51
|
Suda K, Terazima M, Kimura Y. Anomalous ground-state proton transfer of 4′-N,N-diethylamino-3-hydroxyflavone in ionic liquids of imidazolium-based cations with tetrafluoroborate. Chem Commun (Camb) 2013; 49:3976-8. [DOI: 10.1039/c3cc40943k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
52
|
Kimura H, Yasaka Y, Nakahara M, Matubayasi N. Nuclear magnetic resonance study on rotational dynamics of water and benzene in a series of ionic liquids: Anion and cation effects. J Chem Phys 2012. [DOI: 10.1063/1.4766258] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
53
|
Shirota H, Biswas R. Intermolecular/Interionic Vibrations of 1-Methyl-3-n-octylimidazolium Tetrafluoroborate Ionic Liquid and H2O Mixtures. J Phys Chem B 2012; 116:13765-73. [DOI: 10.1021/jp307436t] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hideaki Shirota
- Department of Nanomaterial Science & Department of Chemistry, Chiba University, 1-33 Yayoi, Inage-ku, Chiba 263-8522, Japan
| | - Ranjit Biswas
- Chemical, Biological and Macromolecular
Sciences, S. N. Bose National Centre for Basic Sciences, J. D. Block, Sec.III, Salt Lake, Kolkata 700 098, West Bengal,
India
| |
Collapse
|
54
|
Takekiyo T, Yamazaki K, Yamaguchi E, Abe H, Yoshimura Y. High Ionic Liquid Concentration-Induced Structural Change of Protein in Aqueous Solution: A Case Study of Lysozyme. J Phys Chem B 2012; 116:11092-7. [DOI: 10.1021/jp3057064] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takahiro Takekiyo
- Department
of Applied Chemistry, and ‡Department of Materials Science and Engineering, National Defense Academy, 1-10-20, Hashirimizu,
Yokosuka, Japan 239-8686
| | - Kumiko Yamazaki
- Department
of Applied Chemistry, and ‡Department of Materials Science and Engineering, National Defense Academy, 1-10-20, Hashirimizu,
Yokosuka, Japan 239-8686
| | - Erika Yamaguchi
- Department
of Applied Chemistry, and ‡Department of Materials Science and Engineering, National Defense Academy, 1-10-20, Hashirimizu,
Yokosuka, Japan 239-8686
| | - Hiroshi Abe
- Department
of Applied Chemistry, and ‡Department of Materials Science and Engineering, National Defense Academy, 1-10-20, Hashirimizu,
Yokosuka, Japan 239-8686
| | - Yukihiro Yoshimura
- Department
of Applied Chemistry, and ‡Department of Materials Science and Engineering, National Defense Academy, 1-10-20, Hashirimizu,
Yokosuka, Japan 239-8686
| |
Collapse
|
55
|
MacMillan AC, McIntire TM, Freites JA, Tobias DJ, Nizkorodov SA. Interaction of Water Vapor with the Surfaces of Imidazolium-Based Ionic Liquid Nanoparticles and Thin Films. J Phys Chem B 2012; 116:11255-65. [DOI: 10.1021/jp305029n] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Amanda C. MacMillan
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United
States
| | - Theresa M. McIntire
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United
States
| | - J. Alfredo Freites
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United
States
| | - Douglas J. Tobias
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United
States
| | - Sergey A. Nizkorodov
- Department of Chemistry, University of California, Irvine, Irvine, California 92697-2025, United
States
| |
Collapse
|
56
|
Ghosh S, Mandal S, Banerjee C, Rao VG, Sarkar N. Photophysics of 3,3′-Diethyloxadicarbocyanine Iodide (DODCI) in Ionic Liquid Micelle and Binary Mixtures of Ionic Liquids: Effect of Confinement and Viscosity on Photoisomerization Rate. J Phys Chem B 2012; 116:9482-91. [DOI: 10.1021/jp305095n] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Surajit Ghosh
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Sarthak Mandal
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Chiranjib Banerjee
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Vishal Govind Rao
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| |
Collapse
|
57
|
Kumar Das S, Sarkar M. Studies on the Solvation Dynamics of Coumarin 153 in 1-Ethyl-3-Methylimidazolium Alkylsulfate Ionic Liquids: Dependence on Alkyl Chain Length. Chemphyschem 2012; 13:2761-8. [DOI: 10.1002/cphc.201200185] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Revised: 04/18/2012] [Indexed: 11/09/2022]
|
58
|
Zhao SF, Lu JX, Bond AM, Zhang J. Remarkable sensitivity of the electrochemical reduction of benzophenone to proton availability in ionic liquids. Chemistry 2012; 18:5290-301. [PMID: 22422606 DOI: 10.1002/chem.201103365] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Indexed: 11/07/2022]
Abstract
