1
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Huang Q, Liang YT, Li AY. A Theoretical Study on the Influence of Five- and Six-Membered N-Heterocyclic Ring Side Chains of the N-Donor Extractants on Am(III)/Eu(III) Extraction and Separation. J Phys Chem A 2024; 128:6834-6846. [PMID: 39140223 DOI: 10.1021/acs.jpca.4c02777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
According to the green development requirements of carbon neutrality and carbon peaking, the effective separation of lanthanides and actinides is one of the key factors for nuclear energy to become a sustainable energy source. In recent years, o-phenanthroline-based ligands have been proven to be effective in the separation of lanthanides and actinides. In this work, based on 5,9b-dihydro-4aH-cyclopenta[1,2-b:5,4-b']dipyridines, we designed six N-heterocyclic ring ligands and theoretically studied their extraction capacity and separation selectivity for the Am(III) and Eu(III) ions. Various theoretical methods were used to analyze the properties of the ligands and study the bonding nature of the ligands with the metal ions. Thermodynamic parameters were calculated to measure the extraction ability of the ligands to the metal ions and to explore the separation capacity of the ligand for the Am(III) and Eu(III) ions. The calculated results show that the five- and six-membered N-heterocyclic ring side chains of the ligands and the distribution of the N atoms on the side chain rings have obvious effects on the bonding of the ligands to metal ions and on the extraction and separation properties of the ligands for the metal ions. It was found that the extractants with six-membered ring side chains possess an extraction ability slightly better than that of the ligands with five-membered ring side chains and that the ligands with a pair of adjacent N atoms on the side chains have a stronger separation selectivity for the Am(III)/Eu(III) ions. The theoretical research in this work will help to understand the details of binding and extraction properties of similar ligands and provide insights for the future design of five- and six-membered heterocyclic ligands.
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Affiliation(s)
- Qijie Huang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715 P. R. China
| | - Yu Ting Liang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715 P. R. China
| | - An Yong Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715 P. R. China
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2
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Liang YT, Bai SQ, Zhang YY, Li AY. Theoretical Study on the Coordination and Separation Capacity of Macrocyclic N-Donor Extractants for Am(III)/Eu(III). J Phys Chem A 2023; 127:6865-6880. [PMID: 37583058 DOI: 10.1021/acs.jpca.3c01629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
Designing ligands that can effectively separate actinide An(III)/lanthanide Ln(III) in the solvent extraction process remains one of the key issues in the treatment of accumulated spent nuclear fuel. Nitrogen donor ligands are considered as promising extractants for the separation of An(III) and Ln(III) due to their environmental friendliness. Four new macrocyclic N-donor hexadentate extractants were designed and their coordination with Am(III) and Eu(III), as well as their extraction selectivity and separation performance for Am(III) and Eu(III), were investigated by scalar relativistic density functional theory. A variety of theoretical methods have been used to evaluate the properties of the four ligands and the coordination structures, bonding properties, and thermodynamic properties of the complexes formed by the four ligands with Am(III) and Eu(III). The results of various wavefunction analysis methods including NBO analysis, quantum theory of atoms in molecules (QTAIM) analysis, and so on show that Am(III) has a stronger coordination ability with the ligands than Eu(III) due to the Am 5f orbitals more involved in bonding with the ligands than the Eu 4f orbitals, and the bonding environment of the N-donor in the ligand has a significant effect on its coordination ability of the metal ions. Thermodynamic analysis of the solvent extraction process shows that all of the four N-containing macrocyclic ligands have good extraction selectivity and separation performance for Am(III) and Eu(III). This study provides theoretical support for designing potential nitrogen-containing macrocyclic extractants with excellent separation performance.
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Affiliation(s)
- Yu Ting Liang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Shan Qin Bai
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - Yi Ying Zhang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
| | - An Yong Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China
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3
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Zou Y, Lan JH, Yuan LY, Wang CZ, Wu QY, Chai ZF, Ren P, Shi WQ. Theoretical Insights into the Selectivity of Hydrophilic Sulfonated and Phosphorylated Ligands to Am(III) and Eu(III) Ions. Inorg Chem 2023; 62:4581-4589. [PMID: 36935646 DOI: 10.1021/acs.inorgchem.2c04476] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
The separation of lanthanides and actinides has attracted great attention in spent nuclear fuel reprocessing up to date. In addition, liquid-liquid extraction is a feasible and useful way to separate An(III) from Ln(III) based on their relative solubilities in two different immiscible liquids. The hydrophilic bipyridine- and phenanthroline-based nitrogen-chelating ligands show excellent performance in separation of Am(III) and Eu(III) as reported previously. To profoundly explore the separation mechanism, herein, we first of all designed four hydrophilic sulfonated and phosphorylated ligands L1, L2, L3, and L4 based on the bipyridine and phenanthroline backbones. In addition, we studied the structures of these ligands and their neutral complexes [ML(NO3)3] (M = Am, Eu) as well as the thermodynamic properties of complexing reactions through the scalar relativistic density functional theory. According to the changes of the Gibbs free energy for the back-extraction reactions, the phenanthroline-based ligands L2 and L4 have stronger complexing capacity for both Am(III) and Eu(III) ions while the phosphorylated ligand L3 with the bipyridine framework has the highest Am(III)/Eu(III) selectivity. In addition, the charge decomposition analysis revealed a higher degree of charge transfer from the ligand to Am(III), suggesting stronger donor-acceptor interactions in the Am(III) complexes. This study can provide theoretical insights into the separation of actinide(III)/lanthanide(III) using hydrophilic sulfonated and phosphorylated N-donor ligands.
