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Kumar Panja S, Kumar S. Weak Intra and Intermolecular Interactions via Aliphatic Hydrogen Bonding in Piperidinium Based Ionic Liquids: Experimental, Topological and Molecular Dynamics Studies. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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2
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Hydrogen bonding between 1-ethyl-3-methyl-imidazolium dicyanamide ionic liquid and selected co-solvents with varying polarity: A DFT study. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Verma S, Verma A, Mondal M, Prasad NE, Srivastava J, Singh S, Verma JP, Saha S. Drastic influence of amide functionality and alkyl chain length dependent physical, thermal and structural properties of new pyridinium-amide cation based biodegradable room temperature ionic liquids. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131679] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Al Sheakh L, Niemann T, Villinger A, Stange P, Zaitsau DH, Strate A, Ludwig R. Three in One: The Versatility of Hydrogen Bonding Interaction in Halide Salts with Hydroxy-Functionalized Pyridinium Cations. Chemphyschem 2021; 22:1850-1856. [PMID: 34241946 PMCID: PMC8518508 DOI: 10.1002/cphc.202100424] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/08/2021] [Indexed: 11/28/2022]
Abstract
The paradigm of supramolecular chemistry relies on the delicate balance of noncovalent forces. Here we present a systematic approach for controlling the structural versatility of halide salts by the nature of hydrogen bonding interactions. We synthesized halide salts with hydroxy-functionalized pyridinium cations [HOCn Py]+ (n=2, 3, 4) and chloride, bromide and iodide anions, which are typically used as precursor material for synthesizing ionic liquids by anion metathesis reaction. The X-ray structures of these omnium halides show two types of hydrogen bonding: 'intra-ionic' H-bonds, wherein the anion interacts with the hydroxy group and the positively charged ring at the same cation, and 'inter-ionic' H-bonds, wherein the anion also interacts with the hydroxy group and the ring system but of different cations. We show that hydrogen bonding is controllable by the length of the hydroxyalkyl chain and the interaction strength of the anion. Some molten halide salts exhibit a third type of hydrogen bonding. IR spectra reveal elusive H-bonds between the OH groups of cations, showing interaction between ions of like charge. They are formed despite the repulsive interaction between the like-charged ions and compete with the favored cation-anion H-bonds. All types of H-bonding are analyzed by quantum chemical methods and the natural bond orbital approach, emphasizing the importance of charge transfer in these interactions. For simple omnium salts, we evidenced three distinct types of hydrogen bonds: Three in one!
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Affiliation(s)
- Loai Al Sheakh
- Universität RostockInstitut für Chemie, Abteilung für Physikalische ChemieDr.-Lorenz-Weg 218059RostockGermany
| | - Thomas Niemann
- Universität RostockInstitut für Chemie, Abteilung für Physikalische ChemieDr.-Lorenz-Weg 218059RostockGermany
| | - Alexander Villinger
- Institut für Chemie, Abteilung für Anorganische ChemieUniversität RostockAlbert-Einstein-Strasse 3a18059RostockGermany
| | - Peter Stange
- Universität RostockInstitut für Chemie, Abteilung für Physikalische ChemieDr.-Lorenz-Weg 218059RostockGermany
| | - Dzmitry H. Zaitsau
- Universität RostockInstitut für Chemie, Abteilung für Physikalische ChemieDr.-Lorenz-Weg 218059RostockGermany
- Department LL&MUniversity of RostockAlbert-Einstein-Str. 2518059RostockGermany
| | - Anne Strate
- Universität RostockInstitut für Chemie, Abteilung für Physikalische ChemieDr.-Lorenz-Weg 218059RostockGermany
- Department LL&MUniversity of RostockAlbert-Einstein-Str. 2518059RostockGermany
| | - Ralf Ludwig
- Universität RostockInstitut für Chemie, Abteilung für Physikalische ChemieDr.-Lorenz-Weg 218059RostockGermany
- Department LL&MUniversity of RostockAlbert-Einstein-Str. 2518059RostockGermany
- Leibniz-Institut für Katalyse an der Universität Rostock e.V.Albert-Einstein-Str. 29a18059RostockGermany
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Ozaki Y, Beć KB, Morisawa Y, Yamamoto S, Tanabe I, Huck CW, Hofer TS. Advances, challenges and perspectives of quantum chemical approaches in molecular spectroscopy of the condensed phase. Chem Soc Rev 2021; 50:10917-10954. [PMID: 34382961 DOI: 10.1039/d0cs01602k] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The purpose of this review is to demonstrate advances, challenges and perspectives of quantum chemical approaches in molecular spectroscopy of the condensed phase. Molecular spectroscopy, particularly vibrational spectroscopy and electronic spectroscopy, has been used extensively for a wide range of areas of chemical sciences and materials science as well as nano- and biosciences because it provides valuable information about structure, functions, and reactions of molecules. In the meantime, quantum chemical approaches play crucial roles in the spectral analysis. They also yield important knowledge about molecular and electronic structures as well as electronic transitions. The combination of spectroscopic approaches and quantum chemical calculations is a powerful tool for science, in general. Thus, our article, which treats various spectroscopy and quantum chemical approaches, should have strong implications in the wider scientific community. This review covers a wide area of molecular spectroscopy from far-ultraviolet (FUV, 120-200 nm) to far-infrared (FIR, 400-10 cm-1)/terahertz and Raman spectroscopy. As quantum chemical approaches, we introduce several anharmonic approaches such as vibrational self-consistent field (VSCF) and the combination of periodic harmonic calculations with anharmonic corrections based on finite models, grid-based techniques like the Numerov approach, the Cartesian coordinate tensor transfer (CCT) method, Symmetry-Adapted Cluster Configuration-Interaction (SAC-CI), and the ZINDO (Semi-empirical calculations at Zerner's Intermediate Neglect of Differential Overlap). One can use anharmonic approaches and grid-based approaches for both infrared (IR) and near-infrared (NIR) spectroscopy, while CCT methods are employed for Raman, Raman optical activity (ROA), FIR/terahertz and low-frequency Raman spectroscopy. Therefore, this review overviews cross relations between molecular spectroscopy and quantum chemical approaches, and provides various kinds of close-reality advanced spectral simulation for condensed phases.
