1
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Tsoutsoura A, He Z, Alexandridis P. Effects of Ionic Liquids on the Cylindrical Self-Assemblies Formed by Poly(ethylene oxide)-Poly(propylene oxide)-Poly(ethylene oxide) Block Copolymers in Water. Polymers (Basel) 2024; 16:349. [PMID: 38337237 DOI: 10.3390/polym16030349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 01/26/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
Aiming at the fundamental understanding of solvent effects in amphiphilic polymer systems, we considered poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO) block copolymers in water mixed with an ionic liquid-ethylammonium nitrate (EAN), 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6), or 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4)-and we investigated the hexagonal lyotropic liquid crystal structures by means of small-angle X-ray scattering (SAXS). At 50% polymer, the hexagonal structure (cylinders of self-assembled block copolymer) was maintained across the solvent mixing ratio. The effects of the ionic liquids were reflected in the characteristic length scales of the hexagonal structure and were interpreted in terms of the location of the ionic liquid in the self-assembled block copolymer domains. The protic ionic liquid EAN was evenly distributed within the aqueous domains and showed no affinity for the interface, whereas BMIMPF6 preferred to swell PEO and was located at the interface so as to reduce contact with water. BMIMBF4 was also interfacially active, but to a lesser extent.
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Affiliation(s)
- Aikaterini Tsoutsoura
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY 14260-4200, USA
| | - Zhiqi He
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY 14260-4200, USA
| | - Paschalis Alexandridis
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY 14260-4200, USA
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2
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Tsoutsoura A, He Z, Alexandridis P. Phase Behavior and Structure of Poloxamer Block Copolymers in Protic and Aprotic Ionic Liquids. Molecules 2023; 28:7434. [PMID: 37959854 PMCID: PMC10650682 DOI: 10.3390/molecules28217434] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/15/2023] Open
Abstract
Ionic liquids are promising media for self-assembling block copolymers in applications such as energy storage. A robust design of block copolymer formulations in ionic liquids requires fundamental knowledge of their self-organization at the nanoscale. To this end, here, we focus on modeling two-component systems comprising a Poly(ethylene oxide)-poly (propylene oxide)-Poly(ethylene oxide) (PEO-PPO-PEO) block copolymer (Pluronic P105: EO37PO58EO37) and room temperature ionic liquids (RTILs): protic ethylammonium nitrate (EAN), aprotic ionic liquids (1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6), or 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4). Rich structural polymorphism was exhibited, including phases of micellar (sphere) cubic, hexagonal (cylinder), bicontinuous cubic, and lamellar (bilayer) lyotropic liquid crystalline (LLC) ordered structures in addition to solution regions. The characteristic scales of the structural lengths were obtained using small-angle X-ray scattering (SAXS) data analysis. On the basis of phase behavior and structure, the effects of the ionic liquid solvent on block copolymer organization were assessed and contrasted to those of molecular solvents, such as water and formamide.
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Affiliation(s)
| | | | - Paschalis Alexandridis
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York (SUNY), Buffalo, NY 14260-4200, USA (Z.H.)