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Affiliation(s)
- Yao Zou
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, Jiangxi 330013, China.,Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Jian-Hui Lan
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Li-Yong Yuan
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Cong-Zhi Wang
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Qun-Yan Wu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Fang Chai
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Peng Ren
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, Jiangxi 330013, China
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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4
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Wang YL, Li FF, Xiao Z, Wang CZ, Liu Y, Shi WQ, He H. Experimental and theoretical studies on the extraction behavior of Cf(iii) by NTAamide(C8) ligand and the separation of Cf(iii)/Cm(iii). RSC Adv 2023; 13:3781-3791. [PMID: 36756586 PMCID: PMC9890634 DOI: 10.1039/d2ra07660h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/14/2023] [Indexed: 01/27/2023] Open
Abstract
In this work we studied the extraction behaviors of Cf(iii) by NTAamide (N,N,N',N',N'',N''-hexaocactyl-nitrilotriacetamide, C8) in nitric acid medium. Influencing factors such as contact time, concentration of NTAamide(C8), HNO3 and NO3 - as well as temperature were considered. The slope analysis showed that Cf(iii) should be coordinated in the form of neutral molecules, and the extraction complex should be Cf(NO3)3·2L (L = NTAamide(C8)), which can achieve better extraction effect under the low acidity condition. When the concentration of HNO3 was 0.1 mol L-1, the separation factor (SFCf/Cm) was 3.34. The extractant has application prospect to differentiate the trivalent Cf(iii) and Cm(iii) when the concentration of nitric acid is low. On the other hand, density functional theory (DFT) calculations were conducted to explore the coordination mechanism of NTAamide(C8) ligands with Cf/Cm cations. The NTAamide(C8) complexes of Cf(iii)/Cm(iii) have similar geometric structures, and An(iii) is more likely to form a complex with 1 : 2 stoichiometry (metal ion/ligands). In addition, bonding property and thermodynamics analyses showed that NTAamide(C8) ligands had stronger coordination ability with Cf(iii) over Cm(iii). Our work provides meaningful information with regard to the in-group separation of An(iii) in practical systems.
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Affiliation(s)
- Yi-lin Wang
- Department of Radiochemistry, China Institute of Atomic EnergyBeijing 102413P. R. China
| | - Feng-feng Li
- Department of Radiochemistry, China Institute of Atomic EnergyBeijing 102413P. R. China
| | - Zhe Xiao
- Department of Radiochemistry, China Institute of Atomic Energy Beijing 102413 P. R. China
| | - Cong-zhi Wang
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of SciencesBeijing 100049P. R. China
| | - Yang Liu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of SciencesBeijing 100049P. R. China
| | - Wei-qun Shi
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of SciencesBeijing 100049P. R. China
| | - Hui He
- Department of Radiochemistry, China Institute of Atomic Energy Beijing 102413 P. R. China
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5
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Ebenezer C, Solomon RV. Complexation of N‐Heterocyclic Substituted 1,10‐Phenanthroline‐2,9‐diamide with Am
3+
/Eu
3+
Ions for Nuclear Waste Water Treatment. ChemistrySelect 2022. [DOI: 10.1002/slct.202203535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Cheriyan Ebenezer
- Department of Chemistry Madras Christian College (Autonomous) [Affiliated to the University of Madras Chennai 600 059 Tamil Nadu India
| | - Rajadurai Vijay Solomon
- Department of Chemistry Madras Christian College (Autonomous) [Affiliated to the University of Madras Chennai 600 059 Tamil Nadu India
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Chen Q, Li B, Wang J, Zhu H, Chen X, Hu Y, Zhou J, Wang W, Zheng W, Yan T. Selective coordination behaviors of Uranium(VI) with novel asymmetrical tetra-alkylcarbamides. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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7
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Jennifer SJ, Razak IA, Ebenezer C, Solomon RV. Role of Cl• • •Cl halogen bonds in tuning the crystals of Uranyl-Dicholorothiophene carboxylate based hybrid cluster materials through N-donor counter ions. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Tao X, Yang R, Xiao Y, Liao L, Xiao X, Nie C. Complexation and enantioselectivity of novel bridge-like uranyl- 2-((1Z,9Z)-9-(2-Hydroxyphenyl)-3,5,6,8-tetrahydrobenzo[ h][1,4,7,10] dioxadiazacyclododecin-2-yl)-5-methoxyphenol with chiral organophosphorus pesticide enantiomers of R/S-malathions. ENVIRONMENTAL TECHNOLOGY 2022; 43:3378-3389. [PMID: 33886435 DOI: 10.1080/09593330.2021.1921055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/16/2021] [Indexed: 06/12/2023]
Abstract
Designing new uranyl complexes with enantioselectivity is of great significance for the identification and separation of enantiomers of chiral pesticides. In this paper, a new asymmetric rigid uranyl-2-((1Z,9Z)-9-(2-Hydroxyphenyl)-3,5,6,8-tetrahydrobenzo[h][1,4,7,10] dioxadiaza-cyclododecin-2-yl)-5-methoxyphenol(Uranyl-HTDM) was designed, we used Uranyl-HTDM as a receptor to selectively coordinate with the guests of the chiral organophosphorus pesticide R/S-malathions(R/S-MLTs) to explore the receptor's enatioselectivity recognition of the chiral guests of R/S-MLTs. Density functional theory (DFT) method was used to comprehensively study the complexation mode of the receptor with enantiomers. The results showed that the U of Uranyl-HTDM could coordinate with both the thiophosphoryl sulfur and carbonyl oxygens of R/S-MLTs in different environments, respectively. The thermodynamics calculations further indicated that the receptor could selectively recognize the thiophosphoryl sulfur and carbonyl oxygen atoms of R/S-malathions, and the complexation abilities of Uranyl-HTDM to the R/S-malathions under different solvents were not the same. The smaller the polarity of solvents, the stronger the complexation ability of Uranyl-HTDM with R-malathion, toluene was an ideal solvent with large △G change and enatioselectivity coefficient of 99.55%. The study provides useful references for the design of new uranyl-salophens and for the experimental study on the molecular recognition of chiral organophosphorus pesticides.
