In this study,a sandwich-type uranium(Ⅵ)-containing silicotungstate KNa11H2(H2O)30[Na(UO2)(SiW9O34)]2·8H2O(1)with new three-dimensional(3D)structure was synthesized and characterized using single-crystal X-ray d...In this study,a sandwich-type uranium(Ⅵ)-containing silicotungstate KNa11H2(H2O)30[Na(UO2)(SiW9O34)]2·8H2O(1)with new three-dimensional(3D)structure was synthesized and characterized using single-crystal X-ray diffraction,Fourier transform infrared,Raman,solid-state ultraviolet–visible diffuse reflection spectra,thermogravimetric analysis and powder X-ray diffraction.Single crystal analysis revealed that the Na(I)-H2O clusters in 1 showed a two-dimensional structure similar to(4,4)-network and resulted in the formation of a new 3D structure of 1.In addition,it was notable that 1 presented excellent catalytic activity for the synthesis of substituted phenylsulfonyl-1H-pyrazoles via the cyclization reaction of 1,3-diketones with various substituted benzenesulfonyl hydrazides.展开更多
基金supported by the National Natural Science Foundation of China (Grant No. 22001034)the Open Fund of the Jiangxi Province Key Laboratory of Synthetic Chemistry (Grant No. JXSC202008)the Research Found of East China University of Technology (Grant Nos. DHBK2019264, DHBK2019265, DHBK2019267)
文摘In this study,a sandwich-type uranium(Ⅵ)-containing silicotungstate KNa11H2(H2O)30[Na(UO2)(SiW9O34)]2·8H2O(1)with new three-dimensional(3D)structure was synthesized and characterized using single-crystal X-ray diffraction,Fourier transform infrared,Raman,solid-state ultraviolet–visible diffuse reflection spectra,thermogravimetric analysis and powder X-ray diffraction.Single crystal analysis revealed that the Na(I)-H2O clusters in 1 showed a two-dimensional structure similar to(4,4)-network and resulted in the formation of a new 3D structure of 1.In addition,it was notable that 1 presented excellent catalytic activity for the synthesis of substituted phenylsulfonyl-1H-pyrazoles via the cyclization reaction of 1,3-diketones with various substituted benzenesulfonyl hydrazides.
