Peculiarities of the crystal structure of modified banana-shaped mesogen

DOI: 10.1134/S1063774510050238

Authors: M. A. Zharova (Ivanovo State University) , N. V. Usol'Tseva (Ivanovo State University) , G. Ungar (University of Sheffield) , I. V. Kholodkov (Ivanovo State University of Chemistry and Technology) , V. V. Rybkin (Ivanovo State University of Chemistry and Technology)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Crystallography Reports , VOL 55 (5) , PAGES 840 - 844

State: Published (Approved)
Published: April 2010

Abstract: The structure and phase behavior of an achiral banana-shaped compound-bis-{3,4,5-tri[4-(4-n-nonyloxybenzoyloxy)] benzoylamino}-1,3-phenylene (I)-have been investigated. This compound exhibits an enantiotropic high-temperature chiral mesophase; upon cooling it successively passes to the crystalline (Cr) phases: Crα (281.0-176.0°C), Crβ (175.0-72.0°C), and Crγ; (71.0-40.0°C) (their temperature ranges of existence are indicated). The surface topology and results of linear measurements along the cross sections of certain portions of thin films of compound I in the Cr γ phase clearly prove the effect of the preserved chirality of the previous liquid-crystal phase in the crystalline state.

Journal Keywords: Atomic Force Microscopy Image; Crystallography Report; Film Sample; Surface Relief; Linear Measurement

Subject Areas: Chemistry, Materials


Instruments: I22-Small angle scattering & Diffraction

Added On: 30/09/2010 08:36

Discipline Tags:

Chemistry Materials Science

Technical Tags:

Scattering Small Angle X-ray Scattering (SAXS)