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Affiliation(s)
- Xuebing Tao
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, People's Republic of China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes, Hengyang, People's Republic of China
| | - Rong Yang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, People's Republic of China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes, Hengyang, People's Republic of China
| | - Yang Xiao
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, People's Republic of China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes, Hengyang, People's Republic of China
| | - Lifu Liao
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, People's Republic of China
| | - Xilin Xiao
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, People's Republic of China
| | - Changming Nie
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, People's Republic of China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes, Hengyang, People's Republic of China
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9
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Extraction of Uranium in Nitric Media with Novel Asymmetric Tetra-Alkylcarbamide. Molecules 2022; 27:molecules27175527. [PMID: 36080293 PMCID: PMC9457804 DOI: 10.3390/molecules27175527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/21/2022] [Accepted: 08/25/2022] [Indexed: 11/17/2022] Open
Abstract
The use of tetra-alkylcarbamides as novel ligands: N,N-butyl-N’,N’-hexylurea (L1: ABHU), and N,N-butyl-N’,N’-pentylurea (L2: ABPU), for the solvent extraction and complexation behaviors of uranium(VI) was synthesized and investigated in this study. The effects of HNO3 and NO3− concentrations in the aqueous phase on the distribution ratio of U(VI) were examined. Under 5 mol/L HNO3 concentration, DU reached 5.02 and 4.94 respectively without third-phase formation. During the extraction, slope measurements and IR spectral analysis revealed that the U(VI) complexes are a form of UO2(NO3)2·2L for both ligands. In addition, thermodynamic studies showed that the uranium extraction reaction was a spontaneous exothermic reaction. The deep structural analysis of the complexes was realized with DFT calculation. The bond length, bond properties, and topology of the complexes were discussed in detail to analyze the extraction behavior. This study enriches the coordination chemistry of U(VI) by tetra-alkylcarbamides, which may offer new clues for the design and synthesis of novel ligands for the separation, enrichment, and recovery of uranium in the nuclear fuel cycle.
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10
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Pahan S, Sengupta A, Ananthanarayanan A, Vincent T, Sugilal G, Kaushik CP. Application of Impregnated Resins for the Recovery of Actinides from Alpha Contaminated Solid Waste. ChemistrySelect 2022. [DOI: 10.1002/slct.202200956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Sumit Pahan
- Process Development Division Bhabha Atomic Research Centre Mumbai 400085 India
| | - Arijit Sengupta
- Radiochemistry Division Bhabha Atomic Research Centre Mumbai 400085 India
- Homi Bhabha National Institute Mumbai 400094 India
| | | | - Tessy Vincent
- Process Development Division Bhabha Atomic Research Centre Mumbai 400085 India
| | - G. Sugilal
- Process Development Division Bhabha Atomic Research Centre Mumbai 400085 India
| | - Chetan P. Kaushik
- Process Development Division Bhabha Atomic Research Centre Mumbai 400085 India
- Homi Bhabha National Institute Mumbai 400094 India
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11
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Theoretical Study of the Structural, Optoelectronic, and Reactivity Properties of N-[5′-Methyl-3′-Isoxasolyl]-N-[(E)-1-(-2-)]Methylidene] Amine and Some of Its Fe2+, Co2+, Ni2+, Cu2+, and Zn2+ Complexes for OLED and OFET Applications. J CHEM-NY 2022. [DOI: 10.1155/2022/3528170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Herein, we report the structural, electronic, and charge transfer properties of N-[5′-methyl-3′-isoxasolyl]-N-[(E)-1-(-2-thiophene)] methylidene] amine (L) and its Fe2+, Co2+, Ni2+, Cu2+, and Zn2+ complexes (dubbed A, B, C, D, and E, respectively) using the density functional theory (DFT). All molecules investigated were optimized at the BP86/def2-TZVP/RI level of theory. Single point energy calculations were carried out at the M06-D3ZERO/def2-TZVP/RIJCOSX level of theory. Reorganization energies of the hole and electron (λh and λe) and the charge transfer mobilities of the electron and hole (μe and μh) have been computed and reported. The λe and λh values vary in the order D > E > A > B > C > L and E > A > D > L > C > B, respectively, while μe and μh vary in the order B > C > L > A > E > D and C > B > A > L > E > D, respectively. μh of B (39.5401 cm2·V−1S−1) and C (366.4740 cm2·V−1s−1) is remarkably large, suggesting their application in organic light-emitting diode (OLED) and organic field-effect transistor (OFET) technologies. Electron excitation analysis based on time-dependent (TD)-DFT calculations revealed that charge transfer excitations may significantly affect charge transfer mobilities. Based on charge transfer mobility results, B and C are outstanding and are promising molecules for the manufacture of electron and hole-transport precursor materials for the construction of OLED and OFET devices as compared to L. The results also show that L and all its complexes interestingly have higher third-order NLO activity than those of para-nitroaniline, a prototypical NLO molecule.
