Investigation of Hydrogen Bonding Interaction between Bolaform Schiff Bases with Barbituric Acid by HPLC

Abstract:

In order to investigate the intermolecular hydrogen bonding of special amphiphiles, two bolaform amphiphilic Schiff bases (GN1 and GN2) with different hydrophilic spacers were designed, and their interaction with barbituric acid were tested by liquid chromatography. The chromatographic properties showed that both the Schiff bases showed hydrogen bonding interaction with barbituric acid. In addition, the influence of various detectors was also studied on both cases. Experimental results show that the test with FLD showed better determination than other detectors. It is proposed that due to the directionality and strong matching of hydrogen bond, one barbituric acid molecule can be encapsulated into the intramolecular area of GN1, while two barbituric acid molecules were trapped into the GN2 molecule through intermolecular H-bonds for GN2 due to the long spacer and flexible structure. A rational complex mode was proposed.

• Periodical: Advanced Materials Research (Volumes 356-360)
• Pages: 48-51
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.356-360.48
• Online since: October 2011
• Authors: Qi Tong, Ti Feng Jiao
• Keywords: Barbituric Acid, Hydrogen Bonding, Liquid Chromatography, Schiff-Base

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