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Rout A, Kumar S, Ramanathan N. Unraveling the Coordination Approach of Eu(III) in Cyphos Nitrate Ionic Liquid – A Comprehensive Luminescence Spectroscopy Study. Dalton Trans 2022; 51:5534-5545. [DOI: 10.1039/d2dt00422d] [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 consideration of the mounting attention of the ionic liquid: Cyphos 101 (trihexyl(tetradecyl)phoshonium chloride: [P66614][Cl]) in the recovery of rare earth and other valuables from their waste matrices, an effort...
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2
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Migliorati V, Gibiino A, Lapi A, Busato M, D'Angelo P. On the Coordination Chemistry of the lanthanum(III) Nitrate Salt in EAN/MeOH Mixtures. Inorg Chem 2021; 60:10674-10685. [PMID: 34236168 PMCID: PMC8389800 DOI: 10.1021/acs.inorgchem.1c01375] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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A thorough structural
characterization of the La(NO3)3 salt dissolved
into several mixtures of ethyl ammonium
nitrate (EAN) and methanol (MeOH) with EAN molar fraction χEAN ranging from 0 to 1 has been carried out by combining molecular
dynamics (MD) and X-ray absorption spectroscopy (XAS). The XAS and
MD results show that changes take place in the La3+ first
solvation shell when moving from pure MeOH to pure EAN. With increasing
the ionic liquid content of the mixture, the La3+ first-shell
complex progressively loses MeOH molecules to accommodate more and
more nitrate anions. Except in pure EAN, the La3+ ion is
always able to coordinate both MeOH and nitrate anions, with a ratio
between the two ligands that changes continuously in the entire concentration
range. When moving from pure MeOH to pure EAN, the La3+ first solvation shell passes from a 10-fold bicapped square antiprism
geometry where all the nitrate anions act only as monodentate ligands
to a 12-coordinated icosahedral structure in pure EAN where the nitrate
anions bind the La3+ cation both in mono- and bidentate
modes. The La3+ solvation structure formed in the MeOH/EAN
mixtures shows a great adaptability to changes in the composition,
allowing the system to reach the ideal compromise among all of the
different interactions that take place into it. The structural properties of the La(NO3)3 salt dissolved into EAN/methanol mixtures were
characterized
by molecular dynamics and X-ray absorption spectroscopy. The La3+ solvation shell undergoes significant changes with increasing
the ionic liquid content of the mixture, progressively losing methanol
molecules to accommodate more and more nitrate anions. The La3+ solvation structure shows great adaptability to composition
changes, passing from a 10-fold bicapped square antiprism geometry
in pure methanol to a 12-coordinated icosahedral complex in EAN.
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Affiliation(s)
- Valentina Migliorati
- Dipartimento di Chimica, "La Sapienza" Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Alice Gibiino
- Dipartimento di Chimica, "La Sapienza" Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Andrea Lapi
- Dipartimento di Chimica, "La Sapienza" Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Matteo Busato
- Dipartimento di Chimica, "La Sapienza" Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Paola D'Angelo
- Dipartimento di Chimica, "La Sapienza" Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy
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Mazan V, Boltoeva M. Aqueous N-H acid bis(trifluoromethylsulfonyl) imide Solution - [C4mim][Tf2N] Ionic Liquid Biphasic System: an Original Investigation by Diffusion Ordered Spectroscopy Nuclear Magnetic Resonance. J Fluor Chem 2021. [DOI: 10.1016/j.jfluchem.2021.109782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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Okamura H, Hirayama N. Recent Progress in Ionic Liquid Extraction for the Separation of Rare Earth Elements. ANAL SCI 2021; 37:119-130. [PMID: 33100311 DOI: 10.2116/analsci.20sar11] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This review summarizes recent progress in solvent extraction of rare earth elements (REEs) using an ionic liquid (IL) as the extraction solvent. These IL extraction systems are advantageous owing to the affinity of ILs for both charged and neutral hydrophobic species, in contrast to conventional organic solvent extraction systems. Herein, REE extraction studies using ILs are detailed and classified based on the type of extraction system, namely extraction using anionic ligands, extraction using neutral ligands, synergistic extraction, extraction without extractants, and a specific system using task-specific ionic liquids (TSILs). In IL extraction systems, the extracted complexes are often different from those in organic solvent systems, and the REE extraction and separation efficiencies are often significantly enhanced. Synergistic IL extraction is an effective approach to improving the extractability and separability of REEs. The development of novel TSILs suitable for IL extraction systems is also effective for REE separation.
