稀土镱(Ⅲ)-氨基多羧酸类配合物配位结构研究

INVESTIGATION ON COORDINATE STRUCTURES OF Yb(Ⅲ) COMPLEXES WITH AMINOPOLYCARBOXYLIC ACIDS

报导了稀土Yb( )与系列氨基多羧酸类配体形成配合物的分子和晶体结构.根据九配位K3[Yb(nta)2(H2O)].5H2O(nta=氨三乙酸),(NH4)4[Yb2(dtpa)2].9H2O(dtpa=二乙三胺五乙酸),和八配位Na3[Yb(nta)2].6H2O,K3[Yb(nta)2].5H2O,NH4[Yb(Cydta)(H2O)2].5H2O(Cydta=反式-1,2-环己二胺四乙酸)配合物的结构,探索了稀土金属离子Yb( )与一系列氨基多羧酸类配体形成配合物的配位规律.

The molecular and crystal structures of rare earth metal Yb(Ⅲ) (Ytterbium) complexes with aminopolycarboxylic acids were reported.The coordination low of Yb(Ⅲ) complexes with aminopolycarboxylic acids was explored in according to the coordinate structures of ninecoordinated K3·5H2O(nta=nitrilotriacetic acid),(NH4)4·9H2O(dtpa=diethylenetriaminepentaacetic acid),eightcoordinated Na3·6H2O,K3·5H2O,and NH4·5H2O(Cydta=trans1,2cyclohexanediaminetetraacetic acid).