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Int. J. Mol. Sci. 2011, 12(5), 3182-3190; doi:10.3390/ijms12053182

Mesomorphic Properties of an Homologous Series of Thioalkyl-Terminated Azomesogens

Department of Chemistry, College of Education, Basrah University, P.O. Box 716, Basrah, Iraq
Received: 30 January 2011 / Revised: 21 March 2011 / Accepted: 25 April 2011 / Published: 16 May 2011
(This article belongs to the Section Biochemistry, Molecular Biology and Biophysics)
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A new homologous series (ten compounds) of 2-hydroxy azo compounds SRn (where n:1–10) were synthesized. Their structures were elucidated using spectroscopic techniques such as IR (Infrared), 1H-NMR as well as elemental analysis. Mesomorphic properties and phase transitions were studied using polarized hot stage optical microscopy and differential scanning calorimetry (DSC), and are discussed as a function of the number of carbon atoms in the thioalkyl chain. It has been found that all compounds in the series are pure nematogens.
Keywords: azo; terminal thioalkyl; Nematic azo; terminal thioalkyl; Nematic
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Al-Hamdani, U.J. Mesomorphic Properties of an Homologous Series of Thioalkyl-Terminated Azomesogens. Int. J. Mol. Sci. 2011, 12, 3182-3190.

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