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Dupont J, Leal BC, Lozano P, Monteiro AL, Migowski P, Scholten JD. Ionic Liquids in Metal, Photo-, Electro-, and (Bio) Catalysis. Chem Rev 2024; 124:5227-5420. [PMID: 38661578 DOI: 10.1021/acs.chemrev.3c00379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Ionic liquids (ILs) have unique physicochemical properties that make them advantageous for catalysis, such as low vapor pressure, non-flammability, high thermal and chemical stabilities, and the ability to enhance the activity and stability of (bio)catalysts. ILs can improve the efficiency, selectivity, and sustainability of bio(transformations) by acting as activators of enzymes, selectively dissolving substrates and products, and reducing toxicity. They can also be recycled and reused multiple times without losing their effectiveness. ILs based on imidazolium cation are preferred for structural organization aspects, with a semiorganized layer surrounding the catalyst. ILs act as a container, providing a confined space that allows modulation of electronic and geometric effects, miscibility of reactants and products, and residence time of species. ILs can stabilize ionic and radical species and control the catalytic activity of dynamic processes. Supported IL phase (SILP) derivatives and polymeric ILs (PILs) are good options for molecular engineering of greener catalytic processes. The major factors governing metal, photo-, electro-, and biocatalysts in ILs are discussed in detail based on the vast literature available over the past two and a half decades. Catalytic reactions, ranging from hydrogenation and cross-coupling to oxidations, promoted by homogeneous and heterogeneous catalysts in both single and multiphase conditions, are extensively reviewed and discussed considering the knowledge accumulated until now.
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Affiliation(s)
- Jairton Dupont
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
- Departamento de Bioquímica y Biología Molecular B e Inmunología, Facultad de Química, Universidad de Murcia, P.O. Box 4021, E-30100 Murcia, Spain
| | - Bárbara C Leal
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
| | - Pedro Lozano
- Departamento de Bioquímica y Biología Molecular B e Inmunología, Facultad de Química, Universidad de Murcia, P.O. Box 4021, E-30100 Murcia, Spain
| | - Adriano L Monteiro
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
| | - Pedro Migowski
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
| | - Jackson D Scholten
- Institute of Chemistry - Universidade Federal do Rio Grande do Sul - UFRGS, Avenida Bento Gonçalves, 9500, Porto Alegre 91501-970 RS, Brasil
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2
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Ubovich M, Matveev VV, Vovk MA, Chizhik VI. The State of Water in "Ionic Liquid [bmim]Cl/AlCl 3/H 2O" Systems. J Phys Chem Lett 2023; 14:9324-9328. [PMID: 37819107 DOI: 10.1021/acs.jpclett.3c01965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
The unique physical and chemical properties of ionic liquids (ILs) determine their numerous applications in "green" chemistry and material science. Recently, systems based on ILs have been considered to be promising for use in a new generation of electrochemical devices. The results of a nuclear magnetic resonance (NMR) study of the microstructure of 1-butyl-3-methylimidazolium chloride (IL)/water mixtures in the presence of Al3+ cations are presented. For the first time, the splitting of spectral lines of water in such systems has been recorded. Comparing the 1H and 27Al NMR data, we have detected the existence of different solvate complexes of Al3+ with Cl- and estimated the characteristic times of exchange processes. For the system under study, a model of the Al3+ cation environment and its evolution with temperature and water content has been described. Quantum-chemical calculations have been performed to substantiate the model.
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Affiliation(s)
- Milosh Ubovich
- Department of Nuclear Physics Research Methods, Saint Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia
| | - Vladimir V Matveev
- Department of Nuclear Physics Research Methods, Saint Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia
| | - Mikhail A Vovk
- Center for Magnetic Resonance, Research Park, Saint Petersburg State University, Universitetskiy pr. 26, 198504 Saint Petersburg, Russia
| | - Vladimir I Chizhik
- Department of Nuclear Physics Research Methods, Saint Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia
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Novel Copper Tagged Supported Ionic Liquid Phase Catalyst for the Synthesis of 1,4‑Disubstituted 1,2,3‑Triazoles via Cu-catalyzed Azide–Alkyne Cycloaddition Reactions in Water. Catal Letters 2022. [DOI: 10.1007/s10562-021-03898-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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4
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Lengvinaitė D, Kvedaraviciute S, Bielskutė S, Klimavicius V, Balevicius V, Mocci F, Laaksonen A, Aidas K. Structural Features of the [C4mim][Cl] Ionic Liquid and Its Mixtures with Water: Insight from a 1H NMR Experimental and QM/MD Study. J Phys Chem B 2021; 125:13255-13266. [PMID: 34806880 PMCID: PMC8667039 DOI: 10.1021/acs.jpcb.1c08215] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/09/2021] [Indexed: 01/05/2023]
Abstract
The 1H NMR chemical shift of water exhibits non-monotonic dependence on the composition of an aqueous mixture of 1-butyl-3-methylimidazolium chloride, [C4mim][Cl], ionic liquid (IL). A clear minimum is observed for the 1H NMR chemical shift at a molar fraction of the IL of 0.34. To scrutinize the molecular mechanism behind this phenomenon, extensive classical molecular dynamics simulations of [C4mim][Cl] IL and its mixtures with water were carried out. A combined quantum mechanics/molecular mechanics approach based on the density functional theory was applied to predict the NMR chemical shifts. The proliferation of strongly hydrogen-bonded complexes between chloride anions and water molecules is found to be the reason behind the increasing 1H NMR chemical shift of water when its molar fraction in the mixture is low and decreasing. The model shows that the chemical shift of water molecules that are trapped in the IL matrix without direct hydrogen bonding to the anions is considerably smaller than the 1H NMR chemical shift predicted for the neat water. The structural features of neat IL and its mixtures with water have also been analyzed in relation to their NMR properties. The 1H NMR spectrum of neat [C4mim][Cl] was predicted and found to be in very reasonable agreement with the experimental data. Finally, the experimentally observed strong dependence of the chemical shift of the proton at position 2 in the imidazolium ring on the composition of the mixture was rationalized.
