| 基于5-(4-(2,6-二(2-吡啶基)-4-吡啶基)苯氧基)间苯二甲酸的Ni(Ⅱ)和Cd(Ⅱ)配位聚合物的合成与晶体结构 |
| Syntheses and Crystal Structures of Ni(Ⅱ) and Cd(Ⅱ) Coordination Polymers Based on 5-(4-(2,6-Di(pyrizin-2-yl)pyridin-4-yl)phenoxy)isophthalic Acid |
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| 摘要: 用溶剂热法合成了2个以5-(4-(2,6-二(2-吡啶基)-4-吡啶基)苯氧基)间苯二甲酸(H2L)为配体的金属-有机配位聚合物：{[NiL(H2O)]·H2O}n (1),[CdL(phen)]n (2)。通过X-射线单晶衍射,元素分析和红外光谱进行了结构表征。结构分析表明,在1中,L2-配体的2个羧基氧原子桥连相邻的2个Ni(Ⅱ)离子,形成平行于a轴的一维链,链间则通过吡啶氮原子与金属离子连接,最终形成具有(4,4)-连接三维网络结构。在2中,Cd(Ⅱ)为七配位的单帽三棱柱几何构型,L2-配体通过2个羧基和1个吡啶基与3个中心金属Cd(Ⅱ)相连,形成(3,3)-连接的二维层面结构,又通过面间的π…π堆积作用形成了3D超分子结构。测定了配位聚合物的热稳定性和2的荧光性质。 |
| 关键词: 配位聚合物 5-(4-(2,6-二(2-吡啶基)-4-吡啶基)苯氧基)间苯二甲酸 晶体结构 荧光性质 |
| 基金项目: 国家自然科学基金(No.21173197)资助项目。 |
| Abstract: Two new metal-organic coordination polymers {[NiL(H2O)]·H2O}n (1), [CdL(phen)]n (2) (H2L=5-(4-(2,6-di(pyrizin-2-yl)pyridin-4-yl)phenoxy)isophthalic acid) have been synthesized under solvothermal conditions and characterized by single crystal X-ray diffraction analysis. Complex 1 features a (4,4)-connected 3D network. The carboxylate groups of the L2- ligands bridges two Ni(Ⅱ) ions into one 1D chain, then the neighboring chains are further interconnected by the N atoms of the L2- ligands to generate a 3D net. Complex 2 displays a (3,3)-connected 2D framework and further linked by π…π interactions between aromatic rings with a centroid-centroid distance of 0.365 2 nm into the final 3D net, in which the Cd(Ⅱ) is seven-coordinated in one-capped trigonol prismatic geometry. Thermogravimetric analyses (TGA) have been measured for 1 and 2. Luminescent properties of 2 were investigated. |
| Keywords: coordination polymer 5-(4-(2,6-di(pyrizin-2-yl)pyridin-4-yl)phenoxy)isophthalic acid crystal structure luminescent property |
| 投稿时间：2015-06-12 修订日期：2015-09-12 |
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| 王桂仙,曹可利,陈飞燕,冯云龙.基于5-(4-(2,6-二(2-吡啶基)-4-吡啶基)苯氧基)间苯二甲酸的Ni(Ⅱ)和Cd(Ⅱ)配位聚合物的合成与晶体结构[J].无机化学学报,2016,32(1):43-48. |
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