Americium(III) and europium(III) solvent extraction studies of amide-substituted triazine ligands and complexes formed with ytterbium(III)

被引：56

作者：

Boubals, N

Drew, MGB ^{[1
]}

Hill, C

Hudson, MJ

Iveson, PB

Madic, C

Russell, ML

Youngs, TGA

机构：

[1] Univ Reading, Dept Chem, Reading RG6 6AD, Berks, England

[2] DEN DRCP SCPS LCSE, Commissariat Energy Atom, F-30207 Bagnols Sur Ceze, France

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 2002年 / 01期

关键词：

D O I：

10.1039/b104181a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

4-Amino-bis(2,6-(2-pyridyl))-1,3,5-triazine L-4 and several, amide derivatives with hydrophobic alkyl substituents have been synthesised. Solvent extraction studies carried out on Am(III) and Eu(III) with L-4 and its amide derivatives in synergistic combination with alpha-bromodecanoic acid, show that these ligands can selectively extract actinides with respect to lanthanides. The structures of [H2L4].2Cl.2.5H(2)O and two amide derivatives have been determined and show respectively the trans, trans; cis, cis; and cis, trans conformations of the adjacent aromatic rings. These observed conformations are in agreement with the results of quantum mechanics calculations on L-4 and its protonated derivatives. The structures of two Yb complexes with amide derivatives are also reported with stoichiometry [Yb(L)(NO3)(H2O)(4)].2NO(3).0.5H(2)O and [Yb(L)(NO3)(3)(H2O)].2MeCN and show the metal in 9 coordinate environments.

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页码：55 / 62

页数：8

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