5-Bromo-2-hydroxybenzaldehyde thiosemicarbazone

The molecule of the title compound, C8H8BrN3OS, is close to being planar, with maximum deviations of -0.127 (3) and 0.135 (5) angstrom for the N atoms of the -NH- and NH2- groups, respectively. Intramolecular N-H center dot center dot center dot N and O-H center dot center dot center dot N hydrogen bonds to the same acceptor N atom generate S(5) and S(6) ring motifs. In the crystal structure, molecules are connected into [010] chains by pairs of N-H center dot center dot center dot S hydrogen bonds with R-2(2)(8) graph-set motifs. The crystal used for data collection was found to be an inversion twin