catena-Poly[[[(acetonitrile-κN)silver(I)]-μ-bis­(pyrimidin-2-ylsulfan­yl)methane-κ²N¹:N^1′] tetra­fluoro­borate]

In the title complex, {[Ag(C₉H₈N₄S₂)(C₂H₃N)]BF₄}_n, the Ag^I atom shows trigonal–planar coordination, as it is coordinated by the N atoms from two bis­(pyrimidin-2-ylsulfan­yl)methane mol­ecules and the N-atom donor of an acetonitrile mol­ecule. The manner in which the donor mol­ecules connect to the Ag atoms leads to a linear chain structure. Adjacent chains are connected into a layer via weak Ag...S inter­actions.