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12
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Ebenezer C, Solomon RV. Uptake of Am(III) Ions and Eu(III) Ions Using Cyclic Substituted N, O‐hybrid 1,10‐Phenanthroline Derived Phosphine Oxide Ligands ‐ A DFT Exploration. ChemistrySelect 2022. [DOI: 10.1002/slct.202200446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Cheriyan Ebenezer
- Department of Chemistry Madras Christian College (Autonomous) University of Madras, East Tambaram Chennai 600 059 Tamil Nadu India
| | - Rajadurai Vijay Solomon
- Department of Chemistry Madras Christian College (Autonomous) University of Madras, East Tambaram Chennai 600 059 Tamil Nadu India
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13
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Ye ZR, Wu QY, Wang CZ, Lan JH, Chai ZF, Wang HQ, Shi WQ. Theoretical Insights into the Selective Separation of Am(III)/Eu(III) Using Hydrophilic Triazolyl-Based Ligands. Inorg Chem 2022; 61:6110-6119. [PMID: 35416038 DOI: 10.1021/acs.inorgchem.2c00232] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Designing ligands with efficient actinide (An(III))/lanthanide (Ln(III)) separation performance is still one of the key issues for the disposal of accumulated radioactive waste and the recovery of minor actinides. Recently, the hydrophilic ligands as promising extractants in the innovative Selective ActiNide Extraction (i-SANEX) process show excellent selectivity for Am(III) over Eu(III), such as hydroxylated-based ligands. In this work, we investigated the selective back-extraction toward Am(III) over Eu(III) with three hydrophilic hydroxylated triazolyl-based ligands (the skeleton of pyridine La, bipyridine Lb, and phenanthroline Lc) using scalar-relativistic density functional theory. The properties of three hydrophilic hydroxylated ligands and the coordination structures, bonding nature, and thermodynamic properties of the Am(III) and Eu(III) complexes with three ligands have been evaluated using multiple theoretical methods. The results of molecular orbitals (MOs), quantum theory of atoms in molecules (QTAIMs), and natural bond orbital (NBO) reveal that Am-N bonds possess more covalent character compared to Eu-N bonds. The thermodynamic results indicate that the complexing ability of Lb and Lc with metal ions is almost the same, which is stronger than that of La. However, La has the best Am(III)/Eu(III) selectivity among three ligands, which is attributed to the largest difference in covalency between Am-Ntrzl and Eu-Ntrzl bonds in MLa(NO3)3. This work provides an in-depth understanding of the preferential selectivity of the hydrophilic hydroxylated ligands with An(III) over Ln(III) and also provides theoretical support for designing potential hydrophilic ligands with excellent separation performance of Am(III)/Eu(III).
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Affiliation(s)
- Zi-Rong Ye
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China.,Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Qun-Yan Wu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Cong-Zhi Wang
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Jian-Hui Lan
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Fang Chai
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Hong-Qing Wang
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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14
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Liu L, Lu Y, Liao L, Xiao X, Nie C. Theoretical Unravelling the Complexation and Separation of Uranyl‐ligand Complexes towards Chiral R/S‐Profenofos. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Linfeng Liu
- School of Chemistry and Chemical Engineering University of South China Hengyang China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes Hengyang China
| | - Yao Lu
- School of Chemistry and Chemical Engineering University of South China Hengyang China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes Hengyang China
| | - Lifu Liao
- School of Chemistry and Chemical Engineering University of South China Hengyang China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes Hengyang China
| | - Xilin Xiao
- School of Chemistry and Chemical Engineering University of South China Hengyang China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes Hengyang China
| | - Changming Nie
- School of Chemistry and Chemical Engineering University of South China Hengyang China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes Hengyang China
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15
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Abigail Jennifer G, Ebenezer C, Vijay Solomon R. Selective Complexation of trivalent Americium over Europium with substituted Triazolebipyridine-based Ligand in High Level-Liquid Waste- A DFT investigation. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Oxorhenium(V) complexes with a benzyldithiocarbazate ligand: synthesis, crystal structure, spectroscopic and DFT analyses. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Lemport PS, Evsiunina MV, Matveev PI, Petrov VS, Pozdeev AS, Khult EK, Nelyubina YV, Isakovskaya KL, Roznyatovsky VA, Gloriozov IP, Tarasevich BN, Aldoshin AS, Petrov VG, Kalmykov SN, Ustynyuk YA, Nenajdenko VG. 2-Methylpyrrolidine derived 1,10-phenanthroline-2,9-diamides: promising extractants for Am( iii)/Ln( iii) separation. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00803c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work we report on new examples of phenanthrolindiamides containing asymmetric centers in amide substituents.
