1402034-36-9Relevant articles and documents
1,10-phenanthroline and non-symmetrical 1,3,5-triazine dipicolinamide-based ligands for group actinide extraction
Bisson, Julia,Dehaudt, Jeremy,Charbonnel, Marie-Christine,Guillaneux, Denis,Miguirditchian, Manuel,Marie, Cecile,Boubals, Nathalie,Dutech, Guy,Pipelier, Muriel,Blot, Virginie,Dubreuil, Didier
, p. 7819 - 7829 (2014)
The synthesis and evaluation of new extractants for spent nuclear fuel reprocessing are described. New bitopic ligands constituted of phenanthroline and 1,3,5-triazine cores functionalized by picolinamide groups were designed. Synthetic routes were investigated and optimized to obtain twelve new polyaza-heterocyclic ligands. In particular, an efficient and versatile methodology was developed to access non-symmetric 2-substituted-4,6-di(6- picolin-2-yl)-1,3,5-triazines from the 1,3,5-triazapentadiene precursor in the presence of anhydride reagents. Extraction studies showed the ability of both ligand series to extract and separate actinides selectively at different oxidation states (UVI, NpV,VI, AmIII, Cm III, and PuIV) from an acidic solution (3 M HNO 3). Phenanthroline-based ligands show the most promising efficiency for use in the group actinide extraction (GANEX) process due to a higher number of donor nitrogen atoms and a suitable pre-organization of the dipicolinamide-1,10-phenanthroline architecture. Actinides/lanthanides extraction: The synthesis and evaluation of new bitopic ligands constituted of poly-aza-aromatic units functionalized by amide groups for spent nuclear fuel reprocessing is described. Original synthetic routes were investigated to obtain the ligands (see figure).
