Synthesis and crystal structure of a new coordination polymer: {[AgL]ClO₄}n (L = 2,5-Bis(3-pyridinylmethylthio)-1,3,4-thiadiazole)

The title complex {[AgL]ClO₄}n (L = 2,5-bis(3- pyridinylmethylthio)-1,3,4-thiadiazole) was synthesized by the reaction of Ag(I) salt and a novel flexible ligand L. Its structure was determined by X-ray crystallography with the following data: monoclinic, space group P2 ₁/n, a = 16.5068 (13), b = 7.6548 (4), c = 16.5521 (13) Å, β = 115.119 (3)°, V= 1893.7 (2) ų, Z = 4, D _c = 1.893 g/cm³, μ = 1.565 mm^-1, F(000) = 1072, C₁₄H₁₂AgClN₄O₄S₃, M_r = 539.78, T= 293 (2) K, S = 1.067, the final R = 0.0342 and wR = 0.0870. The silver ion in the complex is in a trigonal coordination geometry to link three different L. Meanwhile, each L connects three different silver ions by its N coordination sites to form a two-dimensional layer structure.