Huang Guohui, Liu Xiaoxuan
School of Materials and Energy, Guangdong University of Technology, No. 100 Waihuan Xi Road, Guangzhou, Guangdong 510006, People's Republic of China.
Acta Crystallogr E Crystallogr Commun. 2016 Mar 31;72(Pt 4):597-9. doi: 10.1107/S2056989016005041. eCollection 2016 Apr 1.
The title compound, [Cu4(CH3COO)6(C16H23N2O)2], lies across a twofold rotation axis. The asymmetric unit contains two independent Cu(II) ions. The symmetry-unique terminal Cu(II) ion is O,N,N'-coordinated by a 2-{[(2,2,6,6-tetra-methyl-piperidin-4-yl)imino]-meth-yl}phenolate ligand and an O atom from an acetate group in a slightly distorted square-planar coordination environment. The symmetry-unique central Cu(II) 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 intra-molecular N-H⋯O hydrogen bonds. In the crystal, weak C-H⋯O hydrogen bonds link the complex mol-ecules, forming a three-dimensional network.
标题化合物[Cu4(CH3COO)6(C16H23N2O)2]位于一个二重旋转轴上。不对称单元包含两个独立的Cu(II)离子。对称独特的末端Cu(II)离子由一个2-{[(2,2,6,6-四甲基哌啶-4-基)亚氨基]-甲基}酚盐配体和一个来自乙酸根的O原子以稍微扭曲的平面正方形配位环境进行O,N,N'-配位。对称独特的中心Cu(II)离子由来自同一乙酸根的不同O原子以及四个桥联乙酸根配体配位，这些配体将不对称单元连接成二聚体配合物并形成扭曲的正方锥配位环境。在配合物内部有两个对称等效的分子内N-H⋯O氢键。在晶体中，弱的C-H⋯O氢键连接配合物分子，形成三维网络。