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Affiliation(s)
- Dovilė Lengvinaitė
- Institute
of Chemical Physics, Faculty of Physics, Vilnius University, Vilnius LT-10257, Lithuania
| | | | - Stasė Bielskutė
- Institute
of Chemical Physics, Faculty of Physics, Vilnius University, Vilnius LT-10257, Lithuania
| | - Vytautas Klimavicius
- Institute
of Chemical Physics, Faculty of Physics, Vilnius University, Vilnius LT-10257, Lithuania
| | - Vytautas Balevicius
- Institute
of Chemical Physics, Faculty of Physics, Vilnius University, Vilnius LT-10257, Lithuania
| | - Francesca Mocci
- Università
di Cagliari, Dipartimento di Scienze Chimiche e Geologiche, Cittadella
Universitaria di Monserrato, Cagliari I-09042, Monserrato, Italy
| | - Aatto Laaksonen
- Energy Engineering,
Division of Energy Science, Luleå
University of Technology, Luleå 97181, Sweden
- Division
of Physical Chemistry, Department of Materials and Environmental Chemistry,
Arrhenius Laboratory, Stockholm University, Stockholm 10691, Sweden
- Center of
Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular
Chemistry, Iasi 700469, Romania
- State
Key Laboratory of Materials-Oriented and Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Kęstutis Aidas
- Institute
of Chemical Physics, Faculty of Physics, Vilnius University, Vilnius LT-10257, Lithuania
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Bello TO, Bresciani AE, Oller Nascimento CA, Brito Alves RM. Systematic Screening of Ionic Liquids for the Hydrogenation of Carbon Dioxide to Formic Acid and Methanol. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02910] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Taofeeq O. Bello
- Escola Politécnica, Universidade de São Paulo, São Paulo, São Paulo 05508-010, Brazil
| | - Antonio E. Bresciani
- Escola Politécnica, Universidade de São Paulo, São Paulo, São Paulo 05508-010, Brazil
| | | | - Rita M. Brito Alves
- Escola Politécnica, Universidade de São Paulo, São Paulo, São Paulo 05508-010, Brazil
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A novel sublimable organic salt: Synthesis, characterization, thermal behavior, and catalytic activity for the synthesis of arylidene, heteroarylidene, and alkylidene malonates. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04587-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Zhang S, Nishi N, Katakura S, Sakka T. Evaluation of static differential capacitance at the [C 4mim +][TFSA -]/electrode interface using molecular dynamics simulation combined with electrochemical surface plasmon resonance measurements. Phys Chem Chem Phys 2021; 23:13905-13917. [PMID: 34132289 DOI: 10.1039/d1cp01435h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Molecular dynamic (MD) simulations have been performed for 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide ([C4mim+][TFSA-]), an ionic liquid (IL), on a charged graphene electrode to achieve the quantitative analysis of the static differential capacitance using the electrochemical surface plasmon resonance (ESPR). The MD simulations have provided the surface charge density on the electrode and ionic distributions in the electric double layer, both of which are indispensable for the evaluation of static differential capacitance using ESPR but are difficult to be measured by experimental techniques. This approach has allowed the quantitative analysis and explanation of the SPR angle shift in ESPR. The major contribution to the SPR angle shift is found to be the change in ionic concentrations of the first ionic layer on the electrode, owing to higher polarizabilities of ions in the first ionic layer than those in the overlayers. Moreover, the ionic orientation on the electrode and ionic multilayer structure have also been investigated in detail. The butyl group of C4mim+ in the first ionic layer is found to provide extra room for C4mim+ in the second ionic layer but exclude TFSA-, which affects the interval and regularity of ionic multilayers.
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Affiliation(s)
- Shiwei Zhang
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.
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9
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Mishra DK, Banerjee B, Pugazhenthi G, Banerjee T. Metal-Free, Ionic Liquid-Mediated Hydrogen Release from Amine Borane Complexes: An Experimental and Density Functional Theory Investigation. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01507] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dhirendra Kumar Mishra
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Basudhrity Banerjee
- Research & Development Centre, Gegadyne Energy, Andheri East, Mumbai, Maharashtra 400059, India
| | - Gopal Pugazhenthi
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Tamal Banerjee
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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Li Wei, Wang S, Men S. Electronic Effects in the Structure of 1-Ethyl-3-Methylimidazolium Ionic Liquids. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2021. [DOI: 10.1134/s0036024421040270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Araújo JR, de Andrade RB, Batista HJ, Ventura E, do Monte SA. Can a gas phase contact ion pair containing a hydrocarbon carbocation be formed in the ground state? RSC Adv 2021; 11:4221-4230. [PMID: 35424376 PMCID: PMC8694316 DOI: 10.1039/d0ra10523f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/11/2021] [Indexed: 11/21/2022] Open
Abstract
So far, no conclusive evidence of a ground-state contact ion-pair containing a hydrocarbon carbocation has been given in the gas phase.
