Research paper by H S HS Naveenkumar, Amirin A Sadikun, Pazilah P Ibrahim, Jia Hao JH Goh, Hoong-Kun HK Fun

Indexed on: 01 Jan '09Published on: 01 Jan '09Published in: Acta Crystallographica Section E


In the title compound, C(12)H(11)N(3)O(2)S, the pyridine ring is inclined to the thio-phene ring, forming a dihedral angle of 34.96 (7)°. The mean plane through the hydrazide unit forms dihedral angles of 21.57 (8) and 53.08 (8)°, respectively, with the pyridine and thio-phene rings. The two O atoms are twisted away from each other, as indicated by the C-N-N-C torsion angle of -81.27 (15)°. In the crystal structure, mol-ecules are linked into an extended three-dimensional network by inter-molecular N-H⋯N, N-H⋯O and C-H⋯O hydrogen bonds. The crystal structure also features a short S⋯O [3.2686 (10) Å] inter-action and a weak inter-molecular C-H⋯π inter-action.