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Affiliation(s)
- Hiroyuki Okamura
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan.
| | - Naoki Hirayama
- Department of Chemistry, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, 274-8510, Japan
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5
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Complexation of CMPO with trivalent f-cations in ionic liquid medium: Solvent extraction, spectroscopic, EXAFS and DFT studies. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.01.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Gujar RB, Verma PK, Ansari SA, Mohapatra PK. Complexation of 2-thenoyltrifluoroacetone (HTTA) with trivalent f-cations in an ionic liquid: solvent extraction and spectroscopy studies. NEW J CHEM 2019. [DOI: 10.1039/c9nj03177d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
HTTA forms M(TTA)2+, M(TTA)2+, M(TTA)3° and M(TTA)4− complexes with lanthanides. Complexation is strongly favoured when the salt of TTA− is used.
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Affiliation(s)
- Rajesh B. Gujar
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Trombay
- Mumbai – 400085
- India
| | - Parveen K. Verma
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Trombay
- Mumbai – 400085
- India
| | - Seraj A. Ansari
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Trombay
- Mumbai – 400085
- India
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7
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Busato M, D’Angelo P, Melchior A. Solvation of Zn2+ ion in 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquids: a molecular dynamics and X-ray absorption study. Phys Chem Chem Phys 2019; 21:6958-6969. [PMID: 30869085 DOI: 10.1039/c8cp07773h] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular dynamics simulations and X-ray absorption spectroscopy were employed to study Zn2+ ions in [Cnmim][Tf2N] (n = 2, 4).
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Affiliation(s)
- Matteo Busato
- DPIA
- Laboratorio di Scienze e Tecnologie Chimiche
- Università di Udine
- 33100 Udine
- Italy
| | - Paola D’Angelo
- Dipartimento di Chimica
- Università di Roma “La Sapienza”
- 00185 Roma
- Italy
| | - Andrea Melchior
- DPIA
- Laboratorio di Scienze e Tecnologie Chimiche
- Università di Udine
- 33100 Udine
- Italy
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8
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Sun P, Huang K, Liu H. The nature of salt effect in enhancing the extraction of rare earths by non-functional ionic liquids: Synergism of salt anion complexation and Hofmeister bias. J Colloid Interface Sci 2018; 539:214-222. [PMID: 30580177 DOI: 10.1016/j.jcis.2018.12.058] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/12/2018] [Accepted: 12/14/2018] [Indexed: 10/27/2022]
Abstract
Separation and recycling of rare-earths using ionic liquids as extractant are becoming a promising approach to replace traditional volatile organic solvents in recent years. Generally, the addition of some special salts could improve the extraction efficiency of rare-earths by numerous non-functional ionic liquids. However, knowledge behind the nature of the salt effect is limited. Here, we found that the enhancement in the extraction of rare-earth ions, Pr3+ ions, using non-functional ionic liquid, [A336][NO3] (Tricaprylmethylammonium nitrate) was driven by the synergism of Hofmeister bias and complexation behaviors of salt anions with Pr3+ ions. Molecular dynamic simulations offered a new insight into the interaction mechanism of the ionic liquid with Pr3+ ions at liquid/liquid interface. It was revealed that salt anions could perform as a bridge to connect Pr3+ ions and the ionic liquid, so that promoted the extraction of Pr3+ ions. Therefore, the strong complexation ability of salt anions with Pr3+ ions and poor hydration of salt anions faciliated the transport of Pr3+ ions across liquid/liquid interface.