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Affiliation(s)
- P. S. Lemport
- Department of Organic Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - M. V. Evsiunina
- Department of Organic Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - P. I. Matveev
- Department of Organic Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - V. S. Petrov
- Department of Organic Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - A. S. Pozdeev
- Department of Organic Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - E. K. Khult
- Department of Materials Science, Lomonosov Moscow State University, Leninskie gory 1 bld. 73, Moscow 119991, Russia
| | - Yu. V. Nelyubina
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Russia
| | - K. L. Isakovskaya
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Russia
- D.I. Mendeleev University of Chemical Technology of Russia, Russia
| | - V. A. Roznyatovsky
- Department of Organic Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - I. P. Gloriozov
- Department of Organic Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - B. N. Tarasevich
- Department of Organic Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - A. S. Aldoshin
- Department of Organic Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - V. G. Petrov
- Department of Organic Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - S. N. Kalmykov
- Department of Organic Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - Yu. A. Ustynyuk
- Department of Organic Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
| | - V. G. Nenajdenko
- Department of Organic Chemistry, Lomonosov Moscow State University, 119991, Moscow, Russia
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18
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Ebenezer C, Vijay Solomon R. Preorganization of N, O-hybrid phosphine oxide chelators for effective extraction of trivalent Am/Eu ions - A computational study. NEW J CHEM 2022. [DOI: 10.1039/d1nj06029e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N, O-hybrid phosphine oxide ligands with N-heterocyclic cores are the advanced extractants for extracting actinides over lanthanides. Yet, the challenging task in designing an efficient hybrid ligand is tracing the...
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19
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Wang S, Wang C, Yang XF, Yu JP, Tao WQ, Yang SL, Ren P, Yuan LY, Chai ZF, Shi WQ. Selective Separation of Am(III)/Eu(III) by the QL-DAPhen Ligand under High Acidity: Extraction, Spectroscopy, and Theoretical Calculations. Inorg Chem 2021; 60:19110-19119. [PMID: 34860506 DOI: 10.1021/acs.inorgchem.1c02916] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Although 1,10-phenanthroline-based ligands have recently shown vast opportunities for the separation of trivalent actinides (Ans(III)) from lanthanides (Lns(III)), the optimization and design of the extractant structure based on the phenanthroline framework remain hotspots for further improving the separation. Following the strategy of hard and soft donor atom combination, for the first time, the quinoline group was attached to the 1,10-phenanthroline skeleton, giving a lipophilic ligand, 2,9-diacyl-bis((3,4-dihydroquinoline-1((2H)-yl)-1),10-phenanthroline (QL-DAPhen)), for Am(III)/Eu(III) separation. In the presence of sodium nitrate, the ligand can effectively extract Am(III) over Eu(III) in HNO3 solution, with the separation factor (SFAm/Eu) ranging from 29 to 44. The coordination chemistry of Eu(III) with QL-DAPhen was investigated by slope analysis, NMR titration, UV-vis titration, Fourier transform infrared spectroscopy, electrospray ionization-mass spectrometry, and theoretical calculations. The experimental results unanimously confirm that the ligand forms both 1:1 and 1:2 complexes with Eu(III), and the stability constants (log β) of each of the two complexes were obtained. Density functional theory calculations show that the Am-N bonds have more covalent characteristics than the Eu-N bonds in the complexes, which reveals the reason why the ligand preferentially bonds with Am(III). Meanwhile, the thermodynamic analysis reveals that the 1:1 complex is more thermodynamically stable than the 1:2 complex. The findings of this work have laid a solid theoretical foundation for the application of phenanthroline-based ligands in the separation of An(III) from practical systems.
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Affiliation(s)
- Shuai Wang
- Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, P.R. China.,Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Cui Wang
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Xiao-Fan Yang
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China.,Department of Radiochemistry, China Institute of Atomic Energy, Beijing 102413, P.R. China
| | - Ji-Pan Yu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Wu-Qing Tao
- Department of Radiochemistry, China Institute of Atomic Energy, Beijing 102413, P.R. China
| | - Su-Liang Yang
- Department of Radiochemistry, China Institute of Atomic Energy, Beijing 102413, P.R. China
| | - Peng Ren
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Li-Yong Yuan
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Zhi-Fang Chai
- Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, P.R. China.,Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China.,Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, P.R. China
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China
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20
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Gray NAG, Price JS, Emslie DJH. Uranium(IV) Thio- and Selenoether Complexes: Syntheses, Structures, and Computational Investigation of U-ER 2 Interactions. Chemistry 2021; 28:e202103580. [PMID: 34875126 DOI: 10.1002/chem.202103580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Indexed: 11/07/2022]
Abstract
Rigid thioether- and selenoether-containing pincer proligands H[AS2 Ph 2 ] (1) and H[ASe2 Ph 2 ] (2) were synthesized, and deprotonation provided the potassium salts [K(AS2 Ph 2 )(dme)] (3) and [K(ASe2 Ph 2 )(dme)2 ] (4). Reaction of two equivalents of 3 or 4 with [UI4 (dioxane)2 ] afforded the uranium thioether complex [(AS2 Ph 2 )2 UI2 ] (5) and the first example of a uranium-selenoether complex, [(ASe2 Ph 2 )2 UI2 ] (6). X-ray structures revealed distorted square antiprismatic geometries in which the AE2 Ph 2 ligands are κ3 -coordinated. The nature of the U-ER2 bonding in 5 and 6, as well as methyl-free analogues of 5 and 6 and a hypothetical ether analogue, was investigated computationally (including NBO, AIM, and ELF calculations) illustrating increasing covalency from O to S to Se.
