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Updated: May 19, 2026

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
An optically resolved crystal of thiomalate: (S)-1-phenylethanaminium (R)-thiomalate
Kosuke Igawa1, Nobuto Yoshinari, Takumi Konno
1Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
Abstract:
The asymmetric unit of the optically resolved title salt, C(8)H(12)N(+)·C(4)H(5)O(4)S(-), contains a 1-phenylethanaminium monocation and a thiomalate (3-carboxy-2-sulfanylpropanoate) monoanion. The absolute configurations of the cation and the anion are determined to be S and R, respectively. In the crystal, cation-anion N-H···O hydrogen bonds, together with anion-anion O-H···O and S-H···O hydrogen bonds, construct a two-dimensional supramolecular sheet parallel to the ab plane. The two-dimensional sheet is linked with the upper and lower sheets through C-H···π interactions to stack along the c axis.
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