Li Hui, Sun Hong, Chai Xiaochuan, Yao Chenzhong
Department of Applied Chemistry, Yuncheng University, Yuncheng, Shanxi 044000, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2012 Feb 1;68(Pt 2):m216. doi: 10.1107/S160053681200284X. Epub 2012 Jan 31.
In the title one-dimensional coordination polymer, {[Ni(CHO(2))(2)(C(20)H(14)N(4))(H(2)O)(2)]·2H(2)O}(n), the Ni(II) atom lies on a crystallographic inversion centre. It is coordinated by two formate O atoms, two water O atoms and two N atoms from two 1,4-bis-(1H-benzimidazol-1-yl)benzene (bzb) ligands, resulting in a distorted trans-NiN(2)O(4) octa-hedral coordination geometry. The bzb mol-ecule acts as a bridging ligand to connect the metal atoms into a chain propagating in [1[Formula: see text][Formula: see text]]. The dihedral angle between the benzimidazole ring and the central benzene ring in the ligand is 38.16 (9)°. In the crystal, O-H⋯O hydrogen bonds crosslink the chains into (010) sheets.
在标题一维配位聚合物{[Ni(CHO₂)₂(C₂₀H₁₄N₄)(H₂O)₂]·2H₂O}ₙ中，Ni(II)原子位于一个晶体学反演中心。它由两个甲酸根O原子、两个水分子O原子以及来自两个1,4-双(1H-苯并咪唑-1-基)苯(bzb)配体的两个N原子配位，形成扭曲的反式-NiN₂O₄八面体配位几何构型。bzb分子作为桥连配体将金属原子连接成在[1[化学式：见原文][化学式：见原文]]方向延伸的链。配体中苯并咪唑环与中心苯环之间的二面角为38.16 (9)°。在晶体中，O—H⋯O氢键将链交联成(010)平面。