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Affiliation(s)
- Yukihiro Ozaki
- School of Biological and Environmental Sciences, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan. and Toyota Physical and Chemical Research Institute, Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - Krzysztof B Beć
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Yusuke Morisawa
- Department of Chemistry, School of Science and Engineering, Kindai University, Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Shigeki Yamamoto
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Ichiro Tanabe
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Christian W Huck
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
| | - Thomas S Hofer
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Innrain 80-82, A6020 Innsbruck, Austria
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7
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Sastry NV, Trivedi PA. Drug anion based surface active ionic liquids: Molecular interactions, surface activity and micellization behavior in aqueous solutions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Stumphauser T, Kasza G, Domján A, Wacha A, Varga Z, Thomann Y, Thomann R, Pásztói B, Trötschler TM, Kerscher B, Mülhaupt R, Iván B. Nanoconfined Crosslinked Poly(ionic liquid)s with Unprecedented Selective Swelling Properties Obtained by Alkylation in Nanophase-Separated Poly(1-vinylimidazole)- l-poly(tetrahydrofuran) Conetworks. Polymers (Basel) 2020; 12:E2292. [PMID: 33036354 PMCID: PMC7599712 DOI: 10.3390/polym12102292] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/03/2020] [Accepted: 10/05/2020] [Indexed: 01/13/2023] Open
Abstract
Despite the great interest in nanoconfined materials nowadays, nanocompartmentalized poly(ionic liquid)s (PILs) have been rarely investigated so far. Herein, we report on the successful alkylation of poly(1-vinylimidazole) with methyl iodide in bicontinuous nanophasic poly(1-vinylimidazole)-l-poly(tetrahydrofuran) (PVIm-l-PTHF) amphiphilic conetworks (APCNs) to obtain nanoconfined methylated PVImMe-l-PTHF poly(ionic liquid) conetworks (PIL-CNs). A high extent of alkylation (~95%) was achieved via a simple alkylation process with MeI at room temperature. This does not destroy the bicontinuous nanophasic morphology as proved by SAXS and AFM, and PIL-CNs with 15-20 nm d-spacing and poly(3-methyl-1-vinylimidazolium iodide) PIL nanophases with average domain sizes of 8.2-8.4 nm are formed. Unexpectedly, while the swelling capacity of the PIL-CN dramatically increases in aprotic polar solvents, such as DMF, NMP, and DMSO, reaching higher than 1000% superabsorbent swelling degrees, the equilibrium swelling degrees decrease in even highly polar protic (hydrophilic) solvents, like water and methanol. An unprecedented Gaussian-type relationship was found between the ratios of the swelling degrees versus the polarity index, indicating increased swelling for the nanoconfined PVImMe-l-PTHF PIL-CNs in solvents with a polarity index between ~6 and 9.5. In addition to the nanoconfined structural features, the unique selective superabsorbent swelling behavior of the PIL-CNs can also be utilized in various application fields.
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Affiliation(s)
- Tímea Stumphauser
- Polymer Chemistry Research Group, Institute of Materials and Environment Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary
- George Hevesy PhD School of Chemistry, Institute of Chemistry, Faculty of Science, Eötvös Loránd University, Pázmány Péter sétány 2, H-1117 Budapest, Hungary
| | - György Kasza
- Polymer Chemistry Research Group, Institute of Materials and Environment Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary
| | - Attila Domján
- NMR Research Laboratory, Instrumentation Center, Research Centre for Natural Sciences, Magyar TudóSok Körútja 2, H-1117 Budapest, Hungary
| | - András Wacha
- Biological Nanochemistry Research Group, Institute of Materials and Environment Chemistry, Research Centre for Natural Sciences, Magyar Tudósok Körútja 2, H-1117 Budapest, Hungary
| | - Zoltán Varga
- Biological Nanochemistry Research Group, Institute of Materials and Environment Chemistry, Research Centre for Natural Sciences, Magyar Tudósok Körútja 2, H-1117 Budapest, Hungary
| | - Yi Thomann
- Freiburg Materials Research Center, University of Freiburg, Stefan-Meier-Str. 21, D-79104 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), University of Freiburg, Georges-Köhler-Allee 105, D-79110 Freiburg, Germany
| | - Ralf Thomann
- Freiburg Materials Research Center, University of Freiburg, Stefan-Meier-Str. 21, D-79104 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), University of Freiburg, Georges-Köhler-Allee 105, D-79110 Freiburg, Germany
| | - Balázs Pásztói
- Polymer Chemistry Research Group, Institute of Materials and Environment Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary
- George Hevesy PhD School of Chemistry, Institute of Chemistry, Faculty of Science, Eötvös Loránd University, Pázmány Péter sétány 2, H-1117 Budapest, Hungary
| | - Tobias M Trötschler
- Freiburg Materials Research Center, University of Freiburg, Stefan-Meier-Str. 21, D-79104 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), University of Freiburg, Georges-Köhler-Allee 105, D-79110 Freiburg, Germany
- Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, D-79104 Freiburg, Germany
| | - Benjamin Kerscher
- Freiburg Materials Research Center, University of Freiburg, Stefan-Meier-Str. 21, D-79104 Freiburg, Germany
- Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, D-79104 Freiburg, Germany
| | - Rolf Mülhaupt
- Freiburg Materials Research Center, University of Freiburg, Stefan-Meier-Str. 21, D-79104 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), University of Freiburg, Georges-Köhler-Allee 105, D-79110 Freiburg, Germany
- Institute for Macromolecular Chemistry, University of Freiburg, Stefan-Meier-Str. 31, D-79104 Freiburg, Germany
| | - Béla Iván
- Polymer Chemistry Research Group, Institute of Materials and Environment Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary
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Reddy TDN, Mallik BS. Ionic Dynamics of Hydroxylammonium Ionic Liquids: A Classical Molecular Dynamics Simulation Study. J Phys Chem B 2020; 124:4960-4974. [PMID: 32452686 DOI: 10.1021/acs.jpcb.0c01388] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Th. Dhileep N. Reddy
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, 502285 Sangareddy, Telangana, India
| | - Bhabani S. Mallik
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, 502285 Sangareddy, Telangana, India
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11
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Soltanabadi A, Bahrami M. Gas-phase electronic properties of tri-cationic imidazolium-based ionic liquids in comparison with mono- and di-cationic ionic liquids. J Mol Graph Model 2020; 96:107529. [PMID: 31918318 DOI: 10.1016/j.jmgm.2019.107529] [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: 09/07/2019] [Revised: 12/28/2019] [Accepted: 12/28/2019] [Indexed: 10/25/2022]
Abstract
The optimized geometries, electronic structures, and gas-phase properties of widely applicable non-linear trigeminal tri-cationic ILs (TT-X3) were investigated using density functional theory (DFT) calculations and compared with mono- (M-X) and di-cationic (D-X2) ionic liquids. The studied ILs are based on the imidazolium cation containing halide (X‾) anions, where X‾ = Cl‾, Br‾ and I‾. Inter-molecular hydrogen bonds were studied by atoms in molecules (AIM) and natural bond orbital (NBO) analyses. Accordingly the most significant cation-anion charge transfer is related to C1-H1 … X (X = Cl, Br, I) interaction which strongly occurs in TT-X3 ILs and especially in TT-Cl3. Among ILs under investigation, TT-Cl3 has the strongest cation-anion interaction. Also M - I IL has the largest and D-Cl2 has the smallest electrical dipole moment.