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Affiliation(s)
- José R. Araújo
- Departamento de Química
- CCEN
- Universidade Federal da Paraíba
- João Pessoa
- Brazil
| | | | - Hélcio J. Batista
- Departamento de Química
- Universidade Federal Rural de Pernambuco
- Recife
- Brazil
| | - Elizete Ventura
- Departamento de Química
- CCEN
- Universidade Federal da Paraíba
- João Pessoa
- Brazil
| | - Silmar A. do Monte
- Departamento de Química
- CCEN
- Universidade Federal da Paraíba
- João Pessoa
- Brazil
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12
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Yan He, Shuang Men. Charge Distribution of Phosphonium Ionic Liquids: Phosphonium versus Phosphate. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2020. [DOI: 10.1134/s0036024420100131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Men S, Licence P, Luo H, Dai S. Tuning the Cation-Anion Interactions by Methylation of the Pyridinium Cation: An X-ray Photoelectron Spectroscopy Study of Picolinium Ionic Liquids. J Phys Chem B 2020; 124:6657-6663. [PMID: 32639150 DOI: 10.1021/acs.jpcb.0c05872] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
X-ray photoelectron spectroscopy is used to investigate the impact of methylation on the electronic environment of pyridinium cations. Because of the electron-donating effect of the methyl group, there is a significant increase in electron density on the cationic nitrogen. The shift of the N 1s binding energy is inversely proportional to the anion basicity. The methylation position on the electronic environment of the cationic nitrogen is investigated. The N 1s binding energy follows the trend: 1-octylpyridinium > 1-octyl-3-picolinium > 1-octyl-4-picolinium > 1-octyl-2-picolinium, which is in good agreement with the cation acidity. The increase in the inductive effect subsequently weakens the cation-anion interactions through charge transfer from the anion to the cation, causing a subtle change in the electronic environment of the anion. Such an effect is noticeably reflected in the Br 3d binding energy. It shows that the Br 3d5/2 binding energy of 1-octyl-2-picolinium bromide is 0.2 eV lower than that of 1-octylpyridinium bromide.
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Affiliation(s)
- Shuang Men
- School of Material Science and Engineering, Shenyang Ligong University, Shenyang 110159, P. R. China.,Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Peter Licence
- School of Chemistry, The University of Nottingham, Nottingham NG7 2RD, U.K
| | - Huimin Luo
- Energy and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
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Men S, Licence P, Do-Thanh CL, Luo H, Dai S. X-ray photoelectron spectroscopy of piperidinium ionic liquids: a comparison to the charge delocalised pyridinium analogues. Phys Chem Chem Phys 2020; 22:11976-11983. [PMID: 32420557 DOI: 10.1039/d0cp01454k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, nine piperidinium-based ionic liquids are analysed by X-ray photoelectron spectroscopy. The effect of alkyl substituent length and the nature of the anion on the electronic environment of the cation are investigated. The electronic environment of the hetero carbon and the cationic nitrogen is compared between two structurally similar cations, 1-octyl-1-methylpiperidinium ([C8C1Pip]+) versus 1-octylpyridinium ([C8Py]+). Due to the charge delocalisation, the hetero carbon component within [C8Py]+ is more positively charged, which exhibits much higher binding energy; whilst the cationic nitrogen component is in the similar electronic environment. The impact of the charge delocalisation on the electronic environment of the anion is also compared between [C8C1Pip]+ and [C8Py]+. It is found that for the more basic anion, the cation can significantly affect the electronic environment of the anion; for the less basic anion, such an effect concentrates on the component bearing more negative point charges.
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Affiliation(s)
- Shuang Men
- School of Material Science and Engineering, Shenyang Ligong University, Shenyang, 110159, P. R. China. and Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, 37830, USA.
| | - Peter Licence
- School of Chemistry, The University of Nottingham, Nottingham, NG7 2RD, UK
| | - Chi-Linh Do-Thanh
- Department of Chemistry, Joint Institute of Advanced Materials, University of Tennessee, Knoxville, 37996, USA
| | - Huimin Luo
- Energy and Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, 37830, USA
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, 37830, USA.
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Rui Mu, Deng A, Men S. Tribromide Ionic Liquids: Probing the Charge Distribution of the Anion by XPS. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2020. [DOI: 10.1134/s0036024420050167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Li Wei, Shuang Men. X-ray Photoelectron Spectroscopy of 1-Butyl-2,3-Dimethylimidazolium Ionic Liquids: Charge Correction Methods and Electronic Environment of the Anion. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2020. [DOI: 10.1134/s0036024419130326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Men S, Jin Y, Licence P. Probing the impact of the N3-substituted alkyl chain on the electronic environment of the cation and the anion for 1,3-dialkylimidazolium ionic liquids. Phys Chem Chem Phys 2020; 22:17394-17400. [DOI: 10.1039/d0cp02325f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
XPS is used to probe the impact of the N3-substituted alkyl chain on the electronic environment of the cation and the anion by comparing two types of imidazolium cations, 1-alkyl-3-butylimidazolium and 1-alkyl-3-methylimidazolium.
