Experimental

R factor = 0.044; wR factor = 0.124; data-to-parameter ratio = 15.0. There are two independent molecules in the asymmetric unit of the title molecule, C8H9N3S2, both of which exhibit an E conformation with the pyridine ring and dithiocarbazate fragment located on opposite sides of the C N bond. The pyridine ring and dithiocarbazate group are approximately coplanar, with dihedral angles of 4.74 (1) and 8.77 (1) between their planes in the two molecules. In the crystal, molecules are linked to each other via N—H N hydrogen bonds, forming zigzag chains parallel to [101]. Related literature For related structures, see: Shan et al. (2006); Chen et al. (2007). Derivatives of the title compound are often used as coordinating ligands in the metal complexes, see for example: Wu et al. (2001); Fun et al. (2001)