6-(2-Methylphenyl)-3-(3,4,5-trimethoxyphenyl)-1,2,4-triazolo[3,4-b][1,3,4] thiadiazole

Abstract

In the mol-ecule of the title compound, C19H18N4O3S, the planar central heterocylic ring system is oriented with respect to the trimethoxy-phenyl and 2-methyl-phenyl rings at dihedral angles of 4.43 (3) and 4.32 (3)°, respectively. The dihedral angle between the two benzene rings is 7.65 (4)°. In the crystal structure, inter-molecular C - H⋯N hydrogen bonds link the mol-ecules into centrosymmetric R 2 2(18) dimers. These dimers are connected via a C - H⋯π contact between the 2-methyl-phenyl and trimethoxy-phenyl rings, and a π-π contact between the thia-diazole and trimethoxy-phenyl rings [interplanar distance 3.51 Å, dihedral angles 4.17(4)°]. An intramolecular C - H⋯N hydrogen bond is also present.