Crystal structure of poly[(2,2′-bipyridine-κ2N,N′)tetra-μ2-cyanido-κ4C:N;κ4N:C-manganese(II)disilver(I)

Abstract

The title compound, [Ag2Mn(CN)4(C10H8N2)]n or Mn(bipy){Ag(CN)2}2 (bipy = 2,2′-bi­pyridine) is isostructural with Cd(bipy){Au(CN)2}2 [Guo et al. (2009 ▸). CrystEngComm, 11, 61–66]. The MnII atom has crystallographically imposed twofold symmetry and a distorted octa­hedral coordination sphere consisting of six N atoms from one bi­pyridine ligand and four di­cyano­argentate(I) anions, [Ag(CN)2]−, while the AgI atom of the complex anion displays the expected linear geometry. Each [Ag(CN)2]− unit connects to two neighbouring [Mn(bipy)]2+ cations to give an threefold inter­penetrating quartz-like three-dimensional framework. No directional inter­actions beyond van der Waals contacts are observed.