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Assessing the impact of increase in the number of hydroxyl groups on the microscopic behaviors of ammonium-based room temperature ionic liquids: A combined fluorescence up-conversion, fluorescence correlation and NMR spectroscopic study. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Barik S, Chakraborty M, Mahapatra A, Sarkar M. Choline chloride and ethylene glycol based deep eutectic solvent (DES) versus hydroxyl functionalized room temperature ionic liquids (RTILs): assessing the differences in microscopic behaviour between the DES and RTILs. Phys Chem Chem Phys 2022; 24:7093-7106. [PMID: 35262105 DOI: 10.1039/d1cp05010a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
With the aim of understanding the differences in the behavior of deep eutectic solvents (DESs) and room temperature ionic liquids (RTILs) in terms of their structure, dynamics, and intra- and intermolecular interactions, three different ILs and one DES having similar functionalities (hydroxyl) have been investigated by using both ensembled average and single-molecule spectroscopic techniques. Specifically, for this purpose, a choline chloride based DES (ethaline) and three hydroxyl functionalized ILs (1-(2-hydroxyethyl)-3-imidazolium bis(trifluoromethanesulfonyl)imide ([OHEMIM][NTF2]), N-(2-hydroxyl ethyl)-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide ([OHEMPy][NTf2]), and N-(2-hydroxyethyl)-N,N-dimethylpropan-1-aminium bis(trifluoromethanesulfonyl)imide ([OHC3CH][NTf2])) are employed and investigated by EPR, time-resolved fluorescence, NMR and FCS studies. Estimation of polarity through EPR spectroscopy has revealed that the hydroxyl ILs employed in these studies are hyper-polar (close to water) in nature, whereas the polarity of the DES is found to be close to those of aliphatic polyhydroxy-alcohols. Interestingly, both time-resolved fluorescence anisotropy and FCS studies on these systems have suggested that the hydroxyl ILs are more dynamically heterogeneous than the DES. More interestingly, PFG-NMR measurements have indicated that the fluid structure of ethaline is relatively more associated as compared to those of the ILs despite the fact that all the cations have the same hydroxyl functionalities. All these investigations have essentially demonstrated that, despite having similar functionalities, both the DES and hydroxyl ILs employed in the present study exhibit microscopic behaviours that are significantly different from each other, indicating the interplay of various intermolecular interactions within the constituent species in governing the behaviours of these solvent systems.
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Affiliation(s)
- Sahadev Barik
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Jatni, Khurda, Bhubaneswar, 752050, Odisha, India. .,Centre of Interdisciplinary Science (CIS), NISER, Bhubaneswar, Jatni, Khurda, 752050, Odisha, India
| | - Manjari Chakraborty
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Jatni, Khurda, Bhubaneswar, 752050, Odisha, India. .,Centre of Interdisciplinary Science (CIS), NISER, Bhubaneswar, Jatni, Khurda, 752050, Odisha, India
| | - Amita Mahapatra
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Jatni, Khurda, Bhubaneswar, 752050, Odisha, India. .,Centre of Interdisciplinary Science (CIS), NISER, Bhubaneswar, Jatni, Khurda, 752050, Odisha, India
| | - Moloy Sarkar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Jatni, Khurda, Bhubaneswar, 752050, Odisha, India. .,Centre of Interdisciplinary Science (CIS), NISER, Bhubaneswar, Jatni, Khurda, 752050, Odisha, India
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Chakraborty M, Ahmed T, Sarkar M. Understanding the Behavior of Monocationic and Dicationic Room-Temperature Ionic Liquids through Resonance Energy-Transfer Studies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:16172-16184. [PMID: 31721590 DOI: 10.1021/acs.langmuir.9b02776] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The present work has been undertaken with an objective to understand the differences in the local structural organization of imidazolium-based monocationic ionic liquids (MILs) and dicationic ionic liquids (DILs) through resonance energy-transfer (RET) studies. In this study, a neat IL is used as a donor and a charged species rhodamine 6G (R6G) is used as an acceptor unit because of the fact that they satisfy the spectroscopic criteria that are needed for an RET event to take place. Additionally, R6G, being a charged species, is expected to facilitate the electrostatic interactions with the ILs which are also charged. Specifically, two imidazolium-based germinal DILs and their monocationic counterparts are used for the present investigations. Additionally, the studies are carried out in some selected MILs where the lengths of the alkyl side chains are kept unchanged for MILs and DILs. Interestingly, the present data reveal that the RET interaction is more favorable for DILs than for MILs, even though the DILs are relatively bulkier than their monocationic counterparts. More interestingly, the RET interaction is also found to be more favorable for DILs than for MILs, where the length of the alkyl group is kept fixed for MILs and DILs. The result of the present study delineates that the alkyl chain length on the cation is not the sole factor contributing to the RET outcomes for DILs and MILs but the local structure of DILs also contributes significantly to the same. The current investigation clearly indicates that DILs have a more compact local structure than that of MILs. Essentially, the current study highlights that a cost-effective, noninvasive technique such as RET is quite effective in capturing the differences in the nanostructural organization of MILs and DILs.
