Synthesis,Crystal Structure and Characterization of the Coordination Polymer [Ni_2(2-mpac)_4(4,4

• 作 者: 范广 张引莉 孙家娟 徐维霞 郑敏燕 马占营 陈三平 高胜利
• 机 构: College of Chemistry & Chemical Engineering,Xianyang Normal University,College of Chemistry & Materi
• 出 处: 结构化学
• 发表日期: 2010年08期
• 关键词: structurally bipyridine monoclinic aromatic mononuclear Ni_2 bpy mpac supramolec

Utilizing mononuclear complex Ni(2-mpac)2(H2O)2 as the molecular building block,a novel coordination polymer [Ni2(2-mpac)4(4,4’-bpy)·2H2O]n(1,2-mpac = 5-methyl-2-pyrazinecar-boxylic acid,4,4’-bpy = 4,4’-bipyridine) was successfully synthesized and structurally characterized by X-ray single-crystal diffraction method.Crystal data:monoclinic,space group C2/c,a = 23.870(1),b = 9.887(4),c = 18.929(9) ,β = 126.840(5)°,V = 3575(3) 3,Z = 4,S = 1.046,μ = 1.594 mm-1,F(000) = 1768 and Dc = 1.127 g·cm-3.The final R = 0.0351 and wR = 0.0792 for 2372 observed reflections with Ⅰ > 2σ(Ⅰ) and R = 0.0564 and wR = 0.0938 for all reflections.

Utilizing mononuclear complex Ni (2-mpac) 2 (H2O) 2 as the molecular building block, a novel coordination polymer [Ni2 (2-mpac) 4 (4,4’-bpy) = 5-methyl-2-pyrazinecar-boxylic acid, 4,4’-bpy = 4,4’-bipyridine was successfully synthesized and structurally characterized by X-ray single-crystal diffraction method. Crystal data: monoclinic, space group C2 / c, a = 23.870 (1), b = 9.887 (4), c = 18.929 9, β = 126.840 (5) °, V = 3575 33, Z = 4, S = 1.046, μ = 1.594 mm-1, F (000) = 1768 and Dc = 1.127 g · cm-3. The final R = 0.0351 and wR = 0.0792 for 2372 observed reflections with I> 2σ (I) and R = 0.0564 and wR = 0.0938 for all reflections.