1
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Aysin RR, Galkin KI. Adaptive carbonyl umpolung involving a carbanionic carbene Breslow intermediate: an alternative mechanism for NHC-mediated organocatalysis. Org Biomol Chem 2023; 21:8702-8707. [PMID: 37867444 DOI: 10.1039/d3ob01195j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
Herein, we propose a novel mechanistic model for NHC-mediated carbonyl umpolung which involves the formation of a carbanionic carbene Breslow intermediate (CCBI). We have demonstrated theoretically that this reactive intermediate can be formed by inserting an aldehyde into the C4-H position of an N-aryl-substituted imidazolium-derived NHC via the generation of an H-bonded ditopic carbanionic NHC (dcNHC). Our DFT study on benzoin condensation has revealed that the mechanism of polarity inversion proceeding through the CCBI may be more energetically favorable than the classical mechanism of umpolung that uses the C2 carbene position in NHC. The potential existence of the CCBI highlights the dynamic and adaptive nature of NHC-mediated organocatalysis, particularly in relation to carbonyl umpolung. This finding also sheds light on new pathways in organocatalytic transformations employing the ambident reactivity of NHC, which may be particularly attractive for reactions involving furanic aldehydes and sterically encumbered N-aryl-substituted carbenes.
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Affiliation(s)
- Rinat R Aysin
- Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova, 28, 119991 Moscow, Russia
| | - Konstantin I Galkin
- Bauman Moscow State Technical University, 2nd Baumanskaya ul., 5/1, 105005 Moscow, Russia.
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, ul. Leninsky Prospekt, 47, 119991, Moscow, Russia
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2
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Chen Y, Yu D, Liu Z, Xue Z, Mu T. Thermal, chemical, electrochemical, radiolytic and biological stability of ionic liquids and deep eutectic solvents. NEW J CHEM 2022. [DOI: 10.1039/d2nj03148e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ionic liquids (ILs) and deep eutectic solvents (DESs) are regarded as two kinds of novel solvents with high tunability and they exist in liquid-state for a wide range of temperature....
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3
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Liu X, O'Harra KE, Bara JE, Turner CH. Solubility Behavior of CO 2 in Ionic Liquids Based on Ionic Polarity Index Analyses. J Phys Chem B 2021; 125:3665-3676. [PMID: 33797921 DOI: 10.1021/acs.jpcb.1c01508] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ionic liquids (ILs) can serve as effective CO2 solvents with an appropriate selection of different anions and cations. However, due to the large library of potential IL compositions, rapid screening methods are needed for characterizing and ranking the expected properties. We have recently proposed the ionic polarity index (IPI) parameter, effectively connecting volume-based approaches and electrostatic potential analyses and providing a single metric that can potentially be used to rapidly screen for desirable IL properties. In this work, the corresponding anion and cation IPIs are used to generate correlations with respect to the CO2 volumetric solubility in ILs. The relationships are generally applicable to groups of ILs within a homologous ion series, and this can be particularly valuable for prescreening different ion pairings for maximizing gas solvation performance.
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Affiliation(s)
- Xiaoyang Liu
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Kathryn E O'Harra
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Jason E Bara
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - C Heath Turner
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, Alabama 35487, United States
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4
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Zhao Y, Dong Y, Guo Y, Huo F, Yan F, He H. Recent progress of green sorbents-based technologies for low concentration CO2 capture. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.11.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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5
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Li F, Mocci F, Zhang X, Ji X, Laaksonen A. Ionic liquids for CO2 electrochemical reduction. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.10.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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Ma J, Wang Y, Yang X, Wang B. Fast Track to Acetate-Based Ionic Liquids: Preparation, Properties and Application in Energy and Petrochemical Fields. Top Curr Chem (Cham) 2021; 379:2. [PMID: 33398607 DOI: 10.1007/s41061-020-00315-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 11/16/2020] [Indexed: 11/25/2022]
Abstract
Acetate-based ionic liquids (AcILs), as a kind of typical carboxylate-based ILs, display excellent structure tunability, non-volatility, good solubility to biomass, and favorable adsorption capacity, etc. These unique characteristics of AcILs make them important candidates for a range of applications in the field of energy and in the petrochemical industry. This paper intends to provide a comprehensive overview of recent advances in AcILs, including pure AcILs, AcIL-based multi-solvents, and AcIL-based composites, etc. Preparation methods, with one- and two-step synthesis, are reviewed. The relationship between properties and temperature is discussed, and some physical and thermodynamic properties of different AcILs are summarized and further calculated. The applications of AcILs in the fields of biomass processing, organic synthesis, separation, electrochemistry, and other fields are reviewed based on their prominent properties. Thereinto, the dual functions of AcILs as solvents and activators for biomass dissolution are discussed, and the roles of AcILs as catalysts and reaction mediums in clean organic synthesis are highlighted. Meanwhile, the reaction mechanisms of AcILs with acid gases are posed by means of molecular simulation and experimental characterization. Moreover, AcILs as electrolytes for zinc batteries, supercapacitors, and electrodeposition are particularly introduced. Finally, the future research challenges and prospects of AcILs are presented.
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Affiliation(s)
- Jing Ma
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin, 300072, China.,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Yutong Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin, 300072, China.,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xueqing Yang
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin, 300072, China.,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Baohe Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin, 300072, China. .,Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin, 300072, China.
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7
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Salvitti C, Chiarotto I, Pepi F, Troiani A. Charge-Tagged N-Heterocyclic Carbenes (NHCs): Revealing the Hidden Side of NHC-Catalysed Reactions through Electrospray Ionization Mass Spectrometry. Chempluschem 2020; 86:209-223. [PMID: 33252194 DOI: 10.1002/cplu.202000656] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 11/16/2020] [Indexed: 01/08/2023]
Abstract
N-heterocyclic carbenes (NHCs) are key intermediates in a variety of chemical reactions. Owing to their transient nature, the interception and characterization of these reactive species have always been challenging. Similarly, the study of reaction mechanisms in which carbenes act as catalysts is still an active research field. This Minireview describes the contribution of electrospray ionization mass spectrometry (ESI-MS) to the detection of charge-tagged NHCs resulting from the insertion of an ionic group into the molecular scaffold. The use of different mass spectrometric techniques, combined with the charge-tagging strategy, allowed clarification of the involvement of NHCs in archetypal reactions and the study of their intrinsic chemistry.
