Abstract
The crystal structure of α,ω-bis(4-cyanobiphenyl-4′-oxy)heptane has been determined from single crystal X-ray diffractometry. The structure is monoclinic, space group P21/n with four molecules per unit cell. The cell parameters are a = 33.737(4), b = 11.084(2), c = 7.106(1) Å, β = 94.01(3)°. The flexible spacer is in the all trans-conformation and the long axes of the two mesogen units make an angle of 34° with each other. No indication of grouping between mesogen units belonging to different molecules is detected in the packing analysis.Keywords
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