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Affiliation(s)
- Azim Soltanabadi
- Department of Physical Chemistry, Faculty of Chemistry, Razi University, Kermanshahm, Iran.
| | - Maryam Bahrami
- Department of Chemistry, Shiraz University, Shiraz, 71946, Iran.
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12
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Darabi L, Zare M. Theoretical study on the structure and electronic properties of alkylimidazolium iodide ionic liquids: the effect of alkyl chain length. NEW J CHEM 2020. [DOI: 10.1039/c9nj05687d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Study on the cation–anion interaction energies of 1-alkyl-3-methylimidazolium iodide ionic liquids using electronic structure calculations and investigation of their correlations with thermophysical properties.
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Affiliation(s)
- Leila Darabi
- Department of Chemistry
- Faculty of Science
- Shahid Chamran University of Ahvaz
- Ahvaz
- Iran
| | - Morteza Zare
- Department of Chemistry
- Faculty of Science
- Shahid Chamran University of Ahvaz
- Ahvaz
- Iran
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13
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He Y, Saang’onyo D, Ladipo F, Knutson BL, Rankin SE. In Situ Fourier Transform Infrared Study of the Effects of Silica Mesopore Confinement on Hydration of Ionic Liquid 1-Butyl-3-methylimidazolium Chloride. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Oh S, Morales-Collazo O, Brennecke JF. Cation-Anion Interactions in 1-Ethyl-3-methylimidazolium-Based Ionic Liquids with Aprotic Heterocyclic Anions (AHAs). J Phys Chem B 2019; 123:8274-8284. [PMID: 31500414 DOI: 10.1021/acs.jpcb.9b06102] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ionic liquids with aprotic heterocyclic anions (AHAs) have been developed for CO2 capture but have been considered for other applications as well. Previously, we have shown that AHA ILs, where the only site for reaction with CO2 is the anion, the CO2 capacity correlates with anion basicity. Moreover, we have shown that 1-ethyl-3-methylimidazolium ([Emim]+)AHA ILs can react with CO2 in two ways. The first is with the anion to form a carbamate. The second is by reaction of the deprotonated C2 of the imidazolium cation to form a carboxylate. Here we show that the amount of carboxylate formed when [Emim]+ AHA ILs are exposed to CO2 is not proportional to the anion basicity, contrary to expectations. Rather, it is roughly the same for all AHA ILs investigated, as long as the anion is able to readily deprotonate the C2. Moreover, the strength of the hydrogen bond between C2-H and the anion is not proportional to the anion basicity, once again contrary to expectations. In addition, we discovered that deuterium exchange occurs not only with the acidic proton on the C2 of the cation but also with the less acidic C4 and C5 protons of the imidazolium cation, when the anions are sufficiently basic. These conclusions were reached based on quantification of cation-CO2 and anion-CO2 complex formation, IR spectra, 1H NMR chemical shifts, and deuterium exchange equilibrium and kinetics.
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Affiliation(s)
- Seungmin Oh
- McKetta Department of Chemical Engineering , University of Texas at Austin , Austin , Texas 78712 , United States
| | - Oscar Morales-Collazo
- McKetta Department of Chemical Engineering , University of Texas at Austin , Austin , Texas 78712 , United States
| | - Joan F Brennecke
- McKetta Department of Chemical Engineering , University of Texas at Austin , Austin , Texas 78712 , United States
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15
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Non-covalent interactions in bmimCl/co-solvent mixtures: A FTIR spectroscopy and computational study. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.092] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Sanchora P, Pandey DK, Rana D, Materny A, Singh DK. Impact of Size and Electronegativity of Halide Anions on Hydrogen Bonds and Properties of 1-Ethyl-3-methylimidazolium-Based Ionic Liquids. J Phys Chem A 2019; 123:4948-4963. [DOI: 10.1021/acs.jpca.9b04116] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paridhi Sanchora
- Department of Physics, Institute of Infrastructure Technology Research & Management, Ahmedabad 380026, India
| | - Deepak K. Pandey
- Department of Physics, Institute of Infrastructure Technology Research & Management, Ahmedabad 380026, India
| | - Debkumar Rana
- Physics and Earth Sciences, Jacobs University Bremen, 28759 Bremen, Germany
| | - Arnulf Materny
- Physics and Earth Sciences, Jacobs University Bremen, 28759 Bremen, Germany
| | - Dheeraj K. Singh
- Department of Physics, Institute of Infrastructure Technology Research & Management, Ahmedabad 380026, India
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17
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Kusama H. Interaction between dyes and SeCN−–(SeCN)2 redox mediator in dye-sensitized solar cells. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.03.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Faria LFO, Nobrega MM, Falsini N, Fanetti S, Temperini MLA, Bini R, Ribeiro MCC. Structure and Reactivity of the Ionic Liquid 1-Allyl-3-methylimidazolium Iodide under High Pressure. J Phys Chem B 2019; 123:1822-1830. [PMID: 30730744 DOI: 10.1021/acs.jpcb.8b10669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Poly(ionic liquid)s are an interesting class of compounds because of their unique chemical and physical properties gathering the characteristics of ionic liquids and polymers. Pressure and temperature have been demonstrated to be alternative parameters to obtain polymers from monomeric species using only physical tools. In this work, we investigate the reaction under high pressure and room temperature of the ionic liquid 1-allyl-3-methylimidazolium iodide by using the diamond anvil cell technique in combination with synchrotron X-ray diffraction and electronic and vibrational spectroscopies. The results indicate a chemical reaction happening through the terminal double bond of the allyl group both in crystalline and glassy phases with the onset of the reaction around ∼7 GPa. Vibrational spectra present evidence for an oligomerization reaction in both the phases. The reaction occurring both in glassy and crystal phases indicates a mechanism not driven by collective motions and likely related to local topological arrangements. The results presented herein extend our understanding of ionic liquid instability boundaries under high pressure and contribute to the development of alternative synthetic routes to achieve poly(ionic liquids).
