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The structure of the polymeric title compound, [Ni 2 (C 8 H 10 O 4 ) 2 (C 14 H 14 N 4 )]  n  , features a five-coordinate Ni II  centre defined by four carboxyl­ate O atoms from two different cyclo­hexane-1,4-dicarboxyl­ate (chdc) ligands and an N atom from one end of a 1,4-bis­(imidazol-1-ylmeth­yl)benzene (1,4-bix) mol­ecule. The NO 4  coordination geometry is distorted square-pyramidal with the N atom in the apical position. Each end of the chdc ligand links pairs of Ni II  atoms into a paddle-wheel assembly,  i.e.  Ni 2 (O 2 C R ′) 4 . These are connected into rows owing to the bridging nature of the chdc ligands, and the rows are connected into a two-dimensional grid  via  the 1,4-bix ligands. The 1,4-bix ligand, which is disposed about a centre of inversion, is disorderd. Two positions of equal occupancy were discerned for the –H 2 C(C 6 H 4 )CH 2 – residue.

Poly[[μ-1,4-bis(imidazol-1-ylmethyl)benzene]bis(μ4-cyclohexane-1,4-dicarboxylato)dinickel(II)]

Poly[[μ-1,4-bis(imidazol-1-ylmethyl)benzene]bis(μ₄-cyclohexane-1,4-dicarboxylato)dinickel(II)]