1
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Dhakal D, Driscoll DM, Govind N, Stack AG, Rampal N, Schenter G, Mundy CJ, Fister TT, Fulton JL, Balasubramanian M, Seidler GT. The evolution of solvation symmetry and composition in Zn halide aqueous solutions from dilute to extreme concentrations. Phys Chem Chem Phys 2023; 25:22650-22661. [PMID: 37592924 DOI: 10.1039/d3cp01559a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
The emergence of cation-anion species, or contact ion pairs, is fundamental to understanding the physical properties of aqueous solutions when moving from the ideal, low-concentration limit to the manifestly non-ideal limits of very high solute concentration or constituent ion activity. We focus here on Zn halide solutions both as a model system and also as an exemplar of the applications spanning from (i) electrical energy storage via the paradigm of water in salt electrolyte (WiSE) to (ii) the physical chemistry of brines in geochemistry to (iii) the long-standing problem of nucleation. Using a combination of experimental and theoretical approaches we quantify the halide coordination number and changing coordination geometry without embedded use of theoretical equilibrium constants. These results and the associated methods, notably including the use of valence-to-core X-ray emission spectroscopy, provide new insights into the Zn halide system and new research directions in the physical chemistry of concentrated electrolytes.
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Affiliation(s)
- Diwash Dhakal
- Materials Science and Engineering Department, University of Washington, Seattle, WA 98195, USA
| | - Darren M Driscoll
- X-ray Sciences Division, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Niranjan Govind
- Physical Science Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Andrew G Stack
- Chemical Sciences Division, Oak Ridge National Laboratory, TN, 37831, USA
| | - Nikhil Rampal
- Chemical Sciences Division, Oak Ridge National Laboratory, TN, 37831, USA
- Department of Chemical Engineering, Columbia University, New York, NY 10027, USA
| | - Gregory Schenter
- Physical Science Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Christopher J Mundy
- Physical Science Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | - Timothy T Fister
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, IL 60439, USA
| | - John L Fulton
- Physical Science Division, Pacific Northwest National Laboratory, Richland, WA 99352, USA
| | | | - Gerald T Seidler
- Physics Department, University of Washington, Seattle, WA 98195, USA.
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2
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Production of fast-charge Zn-based aqueous batteries via interfacial adsorption of ion-oligomer complexes. Nat Commun 2022; 13:2283. [PMID: 35477721 PMCID: PMC9046403 DOI: 10.1038/s41467-022-29954-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 04/08/2022] [Indexed: 12/04/2022] Open
Abstract
Aqueous zinc batteries are attracting interest because of their potential for cost-effective and safe electricity storage. However, metallic zinc exhibits only moderate reversibility in aqueous electrolytes. To circumvent this issue, we study aqueous Zn batteries able to form nanometric interphases at the Zn metal/liquid electrolyte interface, composed of an ion-oligomer complex. In Zn||Zn symmetric cell studies, we report highly reversible cycling at high current densities and capacities (e.g., 160 mA cm−2; 2.6 mAh cm−2). By means of quartz-crystal microbalance, nuclear magnetic resonance, and voltammetry measurements we show that the interphase film exists in a dynamic equilibrium with oligomers dissolved in the electrolyte. The interphase strategy is applied to aqueous Zn||I2 and Zn||MnO2 cells that are charged/discharged for 12,000 cycles and 1000 cycles, respectively, at a current density of 160 mA cm−2 and capacity of approximately 0.85 mAh cm−2. Finally, we demonstrate that Zn||I2-carbon pouch cells (9 cm2 area) cycle stably and deliver a specific energy of 151 Wh/kg (based on the total mass of active materials in the electrode) at a charge current density of 56 mA cm−2. Aqueous zinc batteries attract interest because of their potential for cost-effective and safe electricity storage. Here, the authors develop an in situ formed ion-oligomer nanometric interphase strategy to enable fast-charge aqueous Zn cells.
