[catena-Poly[[[(N,N,N',N'-tetramethylethylenediamine)copper(II)]-mu-oxalato] tetrahydrate]].

In the title compound, {[Cu(C2O4)(C6H16N2)].4H2O}n, the Cu atom is six-coordinate in a distorted octahedral geometry, and N,N,N',N'-tetramethylethylenediamine acts as a chelating ligand. The oxalate anion, which lies about an inversion centre, bridges the metal cations and forms infinite chains. The structure cohesion is ensured by hydrogen-bonding… (More)