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Sv. A. Syrbu^1,5, A. S. Antsyshkina², G. G. Sadikov², M. N. Rodnikova², M. R. Kiselev³, V. A. Burmistrov⁴, S. A. Kuvshinova⁴, A. A. Syrbu⁵

Author affiliations
¹Ivanovo State University,
Ermak 39, Ivanovo, 153025 Russia. 
E-mail: syrbue@yandex.ru
²Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences,
Leninskii pr., 31, Moscow, 119991 Russia
³Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences,
Leninskii pr., 31, Moscow, 119991 Russia
⁴ Ivanovo State University of Chemical Technology,
F. Engels pr., 7, Ivanovo, 153000 Russia
⁵ Ivanovo Institute of the State Fire Service,
Stroitelei pr. 33, Ivanovo, 153040 Russia

Abstract
The molecular packing in the crystalline phase of 4-(ω-hydroxy)octyloxy-4'-cyanazobenzene is studied by X-ray-structural analysis method. It is shown, that determined influence on the molecular packing is putting up H-bond of compete intermolecular interactions. Mesophase properties of the compound are studied by polarization thermomicroscopy and differential scanning calorimetry methods. The enantiotropic nematic phase presence is established.

Keywords: liquid crystals, H-bond, mesophase properties, X-ray-structural analysis, molecular packing in the crystalline phase, polarization thermomicroscopy, differential scanning calorimetry