Pyridine-di-phosphonates as chelators for trivalent f-elements: kinetics, thermodynamic and interfacial study of Am(iii)/Eu(iii) solvent extraction

Abstract

The fractionation of high-level radioactive waste from nuclear power plants simplifies the handling of its components, and facilitates the reduction of radiotoxic effects on the environment. The search and study...

Kinetic features of solvent extraction by N,O-donor ligands of f-elements: a comparative study of diamides based on 1,10-phenanthroline and 2,2′-bipyridine

“…In ref. 84, extraction kinetics and surface tension were also compared. The results indicated that while the surface properties of the extractant do influence the extraction rate, they are not the only determinant.…”

“…This calculation scheme was successfully applied in the previous studies. 58 All optimized structures do not have imaginary frequencies. The Ahlrichs polarized basis set def2-TZVP 59 with triple z quality 60 was employed for all atoms.…”

Sensing and extraction of hazardous metals by di-phosphonates of heterocycles: a combined experimental and theoretical study

“…Detailed information on the synthesis of pyridine-based ligands is presented in ref. 27. The synthesis of the phenanthroline ligand was carried out similarly 20 (see the ESI † for more information on spectral characterization of Phen-PO-C5).…”

“…18 In turn, neutral phosphorus-containing organic ligands are a promising class of substances for solvent extraction, including phenanthroline diphosphonates, [19][20][21] phenanthroline phosphine oxides [22][23][24][25] pyridine phosphine oxide, 26 and pyridine diphosphonates. 27,28 To date, the complexation properties of these compounds have primarily been investigated in relation to f-elements. Research exploring their complexation behavior with other types of elements, such as d-elements and maingroup elements, is limited.…”