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Affiliation(s)
- Shuang Men
- School of Material Science and Engineering
- Shenyang Ligong University
- Shenyang
- P. R. China
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics
| | - Yujuan Jin
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics
- Beijing Technology and Business University
- Beijing
- P. R. China
| | - Peter Licence
- School of Chemistry
- The University of Nottingham Nottingham
- UK
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Kuusik I, Kook M, Pärna R, Kivimäki A, Käämbre T, Reisberg L, Kikas A, Kisand V. The electronic structure of ionic liquids based on the TFSI anion: A gas phase UPS and DFT study. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Liu Y, Chen X, Men S, Licence P, Xi F, Ren Z, Zhu W. The impact of cation acidity and alkyl substituents on the cation–anion interactions of 1-alkyl-2,3-dimethylimidazolium ionic liquids. Phys Chem Chem Phys 2019; 21:11058-11065. [DOI: 10.1039/c9cp01381d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
XPS is used to probe the cation–anion interactions in 1-alkyl-2,3-dimethylimidazolium ionic liquids.
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Affiliation(s)
- Yanhui Liu
- School of Material Science and Engineering
- Shenyang Ligong University
- Shenyang
- P. R. China
| | - Xianze Chen
- School of Material Science and Engineering
- Shenyang Ligong University
- Shenyang
- P. R. China
| | - Shuang Men
- School of Material Science and Engineering
- Shenyang Ligong University
- Shenyang
- P. R. China
| | - Peter Licence
- School of Chemistry
- The University of Nottingham
- Nottingham
- UK
| | - Feng Xi
- School of Material Science and Engineering
- Shenyang Ligong University
- Shenyang
- P. R. China
| | - Zhen Ren
- School of Material Science and Engineering
- Shenyang Ligong University
- Shenyang
- P. R. China
| | - Weiwei Zhu
- School of Material Science and Engineering
- Shenyang Ligong University
- Shenyang
- P. R. China
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Shuang Men, Yujuan Jin. Rhodium Catalyst–Ionic Liquids Interaction by X-ray Photoelectron Spectroscopy Data. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2018. [DOI: 10.1134/s0036024418120361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Zanatta M, Simon NM, Dos Santos FP, Corvo MC, Cabrita EJ, Dupont J. Correspondence on "Preorganization and Cooperation for Highly Efficient and Reversible Capture of Low-Concentration CO 2 by Ionic Liquids". Angew Chem Int Ed Engl 2018; 58:382-385. [PMID: 30537375 DOI: 10.1002/anie.201712252] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Indexed: 11/10/2022]
Abstract
The preorganization and cooperation mechanism of imide-based ionic liquids reported in a recent Communication was evocated to rationalize the extremely high gravimetric CO2 capture displayed by these fluids. An analysis of the reported spectroscopic evidences together with additional experiments led to the proposition of an alternative, simpler, and feasible mechanism involving the formation of bicarbonate.
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Affiliation(s)
- Marcileia Zanatta
- Institute of Chemistry-, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, 91501-970, RS, Brazil
| | - Nathalia M Simon
- Institute of Chemistry-, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, 91501-970, RS, Brazil
| | - Francisco P Dos Santos
- Institute of Chemistry-, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, 91501-970, RS, Brazil
| | - Marta C Corvo
- I3NCENIMAT, Dep. Ciência dos Materiais, Fac. Ciências e Tecnologia, UNL, 2829-516, Caparica, Portugal
| | - Eurico J Cabrita
- UCIBIO-REQUIMTE, Dep. Quimica, Fac. Ciências e Tecnologia, UNL, 2829-516, Caparica, Portugal
| | - Jairton Dupont
- Institute of Chemistry-, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, 91501-970, RS, Brazil
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22
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Correspondence on “Preorganization and Cooperation for Highly Efficient and Reversible Capture of Low‐Concentration CO
2
by Ionic Liquids”. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Shuang Men, Yujuan Jin. X-ray Photoelectron Spectroscopy of Imidazolium-Based Zwitterions: The Intramolecular Charge-Transfer Effect. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2018. [DOI: 10.1134/s0036024418110389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shuang Men, Rong J, Zhang T, Wang X, Feng L, Liu C, Jin Y. Spectroscopic Analysis of 1-Butyl-3-methylimidazolium Ionic Liquids: Selection of the Charge Reference and the Electronic Environment. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2018. [DOI: 10.1134/s0036024418100308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shuang Men, Jing Jiang. Probing the Formation of the NHC-Palladium Species in Ionic Liquids by X-ray Photoelectron Spectroscopy. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2018. [DOI: 10.1134/s0036024418080265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Men S, Jiang X, Xiang X, Sun G, Yan Y, Lyu Z, Jin Y. Synthesis of Cellulose Long-Chain Esters in 1-Butyl-3-methylimidazolium Acetate: Structure-Property Relations. POLYMER SCIENCE SERIES B 2018. [DOI: 10.1134/s1560090418030144] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Clarke CJ, Puttick S, Sanderson TJ, Taylor AW, Bourne RA, Lovelock KRJ, Licence P. Thermal stability of dialkylimidazolium tetrafluoroborate and hexafluorophosphate ionic liquids: ex situ bulk heating to complement in situ mass spectrometry. Phys Chem Chem Phys 2018; 20:16786-16800. [PMID: 29888367 DOI: 10.1039/c8cp01090k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Thermal decomposition (TD) products of the ionic liquids (ILs) [CnC1Im][BF4] and [CnC1Im][PF6] ([CnC1Im]+ = 1-alkyl-3-methylimidazolium, [BF4]- = tetrafluoroborate, and [PF6]- = hexafluorophosphate) were prepared, ex situ, by bulk heating experiments in a bespoke setup. The respective products, CnC1(C3N2H2)BF3 and CnC1(C3N2H2)PF5 (1-alkyl-3-methylimidazolium-2-trifluoroborate and 1-alkyl-3-methylimidazolium-2-pentafluorophosphate), were then vaporized and analyzed by direct insertion mass spectrometry (DIMS) in order to identify their characteristic MS signals. During IL DIMS experiments we were subsequently able, in situ, to identify and monitor signals due to both IL vaporization and IL thermal decomposition. These decomposition products have not been observed in situ during previous analytical vaporization studies of similar ILs. The ex situ preparation of TD products is therefore perfectly complimentary to in situ thermal stability measurements. Experimental parameters such as sample surface area to volume ratios are consequently very important for ILs that show competitive vaporization and thermal decomposition. We have explained these experimental factors in terms of Langmuir evaporation and Knudsen effusion-like conditions, allowing us to draw together observations from previous studies to make sense of the literature on IL thermal stability. Hence, the design of experimental setups are crucial and previously overlooked experimental factors.