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Affiliation(s)
- Chiara Salvitti
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le Aldo Moro 5, Rome, Italy
| | - Isabella Chiarotto
- Dipartimento di Scienze di Base e Applicate per l'Ingegneria, Sapienza Università di Roma, Via Castro Laurenziano 7, Rome, Italy
| | - Federico Pepi
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le Aldo Moro 5, Rome, Italy
| | - Anna Troiani
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P.le Aldo Moro 5, Rome, Italy
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8
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Liu X, O'Harra KE, Bara JE, Turner CH. Molecular insight into the anion effect and free volume effect of CO 2 solubility in multivalent ionic liquids. Phys Chem Chem Phys 2020; 22:20618-20633. [PMID: 32966430 DOI: 10.1039/d0cp03424j] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
For many years, experimental and theoretical studies have investigated the solubility of CO2 in a variety of ionic liquids (ILs), but the overarching absorption mechanism is still unclear. Currently, two different factors are believed to dominate the absorption performance: (a) the fractional free volume (FFV) accessible for absorption; and (b) the nature of the CO2 interactions with the anion species. The FFV is often more influential than the specific choice of the anion, but neither mechanism provides a complete picture. Herein, we have attempted to decouple these mechanisms in order to provide a more definitive molecular-level perspective of CO2 absorption in IL solvents. We simulate a series of nine different multivalent ILs comprised of imidazolium cations and sulfonate/sulfonimide anions tethered to benzene rings, along with a comprehensive analysis of the CO2 absorption and underlying molecular-level features. We find that the CO2 solubility has a very strong, linear correlation with respect to FFV, but only when comparisons are constrained to a common anion species. The choice of anion results in a fundamental remapping of the correlation between CO2 solubility and FFV. Overall, the free volume effect dominates in the ILs with smaller FFV values, while the choice of anion becomes more important in the systems with larger FFVs. Our proposed mechanistic map is intended to provide a more consistent framework for guiding further IL design for gas absorption applications.
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Affiliation(s)
- Xiaoyang Liu
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Kathryn E O'Harra
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Jason E Bara
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - C Heath Turner
- Department of Chemical and Biological Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA.
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9
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Gehrke S, Hollóczki O. N-Heterocyclic Carbene Organocatalysis: With or Without Carbenes? Chemistry 2020; 26:10140-10151. [PMID: 32608090 PMCID: PMC7496998 DOI: 10.1002/chem.202002656] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 06/26/2020] [Indexed: 11/18/2022]
Abstract
In this work the mechanism of the aldehyde umpolung reactions, catalyzed by azolium cations in the presence of bases, was studied through computational methods. Next to the mechanism established by Breslow in the 1950s that takes effect through the formation of a free carbene, we have suggested that these processes can follow a concerted asynchronous path, in which the azolium cation directly reacts with the substrate, avoiding the formation of the carbene intermediate. We hereby show that substituting the azolium cation, and varying the base or the substrate do not affect the preference for the concerted reaction mechanism. The concerted path was found to exhibit low barriers also for the reactions of thiamine with model substrates, showing that this path might have biological relevance. The dominance of the concerted mechanism can be explained through the specific structure of the key transition state, avoiding the liberation of the highly reactive, and thus unstable carbene lone pair, whereas activating the substrate through hydrogen-bonding interactions. Polar and hydrogen-bonding solvents, as well as the presence of the counterions of the azolium salts facilitate the reaction through carbenes, bringing the barriers of the two reaction mechanisms closer, in many cases making the concerted path less favorable. Thus, our data show that by choosing the exact components in a reaction, the mechanism can be switched to occur with or without carbenes.
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Affiliation(s)
- Sascha Gehrke
- Mulliken Center for Theoretical ChemistryUniversity of BonnBeringstr. 4+653115BonnGermany
| | - Oldamur Hollóczki
- Mulliken Center for Theoretical ChemistryUniversity of BonnBeringstr. 4+653115BonnGermany
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10
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Delaude L. The Chemistry of Azolium‐Carboxylate Zwitterions and Related Compounds: a Survey of the Years 2009–2020. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000639] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Lionel Delaude
- Laboratory of CatalysisMolSys Research UnitInstitut de Chimie Organique (B6a)Université de Liège Allée du six Août 13 4000 Liège Belgium
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11
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Galkin KI, Karlinskii BY, Kostyukovich AY, Gordeev EG, Ananikov VP. Ambident Reactivity of Imidazolium Cations as Evidence of the Dynamic Nature of N-Heterocyclic Carbene-Mediated Organocatalysis. Chemistry 2020; 26:8567-8571. [PMID: 32227612 DOI: 10.1002/chem.201905704] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/27/2020] [Indexed: 11/10/2022]
Abstract
This work reveals ambident nucleophilic reactivity of imidazolium cations towards carbonyl compounds at the C2 or C4 carbene centers depending on the steric properties of the substrates and reaction conditions. Such an adaptive behavior indicates the dynamic nature of organocatalysis proceeding via a covalent interaction of imidazolium carbenes with carbonyl substrates and can be explained by generation of the H-bonded ditopic carbanionic carbenes.
