Poly[{μ(2)-1,2-bis­[4-(3-pyrid­yl)pyrimidin-2-ylsulfan­yl]ethane}di-μ(2)-cyanido-dicopper(I)]

The asymmetric unit of the title complex, [Cu(2)(CN)(2)(C(20)H(16)N(6)S(2))](n), contains one Cu(I) cation, one cyanide ligand and half of a centrosymmetric 1,2-bis­[4-(3-pyrid­yl)pyrimidin-2-ylsulfan­yl]ethane (bppe) ligand. The Cu(I) atom displays a trigonal coordination geometry, being surrounded by one C atom from one cyanide anion and two N atoms from one cyanide and one bppe ligand. In the complex, each cyanide anion links two Cu(I) atoms in a bis-monodentate mode into a zigzag [–Cu—CN–](n) chain. Two parallel chains are linked by bppe ligands into a ladder chain.