6-Phenyl-3-(4-Pyridyl)-1,2,4-Triazolo[3,4-b][1,3,4]Thiadiazole

Abstract

The title compound, C<inf>14</inf>H<inf>9</inf>N<inf>5</inf>S, has been synthesized and characterized both spectroscopically and structurally. The triazolo-thiadiazole system, the pyridine ring and the phenyl ring are all planar. The plane of the triazolo-thiadiazole system forms dihedral angles of 1.53 (13) and 7.55 (12)° with the planes of the pyridine and phenyl rings, respectively. In the molecule, there are two intramolecular interactions of types C-H⋯N and C-H⋯S. Intermolecular C-H⋯N interactions involving a phenyl CH group and a triazole N atom lead to the formation of a one-dimensional chain. In the crystal structure, two types of π-π interactions affect the packing of the molecules. In addition, there are intermolecular non-bonded S⋯N contacts of 2.870 (2) Å, which may cause steric hindrance. © 2005 International Union of Crystallography.