Chen Fang-Jun, Xu Hai, Xu Hui, Huang Ke-Long
Department of Chemistry, Central South University, Changsha 410083, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2009 Apr 22;65(Pt 5):m540. doi: 10.1107/S1600536809013750.
The title binuclear Zn(II) compound, [Zn(2)(C(12)H(9)O(3))(4)(H(2)O)(2)], is centrosymmetric. Each Zn atom is coordinated by two bridging 2-naphthoxyacetate anions, one terminal 2-naphth-oxy-acetate anion and one water mol-ecule in a distorted ZnO(4) tetra-hedral geometry. The naphthalene system of the bridging ligand is nearly perpendicular to the naphthalene of the terminal ligand, with a dihedral angle of 78.26 (6)°. Within the binuclear mol-ecule the Zn⋯Zn separation is 3.815 (5) Å. In the crystal structure, inter-molecular O-H⋯O hydrogen bonding between the water mol-ecule and carboxyl-ate groups helps to stabilize the crystal structure.
双核锌（II）化合物[Zn₂(C₁₂H₉O₃)₄(H₂O)₂]为中心对称结构。每个锌原子由两个桥连的2-萘氧基乙酸根阴离子、一个末端2-萘氧基乙酸根阴离子和一个水分子配位，呈扭曲的ZnO₄四面体几何构型。桥连配体的萘环系统与末端配体的萘环近乎垂直，二面角为78.26 (6)°。在双核分子中，锌⋯锌间距为3.815 (5) Å。在晶体结构中，水分子与羧酸根基团之间的分子间O-H⋯O氢键有助于稳定晶体结构。