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3
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On the physical properties of mixtures of nitrate salts and protic ionic liquids. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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4
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Luin U, Arčon I, Valant M. Structure and Population of Complex Ionic Species in FeCl 2 Aqueous Solution by X-ray Absorption Spectroscopy. Molecules 2022; 27:642. [PMID: 35163907 PMCID: PMC8839570 DOI: 10.3390/molecules27030642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/13/2022] [Accepted: 01/18/2022] [Indexed: 11/16/2022] Open
Abstract
Technologies for mass production require cheap and abundant materials such as ferrous chloride (FeCl2). The literature survey shows the lack of experimental studies to validate theoretical conclusions related to the population of ionic Fe-species in the aqueous FeCl2 solution. Here, we present an in situ X-ray absorption study of the structure of the ionic species in the FeCl2 aqueous solution at different concentrations (1-4 molL-1) and temperatures (25-80 °C). We found that at low temperature and low FeCl2 concentration, the octahedral first coordination sphere around Fe is occupied by one Cl ion at a distance of 2.33 (±0.02) Å and five water molecules at a distance of 2.095 (±0.005) Å. The structure of the ionic complex gradually changes with an increase in temperature and/or concentration. The apical water molecule is substituted by a chlorine ion to yield a neutral Fe[Cl2(H2O)4]0. The observed substitutional mechanism is facilitated by the presence of the intramolecular hydrogen bonds as well as entropic reasons. The transition from the single charged Fe[Cl(H2O)5]+ to the neutral Fe[Cl2(H2O)4]0 causes a significant drop in the solution conductivity, which well correlates with the existing conductivity models.
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Affiliation(s)
- Uroš Luin
- Materials Research Laboratory, University of Nova Gorica, Vipavska 13, SI-5001 Nova Gorica, Slovenia; (U.L.); (I.A.)
| | - Iztok Arčon
- Materials Research Laboratory, University of Nova Gorica, Vipavska 13, SI-5001 Nova Gorica, Slovenia; (U.L.); (I.A.)
- Department of Low and Medium Energy Physics, J. Stefan Institute, Jamova 39, SI-1001 Ljubljana, Slovenia
| | - Matjaz Valant
- Materials Research Laboratory, University of Nova Gorica, Vipavska 13, SI-5001 Nova Gorica, Slovenia; (U.L.); (I.A.)
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5
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Lommelen R, Binnemans K. Hard-Soft Interactions in Solvent Extraction with Basic Extractants: Comparing Zinc and Cadmium Halides. ACS OMEGA 2021; 6:27924-27935. [PMID: 34722992 PMCID: PMC8554786 DOI: 10.1021/acsomega.1c03790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Indexed: 06/13/2023]
Abstract
Solvent extraction is often applied to separate and purify metals on an industrial scale. Nevertheless, solvent extraction processes are challenging to develop because of the complex chemistry involved. For basic extractants, much of the chemical behavior remains poorly understood due to the conditions far from thermodynamic ideality. To elucidate the extraction mechanism, we studied the speciation and extraction of zinc(II) and cadmium(II) from chloride, bromide, and iodide media by using a basic extractant consisting of a trioctylmethylammonium cation and, respectively, a chloride, bromide, or iodide anion. These systems were specifically selected to increase the understanding of the less-studied bromide and iodide media and to focus on the effect of hard-soft interactions on solvent extraction systems. It was observed that, in general, a metal is more efficiently extracted when its hydration in the aqueous phase is lower and its stabilization in the organic phase is higher. In the investigated systems, these conditions are obtained by forming metal complexes with a lower charge density by coordinating the right number of halide anions and by selecting a halide with a lower charge density. In the organic phase, the stability of the metal complex can be increased by forming strong metal-anion bonds and by decreasing the water content. These insights might be of interest in the development and optimization of separation schemes for metals.
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Affiliation(s)
- Rayco Lommelen
- Department of Chemistry, KU
Leuven, Celestijnenlaan
200F, P.O. box 2404, Leuven B-3001, Belgium
| | - Koen Binnemans
- Department of Chemistry, KU
Leuven, Celestijnenlaan
200F, P.O. box 2404, Leuven B-3001, Belgium
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6
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Smirnov PR, Grechin OV. STRUCTURE OF THE IMMEDIATE ENVIRONMENT OF IONS IN ZINC CHLORIDE AQUEOUS SOLUTIONS ACCORDING TO XRD DATA. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621070052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Bryant SJ, Garcia A, Clarke RJ, Warr GG. Selective ion transport across a lipid bilayer in a protic ionic liquid. SOFT MATTER 2021; 17:2688-2694. [PMID: 33533359 DOI: 10.1039/d0sm02225j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ionic liquids (ILs) have exhibited enormous potential as electrolytes, designer solvents and reaction media, as well as being surprisingly effective platforms for amphiphile self-assembly and for preserving structure of complex biomolecules. This has led to their exploration as media for long-term biopreservation and in biosensors, for which their viability depends on their ability to sustain both structure and function within complex, multicomponent nanoscale compartments and assemblies. Here we show that a tethered lipid bilayer can be assembled directly in a purely IL environment that retains its structure upon exchange between IL and aqueous buffer, and that the membrane transporter valinomycin can be incorporated so as to retain its functionality and cation selectivity. This paves the way for the development of long-lived, non-aqueous microreactors and sensor assemblies, and demonstrates the potential for complex proteins to retain functionality in non-aqueous, ionic liquid solvents.
