title: An optically resolved crystal of thiomalate: (S)-1-phenylethanaminium (R)-thiomalate.
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.
authors.affiliation: Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
authors.forename: Kosuke
authors.initials: K
authors.lastname: Igawa
authors.forename: Nobuto
authors.initials: N
authors.lastname: Yoshinari
authors.forename: Takumi
authors.initials: T
authors.lastname: Konno