catena-Poly[[[bis(quinoxaline-2-carboxylato-κ² N ¹,O)zinc(II)]-μ₂-1,2-bis(pyridin-4-yl)ethene-κ² N:N′] hemihydrate]

The title complex, {[Zn(C 9 H 5 N 2 O 2 ) 2 (C 12 H 10 N 2 )]·0.5H 2 O} n , has six-coordinate Zn II ions with two trans -bidentate quinoxaline-2-carboxylato ligands and a bridging 1,2-bis(pyridin-4-yl)ethylene ligand, resulting in polymeric chains along the [10 1 ] direction. The offset packing of these one-dimensional chains gives rise to inter-chain H...O and H...ring interactions.