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Affiliation(s)
- Coby J Clarke
- School of Chemistry, The University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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28
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Men S, Liu Y, Jin Y. Probing the Cellulose-Ionic Liquids Interaction by X-ray Photoelectron Spectroscopy. POLYMER SCIENCE SERIES A 2018. [DOI: 10.1134/s0965545x18030124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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29
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Buckley M, Syres KL, Jones RG. Interactions and stabilisation of acetone, sulfur dioxide and water with 1-octyl-3-methylimidazolium tetrafluoroborate [OMIM][BF 4] at low temperatures. Faraday Discuss 2018; 206:475-495. [PMID: 28929162 DOI: 10.1039/c7fd00146k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interactions between three small molecules, water (H2O), sulfur dioxide (SO2) and acetone ((CH3)2CO), with the ionic liquid (IL) 1-octyl-3-methylimidazolium tetrafluoroborate, [OMIM][BF4], have been determined using line of sight temperature programmed desorption (LOSTPD) from a gold surface. Multilayers of the IL were deposited by physical vapour deposition with multilayers of the small molecular species (adsorbed from the gas phase) at 90 K. LOSTPD was then carried out with the small molecular species desorbing first from the mixed multilayer, followed at higher temperatures by desorption of the IL from the gold surface. The IL had a high activation energy for desorption of 126(6) kJ mol-1. Pure acetone showed a desorption activation energy of 38(2) kJ mol-1, which increased to 45-61 kJ mol-1 when it was pre-adsorbed below an overlying porous layer of the ionic liquid at 90 K. The stabilised acetone is thought to be associated with pores containing ionic moieties. Destabilised acetone was also observed and thought to originate from pores containing octyl chains. The quantity of stabilised acetone scaled with the amount of IL, being ≈1.1 molecules per IL ion pair. SO2 and H2O were co-adsorbed with the IL at 90 K leading to an intimate mixture of the two. For pure SO2 the desorption energy was 32(2) kJ mol-1, which increased to 40-52 kJ mol-1 for relative concentrations up to 6 SO2 molecules per IL ion pair. For pure water the activation energies were 49(5) kJ mol-1 and 43(1) kJ mol-1 for amorphous and crystalline ice respectively. When co-adsorbed with the IL the stabilisation energies were 42-49 kJ mol-1, but up to 505 water molecules per IL ion pair could be stabilised to some degree. The desorption mechanisms and the reasons for these interactions are discussed.
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Affiliation(s)
- Matthew Buckley
- Department of Physical Chemistry, School of Chemistry, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Karen L Syres
- Department of Physical Chemistry, School of Chemistry, University of Nottingham, Nottingham NG7 2RD, UK.
| | - Robert G Jones
- Department of Physical Chemistry, School of Chemistry, University of Nottingham, Nottingham NG7 2RD, UK.
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Lovelock KRJ. Quantifying intermolecular interactions of ionic liquids using cohesive energy densities. ROYAL SOCIETY OPEN SCIENCE 2017; 4:171223. [PMID: 29308254 PMCID: PMC5750021 DOI: 10.1098/rsos.171223] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 10/30/2017] [Indexed: 05/25/2023]
Abstract
For ionic liquids (ILs), both the large number of possible cation + anion combinations and their ionic nature provide a unique challenge for understanding intermolecular interactions. Cohesive energy density, ced, is used to quantify the strength of intermolecular interactions for molecular liquids, and is determined using the enthalpy of vaporization. A critical analysis of the experimental challenges and data to obtain ced for ILs is provided. For ILs there are two methods to judge the strength of intermolecular interactions, due to the presence of multiple constituents in the vapour phase of ILs. Firstly, cedIP, where the ionic vapour constituent is neutral ion pairs, the major constituent of the IL vapour. Secondly, cedC+A, where the ionic vapour constituents are isolated ions. A cedIP dataset is presented for 64 ILs. For the first time an experimental cedC+A, a measure of the strength of the total intermolecular interaction for an IL, is presented. cedC+A is significantly larger for ILs than ced for most molecular liquids, reflecting the need to break all of the relatively strong electrostatic interactions present in ILs. However, the van der Waals interactions contribute significantly to IL volatility due to the very strong electrostatic interaction in the neutral ion pair ionic vapour. An excellent linear correlation is found between cedIP and the inverse of the molecular volume. A good linear correlation is found between IL cedIP and IL Gordon parameter (which are dependent primarily on surface tension). ced values obtained through indirect methods gave similar magnitude values to cedIP. These findings show that cedIP is very important for understanding IL intermolecular interactions, in spite of cedIP not being a measure of the total intermolecular interactions of an IL. In the outlook section, remaining challenges for understanding IL intermolecular interactions are outlined.
