5-p-Tolyl-1H-tetrazole

The title compound, C8H8N4, possesses crystallographic mirror symmetry, with four C atoms lying on the reflecting plane, which bisects the phenyl and tetrazole rings. It is composed of a planar r.m.s. deviation (0.0012 Å) tetrazole ring which is nearly coplanar with the benzene ring, the dihedral angle being 2.67 (9)°. In the crystal, symmetry-related molecules are linked by intermolecular N—H...N hydrogen bonds. The molecules stack along [100] with a π...π interaction involving the phenyl and tetrazole rings of adjacent molecules [centroid–centroid distance = 3.5639 (15) Å]. The H atom of the N—H group is disordered over two sites of equal occupancy. The methyl H atoms were modelled as disordered over two sets of sites of equal occupancy rotated by 60° with respect to each other.