OALib Journal期刊
ISSN: 2333-9721
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基于金属氧簇和铜-四氮唑配合物构建的空旷骨架:合成、结构及性能
DOI: 10.6023/A12090706, PP. 179-185
Keywords: 金属氧簇,空旷骨架,有机-无机杂化材料,水热合成,磁性能
Abstract:
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SiW12O404-簇阴离子连接而成;化合物2是由二维的Cu-(2-ptz)网络与PW12O403-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PW18O626-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.
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