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31
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Alkyl-imidazolium tetrafluoroborates: Vapor pressure, thermodynamics of vaporization, and enthalpies of formation. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.07.094] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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32
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X-ray photoelectron spectroscopy of trihalide ionic liquids: Comparison to halide-based analogues, anion basicity and beam damage. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.05.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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33
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Men S, Jiang J, Licence P. Spectroscopic analysis of 1-butyl-2,3-dimethylimidazolium ionic liquids: Cation-anion interactions. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.02.050] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chatel G, Naffrechoux E, Draye M. Avoid the PCB mistakes: A more sustainable future for ionic liquids. JOURNAL OF HAZARDOUS MATERIALS 2017; 324:773-780. [PMID: 27899239 DOI: 10.1016/j.jhazmat.2016.11.060] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 11/03/2016] [Accepted: 11/21/2016] [Indexed: 06/06/2023]
Abstract
Based on our original knowledge and experience on both polychlorinated biphenyls (PCBs) identification in aquatic ecosystems, and use of ionic liquids (ILs) as solvents and/or co-catalysts in green chemistry, we drawn a dared comparison between these two families. Indeed, PCBs has been used during several decades for their new properties, but are now considered as prevalent and persistent pollutants; some toxic effects on environment or human are still revealed. ILs, often designated as "green solvents" are increasingly used in numerous applications, but few studies reported about their environmental impact are still controversial. Through a parallel between properties and applications of PCBs and ILs, we wondered if history could not repeat itself, and how to provide a better future for ILs. Here, we provide some interesting comparisons and we discuss which tracks it could be important to follow for ILs applications in order to avoid the errors done with PCBs.
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Affiliation(s)
- Gregory Chatel
- Université Savoie Mont Blanc, Laboratoire de Chimie Moléculaire et Environnement (LCME), Campus de Savoie Technolac, 73376 Le Bourget-du-Lac Cedex, France
| | - Emmanuel Naffrechoux
- Université Savoie Mont Blanc, Laboratoire de Chimie Moléculaire et Environnement (LCME), Campus de Savoie Technolac, 73376 Le Bourget-du-Lac Cedex, France
| | - Micheline Draye
- Université Savoie Mont Blanc, Laboratoire de Chimie Moléculaire et Environnement (LCME), Campus de Savoie Technolac, 73376 Le Bourget-du-Lac Cedex, France.
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Cao B, Du J, Cao Z, Sun H, Sun X, Fu H. Reversibility of imido-based ionic liquids: a theoretical and experimental study. RSC Adv 2017. [DOI: 10.1039/c7ra00008a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Theoretical and experimental methods were used to study the reversibility of a series of imido-based ionic liquids.
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Affiliation(s)
- Bobo Cao
- Chemistry and Chemical Engineering College
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Jiuyao Du
- Chemistry and Chemical Engineering College
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Ziping Cao
- Chemistry and Chemical Engineering College
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Haitao Sun
- Chemistry and Chemical Engineering College
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Xuejun Sun
- Chemistry and Chemical Engineering College
- Qufu Normal University
- Qufu 273165
- P. R. China
| | - Hui Fu
- State Key Laboratory of Heavy Oil Processing
- College of Science
- China University of Petroleum
- Qingdao 266580
- P. R. China
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36
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Fogarty RM, Matthews RP, Clough MT, Ashworth CR, Brandt-Talbot A, Corbett PJ, Palgrave RG, Bourne RA, Chamberlain TW, Vander Hoogerstraete T, Thompson PBJ, Hunt PA, Besley NA, Lovelock KRJ. NEXAFS spectroscopy of ionic liquids: experiments versus calculations. Phys Chem Chem Phys 2017; 19:31156-31167. [DOI: 10.1039/c7cp07143d] [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
Experimental N 1s and S 1s NEXAFS spectra are compared to TD-DFT calculated spectra for 12 ionic liquids.