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Affiliation(s)
- Konstantin I Galkin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991, Moscow, Russia
| | - Bogdan Ya Karlinskii
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991, Moscow, Russia
| | - Alexander Yu Kostyukovich
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991, Moscow, Russia
| | - Evgeniy G Gordeev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991, Moscow, Russia
| | - Valentine P Ananikov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991, Moscow, Russia
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12
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Ratschmeier B, Kemna A, Braunschweig B. Role of H
2
O for CO
2
Reduction Reactions at Platinum/Electrolyte Interfaces in Imidazolium Room‐Temperature Ionic Liquids. ChemElectroChem 2020. [DOI: 10.1002/celc.202000316] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Björn Ratschmeier
- Institute of Physical Chemistry Westfälische Wilhelms-Universität Münster Corrensstr. 28/30 48149 Münster Germany
| | - Andre Kemna
- Institute of Physical Chemistry Westfälische Wilhelms-Universität Münster Corrensstr. 28/30 48149 Münster Germany
| | - Björn Braunschweig
- Institute of Physical Chemistry Westfälische Wilhelms-Universität Münster Corrensstr. 28/30 48149 Münster Germany
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13
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Buzsáki D, Kelemen Z, Nyulászi L. Stretching the P-C Bond. Variations on Carbenes and Phosphanes. J Phys Chem A 2020; 124:2660-2671. [PMID: 32159965 PMCID: PMC7307921 DOI: 10.1021/acs.jpca.0c00641] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/10/2020] [Indexed: 11/28/2022]
Abstract
The stability and the structure of adducts formed between four substituted phosphanes (PX3, X:H, F, Cl, and NMe2) and 11 different carbenes have been investigated by DFT calculations. In most cases, the structure of the adducts depends strongly on the stability of the carbene itself, exhibiting a linear correlation with the increasing dissociation energy of the adduct. Carbenes of low stability form phosphorus ylides (F), which can be described as phosphane → carbene adducts supported with some back-bonding. The most stable carbenes, which have high energy lone pair, do not form stable F-type structures but carbene → phosphane adducts (E-type structure), utilizing the low-lying lowest unoccupied molecular orbital (LUMO) of the phosphane (with electronegative substituents), benefiting also from the carbene-pnictogen interaction. Especially noteworthy is the case of PCl3, which has an extremely low energy LUMO in its T-shaped form. Although this PCl3 structure is a transition state of rather high energy, the large stabilization energy of the complex makes this carbene-phosphane adduct stable. Most interestingly, in case of carbenes with medium stability both F- and E-type structures could be optimized, giving rise to bond-stretch isomerism. Likewise, for phosphorus ylides (F), the stability of the adducts G formed from carbenes with hypovalent phosphorus (PX-phosphinidene) is in a linear relationship with the stabilization of the carbene. Adducts of carbenes with hypervalent phosphorus (PX5) are the most stable when X is electronegative, and the carbene is highly nucleophilic.
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Affiliation(s)
- Dániel Buzsáki
- Department
of Inorganic and Analytical Chemistry, Budapest
University of Technology and Economics, Szent Gellért tér 4, H-1111 Budapest, Hungary
| | - Zsolt Kelemen
- Department
of Inorganic and Analytical Chemistry, Budapest
University of Technology and Economics, Szent Gellért tér 4, H-1111 Budapest, Hungary
| | - László Nyulászi
- Department
of Inorganic and Analytical Chemistry, Budapest
University of Technology and Economics, Szent Gellért tér 4, H-1111 Budapest, Hungary
- MTA-BME
Computation Driven Chemistry Research Group, Szent Gellért tér 4, H-1111 Budapest, Hungary
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14
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Shaikh AR, Ashraf M, AlMayef T, Chawla M, Poater A, Cavallo L. Amino acid ionic liquids as potential candidates for CO2 capture: Combined density functional theory and molecular dynamics simulations. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137239] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Jain P, Chaudhari VR, Kumar A. Water-assisted stability of carbene: cyclic voltammetric investigation of 1-ethyl-3-methylimidazolium ethylsulfate ionic liquid. Phys Chem Chem Phys 2019; 21:24126-24131. [PMID: 31657400 DOI: 10.1039/c9cp05033g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In this work, we report electrochemical studies on imidazolium-based ionic liquids with an objective to explore the possibility of carbene formation in their dilute aqueous solutions. Conventionally, water plays a detrimental role during investigations involving ionic liquids, and this role has been investigated via electrochemical studies in aqueous ionic liquid solutions. There are varying opinions regarding the influence of water on the physicochemical behaviour of ionic liquids that require an in-depth understanding. To eludicate the role of water, we attempted to evaluate the electrochemical performance of ionic liquids in water as a solvent, and the influence of water on ionic liquids was explored through feasibility and stability studies on carbene formed in an aqueous imidazolium-based ionic liquid solution. The electrochemical investigation of an aqueous solution of 1-ethyl-3-methylimidazolium ethylsulfate ([EMIM][EtSO4]) revealed a redox couple. Detailed investigations suggest that reduction of the imidazolium cation occurs at the C2 position, with subsequent formation of carbene. Furthermore, an anodic peak was found to be associated with the oxidation of carbene. The coulometric process associated with the anodic peaks indicated that the two-electron oxidation of carbene occurred. The stability of carbene in water was evaluated through the use of different protic and aprotic solvents. The hydrogen bond-forming ability of carbene with water seems to be responsible for its improved stability in water.
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Affiliation(s)
- Preeti Jain
- Physical & Material Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411008, India.
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16
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Filippov A, Antzutkin ON, Shah FU. Rapid carbene formation increases ion diffusivity in an imidazolium acetate ionic liquid confined between polar glass plates. Phys Chem Chem Phys 2019; 21:22531-22538. [PMID: 31588443 DOI: 10.1039/c9cp04504j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1-Ethyl-3-methyl-imidazolium acetate ([EMIM][OAc]) is one of the most widely used ionic liquids for various applications. This study is focussed on the chemical stability of [EMIM][OAc] on the surfaces of polar glass plates. 1H and 13C NMR spectroscopy and NMR diffusometry of [EMIM][OAc] IL confined between glass plates with a specific surface area 105-106 m-1 are thoroughly investigated. A rapid and spontaneous reaction took place on the surfaces of glass plates leading to the formation of neutral chemical moieties as evident by the appearance of new signals in the 1H NMR spectra. These new products are assigned as N-heterocyclic carbene (NHC) and acetic acid. These neutral chemical moieties have significantly increased the ion diffusivity by dissociation of the cation and the anion in [EMIM][OAc] IL. The yield and rate of formation of NHC and acetic acid are found to increase with the increasing surface area of polar glass plates and the time of contact between the IL and glass surfaces. Based on NMR spectroscopy, a dissociative reaction mechanism is proposed for the formation of free NHC in the neat [EMIM][OAc] IL.
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Affiliation(s)
- Andrei Filippov
- Chemistry of Interfaces, Luleå University of Technology, SE-97187 Luleå, Sweden. and Kazan State Medical University, 420012 Kazan, Russia
| | - Oleg N Antzutkin
- Chemistry of Interfaces, Luleå University of Technology, SE-97187 Luleå, Sweden. and Department of Physics, Warwick University, Coventry CV4 7AL, UK
| | - Faiz Ullah Shah
- Chemistry of Interfaces, Luleå University of Technology, SE-97187 Luleå, Sweden.
