α-Cyclodextrin/aminobenzoic acid binding in salt solutions at different pH : dependence on guest structure
Romanova, Anastasia O. and Chibunova, Ekaterina and Kumeev, Roman S. and Fedorov, Maxim V. and Terekhova, Irina V. (2013) α-Cyclodextrin/aminobenzoic acid binding in salt solutions at different pH : dependence on guest structure. International Journal of Biological Macromolecules, 57. pp. 255-258. ISSN 0141-8130 (https://doi.org/10.1016/j.ijbiomac.2013.03.032)
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Influence of Na+ and K+ cations on α-cyclodextrin guest-host complex formation with isomeric aminobenzoic acids was examined at different pH and temperature of 298.15K by 1H NMR and calorimetry methods. More pronounced influence of Na+ on inclusion complex formation of α-CD with aminobenzoic acid anions compare to the effects of Na+ on α-CD complex formation with zwitterionic aminobenzoic acid molecules was revealed. For the first time, the dependence of salt effects on the structure, ionization and the hydration state of the guest molecule was demonstrated and analysed on the basis of the obtained thermodynamic parameters of complex formation and calculated free energy of hydration of different ionized forms of aminobenzoic acids.
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Item type: Article ID code: 48114 Dates: DateEvent1 June 2013PublishedSubjects: Science Department: Faculty of Science > Physics
Technology and Innovation Centre > BionanotechnologyDepositing user: Pure Administrator Date deposited: 15 May 2014 15:59 Last modified: 08 Apr 2024 21:30 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/48114