Self‐assembly of a mixed‐ligand silver‐based coordination polymer

The novel title silver(I) coordination polymer, catena‐poly­aceto­nitrile­silver(I)]‐di‐μ‐4‐N‐(di­phenyl­phosphino)­amino­meth­yl]­pyridine‐κ²N¹:P;κ²P:N¹‐aceto­nitrile­silver(I)]‐μ₃‐4‐N,N‐bis­(di­phenyl­phosphino)­amino­methyl]­pyridine‐κ³N¹:P:P′‐bis­aceto­nitrile­silver(I)(Ag—Ag)]‐μ₃‐4‐N,N‐bis­(di­phenyl­phosphino)­amino­methyl]­pyridine‐κ³P:P′:N¹] tetra­kis­(tetra­fluoro­borate) aceto­nitrile trisolvate], {Ag₄(C₂H₃N)₄(C₁₈H₁₇N₂P)₂(C₃₀H₂₆N₂P₂)₂](BF₄)₄·3C₂H₃N}_n, is formed by the self‐assembly of the Ph₂P(4‐NHCH₂C₅H₄N) and (Ph₂P)₂(4‐NCH₂C₅H₄N) ligands with silver tetra­fluoro­borate. The polymer consists of alternating rings (which lie about inversion centers) bridged by the pyridyl rings of the bis‐phosphine‐substituted ligands, with anions hydrogen bonded the length of the chain. Two distinctly different metal coordination environments exist in the polymer, viz. distorted tetrahedral and trigonal geometries.