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3
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Insights into the Structure and Dynamics of Imidazolium Ionic Liquid and Tetraethylene Glycol Dimethyl Ether Cosolvent Mixtures: A Molecular Dynamics Approach. NANOMATERIALS 2021; 11:nano11102512. [PMID: 34684952 PMCID: PMC8537253 DOI: 10.3390/nano11102512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 09/12/2021] [Accepted: 09/17/2021] [Indexed: 11/16/2022]
Abstract
In this work, the effect of molecular cosolvents tetraethylene glycol dimethyl ether (TEGDME) on the structure and versatile nature of mixtures of these compounds with imidazolium-based ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]) is analyzed and discussed at a molecular level by means of all-atom molecular dynamics (MD) simulations. In the whole concentration range of the binary mixtures, the structures and properties evolution was studied by means of systematic molecular dynamics simulations of the fraction of hydrogen bonds, the radial and spatial distribution functions for the various molecular ions and molecular species in the system, together with the snapshots visualization of equilibrated simulation boxes with a color-coding scheme and the rotational dynamics of coumarin 153 (C153) in the binary mixtures. The goal of the work is to provide a molecular-level understanding of significant improvement of ionic conductivity and self-diffusion with the presence of TEGDME as a cosolvent, which causes an enhancement to the ion translational motion and fluidity in the [bmim][PF6] ionic liquids (ILs). Under a mixture concentration change, the microstructure changes of [bmim][PF6] with the TEGDME molar fraction (XTEG) above 0.50 show a slight difference from that of neat [bmim][PF6] IL and concentrated [bmim][PF6]/TEGDME mixture in terms of the radial and spatial distribution functions. The relative diffusivities of solvent molecules to cations as a function of concentration were found to depend on the solvent but not on the anion. A TEGDME increase is found to be advantageous to the dissipation of the polar regions as well as the nonpolar regions in the [bmim][PF6] ionic liquids. These conclusions are consistent with the experimental results, which verified that the unique, complex, and versatile nature of [bmim][PF6]/TEGDME mixture can be correctly modeled and discussed at a molecular level using MD simulation data.
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Neves CMSS, Shahriari S, Lemus J, Pereira JFB, Freire MG, Coutinho JAP. Aqueous biphasic systems composed of ionic liquids and polypropylene glycol: insights into their liquid-liquid demixing mechanisms. Phys Chem Chem Phys 2018; 18:20571-20582. [PMID: 27405841 DOI: 10.1039/c6cp04023c] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel ternary phase diagrams of aqueous biphasic systems (ABSs) composed of polypropylene glycol with an average molecular weight of 400 g mol(-1) (PPG-400) and a vast number of ionic liquids (ILs) were determined. The large array of selected ILs allowed us to evaluate their tuneable structural features, namely the effect of the anion nature, cation core and cation alkyl side chain length on the phase behaviour. Additional evidence on the molecular-level mechanisms which rule the phase splitting was obtained by (1)H NMR (Nuclear Magnetic Resonance) spectroscopy and by COSMO-RS (Conductor-like Screening Model for Real Solvents). Some systems, for which the IL-PPG-400 pairs are completely miscible, revealed to be of type "0". All data collected suggest that the formation of PPG-IL-based ABSs is controlled by the interactions established between the IL and PPG, contrarily to previous reports where a "salting-out" phenomenon exerted by the IL over the polymer in aqueous media was proposed as the dominant effect in ABS formation. The influence of temperature on the liquid-liquid demixing was also evaluated. In general, an increase in temperature favours the formation of an ABS in agreement with the lower critical solution temperature (LCST) phase behaviour usually observed in polymer-IL binary mixtures. Partition results of a dye (chloroanilic acid, in its neutral form) further confirm the possibility of tailoring the phases' polarities of IL-PPG-based ABSs.
