6‐Phenyl‐3‐(4‐pyrid­yl)‐1,2,4‐triazolo[3,4‐b][1,3,4]thia­diazole

The title compound, C₁₄H₉N₅S, 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.