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Affiliation(s)
| | | | | | | | | | - Paul J. Corbett
- Department of Chemical Engineering, Imperial College London
- UK
| | | | - Richard A. Bourne
- School of Chemical and Process Engineering
- University of Leeds
- UK
- Institute of Process Research and Development
- School of Chemistry
| | - Thomas W. Chamberlain
- Institute of Process Research and Development
- School of Chemistry
- University of Leeds
- UK
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37
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Kuusik I, Tarkanovskaja M, Kruusma J, Kisand V, Tõnisoo A, Lust E, Nõmmiste E. Valence band photoelectron spectra of [EMIM][BF 4 ] ionic liquid vapor: Evidences of electronic relaxation. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.08.114] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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39
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Men S, Jiang J. X-ray photoelectron spectroscopy as a probe of the interaction between rhodium acetate and ionic liquids. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.01.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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Men S, Mitchell DS, Lovelock KRJ, Licence P. X-ray Photoelectron Spectroscopy of Pyridinium-Based Ionic Liquids: Comparison to Imidazolium- and Pyrrolidinium-Based Analogues. Chemphyschem 2015; 16:2211-8. [PMID: 25952131 PMCID: PMC4768647 DOI: 10.1002/cphc.201500227] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Indexed: 11/08/2022]
Abstract
We investigate eight 1-alkylpyridinium-based ionic liquids of the form [Cn Py][A] by using X-ray photoelectron spectroscopy (XPS). The electronic environment of each element of the ionic liquids is analyzed. In particular, a reliable fitting model is developed for the C 1s region that applies to each of the ionic liquids. This model allows the accurate charge correction of binding energies and the determination of reliable and reproducible binding energies for each ionic liquid. Shake-up/off phenomena are determinedfor both C 1s and N 1s spectra. The electronic interaction between cations and anions is investigated for both simple ionic liquids and an example of an ionic-liquid mixture; the effect of the anion on the electronic environment of the cation is also explored. Throughout the study, a detailed comparison is made between [C8 Py][A] and analogues including 1-octyl-1-methylpyrrolidinium- ([C8 C1 Pyrr][A]), and 1-octyl-3-methylimidazolium- ([C8 C1 Im][A]) based samples, where X is common to all ionic liquids.
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Affiliation(s)
- Shuang Men
- School of Material Science and Engineering, Shenyang Ligong University, Shenyang 110168 (P. R. China).
- School of Chemistry, The University of Nottingham, Nottingham NG7 2RD (UK).
| | - Daniel S Mitchell
- School of Chemistry, The University of Nottingham, Nottingham NG7 2RD (UK)
| | | | - Peter Licence
- School of Chemistry, The University of Nottingham, Nottingham NG7 2RD (UK).
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41
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Köckerling M, Peppel T, Thiele P, Verevkin SP, Emel'yanenko VN, Samarov AA, Ruth W. Easily Vaporizable Ionic Liquids – No Contradiction! Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500391] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Martin Köckerling
- Institut für Chemie, Anorganische Festkörperchemie, Universität Rostock, Albert‐Einstein Str. 3a, 18059 Rostock, Germany, http://www.koeckerling.chemie.uni‐rostock.de/
| | - Tim Peppel
- Leibniz Institut für Katalyse e.V. an der Universität Rostock, Anorganische Funktionsmaterialien, Albert‐Einstein‐Str. 29a, 18059 Rostock, Germany
| | - Philipp Thiele
- Institut für Chemie, Anorganische Festkörperchemie, Universität Rostock, Albert‐Einstein Str. 3a, 18059 Rostock, Germany, http://www.koeckerling.chemie.uni‐rostock.de/
| | - Sergey P. Verevkin
- Institut für Chemie, Physikalische Chemie, Universität Rostock, Dr.‐Lorenz‐Weg 1, 18059 Rostock, Germany
| | - Vladimir N. Emel'yanenko
- Department of Physical Chemistry, Kazan Federal University, Kremleskaya Str. 18, 420008 Kazan, Russia
| | - Artemiy A. Samarov
- Department of Chemical Thermodynamics and Kinetics, St. Petersburg State University, Universitetskiy Prospect 26‐Peterhof, 198504 Saint‐Petersburg, Russia
| | - Wolfgang Ruth
- Institut für Chemie, Technische Chemie, Universität Rostock, Albert‐Einstein Str. 3a, 18059 Rostock, Germany
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42
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Patil JD, Patil SA, Pore DM. A polymer supported ascorbate functionalized task specific ionic liquid: an efficient reusable catalyst for 1,3-dipolar cycloaddition. RSC Adv 2015. [DOI: 10.1039/c4ra16481d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In situ coalescence of copper on polymer supported ascorbate functionalized task specific ionic liquid, acts as an efficient catalyst for Huisgen 1,3 dipolar cycloaddition.
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43
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Finger LH, Wohde F, Grigoryev EI, Hansmann AK, Berger R, Roling B, Sundermeyer J. Access to pure and highly volatile hydrochalcogenide ionic liquids. Chem Commun (Camb) 2015; 51:16169-72. [DOI: 10.1039/c5cc06224a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of H2S with methylcarbonate salts allows access to pure hydrosulphide ILs, which show an astoundingly high volatility below 100 °C allowing high-end purification and ionic single crystal growth by sublimation.
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Affiliation(s)
- L. H. Finger
- Fachbereich Chemie and Materials Science Center
- Philipps-Universität
- 35043 Marburg
- Germany
| | - F. Wohde
- Fachbereich Chemie and Materials Science Center
- Philipps-Universität
- 35043 Marburg
- Germany
| | - E. I. Grigoryev
- Fachbereich Chemie and Materials Science Center
- Philipps-Universität
- 35043 Marburg
- Germany
| | - A.-K. Hansmann
- Fachbereich Chemie and Materials Science Center
- Philipps-Universität
- 35043 Marburg
- Germany
| | - R. Berger
- Fachbereich Chemie and Materials Science Center
- Philipps-Universität
- 35043 Marburg
- Germany
| | - B. Roling
- Fachbereich Chemie and Materials Science Center
- Philipps-Universität
- 35043 Marburg
- Germany
| | - J. Sundermeyer
- Fachbereich Chemie and Materials Science Center
- Philipps-Universität
- 35043 Marburg
- Germany
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44
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Men S, Lovelock KRJ, Licence P. Directly probing the effect of the solvent on a catalyst electronic environment using X-ray photoelectron spectroscopy. RSC Adv 2015. [DOI: 10.1039/c5ra04662a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The anion of an ionic liquid can significantly influence the electronic environment of a metal centre, and thus impact upon reaction performance in a model Suzuki cross coupling reaction.