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Affiliation(s)
- Catarina M S S Neves
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Shahla Shahriari
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.,Department of Chemical Engineering Shahr-e-Qods Branch, Islamic Azad University, Tehran, Iran
| | - Jesus Lemus
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Jorge F B Pereira
- Department of Bioprocess and Biotechnology, School of Pharmaceutical Sciences, UNESP - Univ Estadual Paulista, Rodovia Araraquara-Jaú/Km 01, Campos Ville, 14800-903 Araraquara, SP, Brazil
| | - Mara G Freire
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - João A P Coutinho
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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5
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Kadyan A, Pandey S. Microviscosity Offered by Ionic Liquids and Ionic Liquid–Glycol Mixtures Is Probe Dependent. J Phys Chem B 2017; 121:1081-1091. [DOI: 10.1021/acs.jpcb.6b12122] [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)
- Anu Kadyan
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Siddharth Pandey
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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6
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Moosavi M, Daneshvar A. Synergistic effects and specific molecular interactions in the binary mixtures of [bmim][BF 4 ] and poly (ethylene glycol)s. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.11.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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7
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Das SK, Majhi D, Sahu PK, Sarkar M. Linking Diffusion-Viscosity Decoupling and Jump Dynamics in a Hydroxyl-Functionalized Ionic Liquid: Realization of Microheterogeneous Nature of the Medium. Chemphyschem 2016; 18:198-207. [DOI: 10.1002/cphc.201600983] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 11/08/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Sudhir Kumar Das
- Department of Chemistry Raghunathpur College; Raghunathpur Purulia Pin-723133 India
| | - Debashis Majhi
- School of Chemical Sciences; National Institute of Science Education and Research, HBNI, Bhubaneswar, P.O. Jatni, Khurda; 752050 Odisha India
| | - Prabhat Kumar Sahu
- School of Chemical Sciences; National Institute of Science Education and Research, HBNI, Bhubaneswar, P.O. Jatni, Khurda; 752050 Odisha India
| | - Moloy Sarkar
- School of Chemical Sciences; National Institute of Science Education and Research, HBNI, Bhubaneswar, P.O. Jatni, Khurda; 752050 Odisha India
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8
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McDaniel JG, Choi E, Son CY, Schmidt JR, Yethiraj A. Conformational and Dynamic Properties of Poly(ethylene oxide) in an Ionic Liquid: Development and Implementation of a First-Principles Force Field. J Phys Chem B 2016; 120:231-43. [DOI: 10.1021/acs.jpcb.5b10065] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jesse G. McDaniel
- Department
of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Eunsong Choi
- Department
of Physics, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Chang-Yun Son
- Department
of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - J. R. Schmidt
- Department
of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Arun Yethiraj
- Department
of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
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9
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Kadyan A, Behera K, Pandey S. Hybrid green nonaqueous media: tetraethylene glycol modifies the properties of a (choline chloride + urea) deep eutectic solvent. RSC Adv 2016. [DOI: 10.1039/c6ra03726g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
In mixture of a deep eutectic solvent Reline with tetraethylene glycol, inter-species interactions are stronger than the intra-species interactions.
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Affiliation(s)
- Anu Kadyan
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Kamalakanta Behera
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Siddharth Pandey
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
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10
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Yadav A, Kurur ND, Pandey S. Intramolecular Excimer Formation Dynamics of 1,3-Bis-(1-pyrenyl)propane within 1-Butyl-3-methylimidazolium Hexafluorophosphate and Its Polyethylene Glycol Mixtures. J Phys Chem B 2015; 119:13367-78. [DOI: 10.1021/acs.jpcb.5b07282] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anita Yadav
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Narayanan D. Kurur
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Siddharth Pandey
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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11
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Rather MA, Rather GM, Pandit SA, Bhat SA, Khan KZ, Bhat MA. Ionic Liquids: Additives for Manipulating the Nucleophilicity. J SOLUTION CHEM 2015. [DOI: 10.1007/s10953-015-0356-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Synergistic Effects and Correlating Polarity Parameters in Binary Mixtures of Ionic Liquids. Chemphyschem 2015; 16:1026-34. [DOI: 10.1002/cphc.201402825] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Indexed: 11/07/2022]
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13
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Das SK, Majhi D, Sahu PK, Sarkar M. Investigation of the influence of alkyl side chain length on the fluorescence response of C153 in a series of room temperature ionic liquids. RSC Adv 2015. [DOI: 10.1039/c4ra16864j] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Variation of average solvation time with the product of temperature averaged viscosity and the radius of the cation of different room temperature ionic liquids (RTILs) with varying cationic chain length.