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Affiliation(s)
- Saffron J Bryant
- School of Chemistry, The University of Sydney, NSW 2006, Australia and School of Science, RMIT University, Melbourne, Victoria 3001, Australia.
| | - Alvaro Garcia
- School of Chemistry, The University of Sydney, NSW 2006, Australia and School of Life Sciences, University of Technology Sydney, NSW 2007, Australia
| | - Ronald J Clarke
- School of Chemistry, The University of Sydney, NSW 2006, Australia
| | - Gregory G Warr
- School of Chemistry, The University of Sydney, NSW 2006, Australia and University of Sydney Nano Institute, The University of Sydney, NSW 2006, Australia
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8
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Buzanich AG, Kulow A, Kabelitz A, Grunewald C, Seidel R, Chapartegui-Arias A, Radtke M, Reinholz U, Emmerling F, Beyer S. Observation of early ZIF-8 crystallization stages with X-ray absorption spectroscopy. SOFT MATTER 2021; 17:331-334. [PMID: 33320159 DOI: 10.1039/d0sm01356k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The present study investigates early stages of ZIF-8 crystallization up to 5 minutes post mixing of precursor solutions. Dispersive X-ray Absorption Spectroscopy (DXAS) provides a refined understanding of the evolution of the coordination environment during ZIF-8 crystallization. Linear Combination Analysis (LCA) suggests tetrakis(1-methylimidazole)zinc2+ to be a suitable and stable mononuclear structure analogue for some early stage ZIF-8 intermediates. Our results pave the way for more detailed studies on physico-chemical aspects of ZIF-8 crystallization to better control tailoring ZIF-8 materials for specific applications.
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Affiliation(s)
- Ana Guilherme Buzanich
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Anicó Kulow
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Anke Kabelitz
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Christian Grunewald
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Robert Seidel
- Helmholtz-Zentrum Berlin für Materialien and Energie, Albert-Einstein-Strasse 15, 12489 Berlin, Germany and Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany
| | - Ander Chapartegui-Arias
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany and School of Analytical Sciences Adlershof, Albert-Einstein-Straße 5, D-12489 Berlin, Germany
| | - Martin Radtke
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Uwe Reinholz
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Franziska Emmerling
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany and Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany
| | - Sebastian Beyer
- Institute for Tissue Engineering and Regenerative Medicine, Chinese University of Hong Kong, Hong Kong, SAR, China and Department of Biomedical Engineering, Chinese University of Hong Kong, Hong Kong, SAR, China.