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Affiliation(s)
- Shuang Men
- Shenyang Ligong University
- School of Material Science and Engineering
- Shenyang
- China
- The University of Nottingham
| | | | - Peter Licence
- The University of Nottingham
- School of Chemistry
- Nottingham
- United Kingdom
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45
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Kuusik I, Tarkanovskaja M, Kruusma J, Reedo V, Välbe R, Lõhmus A, Kisand V, Lust E, Kukk E, Nõmmiste E. Near threshold photodissociation study of EMIMBF4 vapor. RSC Adv 2015. [DOI: 10.1039/c4ra12775g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Photodissociation of the [EMIM][BF4] ionic liquid vapors following excitation with light in the vacuum ultraviolet region was studied at different liquid temperatures.
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Affiliation(s)
- I. Kuusik
- Institute of Physics
- University of Tartu
- 50411 Tartu
- Estonia
| | | | - J. Kruusma
- Institute of Chemistry
- University of Tartu
- 50411 Tartu
- Estonia
| | - V. Reedo
- Institute of Physics
- University of Tartu
- 50411 Tartu
- Estonia
| | - R. Välbe
- Institute of Physics
- University of Tartu
- 50411 Tartu
- Estonia
| | - A. Lõhmus
- Institute of Physics
- University of Tartu
- 50411 Tartu
- Estonia
| | - V. Kisand
- Institute of Physics
- University of Tartu
- 50411 Tartu
- Estonia
| | - E. Lust
- Institute of Chemistry
- University of Tartu
- 50411 Tartu
- Estonia
| | - E. Kukk
- Dept. of Physics and Astronomy
- University of Turku
- FIN-20014 Turku
- Finland
| | - E. Nõmmiste
- Institute of Physics
- University of Tartu
- 50411 Tartu
- Estonia
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46
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Tong J, Yang HX, Liu RJ, Li C, Xia LX, Yang JZ. Determination of the Enthalpy of Vaporization and Prediction of Surface Tension for Ionic Liquid 1-Alkyl-3-methylimidazolium Propionate [Cnmim][Pro](n = 4, 5, 6). J Phys Chem B 2014; 118:12972-8. [DOI: 10.1021/jp509240w] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Tong
- College
of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Hong-Xu Yang
- College
of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Ru-Jing Liu
- College
of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Chi Li
- College
of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Li-Xin Xia
- College
of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Jia-Zhen Yang
- College
of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
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47
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Clough MT, Crick CR, Gräsvik J, Hunt PA, Niedermeyer H, Welton T, Whitaker OP. A physicochemical investigation of ionic liquid mixtures. Chem Sci 2014; 6:1101-1114. [PMID: 29560198 PMCID: PMC5811077 DOI: 10.1039/c4sc02931c] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 11/05/2014] [Indexed: 12/21/2022] Open
Abstract
Ionic liquids have earned the reputation of being 'designer solvents' due to the wide range of accessible properties and the degree of fine-tuning afforded by varying the constituent ions. Mixtures of ionic liquids offer the opportunity for further fine-tuning of properties. A broad selection of common ionic liquid cations and anions are employed to create a sample of binary and reciprocal binary ionic liquid mixtures, which are analysed and described in this paper. Physical properties such as the conductivity, viscosity, density and phase behaviour (glass transition temperatures) are examined. In addition, thermal stabilities of the mixtures are evaluated. The physical properties examined for these formulations are found to generally adhere remarkably closely to ideal mixing laws, with a few consistent exceptions, allowing for the facile prediction and control of properties of ionic liquid mixtures.
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Affiliation(s)
- Matthew T Clough
- Department of Chemistry , Imperial College London , London , SW7 2AZ , UK . ;
| | - Colin R Crick
- Department of Chemistry , Imperial College London , London , SW7 2AZ , UK . ;
| | - John Gräsvik
- Department of Chemistry , Imperial College London , London , SW7 2AZ , UK . ;
| | - Patricia A Hunt
- Department of Chemistry , Imperial College London , London , SW7 2AZ , UK . ;
| | - Heiko Niedermeyer
- Department of Chemistry , Imperial College London , London , SW7 2AZ , UK . ;
| | - Tom Welton
- Department of Chemistry , Imperial College London , London , SW7 2AZ , UK . ;
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48
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Affiliation(s)
- Maxim V Fedorov
- Department of Physics, Scottish University Physics Alliance (SUPA), University of Strathclyde , John Anderson Bldg, 107 Rottenrow, Glasgow, G4 0NG United Kingdom
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49
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Lovelock KRJ, Armstrong JP, Licence P, Jones RG. Vaporisation and thermal decomposition of dialkylimidazolium halide ion ionic liquids. Phys Chem Chem Phys 2014; 16:1339-53. [DOI: 10.1039/c3cp52950a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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50
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Chen ZJ, Xi HW, Lim KH, Lee JM. Distillable Ionic Liquids: Reversible Amide O Alkylation. Angew Chem Int Ed Engl 2013; 52:13392-6. [DOI: 10.1002/anie.201306476] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Indexed: 11/07/2022]
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