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Affiliation(s)
- Sudhir Kumar Das
- School of Chemical Sciences
- National Institute of Science Education and Research
- Bhubaneswar 751005
- India
| | - Debashis Majhi
- School of Chemical Sciences
- National Institute of Science Education and Research
- Bhubaneswar 751005
- India
| | - Prabhat Kumar Sahu
- School of Chemical Sciences
- National Institute of Science Education and Research
- Bhubaneswar 751005
- India
| | - Moloy Sarkar
- School of Chemical Sciences
- National Institute of Science Education and Research
- Bhubaneswar 751005
- India
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14
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Hu Z, Vatamanu J, Borodin O, Bedrov D. A comparative study of alkylimidazolium room temperature ionic liquids with FSI and TFSI anions near charged electrodes. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.08.072] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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15
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Choi E, Yethiraj A. Conformational Properties of a Polymer in an Ionic Liquid: Computer Simulations and Integral Equation Theory of a Coarse-Grained Model. J Phys Chem B 2014; 119:9091-7. [DOI: 10.1021/jp508876q] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Eunsong Choi
- Department
of Physics, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Arun Yethiraj
- Department
of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
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16
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Affiliation(s)
- Vanderlei G. Machado
- Departamento
de Química, Universidade Federal de Santa Catarina, UFSC, Florianópolis, SC 88040-900, Brazil
| | - Rafaela I. Stock
- Departamento
de Química, Universidade Federal de Santa Catarina, UFSC, Florianópolis, SC 88040-900, Brazil
| | - Christian Reichardt
- Fachbereich
Chemie, Philipps-Universität, Hans-Meerwein-Strasse, 35032 Marburg, Germany
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17
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Rai R, Pandey S. Solvatochromic probe response within ionic liquids and their equimolar mixtures with tetraethylene glycol. J Phys Chem B 2014; 118:11259-70. [PMID: 25162184 DOI: 10.1021/jp504165a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Synergism in a probe response within a mixture hints at the presence of strong interactions involving the solvent constituents of the mixture and possibly the probe. Unusual and rare "hyperpolarity" resulting from the synergism in probe response exhibited by ionic liquid (IL) mixtures with glycol family solvents is investigated in detail for equimolar mixtures of tetraethylene glycol (TEG) with many structurally different ILs using several UV-vis absorbance and fluorescence solvatochromic probes. Thirteen different ILs, of the same cation 1-butyl-3-methylimidazolium and different anions, of the same anion bis(trifluoromethylsulfonyl)imide and different cations, and of C2 methyl-substituted imidazolium cations, are used to assess the structural dependence of the IL on synergism exhibited by (IL + TEG) mixture. Responses from UV-vis absorbance probes are used to obtain ET [dipolarity/polarizability and/or H-bond donating (HBD) acidity] and Kamlet-Taft parameters [π* (dipolarity/polarizability), α (HBD acidity), and β (HB accepting basicity)] within (IL + TEG) mixtures. The band I-to-band III fluorescence intensity ratio of dipolarity probe pyrene along with the lowest energy fluorescence band maxima of pyrene-1-carboxaldehyde (PyCHO, a probe for the permittivity of the medium), coumarin-153 and N,N-dimethyl-6-propionyl-2-naphthylamine PRODAN (neutral photoinduced charge-transfer fluorescence probes), and 6-p-toluidine-2-naphthalenesulfonic acid (TNS) and l-anilinonaphthalene-8-sulfonate (ANS) (ionic photoinduced charge-transfer fluorescence probes) are used to assess whether synergism is exhibited by (IL + TEG) equimolar mixtures. Probe responses within TEG equimolar mixtures with ILs are compared to those with common organic solvents. An attempt is made to establish a correlation between the synergism observed in the probe response within an (IL + TEG) mixture and the structural features of the cation and anion of the IL, such as acidity of the protons of the cation, aromaticity of the cation, and size, shape, and coordinating ability of the anion. It is established that the solvatochromism exhibited by the probes within (IL + TEG) mixtures is due to complex coupling of several different interactions and dynamical processes involving the probe as well as IL and TEG within the mixture.
