Synthesis and Crystal Structure of One New Coordination Polymer： [Ni（qptc）0.5（bpp）（ H2O）]n

• 作者: ZHANG Wei ZHU Hui-Yuan
• 来源期刊: 结构化学
• 学科: 化学
• 关键词: 配位聚合物 晶体结构 H2O BPP X-射线衍射分析 过渡金属阳离子 镍 合成
• 年，卷（期）: 2012,（12）
• 页码范围: 1701-1706
• 页数: 6页
• 分类号: O614.121|O643.1
• 语种: 英文

摘要

Solvothermal reaction of aromatic terphenyl-2,5,2',5'-tetracarboxylic acid (H4qptc) ligand and the transitional metal cation of Nin in the presence of 1,3-bi(4-pyri- dyl)propane (bpp) affords one new coordination polymer, [Ni(qptc)0.5(bpp)(H2O)], (1). The structure has been determined by single-crystal X-ray diffraction analysis and further characterized by elemental analysis, IR, TGA, and magnetism. The qptc4- acts as a H-shaped ligand linking the NiⅡ centers together to form a 2D polymeric [Ni(qptc)0.5], layer consisting of alternately arranged left- and right-handed helical chains. Each 2D polymeric [Ni(qptc)0.5], layer is further linked through the bridging bpp ligands, thus resulting in a unique (3,4)- connected network with the (62.8)(62. 84) topology. The crystal of 1 crystallizes in monoclinic, space group C2/c with a = 16.088(5), b = 14.913(5), c = 18.849(6) A, β= 100.982(4), V= 4439(2) A3, Z= 8, C24H21N2NiO5, Mr = 476.14, Dc = 1.425 g/cm3, F(000) = 1976 and μ(MoKa) = 0.912 mm-1. The final R = 0.0584 and wR = 0.1131 for 3894 observed reflections with Ⅰ 〉 20(I) and R = 0.1224 and wR = 0.1279 for all data.