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9
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Saloga PEJ, Smales GJ, Clark AH, Thünemann AF. Zinc Phosphate Nanoparticles Produced in Saliva. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Patrick E. J. Saloga
- Bundesanstalt für Materialforschung und ‐prüfung (BAM) Unter den Eichen 87 12205 Berlin Germany
- Freie Universität Berlin, Fachbereich Biologie, Chemie, Pharmazie Takustraße 3 14195 Berlin Germany
| | - Glen J. Smales
- Bundesanstalt für Materialforschung und ‐prüfung (BAM) Unter den Eichen 87 12205 Berlin Germany
| | - Adam H. Clark
- Paul Scherrer Institut Forschungsstrasse 111 5232 Villigen PSI Switzerland
| | - Andreas F. Thünemann
- Bundesanstalt für Materialforschung und ‐prüfung (BAM) Unter den Eichen 87 12205 Berlin Germany
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10
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Ogawa T, Takahashi K, Nagarkar SS, Ohara K, Hong YL, Nishiyama Y, Horike S. Coordination polymer glass from a protic ionic liquid: proton conductivity and mechanical properties as an electrolyte. Chem Sci 2020; 11:5175-5181. [PMID: 34122974 PMCID: PMC8159284 DOI: 10.1039/d0sc01737j] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
High proton conducting electrolytes with mechanical moldability are a key material for energy devices. We propose an approach for creating a coordination polymer (CP) glass from a protic ionic liquid for a solid-state anhydrous proton conductor. A protic ionic liquid (dema)(H2PO4), with components which also act as bridging ligands, was applied to construct a CP glass (dema)0.35[Zn(H2PO4)2.35(H3PO4)0.65]. The structural analysis revealed that large Zn–H2PO4−/H3PO4 coordination networks formed in the CP glass. The network formation results in enhancement of the properties of proton conductivity and viscoelasticity. High anhydrous proton conductivity (σ = 13.3 mS cm−1 at 120 °C) and a high transport number of the proton (0.94) were achieved by the coordination networks. A fuel cell with this CP glass membrane exhibits a high open-circuit voltage and power density (0.15 W cm−2) under dry conditions at 120 °C due to the conducting properties and mechanical properties of the CP glass. A proton-conducting coordination polymer glass derived from a protic ionic liquid works as a moldable solid electrolyte and the anhydrous fuel cell showed I–V performance of 0.15 W cm−2 at 120 °C.![]()
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Affiliation(s)
- Tomohiro Ogawa
- AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL), National Institute of Advanced Industrial Science and Technology (AIST) Yoshida-Honmachi, Sakyo-ku Kyoto 606-8501 Japan .,Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University Yoshida-Honmachi, Sakyo-ku Kyoto 606-8501 Japan
| | - Kazuki Takahashi
- Advanced Research and Innovation Center, DENSO Corporation 500-1 Minamiyama, Komenoki-cho Nisshin Aichi 470-0111 Japan
| | - Sanjog S Nagarkar
- AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL), National Institute of Advanced Industrial Science and Technology (AIST) Yoshida-Honmachi, Sakyo-ku Kyoto 606-8501 Japan
| | - Koji Ohara
- Diffraction and Scattering Division, Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) Kouto Sayo Hyogo 679-5198 Japan
| | - You-Lee Hong
- RIKEN-JEOL Collaboration Center Yokohama Kanagawa 230-0045 Japan
| | - Yusuke Nishiyama
- RIKEN-JEOL Collaboration Center Yokohama Kanagawa 230-0045 Japan.,JEOL RESONANCE Inc. Akishima Tokyo 196-8558 Japan
| | - Satoshi Horike
- AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL), National Institute of Advanced Industrial Science and Technology (AIST) Yoshida-Honmachi, Sakyo-ku Kyoto 606-8501 Japan .,Institute for Integrated Cell-Material Sciences, Institute for Advanced Study, Kyoto University Yoshida-Honmachi, Sakyo-ku Kyoto 606-8501 Japan.,Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan.,Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology Rayong 21210 Thailand
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11
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Structural, Thermodiffusive and Thermoelectric Properties of Maghemite Nanoparticles Dispersed in Ethylammonium Nitrate. CHEMENGINEERING 2020. [DOI: 10.3390/chemengineering4010005] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Ethylammonium nitrate (ionic liquid) based ferrofluids with citrate-coated nanoparticles and Na + counterions were synthesized for a wide range of nanoparticle (NP) volume fractions ( Φ ) of up to 16%. Detailed structural analyses on these fluids were performed using magneto-optical birefringence and small angle X-ray scattering (SAXS) methods. Furthermore, the thermophoretic and thermodiffusive properties (Soret coefficient S T and diffusion coefficient D m ) were explored by forced Rayleigh scattering experiments as a function of T and Φ . They were compared to the thermoelectric potential (Seebeck coefficient, Se) properties induced in these fluids. The results were analyzed using a modified theoretical model on S T and Se adapted from an existing model developed for dispersions in more standard polar media which allows the determination of the Eastman entropy of transfer ( S ^ NP ) and the effective charge ( Z 0 e f f ) of the nanoparticles.
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12
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Sessa F, Migliorati V, Lapi A, D’Angelo P. Ce3+ and La3+ ions in ethylammonium nitrate: A XANES and molecular dynamics investigation. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.06.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Sessa F, Migliorati V, Serva A, Lapi A, Aquilanti G, Mancini G, D'Angelo P. On the coordination of Zn2+ ion in Tf2N− based ionic liquids: structural and dynamic properties depending on the nature of the organic cation. Phys Chem Chem Phys 2018; 20:2662-2675. [DOI: 10.1039/c7cp07497b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The Zn2+ coordination structure changes when the Zn(Tf2N)2 salt is dissolved in ionic liquids resulting in more favorable interactions among solvent cations and anions.
