Crystal structure of 1-(4-formylbenzylidene)thiosemicarbazone

Abstract

The asymmetric unit of the title compound, C9H9N3OS, contains two approximately planar molecules (r.m.s. deviations for 14 non-H atoms = 0.094 and 0.045 Å), with different conformations. In one of them, the C=O group issynto the S atom and in the other it isanti. Each molecule features an intramolecular N—H...N hydrogen bond, which generates anS(5) ring. In the crystal, molecules are linked by N—H...O and N—H...S hydrogen bonds, generating discrete networks; thesynmolecules form [010] chains and theantimolecules form (100) sheets.