Synthesis and crystal structure of dinuclear nickel (Ⅱ) complex

• 作 者: 刘盛华 谌了容 付恩琴 吴成泰
• 机 构: Department of Chemistry, Wuhan University, Wuhan ,430072, Hubei, China ,Center of Analysis and Testi
• 出 处: Chinese Journal of Chemistry
• 发表日期: 1999年01期
• 关键词: dinuclear complex diacetate bridged monoclinic coordinated distorted hydroxyl ni

The crystal structure of Ni(Ⅱ) complex with 3-hydroxyl-1, 5-diazacycloheptane-N, N’-diacetate was determined by X-ray diffraction method. Crystal data for Ni2 (C9H14N2O5)2·2H2O: monoclinic, space group P21/n, a = 1.1717(5), b = 0.9794(3), c = 1.2971(2) nm, β= 96.62(3), V= 1.4786(7) nm3, Dc = 1.377 g/cm3, Z = 2,μ=13.321 cm-1 (Mo-Kα), F(000)=640. The final R and Rw are 0.075 and 0.089 respectively. The Ni(Ⅱ) ion forms 2:2 complex with ligand. Two ligands are bridged by two Ni(Ⅱ) atoms which are bridged by two O atoms. Every Ni(Ⅱ) is coordinated by two N atoms and four 0 atoms. The coordination polyhedron of the Ni(Ⅱ) ion is a distorted octahedron.

Crystal structure of Ni (Ⅱ) complex with 3-hydroxyl-1, 5-diazacycloheptane-N, N’-diacetate was determined by X-ray diffraction method. Crystal data for Ni2 (C9H14N2O5) 2 · 2H2O: monoclinic, space group = 21.771 (2) nm, β = 96.62 (3), V = 1.4786 (7) nm3, Dc = 1.377 g / cm3, and Z = 2, μ = 13.321 cm-1 (Mo-Kα), F (000) = 640. The final R and Rw are 0.075 and 0.089 respectively. The Ni (Ⅱ) ion forms 2: 2 complex with ligand. The coordination polyhedron of the Ni (II) ion is a distorted octahedron.