title: Crystal structure of (Z)-2-(5-fluoro-2-oxoindolin-3-yl-idene)hydrazinecarbo-thio-amide.
abstract: In the title compound, C9H7FN4OS, the mol-ecules are almost planar, with an r.m.s. deviation of 0.047 (3) Å from the mean plane defined by the non-H atoms and a maximum deviation of 0.123 (2) Å for the amine N atom. The torsion angle for the N-N-C-S unit is 176.57 (19)°. In the crystal, mol-ecules are linked into inversion dimers via pairs of N-H⋯F hydrogen bonds and, additionally, through N-H⋯O and N-H⋯S hydrogen bonds, building a two-dimensional hydrogen-bond network parallel to the (103) plane. An intra-molecular N-H⋯O inter-action is also observed.
authors.affiliation: Escola de Química e Alimentos, Universidade Federal do Rio Grande, Av. Itália km 08, Campus Carreiros, 96203-900 Rio Grande-RS, Brazil.
authors.forename: Viviane C D
authors.initials: VC
authors.lastname: Bittencourt
authors.affiliation: Escola de Química e Alimentos, Universidade Federal do Rio Grande, Av. Itália km 08, Campus Carreiros, 96203-900 Rio Grande-RS, Brazil.
authors.forename: Vitor Y G
authors.initials: VY
authors.lastname: Almeida
authors.affiliation: Departamento de Química, Universidade Federal de Santa Maria, Av. Roraima s/n, Campus Universitário, 97105-900 Santa Maria-RS, Brazil.
authors.forename: Davi F
authors.initials: DF
authors.lastname: Back
authors.affiliation: Escola de Química e Alimentos, Universidade Federal do Rio Grande, Av. Itália km 08, Campus Carreiros, 96203-900 Rio Grande-RS, Brazil.
authors.forename: Vanessa C
authors.initials: VC
authors.lastname: Gervini
authors.affiliation: Departamento de Química, Universidade Federal de Sergipe, Av. Marechal Rondon s/n, Campus Universitário, 49100-000 São Cristóvão-SE, Brazil.
authors.forename: Adriano Bof
authors.initials: AB
authors.lastname: de Oliveira
keywords: crystal structure; isatin; natural product; thio­semicarbazone derivative; two-dimensional hydrogen-bonding network