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Molecular Crystals and Liquid Crystals Volume 708, 2020 - Issue 1
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Liquid Crystals

Synthesis and liquid crystalline behavior of some twin compounds derived from quinolone derivatives

Jumbad H. Tommaa Department of Chemistry, College of Education for Pure Science, Ibn Al-Haitham, University of Baghdad, Baghdad, Iraq
,
Thaer S. Ghalia Department of Chemistry, College of Education for Pure Science, Ibn Al-Haitham, University of Baghdad, Baghdad, Iraq
&
Ammar H. Al-Dujailib Hamdi Mango Center for Scientific Research, University of Jordan, Amman, JordanCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0002-1759-8585
ORCID Icon
Pages 39-54 | Published online: 20 Jan 2021
 
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Abstract

The liquid crystal new twin hydrazone derivatives of quinolone have been synthesized by many steps procedure. The molecular structure of these compounds was confirmed by elemental analysis and FTIR, mass, 13CNMR and 1HNMR spectroscopy. The mesomorphic properties were studied by using differential scanning calorimetry (DSC) and polarized optical microscopy (POM). Almost of the synthesized compounds exhibited enantiotropic nematic phase. The mesomorphic behavior was found to be dependent on the geometry of the molecule, terminal and the central linkage group.

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