SYNTHESES AND CHARACTREIZATIONS OF SOME TERNARY RARE EARTH METAL COMPLEXES OF NAPHTHOYL TRIFLUOROACETONE AND BIS-PYRIDINE
Triệu Thị Nguyệt
Nguyễn Minh Hải
Nguyễn Hùng Huy
Đinh Thị Hiền
Abstract
Ternary complexes of rare earth metals Y, Pr, Sm, Eu, Tb, Ho with naphthoyl trifluoroacetone and bis-pyridine were prepared. IR and NMR spectroscopies were utilized for structural characterizations of the complexes. The results confirmed that the coordinated water molecules were displaced by bis-pyridine and that the coordination of the central metal ion is through oxygen atoms of β-diketone ligand and nitrogen atoms of bis-pyridine.