Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 208, Issue -, Pages 363-372Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molliq.2015.05.011
Keywords
Hydroxyflavones; Hydroxyisoflavones; Lipophilicity; Partition coefficient; Hydrogen bond acidity; Abraham descriptors
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An NMR method has been used to determine the hydrogen bond acidity, A, of a number of hydroxyisoflavones. Together with our previous studies on hydroxyflavones, these A-values enable the presence of intramolecular hydrogen bonding in hydroxyflavones and hydroxyisoflavones to be detected. A full set of Abraham descriptors has been assigned to all the monohydroxy and dihydroxy-flavones and isoflavones, and to some polyhydroxy-flavones and isoflavones as well. In these assignments, knowledge of the A-descriptor is crucial. These sets of descriptors can then be used to estimate values for a large number of physicochemical and biochemical processes. (C) 2015 Elsevier B.V. All rights reserved.
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