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Affiliation(s)
- Francesco Sessa
- Dipartimento di Chimica
- Università di Roma “La Sapienza”
- 00185 Roma
- Italy
| | | | - Alessandra Serva
- Dipartimento di Chimica
- Università di Roma “La Sapienza”
- 00185 Roma
- Italy
| | - Andrea Lapi
- Dipartimento di Chimica
- Università di Roma “La Sapienza”
- 00185 Roma
- Italy
- Istituto CNR di Metodologie Chimiche-IMC
| | | | | | - Paola D'Angelo
- Dipartimento di Chimica
- Università di Roma “La Sapienza”
- 00185 Roma
- Italy
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14
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Kanzaki R, Uchida S, Kodamatani H, Tomiyasu T. Copper(II) Chloro Complex Formation Thermodynamics and Structure in Ionic Liquid, 1-Butyl-3-Methylimidazolium Trifluoromethanesulfonate. J Phys Chem B 2017; 121:9659-9665. [PMID: 28937759 DOI: 10.1021/acs.jpcb.7b06287] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metal ions in ionic liquids are laid under an unprecedented reaction field. In order to assess the reaction thermodynamics of metal ions in such a situation, Cu2+-chloro complex formation was examined with spectroscopic and calorimetric titrations in an ionic liquid, 1-buthyl-3-methylimidazolium trifluoromethanesulfonate (C4mimTfO). In addition, the effect of the structure of the solvated complexes on the complexation mechanism was investigated with the aid of DFT calculations. Chloro complexation successively proceeded and finally provided a [CuCl4]2- species, which is also the final product in conventional molecular solvents. Their stability constants were comparable to those in molecular solvents. Interestingly, in spite of the charged solvent in the ionic liquid, the entropy profile of the complexation resembled that in the conventional molecular liquids. This indicates that the entropy gain of the released solvent species from the complexes is the main driving force of the chloro complexation in the ionic liquid. In contrast, unlike the major molecular solvents, the total coordination number of Cu2+ is saturated to 4 in the ionic liquid, and the Cl- complexation tends to be accompanied by a 1:1 exchange of the solvent TfO- from the complex. In addition, this ligand exchange was almost athermal. This possibly indicates that the coordination number is dominated by the electrostatic hindrance among the ligands including the solvent ions in the primary coordination sphere.
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Affiliation(s)
- Ryo Kanzaki
- Department of Earth and Environmental Sciences, Graduate School of Science and Engineering, Kagoshima University , Korimoto, Kagoshima 890-0065, Japan
| | - Shuma Uchida
- Department of Earth and Environmental Sciences, Graduate School of Science and Engineering, Kagoshima University , Korimoto, Kagoshima 890-0065, Japan
| | - Hitoshi Kodamatani
- Department of Earth and Environmental Sciences, Graduate School of Science and Engineering, Kagoshima University , Korimoto, Kagoshima 890-0065, Japan
| | - Takashi Tomiyasu
- Department of Earth and Environmental Sciences, Graduate School of Science and Engineering, Kagoshima University , Korimoto, Kagoshima 890-0065, Japan
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15
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Ducher M, Pietrucci F, Balan E, Ferlat G, Paulatto L, Blanchard M. van der Waals Contribution to the Relative Stability of Aqueous Zn(2+) Coordination States. J Chem Theory Comput 2017. [PMID: 28621954 DOI: 10.1021/acs.jctc.7b00455] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Many properties of aqueous cations depend on their coordination state. However, the lack of long-range order and the dynamic character of aqueous solutions make it difficult to obtain information beyond average coordination parameters. A thorough understanding of the molecular-scale environment of aqueous cations usually requires a combination of experimental and theoretical approaches. In the case of Zn2+, significant discrepancies occur among theoretical investigations based on first-principles molecular dynamics (FPMD) or free-energy calculations, although experimental data consistently point to a dominant hexaaquo-zinc complex (Zn[H2O]6)2+ in pure water. In the present study, the aqueous speciation of zinc is theoretically investigated by combining FPMD simulations and free-energy calculations based on metadynamics and umbrella-sampling strategies. The simulations are carried out within the density functional theory (DFT) framework using for the exchange-correlation functional either a standard generalized gradient approximation (GGA) or a nonlocal functional (vdw-DF2) which includes van der Waals interactions. The theoretical environment of Zn is confronted to experiment by comparing calculated and measured X-ray absorption spectra. It is shown that the inclusion of van der Waals interactions is crucial for the correct modeling of zinc aqueous speciation, whereas GGA incorrectly favors tetraaquo- (Zn[H2O]4)2+ and pentaaquo-zinc (Zn[H2O]5)2+ complexes, results obtained with the vdW-DF2 functional show that the hexaaquo-zinc complex is more stable than the tetraaquo and pentaaquo-zinc complexes by 13 and by 4 kJ mol-1, respectively. These results highlight the critical importance of even subtle interactions for the correct balance of different coordination states in aqueous solutions. However, for a given coordination state, GGA leads to a reasonable description of the geometry of the aqueous complex.
