title: Crystal structure of S,N-dibenzyl-d-penicillamine monohydrate.
abstract: In the asymmetric unit of the title compound, C19H23NO2S·H2O, there are two independent organic mol-ecules and two water mol-ecules. Both organic mol-ecules exist as the zwitterionic form. The dihedral angles between the planes of the rings in the organic mol-ecules are 86.84 (10) and 88.77 (11)°. An intramolecular N-H⋯S hydrogen bond occurs. In the crystal, organic and water mol-ecules are linked by N-H⋯O and O-H⋯O hydrogen bonds, generating a tape structure running along the b-axis direction.
authors.affiliation: Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
authors.forename: Nobuto
authors.initials: N
authors.lastname: Yoshinari
authors.affiliation: Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan ; CREST, Japan Science and Technology Agency, Toyonaka, Osaka 560-0043, Japan.
authors.forename: Takumi
authors.initials: T
authors.lastname: Konno
keywords: crystal structure; hydrogen bonds; penicillamine