Synthesis, Spectroscopic Characterization and Powder XRD Study of 4-(5-(Ethylthio)-1,3,4-Oxadiazole-2-yl) Aniline
Emad Ghanem,
Sahar Al-Hariri,
Abeer Ghanem,
Lama Aouda
Issue:
Volume 3, Issue 5-1, October 2015
Pages:
1-6
Received:
25 November 2014
Accepted:
27 November 2014
Published:
27 December 2014
Abstract: In order to investigate the separation mechanism of liquid crystals stationary phases based on an oxadiazole moiety, new 1,3,4-oxadiazole derivative as side mesogenic arm in liquid crystals was prepared, and its structural spectroscopic data were studied in this paper. A powerful indication about the relationship between molecular structure and alignment properties is described. Such information is indispensable for the design and synthesis new liquid crystals stationary phases of high separation efficiency.
Abstract: In order to investigate the separation mechanism of liquid crystals stationary phases based on an oxadiazole moiety, new 1,3,4-oxadiazole derivative as side mesogenic arm in liquid crystals was prepared, and its structural spectroscopic data were studied in this paper. A powerful indication about the relationship between molecular structure and ali...
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Historical Development of Liquid Crystalline Stationary Phases: An Overview
Issue:
Volume 3, Issue 5-1, October 2015
Pages:
7-10
Received:
23 April 2015
Accepted:
24 April 2015
Published:
9 May 2015
Abstract: Nematic liquid crystals have shown particular selectivity and sensitivity as stationary phases for the separation of isomers having similar volatilities. Because of their unique selectivity towards rigid solute isomers, liquid crystal stationary phases were considered at one time to be a very promising class of materials that give the gas chromatographic separations a great deal of attention. In this overview, we present a brief historical view of the liquid crystal stationary phases development, which were successfully used in gas chromatography for separation of isomers.
Abstract: Nematic liquid crystals have shown particular selectivity and sensitivity as stationary phases for the separation of isomers having similar volatilities. Because of their unique selectivity towards rigid solute isomers, liquid crystal stationary phases were considered at one time to be a very promising class of materials that give the gas chromatog...
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