Coordination polymer chains built from Cu^II and adipate ions linked by hydrogen bonds to form a three-dimensional framework structure

In the title compound, catena-poly[bis[(2,2'-bipyridine-κ²N,N')(1,1,3,3-tetracyano-2-ethoxypropenido-κN)copper(II)]-μ₄- hexanedioato-κ⁶O¹,O¹:O¹ :O⁶,O^6':O⁶], [Cu₂(C₉H₅N₄O)₂(C₆H₈O₄)(C₁₀H₈N₂)₂]_n , the adipate (hexanedioate) dianion lies across a centre of inversion in the space group P. The Cu^II centre adopts a distorted form of axially elongated (4+2) coordination, and the Cu^II and adipate components form a one-dimensional coordination polymer from which the 2,2'-bipyridine and 1,1,3,3-tetracyano-2-ethoxypropenide components are pendent, and where each adipate dianion is bonded to four different Cu^II centres. The coordination polymer chains are linked into a three-dimensional framework structure by a combination of C-H⋯N and C-H⋯O hydrogen bonds, augmented by a π-π stacking interaction.