Structure and dynamics of all of the stereoisomers of europium complexes of tetra(carboxyethyl) derivatives of dota:: ring inversion is decoupled from cooperative arm rotation in the RRRR and RRRS isomers

被引:85
作者
Howard, JAK
Kenwright, AM
Moloney, JM
Parker, D
Port, M
Navet, M
Rousseau, O
Woods, M
机构
[1] Univ Durham, Dept Chem, Durham DH1 3LE, England
[2] Guerbet SA, F-95943 Roissy, France
关键词
D O I
10.1039/a802847h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The absolute configuration of the four stereoisomeric alpha-substituted derivatives of dota has been defined; in their Eu complexes, 2D-NMR methods have revealed that in solution ring inversion is independent of pendant arm rotation and the (RRRR)-[EuL1a] complex which in the solid state crystallises as a square antiprismatic structure.
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收藏
页码:1381 / 1382
页数:2
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