2-Hydroxyimino-1-phenylethanone thiosemicarbazone monohydrate

Abstract

In the title thiosemicarbazone derivative, C9H10N4OS·H2O, intramolecular N—H...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...O hydrogen bonding as a donor. In the crystal structure, intramolecular O—H...S and N—H...N and intermolecular O—H...O and N—H...S hydrogen bonds generate edge-fused R22(8) and R41(11) ring motifs. The hydrogen-bonded motifs are linked to each other to form a three-dimensional supramolecular network.