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Updated: May 7, 2026
Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
Ranking relative hydrogen-bond strengths in hydroxybenzoic acids for crystal-engineering purposes
Christer B Aakeröy1, Kanishka Epa, Safiyyah Forbes
1Department of Chemistry, Kansas State University, 213 CBC Building, Manhattan, KS 66506-0401 (USA), Fax: (+1) 785-532 6666. aakeroy@ksu.edu.
Abstract:
Systematic co-crystallizations resulting in a total of six new crystal structures involving either 3-hydroxy- or 4-hydroxybenzoic acid, complemented by calculated molecular electrostatic potential surfaces and existing structural data, have shown that in a competitive molecular recognition situation, the -OH moiety is a more effective hydrogen-bond donor than the -COOH moiety which, in turn, highlights that electrostatic charge can offer more useful guidance than acidity for predicting competitive hydrogen-bond preferences.
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