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Affiliation(s)
- Luiz F O Faria
- Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química , Universidade de São Paulo , Av. Prof. Lineu Prestes 748 , 05508-000 São Paulo , Brazil
| | - Marcelo M Nobrega
- Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química , Universidade de São Paulo , Av. Prof. Lineu Prestes 748 , 05508-000 São Paulo , Brazil.,LENS, European Laboratory for Nonlinear Spectroscopy , Via Nello Carrara 1 , 50019 Florence , Sesto Fiorentino, Italy
| | - Naomi Falsini
- LENS, European Laboratory for Nonlinear Spectroscopy , Via Nello Carrara 1 , 50019 Florence , Sesto Fiorentino, Italy
| | - Samuele Fanetti
- LENS, European Laboratory for Nonlinear Spectroscopy , Via Nello Carrara 1 , 50019 Florence , Sesto Fiorentino, Italy.,Dipartimento di Chimica"Ugo Schiff"dell'Università degli Studi di Firenze , Via della Lastruccia 3 , 50019 Florence , Sesto Fiorentino, Italy
| | - Marcia L A Temperini
- Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química , Universidade de São Paulo , Av. Prof. Lineu Prestes 748 , 05508-000 São Paulo , Brazil
| | - Roberto Bini
- LENS, European Laboratory for Nonlinear Spectroscopy , Via Nello Carrara 1 , 50019 Florence , Sesto Fiorentino, Italy.,Dipartimento di Chimica"Ugo Schiff"dell'Università degli Studi di Firenze , Via della Lastruccia 3 , 50019 Florence , Sesto Fiorentino, Italy
| | - Mauro C C Ribeiro
- Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química , Universidade de São Paulo , Av. Prof. Lineu Prestes 748 , 05508-000 São Paulo , Brazil
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Tanabe I, Suyama A, Sato T, Fukui KI. Potential Dependence of Electronic Transition Spectra of Interfacial Ionic Liquids Studied by Newly Developed Electrochemical Attenuated Total Reflectance Spectroscopy. Anal Chem 2019; 91:3436-3442. [DOI: 10.1021/acs.analchem.8b04931] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ichiro Tanabe
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Aki Suyama
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Taiki Sato
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Ken-ichi Fukui
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531, Japan
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20
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Effect of the external electric field on the electronic structure, spectroscopic features, NLO properties, and interionic interactions in ionic liquids: A DFT approach. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.10.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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21
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Che Q, Fan H, Duan X, Feng F, Mao W, Han X. Layer by layer self-assembly fabrication of high temperature proton exchange membrane based on ionic liquids and polymers. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.08.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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22
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Hollóczki O, Wolff A, Pallmann J, Whiteside RE, Hartley J, Grasser MA, Nockemann P, Brunner E, Doert T, Ruck M. Spontaneous Substitutions at Phosphorus Trihalides in Imidazolium Halide Ionic Liquids: Grotthuss Diffusion of Anions? Chemistry 2018; 24:16323-16331. [PMID: 30157298 DOI: 10.1002/chem.201803558] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Oldamur Hollóczki
- Mulliken Center for Theoretical Chemistry; University of Bonn; Beringstrasse 4+6 53115 Bonn Germany
| | - Alexander Wolff
- Faculty of Chemistry and Food Chemistry; Technische Universität Dresden; 01062 Dresden Germany
| | - Julia Pallmann
- Faculty of Chemistry and Food Chemistry; Technische Universität Dresden; 01062 Dresden Germany
| | - Rachel E. Whiteside
- School of Chemistry and Chemical Engineering; Queen's University of Belfast; Belfast BT7 1NN UK
| | - Jennifer Hartley
- Institute of Inorganic Chemistry; TU Bergakademie Freiberg; 09599 Freiberg Germany
| | - Matthias A. Grasser
- Faculty of Chemistry and Food Chemistry; Technische Universität Dresden; 01062 Dresden Germany
| | - Peter Nockemann
- School of Chemistry and Chemical Engineering; Queen's University of Belfast; Belfast BT7 1NN UK
| | - Eike Brunner
- Faculty of Chemistry and Food Chemistry; Technische Universität Dresden; 01062 Dresden Germany
| | - Thomas Doert
- Faculty of Chemistry and Food Chemistry; Technische Universität Dresden; 01062 Dresden Germany
| | - Michael Ruck
- Faculty of Chemistry and Food Chemistry; Technische Universität Dresden; 01062 Dresden Germany
- Max Planck Institute for Chemical Physics of Solids; Nöthnitzer Strasse 40 01187 Dresden Germany
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23
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Xu J, Yi L, Mou Y, Cao J, Wang C. Effect of a molecule of imidazolium bromide ionic liquid on the structure and properties of cytosine by density functional theory. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.08.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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24
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Yamada T, Mizuno M. Characteristic Spectroscopic Features because of Cation-Anion Interactions Observed in the 700-950 cm -1 Range of Infrared Spectroscopy for Various Imidazolium-Based Ionic Liquids. ACS OMEGA 2018; 3:8027-8035. [PMID: 31458940 PMCID: PMC6644554 DOI: 10.1021/acsomega.8b00938] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 07/05/2018] [Indexed: 06/10/2023]
Abstract
The 700-950 cm-1 range in infrared spectroscopy was investigated for various imidazolium-based ionic liquids (ILs). Two main vibrational modes of the methylimidazolium cation exist in this region. At 700-800 cm-1, there is an out-of-plane +C(2)-H and +C(4,5)-H bending mode with a larger motion of +C(4,5)-H in the imidazolium ring, whereas at 800-950 cm-1, there is an out-of-plane +C(2)-H and +C(4,5)-H bending mode with a larger motion of +C(2)-H in the imidazolium ring. The molar-concentration-normalized absorbance spectrum of the former band at 700-800 cm-1, which is related to the bending mode with a large +C(4,5)-H motion in the imidazolium ring, is not particularly sensitive to the interactions with anions. The molar-concentration-normalized absorbance spectrum of the latter band at 800-950 cm-1 was nearly identical for ILs that have methylimidazolium cations with carbon chains of different lengths and the same anions. The band shape of the latter band, which is related to the bending mode with a large out-of-plane +C(2)-H bending motion, was highly sensitive to the interactions with anions and, interestingly, both blue- and red-shifted tendencies in the spectrum for each system were observed.
