A holmium complex of a macrocyclic ligand (DOTA) and its isostructural europium analogue

被引:45
作者
Benetollo, F [1 ]
Bombieri, G
Aime, S
Botta, M
机构
[1] CNR, ICTIMA, I-35127 Padua, Italy
[2] Univ Milan, Ist Chim Farmaceut, I-20131 Milan, Italy
[3] Univ Turin, Dipartimento Chim, IFM, I-10125 Turin, Italy
关键词
D O I
10.1107/S0108270198014450
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The holmium and europium complexes of the tetraanion of 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (H(4)DOTA), namely, sodium aqua(1,4,7, 10-tetraazacyclododecane-1,4,7, 10-tetraacetato)holmium(III) tetrahydrate, Na[Ho(C16H24N4O8)(H2O)]. 4H(2)O, and sodium aqua(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetato)europium(III) tetrahydrate, Na[Eu(C16H24N4O8)(H2O)]. 4H(2)O, show nine-coordination around the metal ion, with a square antiprismatic coordination geometry involving four N- and four O-donor atoms of the DOTA ligand, and a coordinated water molecule in a capping position.
引用
收藏
页码:353 / 356
页数:4
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