organic compounds
The asymmetric unit of the title compound, C6H6N4, comprises one and a half molecules with a C2 axis through the second molecule. Each molecule consists of two planar five-membered rings connected by a triazole–pyrrole N—N bond with the triazole ring close to being at right angles to the pyrrole ring. The molecules are linked by C—HN hydrogen bonds and weaker offset face-to-face π–π interactions.