吡唑-3-甲酸配合物的合成、晶体结构及磁性质研究

本文通过恒温水浴法和溶剂热法分别合成了两种配合物Fe(3PCA)2(H2O)2(1)和[Cu(3PCA)(Im)]n(2)(3PCA=pyrazole-3-carboxylic acid,Im=imidazole),并用X-射线单晶衍射仪测定了它们的晶体结构。结果表明:配合物(1)属于单斜晶系,空间群为P21/c,晶胞参数为:a=5.11446(19),b=11.4930(4),c=9.4084(3),β=95.692(4)°,V=550.30(3)3,Z=2;配合物(2)属于单斜晶系,空间群为P21/c,晶胞参数为:a=11.7198(4),b=8.5094(3),c=8.9703(3),β=111.765(4)°,V=830.82(5)3,Z=4。对配合物(2)进行了磁性质研究,结果表明,铜离子之间存在反铁磁相互作用。     

A New Zn(Ⅱ) Coordination Polymer Constructed from 1,3,5-Benzenetricarboxylate Ligand Exhibiting Photoluminescence

The title Zn(II) coordination polymer {[Zn_2(BTC)(HBTC)(dpa)(Hdpa)]·3H_2O}_n(1,H_3BTC = 1,3,5-benzenetricarboxylic acid,dpa = 4,4?-dipyridylamine),has been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction,powder X-ray diffraction,IR spectroscopy and Fluorescence spectroscopy.Complex 1 belongs to the triclinic system,space group P1,a = 9.9415(4),b = 13.5859(8),c = 15.2987(5) ?,α = 96.301(4),β = 107.944(3),γ = 103.575(4)°,V = 1873.48(14) ?~3,Z = 2,μ = 1.365 mm~(-1),Dc = 1.672 g/cm~3,Mr = 943.44,F(000) = 964,the final R = 0.0314 and wR = 0.0710 with I 2σ(I).Complex 1 displays a two-dimensional bilayer coordination polymer.Complex 1 shows fluorescence in the solid state at room temperature.     

1,2,4-苯三甲酸与2,2-联吡啶构筑的银(Ⅰ)和镉(Ⅱ)配合物的合成、晶体结构、热稳定性及荧光性质

通过pH调控的水热法合成了2种配合物[Ag(H2btc)(bpy)](1)和[Cd(Hbtc)(bpy)(H2O)2]n(2)(H3btc=1,2,4-苯三甲酸,bpy=2,2′-联吡啶),并通过X射线单晶衍射、红外光谱、热重分析、荧光光谱进行了表征与性质研究。结果表明,配合物1为零维的单核小分子结构,配合物2为一维的链状结构。荧光研究表明,这2种配合物均具有荧光性质。