Novel diamide ligands with a central carbonyl group and their comparative evaluation with the diglycolamide ligand: synthesis, extraction, DFT and chromatographic studies
-
Veeraragavan Vijayakumar
,
Nagarajan Sivaraman
Abstract
The extraction behaviour of U(VI), Th(IV) and Nd(III) was investigated as a function of nitric acid concentration for diamide based extractants, namely, N,N,N′,N′-tetraoctyl-3-carbonylpentanediamide (TOCPDA) and 4-carbonyl-heptanedioic acid bis-dioctylamide (CHADA). In addition, the distribution ratio was also measured for Pu(IV) and Sr(II) with 1.1 M CHADA in n-dodecane. These extractants were synthesized by adopting simple acid, amine coupling reaction with DCC (dicyclohexylcarbodiimide) and DMAP (N,N′-dimethylaminopyridine) as the coupling agent. The newly synthesized extractants were characterized by FT-IR, NMR, Mass, CHNS and HPLC. The extraction results indicated that CHADA shown has better extraction behavior for U(VI) compared to TOCPDA. In addition, CHADA coated HPLC column was examined for the retention behaviour of U(VI), Th(IV), and Nd(III). Computation studies based on density functional theory (DFT) were carried out to understand the complexing behaviour of U(VI), Pu(IV) and Sr(II) with CHADMA and TMCPDA.
Funding source: VV and CRK thank UGC-DAE consortium for scientific research
Award Identifier / Grant number: CSR-KN/CRS-67/2014-15
Funding statement: VV and CRK thank UGC-DAE consortium for scientific research (Funder Id: http://dx.doi.org/10.13039/501100010426, CSR-KN/CRS-67/2014-15), India, for providing research fund and are grateful to the management of Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology for their infrastructure support to our laboratory.
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Supplementary Material
The online version of this article offers supplementary material (https://doi.org/10.1515/ract-2019-3102).
©2019 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
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- Synthesis of porous resorcinol-formaldehyde resins and study of their sorption characteristics toward Cs in highly mineralized alkaline media
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Artikel in diesem Heft
- Frontmatter
- Dependence of UO2 surface morphology on processing history within a single synthetic route
- Novel diamide ligands with a central carbonyl group and their comparative evaluation with the diglycolamide ligand: synthesis, extraction, DFT and chromatographic studies
- Synthesis of porous resorcinol-formaldehyde resins and study of their sorption characteristics toward Cs in highly mineralized alkaline media
- Leaching of 137Cs from Chernobyl fuel debris: corium and “lava”
- Retention behavior of anionic radionuclides using metal hydroxide sludge
- Synthesis, thermogravimetric analysis and enthalpy determination of lanthanide β-diketonates
- 99mTc(I) carbonyl-radiolabeled lipid based drug carriers for temozolomide delivery and bioevaluation by in vitro and in vivo
- FLUKA simulation yields in a comparison with theoretical and experimental yields relevant to 89Zr produced in the 89Y(p,n) reaction
- Rapid Communication
- 225Ac/213Bi generator based on inorganic sorbents
