A Novel Three-dimensional Ni Coordination Polymer Based on Flexible Di-carboxylate Ligand and 4,4′-P

• 作 者: 陈友存 庄杰 王素娜 王彦
• 机 构: Anhui Provincial Laboratory of Optoelectronic and Magnetism Functional Materials, School of Chemistr
• 出 处: 结构化学
• 发表日期: 2012年09期
• 关键词: carboxylate topological dithio bidentate hydrothermal topology refined bipyridin

A novel Ni(II) coordination polymer [Ni(dtba)(4,4′-bpy)] (1, H2dtba = 2,2′-dithio- bisbenzoic acid, 4,4′-bpy = 4,4′-bipyridine) has been synthesized by H2dtba and Ni(CH3COO)2·4H2O with exo-bidentate rigid ligand 4,4′-bpy by using hydrothermal method, and its structure was determined by single-crystal X-ray diffraction. X-ray crystal structure analysis reveals that complex 1 crystallizes in monoclinic, space group Cc with a = 11.7624(9), b = 18.7933(19), c = 10.3071(11), β = 97.6510(10)°, V = 2258.2(4)3, Z = 4, C24H16N2NiO4S2, Mr = 519.22, Dc = 1.527 g/cm3, μ = 1.079 mm-1 and F(000) = 1064. The structure was solved by direct methods and refined to R = 0.0434 and wR = 0.1000 for 3281 observed reflections (I > 2σ(I)). The coordination environment of Ni(II) is a distorted octahedron, and a three-dimensional structure was formed with the coordination effect of dtba2- and 4,4′-bpy ligands. The topological analysis reveals that the whole framework of 1 is a 2-nodal net of (52.6)(53.64.72.8) topology. The thermal stability and XRD pattern of 1 were also investigated.

A novel Ni (II) coordination polymer [Ni (dtba) (4,4’-bpy)] (1, H2dtba ​​= 2,2’-dithio-bisbenzoic acid, 4,4’-bpy = 4,4’-bipyridine ) has been synthesized by H2dtba ​​and Ni (CH3COO) 2 · 4H2O with exo-bidentate rigid ligand 4,4’-bpy by using hydrothermal method, and its structure was determined by single-crystal X-ray diffraction. X-ray crystal structure analysis reveals that complex 1 crystallizes in monoclinic space group Cc with a = 11.7624 (9), b = 18.7933 (19), c = 10.3071 (11) , β = 97.6510 (10) °, V = 2258.2 3 = Z = 4, C24H16N2NiO4S2, Mr = 519.22, Dc = 1.527 g / cm3, μ = 1.079 mm- 1 and F (000) = 1064. The structure was solved by direct methods and refined to R = 0.0434 and wR = 0.1000 for 3281 observed reflections (I> 2σ (I)). The coordination environment of Ni (II) is a distorted octahedron, and a three-dimensional structure was formed with the coordination effect of dtba2- and 4,4’-bpy ligands. The topological analysis reveals that the whole framework of 1 is a 2-nodal net of (52.6) (53.64.72.8) topology. The thermal stability and XRD pattern of 1 were also investigated.