Crystal structure of bis­[2,5-bis­(pyridin-2-yl)-1,3,4-thia­diazole-κ(2) N (2),N (3)]bis­(thio­cyanato-κS)copper(II)

The mononuclear title complex, [Cu(SCN)(2)(C(12)H(8)N(4)S)(2)], was obtained by the reaction of 2,5-bis­(pyridin-2-yl)-1,3,4-thia­diazole and potassium thio­cyanate with copper(II) chloride dihydrate. The copper cation lies on an inversion centre and displays an elongated octa­hedral coordination geometry. The equatorial positions are occupied by the N atoms of two 2,5-bis­(pyridin-2-yl)-1,3,4-thia­diazole ligands, whereas the axial positions are occupied by the S atoms of two thio­cyanate anions. The thia­diazole and the pyridyl rings linked to the metal are approximately coplanar, with a maximum deviation from the mean plane of 0.190 (2) Å. The cohesion of the crystal structure is ensured by weak C—H⋯N hydrogen bonds and π–π inter­actions between parallel pyridyl rings of neighbouring mol­ecules [centroid-to-centroid distance = 3.663 (2) Å], leading to a three-dimensional network.