2-Hydroxyimino-1-phenylethanone thiosemicarbazone monohydrate

In the title thiosemicarbazone derivative, C9H10N4OS center dot H2O, intramolecular N-H center dot center dot center dot N hydrogen bonds result in the formation of two nearly coplanar five- and six-membered rings, which are also almost coplanar with the adjacent phenyl ring. The oxime group has an E configuration and is involved in intermolecular O-H center dot center dot center dot O hydrogen bonding as a donor. In the crystal structure, intramolecular O-H center dot center dot center dot S and N-H center dot center dot center dot N and intermolecular O-H center dot center dot center dot O and N-H center dot center dot center dot S hydrogen bonds generate edge-fused R-2(2)(8) and R-4(1)(11) ring motifs. The hydrogen-bonded motifs are linked to each other to form a three-dimensional supramolecular network.