Synthesis and Extraction Properties of Diphenylphosphorylureas with ω-(Alkoxy/Tetrahydrofuryl)Alkyl Substituents at the Terminal Nitrogen Atom

N -Diphenylphosphoryl- N '-[ω-(alkoxy/tetrahydrofuryl)alkyl]ureas have been synthesized based on a highly efficient one-pot catalytic process and their extraction properties have been studied with respect to f -elements in nitric acid media. The influence on the extraction characteristics of th...

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Bibliographic Details
Published in:Russian journal of inorganic chemistry 2022-09, Vol.67 (9), p.1416-1424
Main Authors: Safiulina, A. M., Borisova, N. E., Lizunov, A. V., Baulina, T. V., Goryunov, E. I., Peregudov, A. S., Brel, V. K., Tananaev, I. G.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Complex formation
Coordination Compounds
Density functional theory
Inorganic Chemistry
Molecular chains
Nitric acid
Nitrogen
Radicals
Uranium
Ureas
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Summary:N -Diphenylphosphoryl- N '-[ω-(alkoxy/tetrahydrofuryl)alkyl]ureas have been synthesized based on a highly efficient one-pot catalytic process and their extraction properties have been studied with respect to f -elements in nitric acid media. The influence on the extraction characteristics of the presence of an alkoxy or tetrahydrofuryl group located in the ω-position of the normal N '-alkyl radical of phosphorylurea has been revealed. It has been shown that N -(diphenylphosphoryl)urea containing N '-[2-(tetrahydrofur-2-yl)ethyl] radical has the best extraction properties with respect to the studied f -elements, especially this effect is pronounced for uranium(VI). This dependence has been theoretically substantiated when simulating complex formation by the density functional theory method (DFT, PBE, cc-pVDZ), since the coordination of the f ‑element ion to the oxygen atom of the furyl radical attached to the ethylene carbon chain turns out to be preferable.
ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023622090108