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17
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Fu HC, You F, Li HR, He LN. CO 2 Capture and in situ Catalytic Transformation. Front Chem 2019; 7:525. [PMID: 31396509 PMCID: PMC6667559 DOI: 10.3389/fchem.2019.00525] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 07/09/2019] [Indexed: 11/22/2022] Open
Abstract
The escalating rate of fossil fuel combustion contributes to excessive CO2 emission and the resulting global climate change has drawn considerable attention. Therefore, tremendous efforts have been devoted to mitigate the CO2 accumulation in the atmosphere. Carbon capture and storage (CCS) strategy has been regarded as one of the promising options for controlling CO2 build-up. However, desorption and compression of CO2 need extra energy input. To circumvent this energy issue, carbon capture and utilization (CCU) strategy has been proposed whereby CO2 can be captured and in situ activated simultaneously to participate in the subsequent conversion under mild conditions, offering valuable compounds. As an alternative to CCS, the CCU has attracted much concern. Although various absorbents have been developed for the CCU strategy, the direct, in situ chemical conversion of the captured CO2 into valuable chemicals remains in its infancies compared with the gaseous CO2 conversion. This review summarizes the recent progress on CO2 capture and in situ catalytic transformation. The contents are introduced according to the absorbent types, in which different reaction type is involved and the transformation mechanism of the captured CO2 and the role of the absorbent in the conversion are especially elucidated. We hope this review can shed light on the transformation of the captured CO2 and arouse broad concern on the CCU strategy.
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Affiliation(s)
- Hong-Chen Fu
- College of Pharmacy, Nankai University, Tianjin, China.,State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Fei You
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Hong-Ru Li
- College of Pharmacy, Nankai University, Tianjin, China.,State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Liang-Nian He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
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18
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Alkorta I, Elguero J. Prototropic tautomerism of the addition products of N-heterocyclic carbenes to CO2, CS2, and COS. Struct Chem 2019. [DOI: 10.1007/s11224-019-01381-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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19
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Brehm M, Pulst M, Kressler J, Sebastiani D. Triazolium-Based Ionic Liquids: A Novel Class of Cellulose Solvents. J Phys Chem B 2019; 123:3994-4003. [DOI: 10.1021/acs.jpcb.8b12082] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Martin Brehm
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
| | - Martin Pulst
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
| | - Jörg Kressler
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
| | - Daniel Sebastiani
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
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20
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Alkorta I, Elguero J. Interaction ofN-Heterocyclic Carbenes and Simple Carbenes with Small Molecules (One to Three Atoms) Excluding Metals: Formation of Covalent C-X Bonds. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3331] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Ibon Alkorta
- Instituto de Química Médica; CSIC; Juan de la Cierva, 3 Madrid E-28006 Spain
| | - José Elguero
- Instituto de Química Médica; CSIC; Juan de la Cierva, 3 Madrid E-28006 Spain
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21
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Donsbach C, Dehnen S. Formation of [(C
n
C
1
imTe)
4
Hg]
2+
(
n
= 6, 8) upon in‐situ Generation of Dialkylimidazole‐2‐Tellurones in Ionic Liquids at Room Temperature. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800771] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Carsten Donsbach
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) Philipps‐Universität Marburg Hans‐Meerwein‐Straße 4 35043 Marburg Germany
| | - Stefanie Dehnen
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) Philipps‐Universität Marburg Hans‐Meerwein‐Straße 4 35043 Marburg Germany
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22
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Gehrke S, Reckien W, Palazzo I, Welton T, Hollóczki O. On the Carbene-Like Reactions of Imidazolium Acetate Ionic Liquids: Can Theory and Experiments Agree? European J Org Chem 2018. [DOI: 10.1002/ejoc.201801050] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sascha Gehrke
- Mulliken Center for Theoretical Chemistry; University of Bonn; Beringstr. 4+6 Bonn Germany
- Max Planck Institute for Chemical Energy Conversion; Stiftstrasse 34-36 45470 Muelheim an der Ruhr Germany
| | - Werner Reckien
- Mulliken Center for Theoretical Chemistry; University of Bonn; Beringstr. 4+6 Bonn Germany
| | - Ivan Palazzo
- Department of Chemistry; Imperial College London; 2AZ London, SW7 UK
| | - Tom Welton
- Department of Chemistry; Imperial College London; 2AZ London, SW7 UK
| | - Oldamur Hollóczki
- Mulliken Center for Theoretical Chemistry; University of Bonn; Beringstr. 4+6 Bonn Germany
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23
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Simon NM, Zanatta M, Neumann J, Girard AL, Marin G, Stassen H, Dupont J. Cation−Anion−CO2
Interactions in Imidazolium-Based Ionic Liquid Sorbents. Chemphyschem 2018; 19:2879-2884. [DOI: 10.1002/cphc.201800751] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Nathalia M. Simon
- Institute of Chemistry; Universidade Federal do Rio Grande do Sul; Av. Bento Gonçalves, 9500 Porto Alegre 91501-970 RS Brazil
| | - Marcileia Zanatta
- Institute of Chemistry; Universidade Federal do Rio Grande do Sul; Av. Bento Gonçalves, 9500 Porto Alegre 91501-970 RS Brazil
| | - Jessé Neumann
- Institute of Chemistry; Universidade Federal do Rio Grande do Sul; Av. Bento Gonçalves, 9500 Porto Alegre 91501-970 RS Brazil
| | - Anne-Lise Girard
- Institute of Chemistry; Universidade Federal do Rio Grande do Sul; Av. Bento Gonçalves, 9500 Porto Alegre 91501-970 RS Brazil
| | - Graciane Marin
- Institute of Chemistry; Universidade Federal do Rio Grande do Sul; Av. Bento Gonçalves, 9500 Porto Alegre 91501-970 RS Brazil
| | - Hubert Stassen
- Institute of Chemistry; Universidade Federal do Rio Grande do Sul; Av. Bento Gonçalves, 9500 Porto Alegre 91501-970 RS Brazil
| | - 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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24
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Yan F, Dhumal NR, Kim HJ. CO 2 capture in ionic liquid 1-alkyl-3-methylimidazolium acetate: a concerted mechanism without carbene. Phys Chem Chem Phys 2018; 19:1361-1368. [PMID: 27976766 DOI: 10.1039/c6cp06556b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ionic liquids (ILs) provide a promising medium for CO2 capture. Recently, the family of ILs comprising imidazolium-based cations and acetate anions, such as 1-ethyl-3-methylimidazolium acetate (EMI+OAc-), has been found to react with CO2 and form carboxylate compounds. N-Heterocyclic carbene (NHC) is widely assumed to be responsible by directly reacting with CO2 though NHC has not been detected in these ILs. Herein, a computational analysis of CO2 capture in EMI+OAc- is presented. Quantum chemistry calculations predict that NHC is unstable in a polar environment, suggesting that NHC is not formed in EMI+OAc-. Ab initio molecular dynamics simulations indicate that an EMI+ ion "activated" by the approach of a CO2 molecule can donate its acidic proton to a neighboring OAc- anion and form a carboxylate compound with the CO2 molecule. Analysis of this termolecular process indicates that the EMI+-to-OAc- proton transfer and the formation of 1-ethyl-3-methylimidazolium-2-carboxylate occur essentially concurrently. Based on these findings, a novel concerted mechanism that does not involve NHC is proposed for CO2 capture.
