Received 3 March 2013
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-HN hydrogen bonds, forming zigzag chains parallel to [10-1].
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).
Data collection: SMART (Bruker, 2002); cell refinement: SAINT (Bruker, 2002); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: GG2112 ).
This work was supported by the National Natural Science Foundation of China (21071001, 21271004) and grants from the Postdoctoral Foundation of Anhui Province.
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