[(E)-2-(3,5-Dibromo-2-oxidobenzyl-ideneamino)-3-(4-hydroxy-phen-yl)propionato-κO,N,O'](dimethyl-formamide-κO)copper(II)

Abstract

In the title complex, [Cu(C(16)H(11)Br(2)NO(4))(C(3)H(7)NO)](2), there are two unique mol-ecules in the asymmetric unit. Each Cu(II) atom is coordinated by two O atoms and one N atom from the tridentate ligand L(2-) [LH(2) = (E)-2-(3,5-dibromo-2-hydroxy-benzyl-idene-amino)-2-(4-hydroxy-phenyl)acetic acid] and the O atom of a dimethyl-formamide mol-ecule to give a slightly distorted square-planar geometry. The two unique mol-ecules form a dimer through weak C-H⋯O hydrogen bonds. In the dimer, the Cu⋯Cu distance is 3.712 (1) Å. In the crystal structure, mol-ecules form a one-dimensional chain through C-H⋯O hydrogen bonds. These are further aggregated into a three-dimensional network by O-H⋯O and C-H⋯O hydrogen bonds.

Fig. 1.

The asymmetric unit of (I), with 30% probability displacement ellipsoids for non-H atoms. Hydrogen atoms have been omitted and C—H···O hydrogen bonds are drawn as dashed lines.

Fig. 2.

The formation of one-dimensional chains along c. Hydrogen bonds are drawn as dashed lines.

Fig. 3.

Crystal packing of (I) showing the three-dimensional network, with hydrogen bonds drawn as dashed lines.