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Affiliation(s)
- Fangyong Yan
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA.
| | - Nilesh R Dhumal
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA.
| | - Hyung J Kim
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, USA. and School of Computational Sciences, Korea Institute for Advanced Study, Seoul 02455, Korea
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25
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Gehrke S, Hollóczki O. Treten in der N-heterozyklischen Carben-Organokatalyse wirklich Carbene auf? Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708305] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sascha Gehrke
- Mulliken Center für Theoretische Chemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Beringstraße 4+6 53115 Bonn Deutschland
- Max-Planck-Institut für Chemische Energiekonversion; Stiftstraße 34-36 45470 Mülheim an der Ruhr Deutschland
| | - Oldamur Hollóczki
- Mulliken Center für Theoretische Chemie; Rheinische Friedrich-Wilhelms-Universität Bonn; Beringstraße 4+6 53115 Bonn Deutschland
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26
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Gehrke S, Hollóczki O. Are There Carbenes in N-Heterocyclic Carbene Organocatalysis? Angew Chem Int Ed Engl 2017; 56:16395-16398. [PMID: 29072807 DOI: 10.1002/anie.201708305] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 10/23/2017] [Indexed: 11/08/2022]
Abstract
Azolium cations are widely employed in organocatalysis to catalyse highly valuable synthetic processes in the presence of a base. These reactions are called "N-heterocyclic carbene catalysis", based on the assumption that they are initiated by the formation of a free carbene through deprotonation, which can then react with the substrates and thereby affect their reactivity to obtain the desired products. However, we herein provide evidence that an electrophilic aromatic substitution mechanism is energetically more favourable, in which the azolium cation reacts directly with the substrate, avoiding the formation of the free carbene in solution.
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Affiliation(s)
- Sascha Gehrke
- Mulliken Center for Theoretical Chemistry, University of Bonn, Beringstrasse 4+6, 53115, Bonn, Germany.,Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470, Muelheim an der Ruhr, Germany
| | - Oldamur Hollóczki
- Mulliken Center for Theoretical Chemistry, University of Bonn, Beringstrasse 4+6, 53115, Bonn, Germany
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27
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Dong M, Gao J, Liu C, Zhang D. DFT Study on the Formation Mechanism of Normal and Abnormal N-Heterocyclic Carbene–Carbon Dioxide Adducts from the Reaction of an Imidazolium-Based Ionic Liquid with CO2. J Phys Chem B 2017; 121:10276-10284. [DOI: 10.1021/acs.jpcb.7b07191] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mengmeng Dong
- Institute
of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Jun Gao
- Hubei
Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, P. R. China
| | - Chengbu Liu
- Institute
of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Dongju Zhang
- Institute
of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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28
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Akhmetshina AI, Gumerova OR, Atlaskin AA, Petukhov AN, Sazanova TS, Yanbikov NR, Nyuchev AV, Razov EN, Vorotyntsev IV. Permeability and selectivity of acid gases in supported conventional and novel imidazolium-based ionic liquid membranes. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.11.074] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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29
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Aydogan Gokturk P, Salzner U, Nyulászi L, Ulgut B, Kocabas C, Suzer S. XPS-evidence for in-situ electrochemically-generated carbene formation. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.03.053] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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30
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Affiliation(s)
- Binshen Wang
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Li Qin
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Tiancheng Mu
- Department
of Chemistry, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China
| | - Zhimin Xue
- Beijing
Key Laboratory of Lignocellulosic Chemistry, College of Materials
Science and Technology, Beijing Forestry University, 35 Tsinghua
East Road, Beijing 100083, China
| | - Guohua Gao
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
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31
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Aydogan Gokturk P, Donmez SE, Ulgut B, Türkmen YE, Suzer S. Optical and XPS evidence for the electrochemical generation of an N-heterocyclic carbene and its CS2 adduct from the ionic liquid [bmim][PF6]. NEW J CHEM 2017. [DOI: 10.1039/c7nj01996c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemical generation of an N-heterocyclic carbene–CS2 adduct in air-ambient and under vacuum, and its confirmation by XPS.
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Affiliation(s)
| | - S. E. Donmez
- Department of Chemistry
- Bilkent University
- Ankara 06800
- Turkey
| | - B. Ulgut
- Department of Chemistry
- Bilkent University
- Ankara 06800
- Turkey
| | - Y. E. Türkmen
- Department of Chemistry
- Bilkent University
- Ankara 06800
- Turkey
| | - S. Suzer
- Department of Chemistry
- Bilkent University
- Ankara 06800
- Turkey
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32
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Taskin M, Cognigni A, Zirbs R, Reimhult E, Bica K. Surface-active ionic liquids for palladium-catalysed cross coupling in water: effect of ionic liquid concentration on the catalytically active species. RSC Adv 2017; 7:41144-41151. [PMID: 29308189 PMCID: PMC5708357 DOI: 10.1039/c7ra07757b] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 08/10/2017] [Indexed: 01/02/2023] Open
Abstract
We report the design and synthesis of surface-active ionic liquids for application in palladium-catalyzed cross coupling reactions.