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Affiliation(s)
- Pan Sun
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Kun Huang
- School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, PR China; CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China.
| | - Huizhou Liu
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
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9
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Ansari SA, Mohapatra PK, Musharaf Ali S, Rawat N, Tomar BS, Leoncini A, Huskens J, Verboom W. Complexation thermodynamics of tetraalkyl diglycolamides with trivalent f-elements in ionic liquids: spectroscopic, microcalorimetric and computational studies. NEW J CHEM 2018. [DOI: 10.1039/c7nj03925e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The thermodynamics of lanthanide complexation with DGA ligands was studied in an ionic liquid.
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Affiliation(s)
- Seraj A. Ansari
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400 085
- India
| | | | - Sk. Musharaf Ali
- Chemical Engineering Division
- Bhabha Atomic Research Centre
- Mumbai
- India
| | - Neetika Rawat
- Radioanalytical Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai
- India
| | - Bhupinder S. Tomar
- Radioanalytical Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai
- India
| | - Andrea Leoncini
- Laboratory of Molecular Nanofabrication
- MESA+ Institute for Nanotechnology
- University of Twente
- 7500 AE Enschede
- The Netherlands
| | - Jurriaan Huskens
- Laboratory of Molecular Nanofabrication
- MESA+ Institute for Nanotechnology
- University of Twente
- 7500 AE Enschede
- The Netherlands
| | - Willem Verboom
- Laboratory of Molecular Nanofabrication
- MESA+ Institute for Nanotechnology
- University of Twente
- 7500 AE Enschede
- The Netherlands
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10
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Wu W, Sun T, Pu N, Meng D, Li Y, Dang J, Yang Y, Chen J, Xu C. Thermodynamic and spectroscopic study on the solvation and complexation behavior of Ln(iii) in ionic liquids: binding of Ln(iii) with CMPO in C4mimNTf2. NEW J CHEM 2018. [DOI: 10.1039/c8nj00344k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermodynamics of Ln(iii) complexation with CMPO in “dry” and “wet” ionic liquids reflects how solvation of Ln(iii) affects the complexation and helps identify the extractive species involved in solvent extraction.
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Affiliation(s)
- Wenchao Wu
- Collaborative Innovation Center of Advanced Nuclear Energy Technology
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing
- China
| | - Taoxiang Sun
- Collaborative Innovation Center of Advanced Nuclear Energy Technology
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing
- China
| | - Ning Pu
- Collaborative Innovation Center of Advanced Nuclear Energy Technology
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing
- China
| | - Dechao Meng
- Collaborative Innovation Center of Advanced Nuclear Energy Technology
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing
- China
| | - Youzhen Li
- Collaborative Innovation Center of Advanced Nuclear Energy Technology
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing
- China
| | - Jiahao Dang
- Collaborative Innovation Center of Advanced Nuclear Energy Technology
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing
- China
| | - Ying Yang
- State Key Laboratory of Heavy Oil Processing
- China University of Petroleum
- Beijing
- China
| | - Jing Chen
- Collaborative Innovation Center of Advanced Nuclear Energy Technology
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing
- China
| | - Chao Xu
- Collaborative Innovation Center of Advanced Nuclear Energy Technology
- Institute of Nuclear and New Energy Technology
- Tsinghua University
- Beijing
- China
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11
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Wu Q, Sun T, Meng X, Chen J, Xu C. Thermodynamic Insight into the Solvation and Complexation Behavior of U(VI) in Ionic Liquid: Binding of CMPO with U(VI) Studied by Optical Spectroscopy and Calorimetry. Inorg Chem 2017; 56:3014-3021. [PMID: 28212016 DOI: 10.1021/acs.inorgchem.6b03132] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The complexation of U(VI) with octylphenyl-N,N-diisobutylcarbamoylmethylphosphine oxide (CMPO, denoted as L) in ionic liquid (IL) C4mimNTf2 was investigated by UV-vis absorption spectrophotometry and isothermal titration calorimetry. Spectro-photometric titration suggests that three successive complexes, UO2Lj2+ (j = 1-3), formed both in "dry" (water content < 250 ppm) and "wet" (water content ≈ 12 500 ppm) ionic liquid. However, the thermodynamic parameters are distinctly different in the two ILs. In dry IL, the complexation strength between CMPO and U(VI) is much stronger, with stability constants of the respective complexes more than 1 order of magnitude higher than that in wet IL. Energetically, the complexation of U(VI) with CMPO in dry IL is mainly driven by negative enthalpies. In contrast, the complexation in wet IL is overwhelmingly driven by highly positive entropies as a result of the release of a large amount of water molecules from the solvation sphere of U(VI). Moreover, comparisons between the fitted absorption spectra of complexes in wet IL and that of extractive samples from solvent extraction have identified the speciation involved in the extraction of U(VI) by CMPO in ionic liquid. The results from this study not only offer a thermodynamic insight into the complexation behavior of U(VI) with CMPO in IL but also provide valuable information for understanding the extraction behavior in the corresponding solvent extraction system.
