Crystal structure of bis{2-[(2-hydroxyethyl)amino]ethanol-κ³O,N,O′}copper(II) terephthalate

Abstract

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 0 -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-HÁ Á ÁO and two N-HÁ Á ÁO hydrogen bonds, forming a three-dimensional network structure.Keywords: crystal structure; copper(II) chelate complex; terephthalate.