We report the design and synthesis of surface-active ionic liquids for application in palladium-catalyzed cross coupling reactions. A series of dodecylimidazolium-based ionic liquids were applied as additives in the Heck reaction of ethyl acrylate and iodobenzene, and high yields of >90% could be obtained in water without the addition of further ligands. Our results indicate that the ionic liquid concentration in water is the key factor affecting the formation of the catalytically active species and hence the yield. Moreover, imidazolium-based ionic liquids that are able to form a carbene species differ significantly from conventional cationic surfactants, as a concentration dependent formation of the N-heterocyclic carbene complex was observed.
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Affiliation(s)
- Meltem Taskin
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163, 1060 Vienna, Austria. ; ; Tel: +43 1 58801 163601
| | - Alice Cognigni
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163, 1060 Vienna, Austria. ; ; Tel: +43 1 58801 163601
| | - Ronald Zirbs
- Institute for Biologically Inspired Materials, Department of Nanobiotechnology, University of Natural Resources and Life Sciences, Vienna, Muthgasse 11-II, A-1190 Vienna, Austria
| | - Erik Reimhult
- Institute for Biologically Inspired Materials, Department of Nanobiotechnology, University of Natural Resources and Life Sciences, Vienna, Muthgasse 11-II, A-1190 Vienna, Austria
| | - Katharina Bica
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9/163, 1060 Vienna, Austria. ; ; Tel: +43 1 58801 163601
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33
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Chiarotto I, Feroci M, Inesi A. First direct evidence of N-heterocyclic carbene in BMIm acetate ionic liquids. An electrochemical and chemical study on the role of temperature. NEW J CHEM 2017. [DOI: 10.1039/c7nj00779e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Cyclic voltammetry measurements provide the first direct evidence of N-heterocyclic carbene in neat 1-butyl-3-methylimidazolium acetate ionic liquid at temperatures over 120 °C.
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Affiliation(s)
- I. Chiarotto
- Dept. SBAI, Sapienza University of Rome
- 00161 Rome
- Italy
| | - M. Feroci
- Dept. SBAI, Sapienza University of Rome
- 00161 Rome
- Italy
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34
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Advances in the Knowledge of N-Heterocyclic Carbenes Properties. The Backing of the Electrochemical Investigation. Catalysts 2016. [DOI: 10.3390/catal6110178] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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35
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Brünig T, Krekić K, Bruhn C, Pietschnig R. Calorimetric Studies and Structural Aspects of Ionic Liquids in Designing Sorption Materials for Thermal Energy Storage. Chemistry 2016; 22:16200-16212. [PMID: 27645474 PMCID: PMC5396372 DOI: 10.1002/chem.201602723] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Indexed: 11/08/2022]
Abstract
The thermal properties of a series of twenty-four ionic liquids (ILs) have been determined by isothermal titration calorimetry (ITC) with the aim of simulating processes involving water sorption. For eleven water-free ILs, the molecular structures have been determined by X-ray crystallography in the solid state, which have been used to derive the molecular volumes of the ionic components of the ILs. Moreover, the structures reveal a high prevalence of hydrogen bonding in these compounds. A relationship between the molecular volumes and the experimentally determined energies of dilution could be established. The highest energies of dilution observed in this series were obtained for the acetate-based ILs, which underlines their potential as working fluids in sorption-based thermal energy storage systems.
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Affiliation(s)
- Thorge Brünig
- Universität Kassel, Institut für Chemie und CINSaT, Heinrich-Plett-Strasse 40, 34132, Kassel, Germany
| | - Kristijan Krekić
- Universität Kassel, Institut für Chemie und CINSaT, Heinrich-Plett-Strasse 40, 34132, Kassel, Germany
| | - Clemens Bruhn
- Universität Kassel, Institut für Chemie und CINSaT, Heinrich-Plett-Strasse 40, 34132, Kassel, Germany
| | - Rudolf Pietschnig
- Universität Kassel, Institut für Chemie und CINSaT, Heinrich-Plett-Strasse 40, 34132, Kassel, Germany.
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36
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Neubauer SS, Schmid B, Reller C, Guldi DM, Schmid G. Alkalinity Initiated Decomposition of Mediating Imidazolium Ions in High Current Density CO2Electrolysis. ChemElectroChem 2016. [DOI: 10.1002/celc.201600461] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sebastian S. Neubauer
- Siemens AG, Corporate Technology; Günther-Scharowsky-Str. 1 91058 Erlangen Germany
- Department of Chemistry and Pharmacy; Friedrich-Alexander-Universität Erlangen-Nürnberg; Egerlandstr. 3 91058 Erlangen Germany
| | - Bernhard Schmid
- Siemens AG, Corporate Technology; Günther-Scharowsky-Str. 1 91058 Erlangen Germany
- Department of Chemistry and Pharmacy; Friedrich-Alexander-Universität Erlangen-Nürnberg; Egerlandstr. 1 91058 Erlangen Germany
| | - Christian Reller
- Siemens AG, Corporate Technology; Günther-Scharowsky-Str. 1 91058 Erlangen Germany
| | - Dirk M. Guldi
- Department of Chemistry and Pharmacy; Friedrich-Alexander-Universität Erlangen-Nürnberg; Egerlandstr. 3 91058 Erlangen Germany
| | - Günter Schmid
- Siemens AG, Corporate Technology; Günther-Scharowsky-Str. 1 91058 Erlangen Germany
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37
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Moya C, Alonso-Morales N, Gilarranz MA, Rodriguez JJ, Palomar J. Encapsulated Ionic Liquids for CO 2 Capture: Using 1-Butyl-methylimidazolium Acetate for Quick and Reversible CO 2 Chemical Absorption. Chemphyschem 2016; 17:3891-3899. [PMID: 27644041 DOI: 10.1002/cphc.201600977] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Indexed: 11/10/2022]
Abstract
The potential advantages of applying encapsulated ionic liquid (ENIL) to CO2 capture by chemical absorption with 1-butyl-3-methylimidazolium acetate [bmim][acetate] are evaluated. The [bmim][acetate]-ENIL is a particle material with solid appearance and 70 % w/w in ionic liquid (IL). The performance of this material as CO2 sorbent was evaluated by gravimetric and fixed-bed sorption experiments at different temperatures and CO2 partial pressures. ENIL maintains the favourable thermodynamic properties of the neat IL regarding CO2 absorption. Remarkably, a drastic increase of CO2 sorption rates was achieved using ENIL, related to much higher contact area after discretization. In addition, experiments demonstrate reversibility of the chemical reaction and the efficient ENIL regeneration, mainly hindered by the unfavourable transport properties. The common drawback of ILs as CO2 chemical absorbents (low absorption rate and difficulties in solvent regeneration) are overcome by using ENIL systems.