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Affiliation(s)
- Toshiki Yamada
- Advanced
ICT Research Institute, National Institute
of Information and Communications Technology, 588-2 Iwaoka, Kobe 651-2492, Japan
| | - Maya Mizuno
- Applied
Electromagnetic Research Institute, National
Institute of Information and Communications Technology, 4-2-1 Nukuikitamachi, Koganei, Tokyo 184-8795, Japan
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25
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Change of hydrogen bonding structure in ionic liquid mixtures by anion type. J Chem Phys 2018; 148:193827. [DOI: 10.1063/1.5010067] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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26
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Kumar A, Banjare MK, Sinha S, Yadav T, Sahu R, Satnami ML, Ghosh KK. Imidazolium-Based Ionic Liquid as Modulator of Physicochemical Properties of Cationic, Anionic, Nonionic, and Gemini Surfactants. J SURFACTANTS DETERG 2018. [DOI: 10.1002/jsde.12032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Amit Kumar
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur Chhattisgarh 492010 India
| | - Manoj K. Banjare
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur Chhattisgarh 492010 India
| | - Srishti Sinha
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur Chhattisgarh 492010 India
| | - Toshikee Yadav
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur Chhattisgarh 492010 India
| | - Reshma Sahu
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur Chhattisgarh 492010 India
| | - Manmohan L. Satnami
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur Chhattisgarh 492010 India
| | - Kallol K. Ghosh
- School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur Chhattisgarh 492010 India
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27
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Panja SK, Srivastava N, Srivastava J, Prasad NE, Noothalapati H, Shigeto S, Saha S. Evidence of C--F-P and aromatic π--F-P weak interactions in imidazolium ionic liquids and its consequences. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 194:117-125. [PMID: 29331812 DOI: 10.1016/j.saa.2017.12.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 11/28/2017] [Accepted: 12/14/2017] [Indexed: 06/07/2023]
Abstract
A simple change from alkyl group to alkene in side chain of imidazolium cation with same anion resulted in a drastic impact on physical properties (e.g., melting point) from bmimPF6 IL to cmimPF6 IL. The underlying reasons have been elucidated by structural and interaction studies with the help of DSC, SCXRD, vibrational and multi-nuclear NMR spectroscopic techniques. Experiments reveal existence of new weak interactions involving the carbon and π cloud of the imidazolium aromatic ring with fluoride of PF6 anion (i.e., C2--F-P and π--F-P) in cmimPF6 but are absent in structurally similar prototype IL, bmimPF6. Though weak, these interactions helped to form ladder type supramolecular arrangement, resulting in quite high melting point for cmimPF6 IL compared to bmimPF6 IL. These findings emphasize that an IL system can behave uniquely because of the existence of uncommon weak interactions.
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Affiliation(s)
- Sumit Kumar Panja
- Department of Chemistry, Centre for Advanced Studies, Institute of Science, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Nitin Srivastava
- Department of Chemistry, Centre for Advanced Studies, Institute of Science, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Jyoti Srivastava
- Defence Materials and Stores Research and Development Establishment (DMSRDE), Kanpur, Uttar Pradesh, India
| | - Namburi Eswara Prasad
- Defence Materials and Stores Research and Development Establishment (DMSRDE), Kanpur, Uttar Pradesh, India
| | - Hemanth Noothalapati
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Shinsuke Shigeto
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Satyen Saha
- Department of Chemistry, Centre for Advanced Studies, Institute of Science, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India.
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28
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Kishimura H, Aono M, Kyuko Y, Nagaya S, Koyama S, Abe H. Spontaneous polyiodide formation by unbalancing of charge in room-temperature ionic liquid-lithium salt solutions. Chem Phys 2018. [DOI: 10.1016/j.chemphys.2018.01.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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29
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Panja SK, Saha S. Microheterogeneity in imidazolium and piperidinium cation-based ionic liquids: 1D and 2D NMR studies. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2018; 56:95-102. [PMID: 28503908 DOI: 10.1002/mrc.4610] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 04/20/2017] [Accepted: 05/08/2017] [Indexed: 06/07/2023]
Abstract
Existence of microheterogeneity of imidazolium and piperidinium cation-based ionic liquids (ILs) containing PF6 and NTf2 anions has been investigated by 1D and 2D NMR spectroscopy. 2D NMR (especially NOESY and HOESY) has been employed for studying the interactions present between cation and anion as well as the intermolecular interaction among cations. HOESY spectrum shows that fluorine of anion ( PF6- and NTf2-) significantly interacts with proton of the cations. Combined results of HOESY and NOESY for imidazolium IL indicate that the PF6- and imidazolium cation are distributed in organized manner, resulting a heterogeneous environment in liquid state. We have also observed existence of heterogeneous environment for piperidinium cation-based ILs which is different from imidazolium ILs. It appears that existence of microheterogeneity in IL is ubiquitous and therefore open up the ILs field to revisit. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Sumit Kumar Panja
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Satyen Saha
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
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30
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López Lago E, Seijas JA, de Pedro I, Rodríguez Fernández J, Vázquez-Tato MP, González JA, Rilo E, Segade L, Cabeza O, Rodríguez Fernández CD, Arosa Y, Algnamat BS, Varela LM, Troncoso J, de la Fuente R. Structural and physical properties of a new reversible and continuous thermochromic ionic liquid in a wide temperature interval: [BMIM]4[Ni(NCS)6]. NEW J CHEM 2018. [DOI: 10.1039/c8nj03294g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Continuous and reversible solar-responsive thermochromism in [BMIM]4[Ni(NCS)6], an ionic liquid that withstands numerous heating–cooling cycles.
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31
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Tanabe I, Suyama A, Sato T, Fukui KI. Systematic analysis of various ionic liquids by attenuated total reflectance spectroscopy (145–450 nm) and quantum chemical calculations. Analyst 2018; 143:2539-2545. [DOI: 10.1039/c8an00563j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Electronic absorption spectra in 140–450 nm were investigated by attenuated total reflectance spectroscopy and quantum chemical calculations.