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Affiliation(s)
- Rewa Rai
- Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi -110016, India
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18
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Jan R, Rather GM, Bhat MA. Effect of Cosolvent on Bulk and Interfacial Characteristics of Imidazolium Based Room Temperature Ionic Liquids. J SOLUTION CHEM 2014. [DOI: 10.1007/s10953-014-0165-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Banerjee C, Ghosh S, Mandal S, Kuchlyan J, Kundu N, Sarkar N. Exploring the photophysics of curcumin in zwitterionic micellar system: an approach to control ESIPT process in the presence of room temperature ionic liquids (RTILs) and anionic surfactant. J Phys Chem B 2014; 118:3669-81. [PMID: 24617495 DOI: 10.1021/jp411778q] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this manuscript, we have modulated the photophysical properties of curcumin in a zwitterionic (N-hexadecyl-N,N-dimethylammonio-1-propanesulfonate (SB-16)) micellar aggregates with addition of room temperature ionic liquids (RTILs) as well as commonly used anionic surfactant (SDS), using steady-state and time-resolved spectroscopic techniques. To modulate the photophysics, first we studied its interaction with an SB-16 micellar system, then to further exploit its photophysics, three RTILs (EmimES, EmimBS, EmimHS) with variation of alkyl chain lengths as well as SDS were used. It is observed that the rate of degradation of curcumin is drastically decreased after partitioning into the zwitterionic micellar system. It is shown that the dynamics of excited state intramolecular proton transfer (ESIPT) processes can be controlled by using those RTILs and SDS. Our study also reveals that the hindrance of nonradiative processes of curcumin, i.e., ESIPT is more pronounced in the case of RTIL containing a long alkyl chain compared to a small one. However, most interestingly the addition of long chain (dodecyl) anionic surfactant (SDS) promotes the ESIPT process of curcumin. We have also studied the effect of the addition of inorganic salt and compared the results with RTILs. The present work demonstrates an effort to decipher the photophysics of curcumin in zwitterionic micellar systems by monitoring its excited state dynamics.
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Affiliation(s)
- Chiranjib Banerjee
- Department of Chemistry, Indian Institute of Technology , Kharagpur 721302, West Bengal, India
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20
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Mondal J, Choi E, Yethiraj A. Atomistic Simulations of Poly(ethylene oxide) in Water and an Ionic Liquid at Room Temperature. Macromolecules 2013. [DOI: 10.1021/ma4016714] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jagannath Mondal
- Department
of Chemistry, Columbia University, 3000 Broadway, New York, New York 10027, United States
| | - Eunsong Choi
- Department
of Physics, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Arun Yethiraj
- Department
of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, United States
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21
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Ali A, Ali M, Malik NA, Uzair S. Unusual solvatochromic absorbance probe behaviour within mixtures of poly(ethylene glycol)-400+ionic liquid, [bmim][Tf2N]. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 121:363-371. [PMID: 24280298 DOI: 10.1016/j.saa.2013.10.121] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 10/24/2013] [Accepted: 10/31/2013] [Indexed: 06/02/2023]
Abstract
The potentially green solvents made up of ionic liquids (ILs) and poly(ethylene glycols) may have wide range of the applications in many chemical and biochemical fields. In the present work, solvatochromic absorbance probe behaviour is used to assess the physicochemical properties of the mixtures composed of PEG-400+IL, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, [bmim][Tf2N]. Lowest energy intramolecular charge-transfer absorbance maxima of a betaine dye, i.e., E(T)(N), indicates the dipolarity/polarizability and/or hydrogen-bond donating (HBD) acidity of the [bmim][Tf2N]+PEG-400 mixtures to be even higher than that of neat [bmim][Tf2N], the solution component with higher dipolarity/polarizability and/or HBD acidity. Dipolarity/polarizability (π(∗)) obtained separately from the electronic absorbance response of probe N,N-diethyl-4-nitroaniline, and the HBD acidity (α) of PEG-400+[bmim][Tf2N] mixtures are also observed to be anomalously high. A comparative study of the PEG+IL mixtures has also been done with PEG-400+molecular organic solvents (protic polar [methanol], aprotic polar [N,N-dimethylformamide], and non polar, [benzene]) mixtures, but these mixtures do not show this type of unusual behaviour. A four-parameter simplified combined nearly ideal binary solvent/Redlich-Kister (CNIBS/R-K) equation is shown to satisfactorily predict the solvatochromic parameters within PEG-400+different solvent mixtures.