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Affiliation(s)
- Manoj Ducher
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Universités , UPMC Univ Paris 06, CNRS UMR 7590, Muséum National d'Histoire Naturelle, IRD UMR 206, 4 place Jussieu, F-75005 Paris, France
| | - Fabio Pietrucci
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Universités , UPMC Univ Paris 06, CNRS UMR 7590, Muséum National d'Histoire Naturelle, IRD UMR 206, 4 place Jussieu, F-75005 Paris, France
| | - Etienne Balan
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Universités , UPMC Univ Paris 06, CNRS UMR 7590, Muséum National d'Histoire Naturelle, IRD UMR 206, 4 place Jussieu, F-75005 Paris, France
| | - Guillaume Ferlat
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Universités , UPMC Univ Paris 06, CNRS UMR 7590, Muséum National d'Histoire Naturelle, IRD UMR 206, 4 place Jussieu, F-75005 Paris, France
| | - Lorenzo Paulatto
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Universités , UPMC Univ Paris 06, CNRS UMR 7590, Muséum National d'Histoire Naturelle, IRD UMR 206, 4 place Jussieu, F-75005 Paris, France
| | - Marc Blanchard
- GET, CNRS UMR 5563, IRD UR 234, Université Paul-Sabatier , Observatoire Midi-Pyrénées, 14 avenue Edouard Belin, 31400 Toulouse, France
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16
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Serva A, Migliorati V, Spezia R, D'Angelo P. How Does CeIII
Nitrate Dissolve in a Protic Ionic Liquid? A Combined Molecular Dynamics and EXAFS Study. Chemistry 2017; 23:8424-8433. [DOI: 10.1002/chem.201604889] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Alessandra Serva
- Dipartimento di Chimica; Università di Roma “La Sapienza”; P. le A. Moro 5 00185 Roma Italy
| | - Valentina Migliorati
- Dipartimento di Chimica; Università di Roma “La Sapienza”; P. le A. Moro 5 00185 Roma Italy
| | - Riccardo Spezia
- LAMBE CEA, CNRS; Université Paris Saclay; 91025 Evry Cedex France
- LAMBE Université d'Evry; 91025 Evry Cedex France
| | - Paola D'Angelo
- Dipartimento di Chimica; Università di Roma “La Sapienza”; P. le A. Moro 5 00185 Roma Italy
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17
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Murphy T, Callear SK, Warr GG, Atkin R. Dissolved chloride markedly changes the nanostructure of the protic ionic liquids propylammonium and ethanolammonium nitrate. Phys Chem Chem Phys 2016; 18:17169-82. [DOI: 10.1039/c5cp06947e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The bulk nanostructure of 15 mol% propylammonium chloride (PACl) dissolved in propylammonium nitrate (PAN) and 15 mol% ethanolammonium chloride (EtACl) in ethanolammonium nitrate (EtAN) has been determined using neutron diffraction with empirical potential structure refinement fits.
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Affiliation(s)
- Thomas Murphy
- Priority Research Centre for Advanced Fluids and Interfaces
- The University of Newcastle
- Callaghan
- Australia
| | | | | | - Rob Atkin
- Priority Research Centre for Advanced Fluids and Interfaces
- The University of Newcastle
- Callaghan
- Australia
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18
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Parmentier D, Vander Hoogerstraete T, Banerjee D, Valia YA, Metz SJ, Binnemans K, Kroon MC. A mechanism for solvent extraction of first row transition metals from chloride media with the ionic liquid tetraoctylammonium oleate. Dalton Trans 2016; 45:9661-8. [DOI: 10.1039/c6dt00833j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The extraction mechanism of cobalt, nickel and zinc with the ionic liquid tetraoctylammonium oleate is reported.
