Formation and structure of mixed quaternary chelates with late-lanthanide metal ions

被引:6
作者
Hayashi, K
Nagao, N
Harada, K
Haga, M
Fukuda, Y [1 ]
机构
[1] Ochanomizu Univ, Fac Sci, Dept Chem, Bunkyo Ku, Tokyo 1128610, Japan
[2] Meijo Univ, Dept Ind Chem, Kawasaki, Kanagawa 2148571, Japan
[3] Inst Mol Sci, Coordinat Chem Labs, Okazaki, Aichi 4448585, Japan
关键词
D O I
10.1246/cl.1998.1173
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We have newly obtained two series of late-lanthanide metal complexes with three different kinds of chelating ligands (quaternary system), [Ln(dike)(3-n)(NO3)(n)(terpy)] where Ln(III) = Er(III) or ro(III), dike = beta-diketonate such as acetylacetonate (acac) or 1,1,1,5,5,5-hexafluoroacetylacetonate (hfac), and terpy = 2,2' :6',2 "-terpyridine; n = 2 (for acac) or 1 (for hfac). Crystal structures for the Yb(III) complexes show that in both series the pentagonal plane around the central Yb3+ ion with terpy and one dike ligand is formed. The other chelating ligands coordinate up and down from the plane to form totally 9 coordination around Yb3+.
引用
收藏
页码:1173 / 1174
页数:2
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