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Affiliation(s)
- Novan A G Gray
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada
| | - Jeffrey S Price
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada
| | - David J H Emslie
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1, Canada
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21
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Does the length of the alkyl chain affect the complexation and selectivity of phenanthroline-derived phosphonate ligands? – Answers from DFT calculations. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115533] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Impact of Coordination Modes of N‐Donor Ligands on Am(III)/Eu(III) Separation in Nuclear Waste Water Treatment – A DFT Study. ChemistrySelect 2021. [DOI: 10.1002/slct.202102543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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23
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George Thomas M, Ebenezer C, Solomon RV. Tuning the structure of disulfonated phenanthroline based ligands for effective separation of Am(III)/Eu(III) ions : A DFT investigation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117151] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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24
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Lipin R, Ebenezer C, Solomon RV. Theoretical evaluation of mixed N-, O- donor based TMPhenDA ligand in selective complexation with actinide (III) ions over lanthanide (III) ions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115819] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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25
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Yang R, Xiao Y, Tao X, Ma M, Wu Z, Liao L, Xiao X, Nie C. Insights into complexation and enantioselectivity of uranyl‐2‐(2‐hydroxy‐3‐methoxyphenyl)‐9‐(2‐hydroxyphenyl)thiopyrano[3,2‐
h
]thiochromene‐4,7‐dione with
R
/
S
‐organophosphorus pesticides. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Rong Yang
- School of Chemistry and Chemical Engineering University of South China Hengyang China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes University of South China Hengyang China
| | - Yang Xiao
- School of Chemistry and Chemical Engineering University of South China Hengyang China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes University of South China Hengyang China
| | - Xue‐bing Tao
- School of Chemistry and Chemical Engineering University of South China Hengyang China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes University of South China Hengyang China
| | - Ming‐jie Ma
- School of Chemistry and Chemical Engineering University of South China Hengyang China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes University of South China Hengyang China
| | - Zhi‐lin Wu
- School of Chemistry and Chemical Engineering University of South China Hengyang China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes University of South China Hengyang China
| | - Li‐fu Liao
- School of Chemistry and Chemical Engineering University of South China Hengyang China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes University of South China Hengyang China
| | - Xi‐lin Xiao
- School of Chemistry and Chemical Engineering University of South China Hengyang China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes University of South China Hengyang China
| | - Chang‐ming Nie
- School of Chemistry and Chemical Engineering University of South China Hengyang China
- Key Laboratory of Hunan Province for Design and Application of Natural Actinide Complexes University of South China Hengyang China
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26
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Theoretical insights into chiral PMAADs coordinated with Am(III)/Eu(III) and separation selectivity enhanced by chiral-at Am(III)/Eu(III) complexes. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07653-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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27
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Sun Z, Su L, Yao D, Yang X, Song X. Selective Separation of HNO 3 and HCl by Extraction: The Investigation on the Noncovalent Interaction between Extractants and Acids by Density Functional Theory. J Phys Chem B 2021; 125:1214-1226. [PMID: 33496172 DOI: 10.1021/acs.jpcb.0c09562] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
There is a huge demand for the highly selective separation of HNO3 and HCl in many industries, and solvent extraction is considered a feasible method. In this article, DFT calculations were performed to investigate the interactions between acids and extractants including alcohols, ketones, phosphorus, and amines. One of the significant findings to emerge from this study is that amines bind to acids through ion association. Nevertheless, the interaction between acids and alcohols, ketones, and phosphorus with a (RO)3P═O structure is mainly dominated by hydrogen bonds. The change of Gibbs free energy in the extraction process shows that the phosphorus ((RO)3P═O) is superior to other types of extractants in the selective separation of HNO3 and HCl. Furthermore, after the alkoxyl group (RO-) in phosphorus ((RO)3P═O) is replaced by RN- or R- with less electronegativity, the interaction between HCl and the substituted extractants transitions from a hydrogen bond to ion association, but there are still strong hydrogen bonds between them and HNO3. That will lead to a decrease in the selectivity of phosphorus due to the change in interaction types. This new understanding should help the design and screening of efficient extractants for the separation of mineral acids.
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Affiliation(s)
- Ze Sun
- Engineering Research Center of Resources Process Engineering, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China.,School of Chemistry and Chemical Engineering, Qinghai Nationalities University, Xi'ning 810007, China
| | - Lei Su
- Engineering Research Center of Resources Process Engineering, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Doudou Yao
- Engineering Research Center of Resources Process Engineering, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaobo Yang
- School of Chemistry and Chemical Engineering, Qinghai Nationalities University, Xi'ning 810007, China
| | - Xingfu Song
- Engineering Research Center of Resources Process Engineering, Ministry of Education, East China University of Science and Technology, Shanghai 200237, China
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28
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Shen YP, Cai HX, Chen FY, Guo YR, Pan QJ. A relativistic DFT probe for small-molecule activation mediated by low-valent uranium metallocenes. NEW J CHEM 2021. [DOI: 10.1039/d0nj06296k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DFT calculations rationalize the capability of uranium metallocenes in activating small molecules, and the experimentally inaccessible CO2 adduct is addressed.
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Affiliation(s)
- Yong-Peng Shen
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- China
| | - Hong-Xue Cai
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- China
| | - Fang-Yuan Chen
- School of Electrical and Information Engineering
- Heilongjiang University of Technology
- Jixi 158100
- China
| | - Yuan-Ru Guo
- Key Laboratory of Bio-Based Material Science & Technology (Ministry of Education)
- College of Material Science and Engineering
- Northeast Forestry University
- Harbin 150040
- China
| | - Qing-Jiang Pan
- Key Laboratory of Functional Inorganic Material Chemistry (Ministry of Education)
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin
- China
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29
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Ebenezer C, Vijay Solomon R. Tailoring the selectivity of phenanthroline derivatives for the partitioning of trivalent Am/Eu ions – a relativistic DFT study. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00097g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Preferential binding of actinides over lanthanides using tailored phenanthroline derivative ligands through relativistic DFT calculations.
