Crystal structure of a tetranuclear CuII complex with an O,N,N′-donor Schiff base ligand: hexa-μ2-acetato-bis­(2-{[(2,2,6,6-tetra­methyl­piperidin-4-yl)imino]­meth­yl}phenolato-κ3O,N,N′)tetra­copper(II)

Acta Crystallographica Section E: Crystallographic Communications

Huang, G.¹  Liu, X.¹ 

[1] School of Materials and Energy, Guangdong University of Technology, No. 100 Waihuan Xi Road, Guangzhou, Guangdong 510006, People's Republic of China

关键词: CRYSTAL STRUCTURE;    SCHIFF BASE LIGAND;    BOAT CONFORMATION;    PIPERIDINES;    COPPER(II) COMPLEX;   

DOI  :  10.1107/S2056989016005041

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The title compound, [Cu4(CH3COO)6(C16H23N2O)2], lies across a twofold rotation axis. The asymmetric unit contains two independent CuII ions. The symmetry-unique terminal CuII ion is O,N,N′-coordinated by a 2-{[(2,2,6,6-tetra­methyl­piperidin-4-yl)imino]­meth­yl}phenolate ligand and an O atom from an acetate group in a slightly distorted square-planar coordination environment. The symmetry-unique central CuII ion is coordinated by a different O atom from the same acetate group and by four bridging acetate ligands, which connect the asymmetric unit into a dimeric complex and form a distorted square-pyramidal coordination environment. Within the complex there are two symmetry-equivalent intra­molecular N—H⋯O hydrogen bonds. In the crystal, weak C—H⋯O hydrogen bonds link the complex mol­ecules, forming a three-dimensional network.

【 授权许可】

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