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Affiliation(s)
- Ichiro Tanabe
- Department of Materials Engineering Science
- Graduate School of Engineering Science
- Osaka University
- Osaka 560-8531
- Japan
| | - Aki Suyama
- Department of Materials Engineering Science
- Graduate School of Engineering Science
- Osaka University
- Osaka 560-8531
- Japan
| | - Taiki Sato
- Department of Materials Engineering Science
- Graduate School of Engineering Science
- Osaka University
- Osaka 560-8531
- Japan
| | - Ken-ichi Fukui
- Department of Materials Engineering Science
- Graduate School of Engineering Science
- Osaka University
- Osaka 560-8531
- Japan
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32
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Yang F, Wang X, Tan H, Liu Z. Improvement the viscosity of imidazolium-based ionic liquid using organic solvents for biofuels. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.10.107] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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33
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Panda S, Kundu K, Umapathy S, Gardas RL. A Combined Experimental and Theoretical Approach to Understand the Structure and Properties ofN-Methylpyrrolidone-Based Protic Ionic Liquids. Chemphyschem 2017; 18:3416-3428. [DOI: 10.1002/cphc.201700886] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 09/17/2017] [Indexed: 12/23/2022]
Affiliation(s)
- Somenath Panda
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - Kaushik Kundu
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
| | - Siva Umapathy
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; Bangalore 560012 India
| | - Ramesh L. Gardas
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
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34
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Shukla M. Hydrogen bonding interactions in nicotinamide Ionic Liquids: A comparative spectroscopic and DFT studies. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.11.067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Izgorodina EI, Seeger ZL, Scarborough DLA, Tan SYS. Quantum Chemical Methods for the Prediction of Energetic, Physical, and Spectroscopic Properties of Ionic Liquids. Chem Rev 2017; 117:6696-6754. [PMID: 28139908 DOI: 10.1021/acs.chemrev.6b00528] [Citation(s) in RCA: 125] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The accurate prediction of physicochemical properties of condensed systems is a longstanding goal of theoretical (quantum) chemistry. Ionic liquids comprising entirely of ions provide a unique challenge in this respect due to the diverse chemical nature of available ions and the complex interplay of intermolecular interactions among them, thus resulting in the wide variability of physicochemical properties, such as thermodynamic, transport, and spectroscopic properties. It is well understood that intermolecular forces are directly linked to physicochemical properties of condensed systems, and therefore, an understanding of this relationship would greatly aid in the design and synthesis of functionalized materials with tailored properties for an application at hand. This review aims to give an overview of how electronic structure properties obtained from quantum chemical methods such as interaction/binding energy and its fundamental components, dipole moment, polarizability, and orbital energies, can help shed light on the energetic, physical, and spectroscopic properties of semi-Coulomb systems such as ionic liquids. Particular emphasis is given to the prediction of their thermodynamic, transport, spectroscopic, and solubilizing properties.
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Affiliation(s)
- Ekaterina I Izgorodina
- Monash Computational Chemistry Group, School of Chemistry, Monash University , 17 Rainforest Walk, Clayton, Victoria 3800, Australia
| | - Zoe L Seeger
- Monash Computational Chemistry Group, School of Chemistry, Monash University , 17 Rainforest Walk, Clayton, Victoria 3800, Australia
| | - David L A Scarborough
- Monash Computational Chemistry Group, School of Chemistry, Monash University , 17 Rainforest Walk, Clayton, Victoria 3800, Australia
| | - Samuel Y S Tan
- Monash Computational Chemistry Group, School of Chemistry, Monash University , 17 Rainforest Walk, Clayton, Victoria 3800, Australia
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36
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Abstract
Vibrational spectroscopy has continued use as a powerful tool to characterize ionic liquids since the literature on room temperature molten salts experienced the rapid increase in number of publications in the 1990's. In the past years, infrared (IR) and Raman spectroscopies have provided insights on ionic interactions and the resulting liquid structure in ionic liquids. A large body of information is now available concerning vibrational spectra of ionic liquids made of many different combinations of anions and cations, but reviews on this literature are scarce. This review is an attempt at filling this gap. Some basic care needed while recording IR or Raman spectra of ionic liquids is explained. We have reviewed the conceptual basis of theoretical frameworks which have been used to interpret vibrational spectra of ionic liquids, helping the reader to distinguish the scope of application of different methods of calculation. Vibrational frequencies observed in IR and Raman spectra of ionic liquids based on different anions and cations are discussed and eventual disagreements between different sources are critically reviewed. The aim is that the reader can use this information while assigning vibrational spectra of an ionic liquid containing another particular combination of anions and cations. Different applications of IR and Raman spectroscopies are given for both pure ionic liquids and solutions. Further issues addressed in this review are the intermolecular vibrations that are more directly probed by the low-frequency range of IR and Raman spectra and the applications of vibrational spectroscopy in studying phase transitions of ionic liquids.
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Affiliation(s)
- Vitor H Paschoal
- Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo , Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil
| | - Luiz F O Faria
- Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo , Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil
| | - Mauro C C Ribeiro
- Laboratório de Espectroscopia Molecular, Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo , Av. Prof. Lineu Prestes 748, São Paulo 05508-000, Brazil
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37
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Chen C, Liu F, Fan T, Zhou Q, Peng Q. Solubilization of seven hydrophobic pesticides in quaternary ammonium based eco-friendly ionic liquid aqueous systems. NEW J CHEM 2017. [DOI: 10.1039/c7nj01445g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Quaternary ammonium based ionic liquids can be used as eco-friendly solvents/solubilizers for pesticide formulation processing without organic solvents.
