Crystal Structure of 4-Amino-3-(4′-chlorophenyl)-4-H-[1,2,4]-triazolo-5-thiol

The crystal structure of 4-amino-3-(4′-chlorophenyl)-4H-[1,2,4]-triazolo-5-thiol (ACPTT) was determined by crystallographic methods. There are two crystallographically independent molecules in the asymmetric unit and are related by pseudo inversion symmetry with each other. A number of C-H…N and N-H…N types of intermolecular interactions stabilize the molecules in the unit cell in addition to van der Waals forces.