title: 2-(5-Chloro-2-oxoindolin-3-yl-idene)hydrazinecarbo-thio-amide.
abstract: The title mol-ecule, C9H7ClN4OS, is almost planar, with an r.m.s. deviation of 0.034 (2) Å for the mean plane through all the non-H atoms. Intra-molecular N-H⋯O and N-H⋯N hydrogen bonds form S(6) and S(5) ring motifs, respectively. In the crystal, mol-ecules are assembled into inversion dimers through pairs of co-operative N-H⋯Cl inter-actions. These dimers are connected along the b axis by N-H⋯O and N-H⋯S hydrogen bonds, generating layers parallel to (103). The layers are further connected along the a axis into a three-dimensional network, through weak π-π stacking inter-actions [centroid-centroid distance = 3.849 (2) Å].
authors.affiliation: Escola de Quimica e Alimentos, Universidade Federal do Rio Grande, Av. Italia, km 08, Campus Carreiros, 96203-900 Rio Grande-RS, Brazil.
authors.forename: Viviane Conceição Duarte
authors.initials: VC
authors.lastname: de Bittencourt
authors.affiliation: Escola de Quimica e Alimentos, Universidade Federal do Rio Grande, Av. Italia, km 08, Campus Carreiros, 96203-900 Rio Grande-RS, Brazil.
authors.forename: Juliano Rosa de Menezes
authors.initials: JR
authors.lastname: Vicenti
authors.affiliation: Escola de Quimica e Alimentos, Universidade Federal do Rio Grande, Av. Italia, km 08, Campus Carreiros, 96203-900 Rio Grande-RS, Brazil.
authors.forename: Jecika Maciel
authors.initials: JM
authors.lastname: Velasques
authors.affiliation: Departamento de Quimica, Universidade Federal de Santa Maria, Av. Roraima, Campus, 97105-900 Santa Maria-RS, Brazil.
authors.forename: Priscilla Jussiane
authors.initials: PJ
authors.lastname: Zambiazi
authors.affiliation: Escola de Quimica e Alimentos, Universidade Federal do Rio Grande, Av. Italia, km 08, Campus Carreiros, 96203-900 Rio Grande-RS, Brazil.
authors.forename: Vanessa Carratu
authors.initials: VC
authors.lastname: Gervini