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Ghosh A, Pandey A, Sengupta A, Kathirvelu V, Harmalkar SS, Dhuri SN, Singh KS, Ghanty TK. Experimental and Theoretical Investigation on the Extractive Mass Transfer of Eu 3+ Ions Using Novel Amide Ligands in 1-Hexyl-3-methylimidazolium Bis(trifluoromethylsulfonyl)imide. Inorg Chem 2023; 62:14678-14693. [PMID: 37624686 DOI: 10.1021/acs.inorgchem.3c01963] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2023]
Abstract
Novel amide ligands in the ionic liquid (1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide) were utilized for the liquid-liquid biphasic mass transfer of Eu3+ ions from aqueous acidic waste solution. The cation exchange mechanism was found to be operative with the formation of [Eu(NO3)2L3]+ species (L = 4-chloro-N-(1-methyl-1H-pyrazol-3-yl)picolinamide). However, the presence of an inner-sphere water molecule was revealed by density functional theory (DFT) calculations. The viscosity-induced slower kinetics was evidenced during mass transfer, which was improved by increasing temperature. The process was exothermic in nature. The improvement in the kinetics of extractive mass transfer at higher temperatures is evinced by a reduction in the distribution ratio value. The spontaneity of the reaction was evidenced through the negative Gibbs free energy value, whereas the process enhances the entropy of the system, probably by releasing water molecules at least partially during complexation. The structures of bare ligands and complexes have been optimized by using DFT calculations. A high value of complexation energy, solvation energy, and associated enthalpy and free energy change reveal the efficacy in binding Eu with O and N donor atoms. In addition, natural population analysis, atoms-in-molecules analysis, and energy decomposition analysis have been employed to explore the nature of bonding existing in Eu-O and Eu-N bonds.
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Affiliation(s)
- Ayan Ghosh
- Laser and Plasma Technology Division, Beam Technology Development Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Amit Pandey
- Department of Applied Sciences, National Institute of Technology Goa, Ponda, Goa 403401, India
| | - Arijit Sengupta
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- HomiBhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Velavan Kathirvelu
- Department of Applied Sciences, National Institute of Technology Goa, Ponda, Goa 403401, India
| | | | - Sunder N Dhuri
- School of Chemical Sciences, Goa University, Taleigao, Goa 403206, India
| | - Keisham S Singh
- Bioorganic Chemistry Laboratory, CSIR-National Institute of Oceanography, Dona Paula, Goa 403004, India
| | - Tapan K Ghanty
- HomiBhabha National Institute, Anushaktinagar, Mumbai 400094, India
- Bio-Science Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
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Madan Bhatt A, Deshmukh S, Boda A, Singh Chauhan R, Musharaf Ali S, Sengupta A. Synthesis and application of chloroacetamides in pyridinium based ionic liquid for high temperature extraction of uranyl ion: A novel and 'green' approach for extractive mass transfer at elevated temperature. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Das D, Hashmi S, Sengupta A, Kannan S, Kaushik C. Understanding the extraction behaviour of UO22+ and Th4+ using novel picolinamide/N-oxo picolinamide in ionic liquid: A comparative evaluation with molecular diluent. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115773] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Pandey A, Hashmi S, Kathirvelu V, Singh KS, Sengupta A. Effect of alkyl chain length on the extraction properties of U and Th using novel CnmimNTf2/isophthalamide systems. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114944] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Iqbal M, Waheed K, Rahat SB, Mehmood T, Lee MS. An overview of molecular extractants in room temperature ionic liquids and task specific ionic liquids for the partitioning of actinides/lanthanides. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07199-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Kamaz M, Sengupta A, DePaz SS, Chiao YH, Ranil Wickramasinghe S. Poly(ionic liquid) augmented membranes for π electron induced separation/fractionation of aromatics. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.01.044] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Significant enhanced uranyl ions extraction efficiency with phosphoramidate-functionalized ionic liquids via synergistic effect of coordination and hydrogen bond. Sci Rep 2017; 7:15735. [PMID: 29146928 PMCID: PMC5691085 DOI: 10.1038/s41598-017-15899-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 11/02/2017] [Indexed: 11/08/2022] Open
Abstract
The influence of the linking group between the phosphoryl and bridging moieties in phosphoryl-containing task-specific ionic liquids (TSILs) on the extraction of uranyl ions was experimentally and theoretically investigated. A novel phosphoramidate-based TSIL with an amine group as the linking moiety resulted in a higher uranyl ion extraction efficiency compared with that of other phosphoryl-based TSILs. A distribution ratio of 4999 ± 51 can be achieved for uranyl ions. The uranyl ions (76.7 ± 1.5%) were stripped from the loaded ionic liquid phase in a single stage using 0.05 M diethylenetriamine pentaacetic acid in a 1.0 M guanidine carbonate solution. The extraction stoichiometry of the uranyl ions was determined by a slope analysis of the extraction data. Furthermore, the fundamental nature of the interaction between the phosphoramidate-based TSIL and uranyl ions was theoretically studied for the first time. The theoretical calculations demonstrated that the synergistic effect of the complexation interaction and H-bond formation between the phosphoramidate-functional ionic liquid and uranyl nitrate led to the higher extraction efficiency. These results provide a basis for rational design, synthesis and potential applications of novel TSILs for uranyl extraction.
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Extraction of U(VI) by the ionic liquid hexyltributylphosphonium bis(trifluoromethylsulfonyl)imides: An experimental and theoretical study. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.07.055] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Valkonen A, Lombardo GM, Rissanen K, Punzo F, Cametti M. X-Ray crystallographic and computational study on uranyl-salophen complexes bearing nitro groups. Dalton Trans 2017; 46:5240-5249. [PMID: 28374879 DOI: 10.1039/c6dt04773d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In the solid state, salophen-UO2 complexes bearing one, two, or three NO2 groups lack the pronounced ligand curvature that represents a structural hallmark for this class of compounds. A detailed structural study based on single-crystal X-ray crystallography and computational methods, comprising molecular dynamics, gas-phase Hartree Fock, and DFT calculations, was carried out to investigate the coordination properties of the uranyl cation.
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Affiliation(s)
- Arto Valkonen
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35, 40014 Jyväskylä, Finland
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Mori T, Ikeda Y, Takao K. Extraction Behavior of U(VI) Using Novel Betainium-Type Ionic Liquids: More Hydrophobic Cations Enhance Extractability, Selectivity, and Recyclability. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2016. [DOI: 10.1246/bcsj.20160210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Understanding the extraction mechanism, radiolytic stability and stripping behavior of thorium by ionic liquid based solvent systems: evidence of ‘ion-exchange’ and ‘solvation’ mechanism. J Radioanal Nucl Chem 2016. [DOI: 10.1007/s10967-016-4994-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Understanding the extraction/complexation of uranium using structurally modified sulphoxides in room temperature ionic liquid: speciation, kinetics, radiolytic stability, stripping and luminescence investigation. J Radioanal Nucl Chem 2016. [DOI: 10.1007/s10967-016-4970-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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