In the title coordination polymer, [Cu(CHO)(CHN)], the Cu atoms in {NO} square-pyramidal coordination environments are conjoined into diperiodic coordination polymer slabs by the full span of the bridging 1,4-bis-(pyridin-4-ylmeth-yl)piperazine (bpmp) and 4-(carboxyl-eth-yl)benzoate (ceb) ligands. The slab motifs are expanded into the full crystal structure by means of longer-range C-H⋯O attractive inter-actions.
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