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Affiliation(s)
- Qi Wu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum , Beijing 102249, China
| | | | - Xianghai Meng
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum , Beijing 102249, China
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12
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Zarrougui R, Mdimagh R, Raouafi N. Highly efficient and eco-friendly extraction of neodymium using, undiluted and non-fluorinated ionic liquids. Direct electrochemical metal separation. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.11.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Okamura H, Aoyagi N, Shimojo K, Naganawa H, Imura H. Role of Tf2N− anions in the ionic liquid–water distribution of europium(iii) chelates. RSC Adv 2017. [DOI: 10.1039/c6ra27208h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The replacement of water molecules of [Eu(tta)3(H2O)3] with Tf2N− was evidenced in water-saturated [Cnmim][Tf2N] by time-resolved laser-induced fluorescence spectroscopy.
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Affiliation(s)
- Hiroyuki Okamura
- Advanced Science Research Center
- Japan Atomic Energy Agency
- Tokai
- Japan
| | - Noboru Aoyagi
- Nuclear Science and Engineering Center
- Japan Atomic Energy Agency
- Tokai
- Japan
| | - Kojiro Shimojo
- Advanced Science Research Center
- Japan Atomic Energy Agency
- Tokai
- Japan
| | | | - Hisanori Imura
- Faculty of Chemistry
- Institute of Science and Engineering
- Kanazawa University
- Kanazawa 920-1192
- Japan
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14
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Ansari SA, Mohapatra PK, Leoncini A, Huskens J, Verboom W. Benzene-centred tripodal diglycolamides for the sequestration of trivalent actinides: metal ion extraction and luminescence spectroscopic investigations in a room temperature ionic liquid. Dalton Trans 2017; 46:11355-11362. [DOI: 10.1039/c7dt01954h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Three benzene-centred tripodal diglycolamide (Bz-T-DGA) ligands were evaluated for actinide ion extraction/complexation in an ionic liquid medium.
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Affiliation(s)
- Seraj Ahmad Ansari
- Radiochemistry Division
- Bhabha Atomic Research Centre
- Mumbai – 400 085
- India
| | | | - Andrea Leoncini
- Molecular Nanofabrication Group
- MESA+ Institute for Nanotechnology
- University of Twente
- 7500 AE Enschede
- The Netherlands
| | - Jurriaan Huskens
- Molecular Nanofabrication Group
- MESA+ Institute for Nanotechnology
- University of Twente
- 7500 AE Enschede
- The Netherlands
| | - Willem Verboom
- Molecular Nanofabrication Group
- MESA+ Institute for Nanotechnology
- University of Twente
- 7500 AE Enschede
- The Netherlands
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15
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Ansari SA, Gujar RB, Mohapatra PK. Complexation of tetraalkyl diglycolamides with trivalent f-cations in a room temperature ionic liquid: extraction and spectroscopic investigations. Dalton Trans 2017; 46:7584-7593. [DOI: 10.1039/c7dt01090g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper reports the complexation of a series of tetraalkyl diglycolamides (TRDGA) with trivalent f-cations in a room temperature ionic liquid,viz. 3-octyl-1-methylimidazolium bis(trifluoromethanesulfonyl)imide ([C8mim][Tf2N]).
