American Journal of Applied Chemistry

Volume 3, Issue 5, October 2015

  • 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
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    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... Show More
  • Historical Development of Liquid Crystalline Stationary Phases: An Overview

    Emad Ghanem

    Issue: Volume 3, Issue 5-1, October 2015
    Pages: 7-10
    Received: 23 April 2015
    Accepted: 24 April 2015
    Published: 9 May 2015
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    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... Show More