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Affiliation(s)
- Cheriyan Ebenezer
- Department of Chemistry
- Madras Christian College (Autonomous)
- (Affiliated to the University of Madras)
- Chennai – 600 059
- India
| | - Rajadurai Vijay Solomon
- Department of Chemistry
- Madras Christian College (Autonomous)
- (Affiliated to the University of Madras)
- Chennai – 600 059
- India
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30
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Ren P, Huang PW, Yang XF, Zou Y, Tao WQ, Yang SL, Liu YH, Wu QY, Yuan LY, Chai ZF, Shi WQ. Hydrophilic Sulfonated 2,9-Diamide-1,10-phenanthroline Endowed with a Highly Effective Ligand for Separation of Americium(III) from Europium(III): Extraction, Spectroscopy, and Density Functional Theory Calculations. Inorg Chem 2020; 60:357-365. [PMID: 33319556 DOI: 10.1021/acs.inorgchem.0c03002] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The design and development of a water-soluble heterocyclic ligand are believed to be an alternative way for improving the separation efficiency of actinides from lanthanides. Herein, we designed and synthesized a novel hydrophilic multidentate ligand: disulfonated N,N'-diphenyl-2,9-diamide-1,10-phenanthroline (DS-Ph-DAPhen) with soft and hard donor atoms, as a masking agent in aqueous solutions for Am(III) separation. The combination of N,N,N',N'-tetraoctyldiglycolamide in kerosene and DS-Ph-DAPhen in aqueous phases could separate Am(III) from Eu(III) across a range of nitric acid concentrations with very high selectivity. The coordination behaviors of Eu(III) with DS-Ph-DAPhen in aqueous solutions were studied by UV-vis titration, electrospray ionization mass spectrometry, and Fourier transform infrared spectra. The results indicated that Eu(III) ions could form both 1:1 and 1:2 complexes with the DS-Ph-DAPhen ligand in aqueous solution. Density functional theory calculation suggests that there are more covalent characters for Am-N bonds than that for Eu-N bonds in the complexes, which supports the better selectivity of the DS-Ph-DAPhen ligand toward Am(III) over Eu(III). This work demonstrates a feasible alternative approach to separating trivalent actinides from lanthanides with high selectivity.
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Affiliation(s)
- Peng Ren
- State Key Laboratory of Nuclear Resources and Environment, School of Nuclear Science and Technology, East China University of Technology, Nanchang, Jiangxi 330013, China.,Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Pin-Wen Huang
- Zhejiang University of Water Resources and Electric Power, Hangzhou, Zhejiang 310018, China
| | - Xiao-Fan Yang
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.,Department of Radiochemistry, China Institute of Atomic Energy (CIAE), Beijing 102413, China
| | - Yao Zou
- State Key Laboratory of Nuclear Resources and Environment, School of Nuclear Science and Technology, East China University of Technology, Nanchang, Jiangxi 330013, China
| | - Wu-Qing Tao
- Department of Radiochemistry, China Institute of Atomic Energy (CIAE), Beijing 102413, China
| | - Su-Liang Yang
- Department of Radiochemistry, China Institute of Atomic Energy (CIAE), Beijing 102413, China
| | - Yun-Hai Liu
- State Key Laboratory of Nuclear Resources and Environment, School of Nuclear Science and Technology, East China University of Technology, Nanchang, Jiangxi 330013, China
| | - Qun-Yan Wu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Li-Yong Yuan
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Fang Chai
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.,Engineer Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.,Engineer Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
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31
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Liu Y, Wang CZ, Wu QY, Lan JH, Chai ZF, Liu Q, Shi WQ. Theoretical Prediction of the Potential Applications of Phenanthroline Derivatives in Separation of Transplutonium Elements. Inorg Chem 2020; 59:11469-11480. [PMID: 32799470 DOI: 10.1021/acs.inorgchem.0c01271] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Recovery of transplutonium elements from adjacent actinides is extremely complicated in spent fuel reprocessing. Uncovering the electronic structures of transplutonium compounds is essential for designing robust ligands for in-group separation of transplutonium actinides. Here, we demonstrate the in-group transplutonium actinides separation ability of the recent developed phenanthroline ligand Et-Tol-DAPhen (N2,N9-diethyl-N2,N9-di-p-tolyl-1,10-phenanthroline-2,9-dicarboxamide, La) and its derivatives (5-bromo-(N2,N9-diethyl-N2,N9-di-p-tolyl-1,10-phenanthroline-2,9-dicarboxamide, Lb), and 5-(4-(λ1-oxidaneyl)phenyl)-(N2,N9-diethyl-N2,N9-di-p-tolyl-1,10-phenanthroline-2,9- dicarboxamide, Lc) through quasi-relativistic density functional theory (DFT). Both electrostatic potential and molecular orbital analyses of the ligands indicate that the electron-donating group substituted ligand Lc is a better electron donor to actinides than La and Lb. The possible extracted complexes AnL(NO3)3 and [AnL2(NO3)]2+ (L = La, Lb, Lc; An = Am, Cm, Bk, Cf) possess similar structures. Bonding nature analysis validates that the covalent interactions of the metal-ligand bonds are enhanced across actinide series from Am to Cf, which stem from the energy degeneracy of the 5f orbitals of actinides and the 2p orbitals of the ligand coordinating atoms. The Lc ligand displays slightly stronger covalent bonding compared to the other two ligands. Simultaneously, thermodynamic analysis confirms the stronger metal-ligand bonding of the Cf3+ complexes and the higher stability of the extraction species with Lc. Consequently, the covalency between the DAPhen derivatives and transplutonium actinides seems to be positively correlated with the extraction ability of these ligands. Nevertheless, these ligands exhibit diverse separation abilities to in-group actinide recovery. Therefore, the enhancement of covalency does not necessarily lead to the improvement of separation ability due to different extraction capabilities. We hope that these results will provide some inspiration for designing novel ligands for in-group transplutonium separation.