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Affiliation(s)
- Dries Parmentier
- Wetsus
- European Centre of Excellence for Sustainable Water Technology
- 8911 MA Leeuwarden
- The Netherlands
- Department of Chemical Engineering and Chemistry
| | | | - Dipanjan Banerjee
- Dutch-Belgian Beamline (DUBBLE)
- ESRF – The European Synchrotron
- 38043 Grenoble Cedex 9
- France
| | - Yash A. Valia
- Wetsus
- European Centre of Excellence for Sustainable Water Technology
- 8911 MA Leeuwarden
- The Netherlands
- Department of Chemical Engineering and Chemistry
| | - Sybrand J. Metz
- Wetsus
- European Centre of Excellence for Sustainable Water Technology
- 8911 MA Leeuwarden
- The Netherlands
| | | | - Maaike C. Kroon
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5612 AZ Eindhoven
- The Netherlands
- Department of Chemical Engineering
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19
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Greaves TL, Drummond CJ. Protic Ionic Liquids: Evolving Structure-Property Relationships and Expanding Applications. Chem Rev 2015; 115:11379-448. [PMID: 26426209 DOI: 10.1021/acs.chemrev.5b00158] [Citation(s) in RCA: 513] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tamar L Greaves
- School of Applied Sciences, College of Science, Engineering and Health, RMIT University , GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Calum J Drummond
- School of Applied Sciences, College of Science, Engineering and Health, RMIT University , GPO Box 2476, Melbourne, Victoria 3001, Australia
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20
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Affiliation(s)
- Robert Hayes
- Discipline
of Chemistry, The University of Newcastle, NSW 2308, Callaghan, Australia
| | - Gregory G. Warr
- School
of Chemistry, The University of Sydney, NSW 2006, Sydney, Australia
| | - Rob Atkin
- Discipline
of Chemistry, The University of Newcastle, NSW 2308, Callaghan, Australia
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21
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El-Safty SA, Sakai M, Selim MM, Alhamide AA. One-pot layer casting-guided synthesis of nanospherical aluminosilica@organosilica@alumina core–shells wrapping colorant dendrites for environmental application. RSC Adv 2015. [DOI: 10.1039/c5ra10324j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Wrapping of dendritic colorant aggregates around core–double shell cavities afforded a container vehicle tracking architecture for recovering toxins in environments.
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Affiliation(s)
- Sherif A. El-Safty
- National Institute for Materials Science (NIMS)
- Tsukuba-shi
- Japan
- Graduate School for Advanced Science and Engineering
- Waseda University
| | - Masaru Sakai
- Centre for Research in Isotopes & Environmental Dynamics
- Tsukuba University
- Tsukuba-shi
- Japan
| | - Mahmoud M. Selim
- Department of Mathematics & Physics
- Al-Aflaj College of Science and Human Studies
- Prince Sattam Bin Abdulaziz University
- Al-Aflaj 710-11912
- Saudi Arabia
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22
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Zhang G, Li J, Deng Y, Miller JT, Kropf AJ, Bunel EE, Lei A. Structure-kinetic relationship study of organozinc reagents. Chem Commun (Camb) 2014; 50:8709-11. [PMID: 24964262 DOI: 10.1039/c4cc01135j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phenylzinc reagents prepared from various zinc halides show distinct kinetic features in the palladium-catalyzed Negishi-type oxidative coupling reaction, in which the phenylzinc reagent prepared from ZnI2 gives the highest rate. In situ infrared and X-ray absorption spectroscopy studies show that the higher reaction rate was observed for longer Zn-C bond distances.
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Affiliation(s)
- Guanghui Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, China.
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23
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Radical decomposition of hydrogen peroxide catalyzed by aqua complexes [M(H2O)n]2+ (M=Be, Zn, Cd). J Catal 2014. [DOI: 10.1016/j.jcat.2014.03.010] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Sharma V, Böhm F, Seitz M, Schwaab G, Havenith M. From solvated ions to ion-pairing: a THz study of lanthanum(iii) hydration. Phys Chem Chem Phys 2013; 15:8383-91. [DOI: 10.1039/c3cp50865j] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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