Crystal structure of {6,6'-dihy-droxy-2,2'-[imino-bis-(propane-1,3-diyl-nitrilo-methanylyl-idene)]diphenolato-κ(5) O (1),N,N',N'',O (1')}copper(II)

Shabana Noor; Sarvendra Kumar; Suhail Sabir; Rüdiger W Seidel; Richard Goddard

doi:10.1107/S2056989015019684

Crystal structure of {6,6'-dihy-droxy-2,2'-[imino-bis-(propane-1,3-diyl-nitrilo-methanylyl-idene)]diphenolato-κ(5) O (1),N,N',N'',O (1')}copper(II)

Acta Crystallogr E Crystallogr Commun. 2015 Oct 24;71(Pt 11):m203-4. doi: 10.1107/S2056989015019684. eCollection 2015 Nov 1.

Authors

Shabana Noor¹, Sarvendra Kumar², Suhail Sabir¹, Rüdiger W Seidel³, Richard Goddard³

Affiliations

¹ Department of Chemistry, Aligarh Muslim University, Aligarh 202 002, India.
² Faculty of Pharmaceutical Science, Tokyo University of Science, Noda, Japan.
³ Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz-1, 45470 Mülheim an der Ruhr, Germany.

Abstract

The title compound, [Cu(C20H23N3O4)], crystallizes in the space group Cc with two independent mol-ecules in the asymmetric unit. The Cu(II) atoms are each coordinated by the penta-dentate Schiff base ligand in a distorted trigonal bipyramidal N3O2 geometry. The equatorial plane is formed by the two phenolic O atoms and the amine N atom, while the axial positions are occupied by the two imine N atoms. In the crystal, the two independent mol-ecules are each connected into a column along the b axis through inter-molecular O-H⋯O hydrogen bonds. The two independent columns are further linked through an N-H⋯O hydrogen bond, forming a double-column structure.

Keywords: CuII complex; Schiff bases; crystal structure; distorted trigonal bipyramidal coordination geometry; hydrogen bond.