Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 4 (April 2013)

organic compounds

Acta Cryst. (2013). E69, o491-o492    [ doi:10.1107/S1600536813005837 ]


H.-K. Fun, C. S. Chidan Kumar, P. Patrao, A. M. A. Khader and B. Kalluraya

Abstract: The asymmetric unit of the title compound, C26H18N6O4S, contains two independent mol­ecules (A and B). The dihedral angles between the oxadiazole ring and naphthalene ring system are 42.59 (14) and 6.88 (14) Å in mol­ecules A and B, respectively. The dihedral angles between the pyridine and benzene rings in A and B are 65.53 (13 )and 87.67 (13) Å, respectively. In the crystal, mol­ecules A and B are linked through a pair of N-H...N hydrogen bonds involving one -NH2 group H atom and second pair of N-H...N hydrogen bonds involving the other -NH2 group H atom, forming an -ABAB- ribbon along [100] containing R22(8) and R22(12) ring motifs. These ribbons are further connected by weak C-H...N, C-H...O and C-H...[pi] inter­actions, resulting in a three-dimensional network. The crystal studied was a non-merohedral twin with refined components 0.906 (1):0.094 (1).

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