title: (2Z)-N-(2-Chloro-benz-yl)-2-(2-oxo-2,3-dihydro-1H-indol-3-yl-idene)hydrazinecarbothio-amide.
abstract: In the title compound, C(16)H(13)ClN(4)OS, the isatin ring system is oriented at dihedral angles of 10.60 (7) and 72.60 (3)° with respect to the thio-semicarbazide and 2-chloro-benzyl groups, respectively. The near planarity of the isatin and thio-semicarbazide groups [r.m.s. deviations of 0.0420 and 0.0163 Å, respectively] is reinforced by intra-molecular N-H⋯O and N-H⋯N hydrogen bonds, which generate S(6) and S(5) rings, respectively. In the crystal, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate R(2) (2)(8) loops. Aromatic π-π stacking inter-actions between the centroids of heterocyclic five-membered and benzene rings [distance = 3.6866 (11) Å] are also observed.
authors.forename: Humayun
authors.initials: H
authors.lastname: Pervez
authors.forename: Nazia
authors.initials: N
authors.lastname: Khan
authors.forename: Mohammad S
authors.initials: MS
authors.lastname: Iqbal
authors.forename: Muhammad
authors.initials: M
authors.lastname: Yaqub
authors.forename: M Nawaz
authors.initials: MN
authors.lastname: Tahir