Diallo Alassane Saïdou, Thiam Ibrahima Elhadji, Gueye-Ndiaye Mbossé, Dieng Moussa, Orton James, Simon Coles, Gaye Mohamed
Département de Chimie, UFR SATIC, Université Alioune Diop, Bambey, Senegal.
Département de Chimie, Faculté des Sciences et Techniques, Université Cheik Anta Diop, Dakar, Senegal.
Acta Crystallogr E Crystallogr Commun. 2022 Mar 1;78(Pt 4):349-353. doi: 10.1107/S2056989022002225. eCollection 2022 Apr 1.
The title mol-ecular structure, namely, (μ-acetato)(μ-acetato)-bis-(μ-1,3-bis-{[1-(2-oxidophen-yl)ethyl-idene]amino}-propan-2-olato)tetra-copper(II) monohydrate, [Cu(CHNO)(CHCO)]·HO, corresponds to a non-symmetric tetra-nuclear copper complex. The complex exhibits one ligand mol-ecule that connects two copper Cu metal centres its ethano-lato oxygen anion acting in a μ-mode and one ligand mol-ecule that connects three copper Cu metal centres its ethano-lato oxygen anion acting in a μ-mode. One bridging acetate group acting in an η:η-μ-mode connects two copper(II) ions while another bridging acetate group connects three copper(II) ions in an η:-η-μ-mode. A chair-like CuO structure is generated in which the two CuON units are connected by one μ-O ethano-late oxygen atom. These two units are connected respectively to the CuON unit one μ-O ethano-late oxygen atom and one μ-O atom from an acetate group. The μ-O atom also connects one of the CuON units and the CuON unit to another CuON unit, which is out of the chair-like structure. Each of the two penta-coordinated Cu cations has a distorted NO square-pyramidal environment. The geometry of each of the two CuNO units is best described as a slightly square-planar environment. A series of intra-molecular O-H⋯O hydrogen bonds is observed. In the crystal, the units are connected by inter-molecular C-H⋯O and O-H⋯O hydrogen bonds, thus forming sheets parallel to the plane.
标题分子结构，即（μ-乙酸根）（μ-乙酸根）-双-（μ-1,3-双-{[1-(2-氧化苯基)亚乙基]氨基}-丙-2-醇根）四铜（II）一水合物，[Cu(CHNO)(CHCO)]·HO，对应于一种不对称四核铜配合物。该配合物呈现出一个通过其乙醇酸根氧阴离子以μ模式连接两个铜Cu金属中心的配体分子，以及一个通过其乙醇酸根氧阴离子以μ模式连接三个铜Cu金属中心的配体分子。一个以η:η-μ模式起作用的桥连乙酸根基团连接两个铜（II）离子，而另一个桥连乙酸根基团以η:-η-μ模式连接三个铜（II）离子。形成了一个椅状的CuO结构，其中两个CuON单元通过一个μ-O乙醇酸根氧原子相连。这两个单元分别通过一个μ-O乙醇酸根氧原子和一个来自乙酸根基团的μ-O原子与CuON单元相连。μ-O原子还将其中一个CuON单元和CuON单元与椅状结构之外的另一个CuON单元相连。两个五配位的Cu阳离子中的每一个都具有扭曲的NO方锥环境。两个CuNO单元中的每一个的几何形状最好描述为略呈平面正方形的环境。观察到一系列分子内的O-H⋯O氢键。在晶体中，这些单元通过分子间的C-H⋯O和O-H⋯O氢键相连，从而形成平行于平面的片层。