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Affiliation(s)
- Chong Chen
- College of Science
- China Agricultural University
- Beijing 100091
- China
| | - Fengmao Liu
- College of Science
- China Agricultural University
- Beijing 100091
- China
| | - Tengfei Fan
- College of Science
- China Agricultural University
- Beijing 100091
- China
| | - Qizhen Zhou
- College of Science
- China Agricultural University
- Beijing 100091
- China
| | - Qingrong Peng
- College of Science
- China Agricultural University
- Beijing 100091
- China
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39
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Armaković S, Armaković SJ, Vraneš M, Tot A, Gadžurić S. Determination of reactive properties of 1-butyl-3-methylimidazolium taurate ionic liquid employing DFT calculations. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.07.094] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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40
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Singh DK, Cha S, Nam D, Cheong H, Joo SW, Kim D. Raman Spectroscopic Study on Alkyl Chain Conformation in 1-Butyl-3-methylimidazolium Ionic Liquids and their Aqueous Mixtures. Chemphyschem 2016; 17:3040-3046. [DOI: 10.1002/cphc.201600485] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Indexed: 11/08/2022]
Affiliation(s)
| | - Seoncheol Cha
- Department of Physics; Sogang University; Seoul 121-742 Korea
| | - Dahyun Nam
- Department of Physics; Sogang University; Seoul 121-742 Korea
| | - Hyeonsik Cheong
- Department of Physics; Sogang University; Seoul 121-742 Korea
| | - Sang-Woo Joo
- Department of Chemistry; Soongsil University; Seoul 156-743 Korea
| | - Doseok Kim
- Department of Physics; Sogang University; Seoul 121-742 Korea
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41
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Wang A, Zhao Y, Liu X, Chang L, Xuan X. 1,3-Bis(carboxymethyl)imidazolium bis(trifluoromethylsulfonyl)imide organic salt: Synthesis, single crystal structure, vibrational spectra, DFT calculations and physical-chemical properties. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2016.04.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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42
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Si D, Chen K, Yao J, Li H. Structures and Electronic Properties of Lithium Chelate-Based Ionic Liquids. J Phys Chem B 2016; 120:3904-13. [PMID: 27070194 DOI: 10.1021/acs.jpcb.6b00731] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The conformations, electronic properties, and interaction energies of four chelate-based ionic liquids [Li(EA)][Tf2N], [Li(HDA)][Tf2N], [Li(DEA)][Tf2N], and [Li(DOBA)][Tf2N] have been theoretically explored. The reliability of the located conformers has been confirmed via the comparison between the simulated and experimental infrared spectra. Our results show that the N-Li and O-Li coordinate bonds in cation are elongated as the numbers of coordinate heteroatoms of alkanolamine ligands to Li(+) increased. Also the binding energies between Li(+) and ligands are increased and the interaction energies between cations and Tf2N anion are decreased. The cation-anion interaction energies follow the order of [Li(DOBA)][Tf2N] < [Li(HDA)][Tf2N] < [Li(DEA)][Tf2N] < [Li(EA)][Tf2N], which fall within the energetic ranges of conventional ionic liquids. Interestingly, the strongest stabilization orbital interactions in these ionic liquids and their cations revealed by the natural bond orbital analysis lie in the interaction between the lone pair (LP) of the coordinate heteroatoms in ligands or anion as donors and the vacant valence shell nonbonding orbital (LP*) of Li(+) as acceptors, which are very different from that of conventional ionic liquids. Moreover, the charges transferred from cations to anion are quite similar, and the charge of Li(+) is proposed for possibly predicting the order of the interaction energies of ionic liquids in series. The present study allows for the deeper understanding the differences between chelate-based ionic liquids and conventional ionic liquids.
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Affiliation(s)
- Dawei Si
- Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University , Hangzhou 310027, P. R. China
| | - Kexian Chen
- College of Food and Biology Engineering, Zhejiang Gongshang University , Hangzhou, Zhejiang 310018, P. R. China
| | - Jia Yao
- Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University , Hangzhou 310027, P. R. China
| | - Haoran Li
- Department of Chemistry, ZJU-NHU United R&D Center, Zhejiang University , Hangzhou 310027, P. R. China.,State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University , Hangzhou 310027, P. R. China
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43
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Abe H, Aono M, Kiyotani T, Tsuzuki S. Polyiodides in room-temperature ionic liquids. Phys Chem Chem Phys 2016; 18:32337-32344. [DOI: 10.1039/c6cp06846d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Polyiodides, Im−, were formed in room-temperature ionic liquids (RTILs).
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Affiliation(s)
- Hiroshi Abe
- Department of Materials Science and Engineering
- National Defense Academy
- Yokosuka 239-8686
- Japan
| | - Masami Aono
- Department of Materials Science and Engineering
- National Defense Academy
- Yokosuka 239-8686
- Japan
| | | | - Seiji Tsuzuki
- National Institute of Advanced Industrial Science and Technology
- Ibaraki 305-8568
- Japan
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44
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D’Angelo P, Serva A, Aquilanti G, Pascarelli S, Migliorati V. Structural Properties and Aggregation Behavior of 1-Hexyl-3-methylimidazolium Iodide in Aqueous Solutions. J Phys Chem B 2015; 119:14515-26. [DOI: 10.1021/acs.jpcb.5b08739] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Paola D’Angelo
- Dipartimento
di Chimica, Università di Roma “La Sapienza”, P.le
A. Moro 5, 00185 Roma, Italy
| | - Alessandra Serva
- Dipartimento
di Chimica, Università di Roma “La Sapienza”, P.le
A. Moro 5, 00185 Roma, Italy
| | - Giuliana Aquilanti
- Elettra-Sincrotrone Trieste S.C.p.A s.s., 14, km 163.5, I-34149 Basovizza, Trieste, Italy
| | - Sakura Pascarelli
- European Synchrotron Radiation Facility, BP 220, 38043 Grenoble Cedex, France
| | - Valentina Migliorati
- Dipartimento
di Chimica, Università di Roma “La Sapienza”, P.le
A. Moro 5, 00185 Roma, Italy
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45
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Vitucci FM, Palumbo O, Trequattrini F, Brubach JB, Roy P, Meschini I, Croce F, Paolone A. Interaction of 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide with an electrospun PVdF membrane: Temperature dependence of the concentration of the anion conformers. J Chem Phys 2015; 143:094707. [DOI: 10.1063/1.4929986] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- F. M. Vitucci
- CNR-ISC, U.O.S. La Sapienza, Piazzale A. Moro 5, 00185 Roma, Italy
| | - O. Palumbo
- CNR-ISC, U.O.S. La Sapienza, Piazzale A. Moro 5, 00185 Roma, Italy
| | - F. Trequattrini
- Physics Department, Sapienza University of Rome, Piazzale A. Moro 5, 00185 Roma, Italy
| | - J.-B. Brubach
- Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - P. Roy
- Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - I. Meschini
- Pharmacy Department, University “G. d’Annunzio,” Via dei Vestini 31, 66100 Chieti, Italy
| | - F. Croce
- Pharmacy Department, University “G. d’Annunzio,” Via dei Vestini 31, 66100 Chieti, Italy
| | - A. Paolone
- CNR-ISC, U.O.S. La Sapienza, Piazzale A. Moro 5, 00185 Roma, Italy
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46
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Panja SK, Dwivedi N, Noothalapati H, Shigeto S, Sikder AK, Saha A, Sunkari SS, Saha S. Significance of weak interactions in imidazolium picrate ionic liquids: spectroscopic and theoretical studies for molecular level understanding. Phys Chem Chem Phys 2015; 17:18167-77. [PMID: 26102290 DOI: 10.1039/c5cp01944c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The effects of interionic hydrogen bonding and π-π stacking interactions on the physical properties of a new series of picrate anion based ionic liquids (ILs) have been investigated experimentally and theoretically. The existence of aromatic (C2-HO) and aliphatic (C7-HO-N22 and C6-HO-N20) hydrogen bonding and π-π stacking interactions in these ILs has been observed using various spectroscopic techniques. The aromatic and aliphatic C-HO hydrogen bonding interactions are found to have a crucial role in binding the imidazolium cation and picrate anion together. However, the π-π stacking interactions between two successive layers are found to play a decisive role in tight packing in ILs leading to differences in physical properties. The drastic difference in the melting points of the methyl and propyl derivatives (mmimPic and pmimPic respectively) have been found to be primarily due to the difference in the strength and varieties of π-π stacking interactions. While in mmimPic, several different types of π-π stacking interactions between the aromatic rings (such as picrate-picrate, picrate-imidazole and imidazolium-imidazolium cation rings) are observed, only one type of π-π stacking interaction (picrate-picrate rings) is found to exist in the pmimPic IL. NMR spectroscopic studies reveal that the interaction of these ILs with solvent molecules is different and depends on the dielectric constant of the solvent. While an ion solvation model explains the solvation in high dielectric solvents, an ion-pair solvation model is found to be more appropriate for low dielectric constant solvents. The enhanced stability of these investigated picrate ILs compared with that of inorganic picrate salts under high doses of γ radiation clearly indicates the importance of weak interionic interactions in ILs, and also opens up the possibility of the application of picrate ILs as prospective diluents in nuclear separation for advanced fuel cycling process.
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Affiliation(s)
- Sumit Kumar Panja
- Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi-221005, India.
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Zhang H, Hong F, Zhu D, Xia Z, Wu H, Wang H, Zeng Z. Amide as Terminal Groups: Synthesis and Properties as New Tolane-Type Liquid Crystals. CHINESE J CHEM 2015. [DOI: 10.1002/cjoc.201500264] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Affiliation(s)
- Robert Hayes
- Discipline
of Chemistry, The University of Newcastle, NSW 2308, Callaghan, Australia
| | - Gregory G. Warr
- School
of Chemistry, The University of Sydney, NSW 2006, Sydney, Australia
| | - Rob Atkin
- Discipline
of Chemistry, The University of Newcastle, NSW 2308, Callaghan, Australia
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49
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Theoretical studies on the dissolution of chitosan in 1-butyl-3-methylimidazolium acetate ionic liquid. Carbohydr Res 2015; 408:107-13. [PMID: 25868117 DOI: 10.1016/j.carres.2015.02.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Revised: 02/13/2015] [Accepted: 02/20/2015] [Indexed: 11/21/2022]
Abstract
In this work, the dissolution mechanism of chitosan in imidazolium acetic-based ionic liquid (IL) 1-butyl-3-methylimidazolium acetate was investigated by density functional theory (DFT). Chitobiose is considered to symbolize chitosan during the DFT calculations. [Bmim]OAc is supposed to be the best suitable IL among the investigated ILs for the dissolution of chitosan since the complex formed between [Bmim]OAc and chitobiose has the lowest energy. The hydrogen bonds formed by IL and chitobiose were studied by discussing the geometric parameter variations and the vibration mode analyses. Four strong hydrogen-bond patterns C1-H1 ⋯ O16, C2-H2 ⋯ O16, O38-H39 ⋯ O1 and O40-H41 ⋯ O2 were found, which means the existence of strong interaction between chitosan and [Bmim]OAc. In addition, natural bond orbital (NBO) analysis was used to study the second order perturbation stabilization energies (E(2)) that denotes the intensity of the interactions between chitobiose with H2O and ILs. The E(2) of chitobiose with [Bmim]OAc is larger than that of chitobiose with other ILs and solvents studied, which proves that chitobiose can be dissolved in [Bmim]OAc but cannot in water and other solvents. Atom in molecules (AIM) theory shows that hydrogen bonds between chitobiose and [Bmim]OAc are stronger than that between chitobiose and other solvents. It means that the interactions between [Bmim]OAc and chitobiose interrupt the initial hydrogen bonds in the chitobiose due to the formation of new hydrogen bonds in the complexes. The calculation data provide the interaction mechanism of the dissolution of chitosan in [Bmim]OAc.
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50
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Cao L, Huang J, Zhang X, Zhang S, Gao J, Zeng S. Imidazole tailored deep eutectic solvents for CO2 capture enhanced by hydrogen bonds. Phys Chem Chem Phys 2015; 17:27306-16. [DOI: 10.1039/c5cp04050g] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen bonds enhance the CO2 uptake in novel imidazolium tailored deep eutectic solvents.
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Affiliation(s)
- Lingdi Cao
- Beijing Key Laboratory of Ionic Liquids Clean Process
- State Key Laboratory of Multiphase Complex Systems
- Key Laboratory of Green Process and Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
| | - Junhua Huang
- CSIRO Energy Technology
- Clayton South
- Australia
- School of Chemistry
- Monash University
| | - Xiangping Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process
- State Key Laboratory of Multiphase Complex Systems
- Key Laboratory of Green Process and Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
| | - Suojiang Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process
- State Key Laboratory of Multiphase Complex Systems
- Key Laboratory of Green Process and Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
| | - Jubao Gao
- Beijing Key Laboratory of Ionic Liquids Clean Process
- State Key Laboratory of Multiphase Complex Systems
- Key Laboratory of Green Process and Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
| | - Shaojuan Zeng
- Beijing Key Laboratory of Ionic Liquids Clean Process
- State Key Laboratory of Multiphase Complex Systems
- Key Laboratory of Green Process and Engineering
- Institute of Process Engineering
- Chinese Academy of Sciences
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