Exploring electronic effects on the partitioning of actinides(<scp>iii</scp>) from lanthanides(<scp>iii</scp>) using functionalised bis-triazinyl phenanthroline ligands
作者:Alyn C. Edwards、Christoph Wagner、Andreas Geist、Neil A. Burton、Clint A. Sharrad、Ralph W. Adams、Robin G. Pritchard、Petra J. Panak、Roger C. Whitehead、Laurence M. Harwood
DOI:10.1039/c6dt02474b
日期:——
5,8,8-tetramethyl-5,6,7,8-tetrahydro-1,2,4-benzo-triazin-3-yl)-1,10-phenanthroline (CyMe4-BTPhen) ligands are reported herein. Evaluating the kinetics, selectivity and stoichiometry of actinide(III) and lanthanide(III) radiotracer extractions has provided a mechanistic insight into the extraction process. For the first time, it has been demonstrated that metal ion extraction kinetics can be modulated
4,7-二取代的2,9-双(5,5,8,8-四甲基-5,6,7,8-四氢-1,2,4-苯并三嗪-3-基)的第一个例子本文报道了1,10-菲咯啉(CyMe 4 -BTPhen)配体。评估动力学,选择性和锕系元素的化学计量(III)和镧系元素(III)的放射性示踪剂提取提供了对提取过程的机械洞察力。首次证明,可以通过主链官能团调节金属离子的萃取动力学,并且已经鉴定出具有增强的金属离子萃取动力学的有希望的新的符合CHON的候选配体。4,7-官能化对平衡金属离子分布比的影响远比5,6-官能化的影响更为明显。通过TRLFS研究了Cm(III)与两个官能化配体的络合,并且在平衡时仅观察到化学计量为1:2 [M:L]的物种。E LUMO – E HOMO之间的直接关联 报告了能隙和金属离子的提取潜力,DFT研究证实了实验结果。