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Affiliation(s)
- Anwar Ali
- Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi 110025, India.
| | - Maroof Ali
- Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi 110025, India
| | - Nisar Ahmad Malik
- Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi 110025, India
| | - Sahar Uzair
- Department of Chemistry, Jamia Millia Islamia (Central University), New Delhi 110025, India
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22
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23
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Liu T, Meng Y, Wang X, Wang H, Li X. Unusual strong fluorescence of a hyperbranched phosphate: discovery and explanations. RSC Adv 2013. [DOI: 10.1039/c3ra22680h] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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24
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Li B, Qiu M, Long S, Wang X, Guo Q, Xia A. Unraveling heterogeneous microviscosities of the 1-alkyl-3-methylimidazolium hexafluorophosphate ionic liquids with different chain lengths. Phys Chem Chem Phys 2013; 15:16074-81. [DOI: 10.1039/c3cp52724g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Li B, Wang Y, Wang X, Vdovic S, Guo Q, Xia A. Spectroscopic Evidence for Unusual Microviscosity in Imidazolium Ionic Liquid and Tetraethylene Glycol Dimethyl Ether Cosolvent Mixtures. J Phys Chem B 2012; 116:13272-81. [DOI: 10.1021/jp304914e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Boxuan Li
- The State Key Laboratory of Molecular
Reaction Dynamics, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Beijing National
Laboratory for Molecular Sciences (BNLMS), Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yingying Wang
- The State Key Laboratory of Molecular
Reaction Dynamics, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Beijing National
Laboratory for Molecular Sciences (BNLMS), Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Xuefei Wang
- The State Key Laboratory of Molecular
Reaction Dynamics, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Beijing National
Laboratory for Molecular Sciences (BNLMS), Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Silvije Vdovic
- The State Key Laboratory of Molecular
Reaction Dynamics, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Beijing National
Laboratory for Molecular Sciences (BNLMS), Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Qianjin Guo
- The State Key Laboratory of Molecular
Reaction Dynamics, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Beijing National
Laboratory for Molecular Sciences (BNLMS), Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Andong Xia
- The State Key Laboratory of Molecular
Reaction Dynamics, Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Beijing National
Laboratory for Molecular Sciences (BNLMS), Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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26
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Banerjee C, Mandal S, Ghosh S, Rao VG, Sarkar N. Tuning the Probe Location on Zwitterionic Micellar System with Variation of pH and Addition of Surfactants with Different Alkyl Chains: Solvent and Rotational Relaxation Studies. J Phys Chem B 2012; 116:11313-22. [DOI: 10.1021/jp307045v] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Chiranjib Banerjee
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB,
India
| | - Sarthak Mandal
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB,
India
| | - Surajit Ghosh
- 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
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27
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Pandey S, Baker SN, Pandey S, Baker GA. Fluorescent Probe Studies of Polarity and Solvation within Room Temperature Ionic Liquids: A Review. J Fluoresc 2012; 22:1313-43. [DOI: 10.1007/s10895-012-1073-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Accepted: 05/29/2012] [Indexed: 10/28/2022]
