2,6-Bis(5-(2,2-dimethylpropyl)-1<i>H</i>-pyrazol-3-yl)pyridine as a Ligand for Efficient Actinide(III)/Lanthanide(III) Separation
作者:Antje Bremer、Christian M. Ruff、Denise Girnt、Udo Müllich、Jörg Rothe、Peter W. Roesky、Petra J. Panak、Alexei Karpov、Thomas J. J. Müller、Melissa A. Denecke、Andreas Geist
DOI:10.1021/ic3000526
日期:2012.5.7
actinides and lanthanides with C5-BPP was studied. The solid-state compounds [Ln(C5-BPP)(NO3)3(DMF)] (Ln = Sm(III), Eu(III)) were synthesized, fully characterized, and compared to the solution structure of the Am(III) 1:1 complex [Am(C5-BPP)(NO3)3]. The high stability constant of log β3 = 14.8 ± 0.4 determined for the Cm(III) 1:3 complex is in line with C5-BPP’s high distribution ratios for Am(III) observed
合成了N-供体络合配体2,6-双(5-(2,2-二甲基丙基)-1 H-吡唑-3-基)吡啶(C5-BPP),并筛选出对三价act系阳离子有选择性的萃取剂在镧系元素上。C5-BPP从高达1 mol / L的HNO 3中提取Am(III),与Eu(III)的分离系数约为100。由于其作为萃取剂的良好性能,三价act系元素和镧系元素与C5-研究了BPP。合成了固态化合物[Ln(C5-BPP)(NO 3)3(DMF)](Ln = Sm(III),Eu(III)),对其进行了充分表征,并将其与Am( III)1:1络合物[Am(C5-BPP)(NO 3)3 ]。logβ的高稳定常数对于Cm(III)1:3配合物确定的3 = 14.8±0.4与提取实验中观察到的C5-BPP对Am(III)的高分布比率一致。