Crystal structure of bis­{2-[(2-hy­droxy­eth­yl)amino]­ethanol-κ(3) O,N,O′}copper(II) terephthalate

The mol­ecular components of the title salt, [Cu(C(4)H(11)NO(2))(2)](C(8)H(4)O(4)), are one Cu(II) cation O,N,O′-chelated by two tridentate 2-[(2-hy­droxy­eth­yl)amino]­ethanol ligands, and a terephthalate counter-dianion, located about a centre of inversion. The complex Cu(II) cation is located about a centre of inversion and shows typical Jahn–Teller distortion, with two short Cu—O and two short Cu—N bonds in the equatorial plane and two long Cu—O bonds to the axial atoms. The cations are arranged in sheets parallel to (100), with the centrosymmetric terephthalate anions located between the sheets. Each anion is the acceptor of four O—H⋯O and two N—H⋯O hydrogen bonds, forming a three-dimensional network structure.