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28
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Mok MM, Thiagarajan R, Flores M, Morse DC, Lodge TP. Apparent Critical Micelle Concentrations in Block Copolymer/Ionic Liquid Solutions: Remarkably Weak Dependence on Solvophobic Block Molecular Weight. Macromolecules 2012. [DOI: 10.1021/ma300399c] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | - Maritza Flores
- Department of Mechanical Engineering, University of Texas Pan American, Edinburg, Texas 78539,
United States
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29
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Trivedi S, Pandey S, Baker SN, Baker GA, Pandey S. Pronounced Hydrogen Bonding Giving Rise to Apparent Probe Hyperpolarity in Ionic Liquid Mixtures with 2,2,2-Trifluoroethanol. J Phys Chem B 2012; 116:1360-9. [DOI: 10.1021/jp210199s] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shruti Trivedi
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New
Delhi −110016, India
| | - Shubha Pandey
- Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri
65211, United States
| | - Sheila N. Baker
- Department
of Chemical Engineering, University of Missouri—Columbia, Columbia, Missouri
65211, United States
| | - Gary A. Baker
- Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri
65211, United States
| | - Siddharth Pandey
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New
Delhi −110016, India
- Department of Chemistry, University of Missouri—Columbia, Columbia, Missouri
65211, United States
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30
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Wu TY, Chen BK, Hao L, Lin YC, Wang HP, Kuo CW, Sun IW. Physicochemical properties of glycine-based ionic liquid [QuatGly-OEt][EtOSO(3)] (2-Ethoxy-1-ethyl-1,1-dimethyl-2-oxoethanaminium ethyl sulfate) and its binary mixtures with poly(ethylene glycol) (M(w) = 200) at various temperatures. Int J Mol Sci 2011; 12:8750-72. [PMID: 22272102 PMCID: PMC3257099 DOI: 10.3390/ijms12128750] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 10/24/2011] [Accepted: 11/16/2011] [Indexed: 11/17/2022] Open
Abstract
This work includes specific basic characterization of synthesized glycine-based Ionic Liquid (IL) [QuatGly-OEt][EtOSO3] by NMR, elementary analysis and water content. Thermophysical properties such as density, ρ, viscosity, η, refractive index, n, and conductivity, κ, for the binary mixture of [QuatGly-OEt][EtOSO3] with poly(ethylene glycol) (PEG) [Mw = 200] are measured over the whole composition range. The temperature dependence of density and dynamic viscosity for neat [QuatGly-OEt][EtOSO3] and its binary mixture can be described by an empirical polynomial equation and by the Vogel-Tammann-Fucher (VTF) equation, respectively. The thermal expansion coefficient of the ILs is ascertained using the experimental density results, and the excess volume expansivity is evaluated. The negative values of excess molar volume for the mixture indicate the ion-dipole interactions and packing between IL and PEG oligomer. The results of binary excess property (VmE ) and deviations (Δη, Δxn, ΔΨn, ΔxR, and ΔΨR) are discussed in terms of molecular interactions and molecular structures in the binary mixture.
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Affiliation(s)
- Tzi-Yi Wu
- Department of Chemistry, National Cheng Kung University, Tainan 70101, Taiwan; E-Mails: (T.-Y.W); (L.H.)
| | - Bor-Kuan Chen
- Department of Materials Engineering, Kun Shan University, Tainan 71003, Taiwan; E-Mail:
| | - Lin Hao
- Department of Chemistry, National Cheng Kung University, Tainan 70101, Taiwan; E-Mails: (T.-Y.W); (L.H.)
