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在水热条件下,通过CuCl2 6H2O、5-(2-吡啶基)-四唑与不同的金属氧簇阴离子反应,合成了3个基于金属氧簇与铜-四氮唑构建的空旷骨架:Cu4(2-ptz)4(H2O)7SiW12O40 4H2O(1),Cu5(2-ptz)6(OH)(H2O)3PW12O40 H2O(2),Cu9(μ-O)6(2-ptz)6(H2O)9(H6P2W18O62)3H2O(3)(2-ptz=5-(2-吡啶基)-四唑),并通过元素分析、红外光谱、热失重曲线、紫外-可见光谱、粉末衍射和单晶X射线衍射等手段进行了表征.结构分析表明:它们均为三维结构.化合物1是由分立的Z字形的Cu-(2-ptz)配合物单元与412 40SiW O-簇阴离子连接而成;化合物2是由二维的Cu-(2-ptz)网络与312 40PW O-簇单元桥连形成的;化合物3则是一个不常见的基于一维Cu-(2-ptz)链与62 18 62P W O-簇单元构建的.磁性研究结果表明:化合物1和2表现出反铁磁性,而化合物3表现出不常见的亚铁磁性.
Under hydrothermal conditions, three open frameworks based on metal oxygen clusters and copper-tetrazole were synthesized by the reaction of CuCl2 6H2O and 5- (2-pyridyl) -tetrazole with different metalloxide anions: Cu4 (2-ptz) 4 (H2O) 7SiW12O40 4H2O (1), Cu5 (2-ptz) 6 (OH) (H2O) 3PW12O40 H2O (2-ptz = 5- (2-pyridyl) -tetrazole) was synthesized and characterized by elemental analysis, IR, TG, UV-Vis and powder X-ray diffraction Diffraction and other means.The structure analysis shows that they are all three-dimensional structures.The compound 1 is formed by the connection of the discrete z-shaped Cu- (2-ptz) complex with the anion of 41240SiW O-cluster and the compound 2 is Is formed by bridging the two-dimensional Cu- (2-ptz) network with the 31240PW O-cluster unit; while compound 3 is an uncommon one based on the one-dimensional Cu- (2-ptz) The results of magnetic studies show that compounds 1 and 2 exhibit antiferromagnetism, while compound 3 exhibits unusual ferrimagnetism.