5-Hydroxy-2-nitrobenzaldehyde thiosemicarbazone (HNBATSC)

Abstract

The asymmetric unit of the title compound, C8H8N 4O3S, consists of two independent molecules. Each molecule is approximately planar with dihedral angles of 8.71(3) and 1.50(2)° between the aromatic ring and the thiosemicarbazide moiety while the NO2 group makes dihedral angles of 29.27(3) and 17.78(3)° with the benzene ring. In the crystal, the molecules are linked by N - H⋯S, O - H⋯O and N - H⋯O hydrogen bonds, forming two-dimensional networks parallel to (100).