摘要
在水溶液中合成了两个钒-稀土配合物NH4[Ln(H2O)9][(VIVO)2(μ2-O)(nta)2](Ln=Sm,Y),其中钒-钐配合物为单晶体,钒-钇配合物为多晶态粉末。单晶X-射线衍射分析表明,钒-钐配合物属单斜晶系,C2/c空间群,晶胞参数a=2.336(4),b=1.0907(9),c=1.0823(10)nm,β=93.21(2)°,V=2.753(6)nm3,Z=4。配合物包含了一个二核的钒阴离子[(VIVO)2(μ2-O)(nta)2]4-(H3nta=氨三乙酸)和一个九配位的钐阳离子[Sm(H2O)9]3+,两者通过氢键连接成三维超分子结构。
Two V-Ln complexes NH4[Ln(H2O)9][(VIVO)2(μ2-O)(nta)2](Ln=Sm,Y) have been synthesized in the water solution.The V-Sm complex is characterized by single crystal X-ray diffraction,the result shows that it stallizes in triclinic C2/c space group with crystal cell parameters of a = 2.336(4),b = 1.0907(9),c = 1.0823(10) nm,β = 93.21(2)°,V=2.753(6) nm3,Z = 4.The complex contains a binuclear vanadium [(VIVO)2(μ2-O)(nta)2]4-anion(H3nta = nitrilotriacetic acid) and one [Sm(H2O)9]3+ cation,and the three-dimensional supramolecule structure is formed by the hydrogen bonding interactions.
出处
《稀土》
EI
CAS
CSCD
北大核心
2012年第3期1-5,共5页
Chinese Rare Earths
基金
结构化学国家重点实验室基金资助项目(20110012)
关键词
钒
稀土
氨三乙酸
vanadium
rare earth
nitrilotriacetic acid