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16
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Gujar RB, Ansari SA, Sengupta A, Murali MS, Mohapatra PK. Extractive complexation of lanthanides and Am(III) by 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone in ionic liquid: Solvent extraction and spectroscopic studies. INORG CHEM COMMUN 2016. [DOI: 10.1016/j.inoche.2016.09.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Melchior A, Gaillard C, Gràcia Lanas S, Tolazzi M, Billard I, Georg S, Sarrasin L, Boltoeva M. Nickel(II) Complexation with Nitrate in Dry [C4mim][Tf2N] Ionic Liquid: A Spectroscopic, Microcalorimetric, and Molecular Dynamics Study. Inorg Chem 2016; 55:3498-507. [DOI: 10.1021/acs.inorgchem.5b02937] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrea Melchior
- Dipartimento di
Chimica, Fisica e Ambiente, Università di Udine, Via Cotonificio
108, I-33100 Udine, Italy
| | - Clotilde Gaillard
- Institut de Physique Nucléaire de
Lyon, Université de Lyon, CNRS-IN2P3, 69622 Villeurbanne
cedex, France
| | - Sara Gràcia Lanas
- Dipartimento di
Chimica, Fisica e Ambiente, Università di Udine, Via Cotonificio
108, I-33100 Udine, Italy
| | - Marilena Tolazzi
- Dipartimento di
Chimica, Fisica e Ambiente, Università di Udine, Via Cotonificio
108, I-33100 Udine, Italy
| | - Isabelle Billard
- Université Grenoble Alpes, LEPMI, CNRS, F-38000 Grenoble, France
- CNRS, LEPMI, F-38000, Grenoble, France
| | - Sylvia Georg
- Université de Strasbourg, IPHC, 23 rue du Lœss 67037 Strasbourg, France
| | - Lola Sarrasin
- Institut de Physique Nucléaire de
Lyon, Université de Lyon, CNRS-IN2P3, 69622 Villeurbanne
cedex, France
| | - Maria Boltoeva
- Université de Strasbourg, IPHC, 23 rue du Lœss 67037 Strasbourg, France
- CNRS, UMR7178, 67037 Strasbourg, France
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18
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Li C, Wu L, Chen L, Yuan X, Cai Y, Feng W, Liu N, Ren Y, Sengupta A, Murali MS, Mohapatra PK, Tao G, Zeng H, Ding S, Yuan L. Highly efficient extraction of actinides with pillar[5]arene-derived diglycolamides in ionic liquids via a unique mechanism involving competitive host–guest interactions. Dalton Trans 2016; 45:19299-19310. [DOI: 10.1039/c6dt04229e] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel extraction mechanism is described.
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19
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Ansari SA, Mohapatra PK, Verboom W, Zhang Z, Dau PD, Gibson JK, Rao L. Binding of pyrazine-functionalized calix[4]arene ligands with lanthanides in an ionic liquid: thermodynamics and coordination modes. Dalton Trans 2015; 44:6416-22. [DOI: 10.1039/c5dt00049a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Complexation thermodynamics of Eu3+ with pyrazine-functionalized calix[4]arene in ionic liquid was investigated by absorption spectroscopy, luminescence spectroscopy and microcalorimetry.
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Affiliation(s)
- Seraj A. Ansari
- Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
- Radiochemistry Division
| | | | - Willem Verboom
- Laboratory of Molecular Nanofabrication
- Institute for Nanotechnology
- University of Twente
- 7500 AE Enschede
- The Netherlands
| | - Zhicheng Zhang
- Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Phuong D. Dau
- Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - John K. Gibson
- Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Linfeng Rao
- Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
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