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Affiliation(s)
- Manjari Chakraborty
- School of Chemical Sciences , National Institute of Science Education and Research , HBNI, Bhimpur-Padanpur , Jatani, Khordha, 752050 Bhubaneswar , Odisha , India
| | - Tasnim Ahmed
- Department of Chemistry , University of Hyderabad , Hyderabad 500046 , India
| | - Moloy Sarkar
- School of Chemical Sciences , National Institute of Science Education and Research , HBNI, Bhimpur-Padanpur , Jatani, Khordha, 752050 Bhubaneswar , Odisha , India
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Kowsari MH, Ebrahimi S. Capturing the effect of [PF3(C2F5)3]−vs. [PF6]−, flexible anion vs. rigid, and scaled charge vs. unit on the transport properties of [bmim]+-based ionic liquids: a comparative MD study. Phys Chem Chem Phys 2018; 20:13379-13393. [DOI: 10.1039/c8cp01700j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Effect of [PF3(C2F5)3]−vs. [PF6]−, flexible anion vs. rigid, and scaled charge vs. unit on the transport properties of ILs.
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Affiliation(s)
- Mohammad H. Kowsari
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
- Center for Research in Climate Change and Global Warming (CRCC)
| | - Soraya Ebrahimi
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
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Jha G, Sahu PK, Panda S, Singh DV, Patole S, Mohapatra H, Sarkar M. Synthesis, Photophysical Studies on Some Anthracene–based Ionic Liquids and their Application as Biofilm Formation Inhibitor. ChemistrySelect 2017. [DOI: 10.1002/slct.201601964] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Gaurav Jha
- School of Chemical SciencesNational Institute of Science Education and Research HBNI Bhubaneswar 751005 India
| | - Prabhat Kumar Sahu
- School of Chemical SciencesNational Institute of Science Education and Research HBNI Bhubaneswar 751005 India
| | - Sasmita Panda
- Institute of Life Sciences Nalco Square Bhubaneswar- 751023 India
| | - Durg V. Singh
- Institute of Life Sciences Nalco Square Bhubaneswar- 751023 India
| | - Shashank Patole
- School of Biological SciencesNational Institute of Science Education and Research Bhubaneswar 751005 India
| | - Harapriya Mohapatra
- School of Biological SciencesNational Institute of Science Education and Research Bhubaneswar 751005 India
| | - Moloy Sarkar
- School of Chemical SciencesNational Institute of Science Education and Research HBNI Bhubaneswar 751005 India
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Majhi D, Sarkar M. Probing the microscopic structural organization of neat ionic liquids (ILs) and ionic liquid-based gels through resonance energy transfer (RET) studies. Phys Chem Chem Phys 2017; 19:23194-23203. [DOI: 10.1039/c7cp04728b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With the aim to understand the role of the ionic constituents of ionic liquids (ILs) in their structural organization, resonance energy transfer (RET) studies between ionic liquids (donor) and rhodamine 6G (acceptor) have been investigated.
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Affiliation(s)
- Debashis Majhi
- School of Chemical Sciences
- National Institute of Science Education and Research
- HBNI
- Bhubaneswar
- India
| | - Moloy Sarkar
- School of Chemical Sciences
- National Institute of Science Education and Research
- HBNI
- Bhubaneswar
- India
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Majhi D, Pabbathi A, Sarkar M. Probing the Aggregation Behavior of Neat Imidazolium-Based Alkyl Sulfate (Alkyl = Ethyl, Butyl, Hexyl, and Octyl) Ionic Liquids through Time Resolved Florescence Anisotropy and NMR and Fluorescence Correlation Spectroscopy Study. J Phys Chem B 2015; 120:193-205. [DOI: 10.1021/acs.jpcb.5b10137] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Debashis Majhi
- School
of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar, Orissa 751005, India
| | - Ashok Pabbathi
- Department
of Chemistry, University of Hyderabad, Hyderabad, Telangana 500046, India
| | - Moloy Sarkar
- School
of Chemical Sciences, National Institute of Science Education and Research, Bhubaneswar, Orissa 751005, India
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Yasaka Y, Kimura Y. Polarity and Nonpolarity of Ionic Liquids Viewed from the Rotational Dynamics of Carbon Monoxide. J Phys Chem B 2015; 119:15493-501. [DOI: 10.1021/acs.jpcb.5b09745] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Y. Yasaka
- Department of Molecular Chemistry
and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Y. Kimura
- Department of Molecular Chemistry
and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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Zhang Y, Otani A, Maginn EJ. Reliable Viscosity Calculation from Equilibrium Molecular Dynamics Simulations: A Time Decomposition Method. J Chem Theory Comput 2015; 11:3537-46. [DOI: 10.1021/acs.jctc.5b00351] [Citation(s) in RCA: 181] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yong Zhang
- Department of Chemical and
Biomolecular Engineering and the Joint Center for Energy Storage Research, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Akihito Otani
- Department of Chemical and
Biomolecular Engineering and the Joint Center for Energy Storage Research, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Edward J. Maginn
- Department of Chemical and
Biomolecular Engineering and the Joint Center for Energy Storage Research, University of Notre Dame, Notre Dame, Indiana 46556, United States
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