Crystal structure of a two-dimensional grid-type iron(II) coordination polymer: poly[[di­aqua­tetra-μ-cyanido-diargentate(I)iron(II)] trans-1,2-bis(pyridin-2-yl)ethyl­ene disolvate]

{[Fe(H₂O)₂{Ag(CN)₂}₂](2,2′-bpe)₂}_n forms a two-dimensional grid-type structure with the organic guest mol­ecules occupying the space between adjacent grid layers. The grid layers are held together by hydrogen bonds between the organic guest mol­ecules and the host framework and gives rise to a three-dimensional supra­molecular architecture.