{2,2′-[4,5-Dibromo-o-phenylenebis(nitrilodimethylidyne)]diphenolato-κ4O,N,N′,O′}(methanol-κO)copper(II)

Jianxin Xing

doi:10.1107/s1600536809011179

Abstract

In the title compound, [Cu(C20H12Br2N2O2)(CH3OH)], the CuII ion, and the C, O and hydroxy H atoms of the coordinated methanol molecule are located on a twofold rotation axis, while the methyl H atoms are disordered over two sites about the rotation axis. The CuII ion is coordinated by two N atoms [Cu—N = 1.960 (4) Å] and two O atoms [Cu—O = 1.908 (4) Å] from the tetradentate Schiff base ligand and by one O atom [Cu—O = 2.324 (6) Å] of the methanol molecule in a square-pyramidal geometry. In the crystal structure, intermolecular O—H⋯O hydrogen bonds link complex molecules into extended chains along [001].

Highlights

In the title compound, [Cu(C20H12Br2N2O2)(CH3OH)], the CuII ion, and the C, O and hydroxy H atoms of the coordinated methanol molecule are located on a twofold rotation axis, while the methyl H atoms are disordered over two sites about the rotation axis
The CuII ion is coordinated by two N atoms [Cu—N = 1.960 (4) A ] and two O atoms [Cu— O = 1.908 (4) A ] from the tetradentate Schiff base ligand and by one O atom [Cu—O = 2.324 (6) A ] of the methanol molecule in a square-pyramidal geometry
For general background related to Schiff base compounds, see: Ghosh et al (2006); Nayka et al (2006); Singh et al (2007); Yu et al (2007)

Summary

Jianxin Xing

Key indicators: single-crystal X-ray study; T = 273 K; mean (C–C) = 0.008 A; R factor = 0.043; wR factor = 0.111; data-to-parameter ratio = 14.6. Crystal data [Cu(C20H12Br2N2O2)(CH4O)] Mr = 567.72 Orthorhombic, Pnma a = 19.164 (4) Ab = 19.416 (4) Ac = 5.3287 (10) A

Data collection

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