【作者】 杨宗斐； 梁志结； 王敬平； 牛景杨；

【Author】 Zongfei Yang;Zhijie Liang;Jingping Wang;Jingyang Niu;Henan Key Laboratory of Polyoxometalate Chemistry, School of Chemistry and Chemical Engineering, Henan University;

【机构】 河南省多酸化学重点实验室河南大学化学化工学院；

【摘要】 近年来,多铌氧酸盐在废物处理、药物治疗和催化等方面具有潜在的应用价值,引起了人们的广泛关注^[1,2]。本文通过常规水浴和扩散法相结合的策略合成一例稀土金属Er³⁺离子桥连的一维链状过氧铌磷酸盐,Cs₃H₂₅[Er₂P₄Nb₆（O₂）₆O₃₆]·10H₂O。X-射线单晶衍射分析表明,该化合物由1个[Er₂P₄Nb₆（O₂）₆O₃₆]^28?阴离子（1a）,3个Cs⁺离子,25个H⁺离子及10个结晶水分子组成。阴离子1a之间通过Er³⁺离子桥连形成一维链状结构（Fig.1）。该阴离子中所有Nb⁵⁺离子均是七配位五角双锥几何构型,晶体学独立的两个P⁵⁺离子为四配位四面体构型。更多还原

【Abstract】 Polyoxoniobates （PONs） have attracted significant interest because of their potential application in different areas,such as nuclear-waste treatment,virology,and catalysis.Herein,we present an 1D Er-bridgeed peroxoniobiophosphate,Cs₃H₂₅[Er₂P₄Nb₆（O₂）₆O₃₆]·10H₂O,which was synthesized by conventional aqueous and diffusion method.Single-crystal X-ray crystallography reveals that the compound consists of one{Er₂P₄Nb₆（O₂）₆O₃₆}^28?,three Cs⁺,25 H⁺and ten crystal waters.It is noted that these polyanions 1a were linked together through Er³⁺ions,generating an 1D chain-like architecture.All the Nb centers are seven-coordinate and adopt a pseudo-octahedral configuration.Comparatively,both the two{PO₄}groups are tetrahedral geometry.更多还原