title: Crystal structure of (E)-4-{1-[2-(car-bamo-thio-yl)hydrazin-1-yl-idene]ethyl}phenyl 4-methyl-benzoate.
abstract: The asymmetric unit of the title compound, C17H17N3O2S, consists of two independent mol-ecules, A and B, with different conformations: in mol-ecule A, the dihedral angles between the central benzene ring and the pendant tolyl and carbamo-thio-ylhydrazono groups are 71.12 (9) and 5.95 (8)°, respectively. The corresponding angles in mol-ecule B are 50.56 (12) and 26.43 (11)°, respectively. Both mol-ecules feature an intra-molecular N-H⋯N hydrogen bond, which closes an S(5) ring. In the crystal, mol-ecules are linked by N-H⋯O, N-H⋯S and C-H⋯O hydrogen bonds, generating a three-dimensional network.
authors.affiliation: Department of Chemistry, Asthagiri Herbal Research Foundation, Perungudi Industrial Estate, Perungudi, Chennai 600 096, India.
authors.forename: Karthik Ananth
authors.initials: KA
authors.lastname: Mani
authors.affiliation: Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: Vijayan
authors.initials: V
authors.lastname: Viswanathan
authors.affiliation: Department of Chemistry, Asthagiri Herbal Research Foundation, Perungudi Industrial Estate, Perungudi, Chennai 600 096, India.
authors.forename: S
authors.initials: S
authors.lastname: Narasimhan
authors.affiliation: Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
authors.forename: Devadasan
authors.initials: D
authors.lastname: Velmurugan
keywords: biological activity; crystal structure; ester; hydrogen bonding; thio­semicarbazones derivatives