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Affiliation(s)
- Cristian Moya
- Sección de Ingeniería Química (Dep. de Química Física Aplicada), Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
| | - Noelia Alonso-Morales
- Sección de Ingeniería Química (Dep. de Química Física Aplicada), Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
| | - Miguel A Gilarranz
- Sección de Ingeniería Química (Dep. de Química Física Aplicada), Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
| | - Juan J Rodriguez
- Sección de Ingeniería Química (Dep. de Química Física Aplicada), Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
| | - Jose Palomar
- Sección de Ingeniería Química (Dep. de Química Física Aplicada), Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain
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38
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Finger LH, Guschlbauer J, Harms K, Sundermeyer J. N-Heterocyclic Olefin-Carbon Dioxide and -Sulfur Dioxide Adducts: Structures and Interesting Reactivity Patterns. Chemistry 2016; 22:16292-16303. [DOI: 10.1002/chem.201602973] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Lars H. Finger
- Fachbereich Chemie and Materials Science Centre; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Jannick Guschlbauer
- Fachbereich Chemie and Materials Science Centre; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Klaus Harms
- Fachbereich Chemie and Materials Science Centre; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Jörg Sundermeyer
- Fachbereich Chemie and Materials Science Centre; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
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39
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Miller CJ, Chadha U, Ulibarri-Sanchez JR, Dickie DA, Kemp RA. Structure and Lewis-base reactivity of bicyclic low-valent germanium and tin complexes bridged by bis(diisopropylphosphino)amine. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.01.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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40
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Majhi PK, Koner A, Schnakenburg G, Kelemen Z, Nyulászi L, Streubel R. Application of Imidazole-2-thione Substituents in Low-Coordinate Phosphorus Chemistry - Probing the Scope. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600703] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Paresh Kumar Majhi
- Institut fur Anorganische Chemie der Rheinischen Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Straße 1 53121 Bonn Germany
| | - Abhishek Koner
- Institut fur Anorganische Chemie der Rheinischen Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Straße 1 53121 Bonn Germany
| | - Gregor Schnakenburg
- Institut fur Anorganische Chemie der Rheinischen Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Straße 1 53121 Bonn Germany
| | - Zsolt Kelemen
- Department of Inorganic and Analytical Chemistry; Budapest University of Technology and Economics; Szt Gellért tér 4 1111 Budapest Hungary
| | - László Nyulászi
- Department of Inorganic and Analytical Chemistry; Budapest University of Technology and Economics; Szt Gellért tér 4 1111 Budapest Hungary
| | - Rainer Streubel
- Institut fur Anorganische Chemie der Rheinischen Friedrich-Wilhelms-Universität Bonn; Gerhard-Domagk-Straße 1 53121 Bonn Germany
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41
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Danten Y, Cabaço MI, Coutinho JAP, Pinaud N, Besnard M. DFT Study of the Reaction Mechanisms of Carbon Dioxide and its Isoelectronic Molecules CS2 and OCS Dissolved in Pyrrolidinium and Imidazolium Acetate Ionic Liquids. J Phys Chem B 2016; 120:5243-54. [PMID: 27186961 DOI: 10.1021/acs.jpcb.6b03229] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction mechanisms of CO2 and its isoelectronic molecules OCS and CS2 dissolved in N-butyl-N-methylpyrrolidinium acetate and in 1-butyl-3-methylimidazolium acetate were investigated by DFT calculations in "gas phase". The analysis of predicted multistep pathways allowed calculating energies of reaction and energy barriers of the processes. The major role played by the acetate anion in the degradation of the solutes CS2 and OCS as well as in the capture of OCS and CO2 by the imidazolium ring is highlighted. In both ionic liquids, this anion governs the conversion of CS2 into OCS and of OCS into CO2 through interatomic S-O exchanges between the anion and the solutes with formation of thioacetate anions. In imidazolium acetate, the selective capture of CS2 and OCS by the imidazolium ring competes with the S-O exchanges. From the calculated values of the energy barriers a basicity scale of the anions is proposed. The (13)C NMR chemical shifts of the predicted adducts were calculated and agree well with the experimental observations. It is argued that the scenario issued from the calculated pathways is shown qualitatively to be independent from the functionals and basis set used, constitute a valuable tool in the understanding of chemical reactions taking place in liquid phase.
