catena-Poly[silver(I)-bis­[μ-4-methyl-1H-1,2,4-triazole-3(4H)-thione-κ²S:S]-silver(I)-di-μ-thio­cyanato-κ²S:N;κ²N:S]

In the title one-dimensional coordination polymer, [Ag₂(NCS)₂(C₃H₅N₃S)₂]_n, the Ag^I atom adopts a distorted tetra­hedral AgNS₃ geometry. Adjacent Ag^I atoms in the [001] chain are alternately linked by pairs of bridging 4-methyl-1H-1,2,4-triazole-3(4H)-thione (Hmptrz) ligands (via their S atoms) and double thio­cyanate bridges linking through both S and N atoms (μ-1,3-SCN). An intra­chain N—H...N hydrogen bond occurs between the NH group of the triazole ring and the N atom of the thio­cyanate bridging ligand. A (101) sheet structure arises from inter­chain S...N short contacts [3.239 (3) Å] involving the thio­cyanate S atom and the triazole-ring N atom and possible very weak π–π stacking [centroid–centroid separation = 4.0762 (18) Å] between the triazole rings.