The reduction of benzophenone was investigated in five different ionic liquids by using transient cyclic voltammetry, near steady-state voltammetry, and numerical simulation. Two reversible, well-resolved one-electron-reduction processes were observed in dry (≤20 ppm water, ca. 1 mM)) 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ([Bmpyrd][NTf(2)]) and 1-butyl-1-methylpiperidinium bis(trifluoromethylsulfonyl)imide ([Bmpipd][NTf(2)]), which did not contain any readily available proton source. Upon addition of water, the second process became chemically irreversible and shifted to a more positive potential by approximately 600 mV; moreover, the two reduction processes merged into a single two-electron proton-coupled process when about 0.6 M H(2)O was present. This large dependence of potential on water content, which was not observed in molecular solvents (electrolyte), was explained by a reaction mechanism that incorporated protonation and hydrogen-bonding interactions of the benzophenone dianion with as many as seven water molecules. In the three imidazolium-based ionic liquids used herein, the first benzophenone-reduction process was again reversible, whilst the second reduction process became chemically irreversible owing to the availability of the C2-H imidazolium protons in these ionic liquids. The reversible potentials for benzophenone reduction were remarkably independent of the identity of the ionic liquids, thereby implying either weak interactions with the ionic liquids or relatively insignificant differences in the levels of ion-pairing. Thus, the magnitude of the separation of the potentials of the reversible first and irreversible second reduction processes mainly reflected the proton availability from either the ionic liquid itself or from adventitious water. Consequently, voltammetric reduction of benzophenone provides a sensitive tool for the determination of proton availability in ionic liquids.
Collapse
Affiliation(s)
- Shu-Feng Zhao
- School of Chemistry, Monash University, Clayton, Victoria, 3800 Australia
| | | | | | | |
Collapse
|
59
|
Zhong X, Fan Z, Liu Z, Cao D. Local Structure Evolution and its Connection to Thermodynamic and Transport Properties of 1-Butyl-3-methylimidazolium Tetrafluoroborate and Water Mixtures by Molecular Dynamics Simulations. J Phys Chem B 2012; 116:3249-63. [DOI: 10.1021/jp3001543] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiujuan Zhong
- Division of Molecular and Materials Simulation, State Key
Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhen Fan
- Division of Molecular and Materials Simulation, State Key
Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhiping Liu
- Division of Molecular and Materials Simulation, State Key
Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dapeng Cao
- Division of Molecular and Materials Simulation, State Key
Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| |
Collapse
|
60
|
Rao VG, Ghosh S, Ghatak C, Mandal S, Brahmachari U, Sarkar N. Designing a New Strategy for the Formation of IL-in-Oil Microemulsions. J Phys Chem B 2012; 116:2850-5. [DOI: 10.1021/jp2110488] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Vishal Govind Rao
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Surajit Ghosh
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Chiranjib Ghatak
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Sarthak Mandal
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Udita Brahmachari
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| |
Collapse
|
61
|
Zhang S, Chen Z, Qi X, Deng Y. Distinct influence of the anion and ether group on the polarity of ammonium and imidazolium ionic liquids. NEW J CHEM 2012. [DOI: 10.1039/c2nj20965a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
62
|
Maiti A, Kumar A, Rogers RD. Water-clustering in hygroscopic ionic liquids—an implicit solvent analysis. Phys Chem Chem Phys 2012; 14:5139-46. [DOI: 10.1039/c2cp00010e] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
63
|
Pasilis SP, Blumenfeld A. Effect of Nitrate, Perchlorate, and Water on Uranyl(VI) Speciation in a Room-Temperature Ionic Liquid: A Spectroscopic Investigation. Inorg Chem 2011; 50:8302-7. [DOI: 10.1021/ic2008232] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sofie P. Pasilis
- Department of Chemistry, University of Idaho, Moscow, Idaho, United States
| | | |
Collapse
|
64
|
Daschakraborty S, Ranjit B. Stokes Shift Dynamics in (Ionic Liquid + Polar Solvent) Binary Mixtures: Composition Dependence. J Phys Chem B 2011; 115:4011-24. [DOI: 10.1021/jp200407m] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Snehasis Daschakraborty
- Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake, Kolkata 700098, India
| | - Biswas Ranjit
- Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, JD Block, Sector III, Salt Lake, Kolkata 700098, India
| |
Collapse
|
65
|
Maiti A, Rogers RD. A correlation-based predictor for pair-association in ionic liquids. Phys Chem Chem Phys 2011; 13:12138-45. [DOI: 10.1039/c1cp21018a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|