A binuclear imino­diacetato–copper(II) complex with the N,N′-bis­(pyridin-4-ylmethyl­ene)hydrazine ligand as spacer

The centrosymmetric title compound, μ-N,N′-bis­(pyridin-4-ylmethyl­ene)hydrazine-bis­[diaqua­(imino­di­acetato)­copper(II)], [Cu₂(C₄H₅NO₄)₂(C₁₂H₁₀N₄)(H₂O)₄], features a trans-N₂O₄ donor set that defines a heavily distorted octa­hedral geometry. Coordination is provided by a tridentate imino­diacetate (ida) dianion, one end of a bidentate bridging N,N′-bis­(pyridin-4-ylmethyl­ene)hydrazine ligand, which is disposed about a centre of inversion, and two water mol­ecules. Extensive hydrogen bonding leads to a cohesive crystal structure.