f-Element coordination and extraction selectivity of a carbamoylmethylphosphine oxide ligand based on a tripodal phosphine oxide scaffold
作者： Katherine M. Coburn , David A. Hardy , Michael G. Patterson , Shelby N. McGraw , Michael T. Peruzzi
DOI: 10.1016/J.ICA.2016.05.003
关键词: Inorganic chemistry 、 Tripodal ligand 、 Chemistry 、 Oxide 、 Phosphine oxide 、 Lanthanide 、 Ligand 、 Nitric acid 、 Selectivity 、 Extraction (chemistry)
摘要: Abstract We report here the synthesis and study of a multipodal ligand bearing three CMPO units attached to trialkylphosphine oxide cap along with resultant Ln3+, Th4+ UO22+ metal complexes. This tripodal demonstrates extraction efficiencies 47% 44% for actinide species Th(NO3)4 UO2(NO3)2 out 1 M nitric acid into solution dichloromethane, while all lanthanide nitrates were extracted relatively low efficiencies. Further studies utilizing 5 M solutions resulted in nearly quantitative extraction. The ability this sensitize metal-centered luminescence Eu3+ Tb3+ DMSO was also investigated. Finally, possible conformations structure [La(NO3)-ligand]2+ complex calculated using density functional theory.
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