SYNTHESIS AND CHARACTERISATION OF SOME TERNARY RARE EARTH METAL COMPLEXES OF NAPHTHOYLTRIFLOACETONE AND 2,2’-DIPYRIDYL N,N’-DIOXIDE
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 trifluoroaceton and 2,2'-dipyridyl N,N'-dioxide were prepared. IR and NMR spectroscopies were utilized for structural characterizations of the complex. The results confirmed that the coordinated water molecules were displaced by 2,2'-dipyridyl N,N'-dioxide and that the coordination of the central metal ion is through oxygen atoms of β-diketone ligand and oxygen atoms of 2,2'-dipyridyl N,N'-dioxide.