| | - Yuan-Chung Lin
- Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; E-Mail:
| | - H. Paul Wang
- Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan; E-Mail:
| | - Chung-Wen Kuo
- Department of Chemical and Materials Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, Taiwan; E-Mail:
| | - I-Wen Sun
- Department of Chemistry, National Cheng Kung University, Tainan 70101, Taiwan; E-Mails: (T.-Y.W); (L.H.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +886-6-2757-575 ext. 65355; Fax: +886-6-2740552
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31
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Trivedi S, Pandey S. Interactions within a [Ionic Liquid + Poly(ethylene glycol)] Mixture Revealed by Temperature-Dependent Synergistic Dynamic Viscosity and Probe-Reported Microviscosity. J Phys Chem B 2011; 115:7405-16. [DOI: 10.1021/jp203079p] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Shruti Trivedi
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
| | - Siddharth Pandey
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
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32
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Pramanik R, Ghatak C, Rao VG, Sarkar S, Sarkar N. Room Temperature Ionic Liquid in Confined Media: A Temperature Dependence Solvation Study in [bmim][BF4]/BHDC/Benzene Reverse Micelles. J Phys Chem B 2011; 115:5971-9. [DOI: 10.1021/jp109088h] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rajib Pramanik
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Chiranjib Ghatak
- 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
| | - Souravi Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
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33
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Fortunato GG, Mancini PM, Bravo MV, Adam CG. New Solvents Designed on the Basis of the Molecular-Microscopic Properties of Binary Mixtures of the Type (Protic Molecular Solvent + 1-Butyl-3-methylimidazolium-Based Ionic Liquid). J Phys Chem B 2010; 114:11804-19. [DOI: 10.1021/jp103677q] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Graciela G. Fortunato
- Departamento de Química, Área Química Orgánica, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, (3000) Santa Fe, República Argentina
| | - Pedro M. Mancini
- Departamento de Química, Área Química Orgánica, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, (3000) Santa Fe, República Argentina
| | - M. Virginia Bravo
- Departamento de Química, Área Química Orgánica, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, (3000) Santa Fe, República Argentina
| | - Claudia G. Adam
- Departamento de Química, Área Química Orgánica, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, (3000) Santa Fe, República Argentina
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34
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Trivedi S, Malek NI, Behera K, Pandey S. Temperature-Dependent Solvatochromic Probe Behavior within Ionic Liquids and (Ionic Liquid + Water) Mixtures. J Phys Chem B 2010; 114:8118-25. [DOI: 10.1021/jp102217u] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Shruti Trivedi
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India, and Applied Chemistry Department, Sardar Vallabhbhai National Institute of Technology (SVNIT), Surat 395007, India
| | - Naved I. Malek
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India, and Applied Chemistry Department, Sardar Vallabhbhai National Institute of Technology (SVNIT), Surat 395007, India
| | - Kamalakanta Behera
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India, and Applied Chemistry Department, Sardar Vallabhbhai National Institute of Technology (SVNIT), Surat 395007, India
| | - Siddharth Pandey
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India, and Applied Chemistry Department, Sardar Vallabhbhai National Institute of Technology (SVNIT), Surat 395007, India
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35
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Zhang S, Qi X, Ma X, Lu L, Deng Y. Hydroxyl Ionic Liquids: The Differentiating Effect of Hydroxyl on Polarity due to Ionic Hydrogen Bonds between Hydroxyl and Anions. J Phys Chem B 2010; 114:3912-20. [DOI: 10.1021/jp911430t] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Shiguo Zhang
- Center for Green Chemistry and Catalysis, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China and Graduate School of Chinese Academy of Science, Beijing, 100039, China
| | - Xiujuan Qi
- Center for Green Chemistry and Catalysis, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China and Graduate School of Chinese Academy of Science, Beijing, 100039, China
| | - Xiangyuan Ma
- Center for Green Chemistry and Catalysis, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China and Graduate School of Chinese Academy of Science, Beijing, 100039, China
| | - Liujin Lu
- Center for Green Chemistry and Catalysis, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China and Graduate School of Chinese Academy of Science, Beijing, 100039, China
| | - Youquan Deng
- Center for Green Chemistry and Catalysis, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China and Graduate School of Chinese Academy of Science, Beijing, 100039, China
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36
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Pramanik R, Sarkar S, Ghatak C, Setua P, Sarkar N. Effect of polymer, poly(ethylene glycol)(PEG-400), on solvent and rotational relaxation of coumarin-480 in an ionic liquid containing microemulsions. Phys Chem Chem Phys 2010; 12:3878-86. [DOI: 10.1039/b922867e] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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