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Affiliation(s)
- Yang Liu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Cong-Zhi Wang
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Qun-Yan Wu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Jian-Hui Lan
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Fang Chai
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.,Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - Qi Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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32
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Chen YM, Wang CZ, Wu QY, Lan JH, Chai ZF, Nie CM, Shi WQ. Theoretical Insights into Modification of Nitrogen-Donor Ligands to Improve Performance on Am(III)/Eu(III) Separation. Inorg Chem 2020; 59:3221-3231. [PMID: 32048832 DOI: 10.1021/acs.inorgchem.9b03604] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Nitrogen-donor ligands have been considered to be promising agents for separating trivalent actinides (An(III)) from lanthanides (Ln(III)). Thereinto, how to decorate these ligands for better extraction performance is urgent to design "perfect" separating extractants. In this work, we systematically explored a series of heterocyclic N-donor ligands (L1 = dipyridazino[4,3-c:3',4'-h]acridine, L2 = dipyridazino[3,4-a:4',3'-j]phenazine, L3 = 2,6-di(cinnolin-3-yl)pyridine)), as well as their substituted derivatives, and compared their extraction and complexation ability toward An(III) and Ln(III) ions by using quasi-relativistic density functional theory (DFT). We found that the pyridazine N atoms probably play a notable role in electron donation to metal cations by molecular orbital (MO) and bond order analyses. Besides, the calculated results clearly verified that these N-donor ligands possess higher coordination affinity toward Am(III) over Eu(III). The rigid ligands (L1 and L2) exhibit higher selective abilities for the Am(III)/Eu(III) separation compared with that of the flexible ligand (L3). For each ligand, the 1:2 (metal/ligand) extraction reaction is predicted to be most probable in the separation process. The introduction of an alkyl group on the lateral chain or an electron-donating group on the main chain gives rise to a better extraction performance of the ligands, and the CyMe4 or MeO substituted ligands show higher extraction and separation ability. Simultaneous introduction of CyMe4 and MeO groups can enhance the extraction ability of the ligand to metal ions, but the separating ability depends on the differences of the extraction capacity of An(III) and Ln(III). This work can help to gain a more in-depth understanding the selectivity differences of similar N-donor ligands and provide more theoretical insights into the design of novel extractants for An(III)/Ln(III) separation.
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Affiliation(s)
- Yan-Mei Chen
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.,School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Cong-Zhi Wang
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Qun-Yan Wu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Jian-Hui Lan
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Fang Chai
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.,Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - Chang-Ming Nie
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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33
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Coordination behavior of uranyl with PDAM derivatives in solution: Combined study with ESI-MS and DFT. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.112287] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Pahan S, Sengupta A, Yadav AK, Jha SN, Bhattacharyya D, Musharaf Ali S, Khan PN, Debnath AK, Banerjee D, Vincent T, Manohar S, Kaushik CP. Exploring functionalized titania for task specific application of efficient separation of trivalent f-block elements. NEW J CHEM 2020. [DOI: 10.1039/d0nj01014f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Functionalized titania, obtained by grafting the dipicolinic acid functionality, was explored for task specific application of highly efficient separation of trivalent f-block elements.
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Affiliation(s)
- Sumit Pahan
- Process Development Division
- Bhabha Atomic Research Centre
- India
- Homi Bhabha National Institute
- India
| | - Arijit Sengupta
- Homi Bhabha National Institute
- India
- Radiochemistry Division
- Bhabha Atomic Research Centre
- India
| | - A. K. Yadav
- Atomic and Molecular Physics Division
- Bhabha Atomic Research Centre
- India
| | - S. N. Jha
- Atomic and Molecular Physics Division
- Bhabha Atomic Research Centre
- India
| | - D. Bhattacharyya
- Atomic and Molecular Physics Division
- Bhabha Atomic Research Centre
- India
| | | | - P. N. Khan
- Process Development Division
- Bhabha Atomic Research Centre
- India
| | - A. K. Debnath
- Technical Physics Division
- Bhabha Atomic Research Centre
- India
| | - D. Banerjee
- Process Development Division
- Bhabha Atomic Research Centre
- India
| | - T. Vincent
- Process Development Division
- Bhabha Atomic Research Centre
- India
| | - S. Manohar
- Process Development Division
- Bhabha Atomic Research Centre
- India
| | - C. P. Kaushik
- Homi Bhabha National Institute
- India
- Nuclear Recycle Group
- Bhabha Atomic Research Centre
- India
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Pati A, Kundu T, Pal S. Quantum chemical calculation based investigation of synergistic chelating between multiple hydroxyamide ligands and La3+ ion. COMPUT THEOR CHEM 2019. [DOI: 10.1016/j.comptc.2019.112643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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