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Affiliation(s)
- Y Danten
- Institut des Sciences Moléculaires, CNRS (UMR 5255), Université Bordeaux , 351 Cours de la Libération 33405 Talence Cedex, France
| | - M I Cabaço
- Centro de Física Atómica, Universidade de Lisboa , Avenida Professor Gama Pinto 2, 1694-003 Lisboa Codex, Portugal.,Departamento de Física, Instituto Superior Técnico , UTL, Avenida Rovisco Pais 1049-001 Lisboa, Portugal
| | - J A P Coutinho
- CICECO, Departamento de Química, Universidade de Aveiro 3810-193 Aveiro, Portugal
| | - Noël Pinaud
- Institut des Sciences Moléculaires, CNRS (UMR 5255), Université Bordeaux , 351 Cours de la Libération 33405 Talence Cedex, France
| | - M Besnard
- Institut des Sciences Moléculaires, CNRS (UMR 5255), Université Bordeaux , 351 Cours de la Libération 33405 Talence Cedex, France
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Feroci M, Chiarotto I, D'Anna F, Ornano L, Rizzo C, Inesi A. Azolium and acetate ions in DMF: Formation of free N-heterocyclic carbene. A voltammetric analysis. Electrochem commun 2016. [DOI: 10.1016/j.elecom.2016.03.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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N-Heterocyclic Carbenes and Parent Cations: Acidity, Nucleophilicity, Stability, and Hydrogen Bonding-Electrochemical Study and Ab Initio Calculations. ChemElectroChem 2016. [DOI: 10.1002/celc.201600187] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Lambert R, Coupillaud P, Wirotius AL, Vignolle J, Taton D. Imidazolium-Based Poly(Ionic Liquid)s Featuring Acetate Counter Anions: Thermally Latent and Recyclable Precursors of Polymer-SupportedN-Heterocyclic Carbenes for Organocatalysis. Macromol Rapid Commun 2016; 37:1143-9. [DOI: 10.1002/marc.201600019] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 02/16/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Romain Lambert
- Laboratoire de Chimie des Polymères Organiques; Université de Bordeaux; IPB-ENSCBP; F-33607 Pessac Cedex France
- Laboratoire de Chimie des Polymères Organiques; Centre National de la Recherche Scientifique; 16 Avenue Pey-Berland F-33607 Pessac Cedex France
| | - Paul Coupillaud
- Laboratoire de Chimie des Polymères Organiques; Université de Bordeaux; IPB-ENSCBP; F-33607 Pessac Cedex France
- Laboratoire de Chimie des Polymères Organiques; Centre National de la Recherche Scientifique; 16 Avenue Pey-Berland F-33607 Pessac Cedex France
| | - Anne-Laure Wirotius
- Laboratoire de Chimie des Polymères Organiques; Université de Bordeaux; IPB-ENSCBP; F-33607 Pessac Cedex France
- Laboratoire de Chimie des Polymères Organiques; Centre National de la Recherche Scientifique; 16 Avenue Pey-Berland F-33607 Pessac Cedex France
| | - Joan Vignolle
- Laboratoire de Chimie des Polymères Organiques; Université de Bordeaux; IPB-ENSCBP; F-33607 Pessac Cedex France
- Laboratoire de Chimie des Polymères Organiques; Centre National de la Recherche Scientifique; 16 Avenue Pey-Berland F-33607 Pessac Cedex France
| | - Daniel Taton
- Laboratoire de Chimie des Polymères Organiques; Université de Bordeaux; IPB-ENSCBP; F-33607 Pessac Cedex France
- Laboratoire de Chimie des Polymères Organiques; Centre National de la Recherche Scientifique; 16 Avenue Pey-Berland F-33607 Pessac Cedex France
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45
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Carbon dioxide transport in molten calcium carbonate occurs through an oxo-Grotthuss mechanism via a pyrocarbonate anion. Nat Chem 2016; 8:454-60. [DOI: 10.1038/nchem.2450] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 01/07/2016] [Indexed: 01/13/2023]
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46
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47
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Hollóczki O. Unveiling the peculiar hydrogen bonding behavior of solvated N-heterocyclic carbenes. Phys Chem Chem Phys 2016; 18:126-40. [DOI: 10.1039/c5cp05369b] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
After fitting a molecular mechanical force field for imidazol-2-ylidenes, MD simulations revealed carbene–carbene and three-center hydrogen bonds of carbenes. The practical importance of these structures is also highlighted.
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Affiliation(s)
- Oldamur Hollóczki
- Mulliken Center for Theoretical Chemistry
- University of Bonn
- D-53115 Bonn
- Germany
- Department of Inorganic and Analytical Chemistry
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48
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Cui G, Wang J, Zhang S. Active chemisorption sites in functionalized ionic liquids for carbon capture. Chem Soc Rev 2016; 45:4307-39. [DOI: 10.1039/c5cs00462d] [Citation(s) in RCA: 267] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Carbon capture with site-containing ionic liquids is reviewed with particular attention on the activation and design of the interaction sites.
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Affiliation(s)
- Guokai Cui
- Henan Key Laboratory of Green Chemistry
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
| | - Jianji Wang
- Henan Key Laboratory of Green Chemistry
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- Key Laboratory of Green Chemical Media and Reactions
- Ministry of Education
- School of Chemistry and Chemical Engineering
| | - Suojiang Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing 100190
- China
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Hugar KM, Kostalik HA, Coates GW. Imidazolium Cations with Exceptional Alkaline Stability: A Systematic Study of Structure–Stability Relationships. J Am Chem Soc 2015; 137:8730-7. [DOI: 10.1021/jacs.5b02879] [Citation(s) in RCA: 284] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Kristina M. Hugar
- Department of Chemistry and
Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Henry A. Kostalik
- Department of Chemistry and
Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Geoffrey W. Coates
- Department of Chemistry and
Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
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50
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Corvo MC, Sardinha J, Casimiro T, Marin G, Seferin M, Einloft S, Menezes SC, Dupont J, Cabrita EJ. A Rational Approach to CO2 Capture by Imidazolium Ionic Liquids: Tuning CO2 Solubility by Cation Alkyl Branching. CHEMSUSCHEM 2015; 8:1935-1946. [PMID: 25916411 DOI: 10.1002/cssc.201500104] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 03/11/2015] [Indexed: 06/04/2023]
Abstract
Branching at the alkyl side chain of the imidazolium cation in ionic liquids (ILs) was evaluated towards its effect on carbon dioxide (CO2 ) solubilization at 10 and 80 bar (1 bar=1×10(5) Pa). By combining high-pressure NMR spectroscopy measurements with molecular dynamics simulations, a full description of the molecular interactions that take place in the IL-CO2 mixtures can be obtained. The introduction of a methyl group has a significant effect on CO2 solubility in comparison with linear or fluorinated analogues. The differences in CO2 solubility arise from differences in liquid organization caused by structural changes in the cation. ILs with branched cations have similar short-range cation-anion orientations as those in ILs with linear side chains, but present differences in the long-range order. The introduction of CO2 does not cause perturbations in the former and benefits from the differences in the latter. Branching at the cation results in sponge-like ILs with enhanced capabilities for CO2 capture.
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Affiliation(s)
- Marta C Corvo
- REQUIMTE, UCIBIO, LAQV, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal).
| | - João Sardinha
- REQUIMTE, UCIBIO, LAQV, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
| | - Teresa Casimiro
- REQUIMTE, UCIBIO, LAQV, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
| | - Graciane Marin
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, 91501-970 Porto Alegre, RS (Brazil)
| | - Marcus Seferin
- PUCRS, Fac. Química, BR-90619900 Porto Alegre, RS (Brazil)
| | - Sandra Einloft
- PUCRS, Fac. Química, BR-90619900 Porto Alegre, RS (Brazil)
| | | | - Jairton Dupont
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, 91501-970 Porto Alegre, RS (Brazil)
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD (UK)
| | - Eurico J Cabrita
- REQUIMTE, UCIBIO, LAQV, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal).
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