Zhong Kai-Long
Department of Applied Chemistry, Nanjing College of Chemical Technology, Nanjing 210048, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2013 Mar 1;69(Pt 3):m154-5. doi: 10.1107/S1600536813003772. Epub 2013 Feb 16.
The title compound, [Ni(SO4)(C10H8N2)(C2H6O2)(H2O)] n , contains two crystallographically unique Ni(II) atoms, each lying on a twofold rotation axis and having a slightly distorted octa-hedral environment. It is isotypic with the previously reported Cu(II) analog [Zhong et al. (2011 ▶). Acta Cryst. C67, m62-m64]. One Ni(II) atom is coordinated by two N atoms from two bridging 4,4'-bipyridine (4,4'-bipy) ligands, two O atoms from two sulfate ions and two aqua O atoms. The second Ni(II) atom is surrounded by two N atoms from 4,4'-bipy ligands and four O atoms, two from bridging sulfate ions and from two ethane-1,2-diol ligands. The sulfate anion acts as a bridging ligand, linking adjacent Ni(II) atoms, leading to the formation of linear ⋯Ni1-Ni2-Ni1-Ni2⋯ chains along the a-axis direction. Adjacent chains are further bridged by 4,4'-bipy ligands, resulting in a two-dimensional layered polymer parallel to (001). In the crystal, the polymeric layers are linked by extensive O-H⋯O hydrogen-bonding inter-actions involving the O atoms of the water mol-ecules and the ethane-1,2-diol mol-ecules, resulting in a three-dimensional supra-molecular network.
标题化合物[Ni(SO₄)(C₁₀H₈N₂)(C₂H₆O₂)(H₂O)]ₙ包含两个晶体学上独特的Ni(II)原子，每个原子位于一个二次旋转轴上，具有略微扭曲的八面体环境。它与先前报道的Cu(II)类似物[钟等人（2011年▶）。《晶体学报》C67，m62 - m64]同型。一个Ni(II)原子由来自两个桥连4,4'-联吡啶（4,4'-bipy）配体的两个N原子、来自两个硫酸根离子的两个O原子和两个水分子的O原子配位。第二个Ni(II)原子被来自4,4'-bipy配体的两个N原子和四个O原子包围，其中两个来自桥连硫酸根离子，两个来自两个1,2 - 乙二醇配体。硫酸根阴离子作为桥连配体，连接相邻的Ni(II)原子，导致沿a轴方向形成线性⋯Ni1 - Ni2 - Ni1 - Ni2⋯链。相邻的链通过4,4'-bipy配体进一步桥连，形成平行于(001)的二维层状聚合物。在晶体中，聚合物层通过涉及水分子和1,2 - 乙二醇分子的O原子的广泛的O - H⋯O氢键相互作用连接，形成三维超分子网络。
