The Radiolytic and Thermal Stability of Diamides of Dipicolinic Acid

Hard-and-soft phosphinoxide receptors for f-element binding: structure and photophysical properties of europium(iii) complexes

“…[15][16][17] N,O-Polydentate hard-and-soft heterocyclic compounds attract attention as ligands for REE complexes due to their distinguished photophysical 5,[18][19][20] and magnetic 21 properties and also due to their ability to discriminate ions of f-elements by their size. [22][23][24][25][26][27][28][29][30][31][32][33] Over several years we have designed novel types of N,N′,O,O′-tetradentate bypyridyl-based reagents for the selective separation of actinides from lanthanides 9,34-37a significant radiochemical problem in the field of closed nuclear fuel cycle development. 38 REE complexes with this new type of ligand possess promising photophysical properties which have been studied in detail along with the structure of the complexes.…”

Testing a simple approach for theoretical evaluation of radiolysis products in extraction systems. A case of N,O-donor ligands for Am/Eu separation

“…Although extraction properties of diamides of heterocyclic acids (pyridine-2,6-dicarboxylic, 2,2 0 -bipyridine-6,6 0 -dicarboxylic and 1,10-phenantroline-2,9-dicarboxylic) towards actinides and lanthanides are well described the literature, [12][13][14] the data on their radiolytic stability is limited by those for the diamides of pyridine-2,6-dicarboxylic acid. 15,16 The ligand (1) have earlier demonstrated high selectivity for separation of neighboring pairs of rare earth elements (REE), 17 and the ligand (2) have demonstrated high selectivity for separation Am/Eu pair. 18 A weakly polar mixture of 1-dodecanol and "Isopar-M" (mixture of branched hydrocarbons) was used as a solvent in both cases.…”

Stability trend analysis of light lanthanide complexes with a fluorophenyl-dipicolinamide: A quantum chemical study

“…Amide and diamide groups have been investigated extensively over the years as one of the possible solutions. Compared to the organophosphorus compounds such as octyl(phenyl)-N,N-diisobutyl carbamoyl methyl phosphine oxide (CMPO) and trialkyl phosphine oxide (TRPO) [15][16][17][18], they are incinerable, highly soluble, more cost-effective and have relatively benign radiolysis products [16][17][18][19][20][21], which can be treated more easily in wastewater. Substituents on nitrogen in the diamide series have been found to in uence extraction performance and solubility signi cantly [22], Comparing a number of diamide groups with different substituents, M. Yu.…”