1
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Bech Risum A, Hinrich JL, Rinnan Å. Multiway Decomposition Followed by Reconvolution of Fluorescence Time Decay Data. Anal Chem 2023; 95:18697-18708. [PMID: 38081791 DOI: 10.1021/acs.analchem.3c00634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
The use of time-resolved emission spectroscopy (TRES) is increasing as these instruments become more available, and the prices are decreasing, especially with the development of cheaper LED light sources. In this article, we propose a new methodology for analyzing TRES data. It combines two existing methods: PARAFAC and reconvolution. PARAFAC is a soft modeling curve resolution technique which has been extensively applied to steady-state fluorescence data, and reconvolution is the most common method for fitting TRES data. The proposed method is compared to two well-established methods of analyzing these data, namely, global reconvolution and tail fitting. In addition, we compare our approach with the SLICING method proposed in 2021 by Devos et al. which is also based on a soft model, but does not include the reconvolution step. All of these methods follow the assumption that the measured fluorescence signal is a linear combination of the underlying fluorophores. The comparison is based on a measured TRES data set with a mixture of three fluorophores and two sets of simulated data sets with up to four fluorophores. The results show that global fitting works well as long as the signal-to-noise ratio (SNR) is high (more than 15 dB), independent of the spacing between the emission peak maxima. SLICING does not give as good estimates of the time decay, mainly due to the challenge of defining the tail. Our proposed method gives robust and accurate results, outperforming the other techniques in cases with broad instrument response functions and high noise levels with SNRs down to 5 dB.
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Affiliation(s)
- Anne Bech Risum
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark
| | - Jesper Løve Hinrich
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark
| | - Åsmund Rinnan
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, DK-1958 Frederiksberg C, Denmark
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2
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Kim HJ. Spectroscopic and Chemical Properties of Ionic Liquids: Computational Study. CHEM REC 2023; 23:e202300075. [PMID: 37166396 DOI: 10.1002/tcr.202300075] [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: 02/27/2023] [Revised: 04/18/2023] [Indexed: 05/12/2023]
Abstract
A brief account is given of highlights of our computational efforts - often in collaboration with experimental groups - to understand spectroscopic and chemical properties of ionic liquids (ILs). Molecular dynamics, including their inhomogeneous character, responsible for key spectral features observed in dielectric absorption, infra-red (IR) and fluorescence correlation spectroscopy (FCS) measurements are elucidated. Mechanisms of chemical processes involving imidazolium-based ILs are illustrated for CO2 capture and related reactions, transesterification of cellulose, and Au nanocluster-catalyzed Suzuki cross-coupling reaction with attention paid to differing roles of IL ions. A comparison with experiments is also made.
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Affiliation(s)
- Hyung J Kim
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213, USA
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3
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Aggrawal R, Halder S, Dyagala S, Saha SK. Role of Dual Nature of Ionic Liquid in Solvation Dynamics and Rotational Diffusion in Mixed Micelles: A Time‐Resolved Fluorescence and Fluorescence Anisotropy Study. ChemistrySelect 2023. [DOI: 10.1002/slct.202204360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Affiliation(s)
- Rishika Aggrawal
- Department of Chemistry Birla Institute of Technology & Science (BITS) Pilani Hyderabad Campus Telangana 500078 INDIA
| | - Sayantan Halder
- Department of Chemistry Birla Institute of Technology & Science (BITS) Pilani Hyderabad Campus Telangana 500078 INDIA
| | - Shalini Dyagala
- Department of Chemistry Birla Institute of Technology & Science (BITS) Pilani Hyderabad Campus Telangana 500078 INDIA
| | - Subit Kumar Saha
- Department of Chemistry Birla Institute of Technology & Science (BITS) Pilani Hyderabad Campus Telangana 500078 INDIA
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4
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Fujii K, Nakano H, Sato H, Kimura Y. Experimental observation of the unique solvation process along multiple solvation coordinates of photodissociated products. Phys Chem Chem Phys 2021; 23:4569-4579. [PMID: 33616585 DOI: 10.1039/d0cp06588a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chemical reaction dynamics in solution are closely related to solvation dynamics, and understanding solvent responses remains a crucial issue in chemistry and chemical biology. In this study, we experimentally and computationally investigated the solvation dynamics along different solvation coordinates of the same molecule: the electronically excited state and ground state of the p-aminophenylthiyl radical generated by the photodissociation of bis(p-aminophenyl)disulfide. Time profiles of the peak shifts from the transient absorption and emission spectra after photodissociation were extracted to discuss the solvent reorganization process in various ionic liquids (ILs) with different viscosities. The absorption peak position of the radical followed common solvation dynamics, shifting to a lower energy with time due to reorganization of the surrounding solvent molecules in response to the charge redistribution and molecular volume change caused by photodissociation. On the other hand, the emission band of the radical did not show a meaningful spectral shift with time. It was also found that the solvation time in the ground state was not strongly dependent on the solvent viscosity. These experimental results deviate from the conventional dynamic Stokes shift theory. To discuss the experimental results, non-equilibrium molecular dynamics simulations were conducted. The spectral shift obtained by MD simulations indicated the existence of a large solvation energy change and solvation dynamics around the radical after the photodissociation. On the other hand, the electronic excitation of the radical brought about a relatively smaller solvation energy change, especially at the long delay time after the photodissociation. These differences might be one of the reasons for the unique experimentally observed solvation dynamics.
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Affiliation(s)
- Kaori Fujii
- Department of Applied Chemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan.
| | - Hiroshi Nakano
- Department of Molecular Engineering, Kyoto University, Kyoto Daigaku Katsura, Kyoto 615-8510, Japan
| | - Hirofumi Sato
- Department of Molecular Engineering, Kyoto University, Kyoto Daigaku Katsura, Kyoto 615-8510, Japan
| | - Yoshifumi Kimura
- Department of Applied Chemistry, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan.
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5
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Beckwith JS, Rumble CA, Vauthey E. Data analysis in transient electronic spectroscopy – an experimentalist's view. INT REV PHYS CHEM 2020. [DOI: 10.1080/0144235x.2020.1757942] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Joseph S. Beckwith
- Department of Physical Chemistry, University of Geneva, Geneva, Switzerland
| | | | - Eric Vauthey
- Department of Physical Chemistry, University of Geneva, Geneva, Switzerland
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6
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The diffusion, structural relaxation, and fragility of [VIO2+][Tf2N−]2 ionic liquid. J Mol Model 2020; 26:55. [DOI: 10.1007/s00894-020-4317-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 01/31/2020] [Indexed: 10/25/2022]
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7
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Lin W, Zhuang C, Hu X, Zhang J, Wang J. Alcohol Participates in the Synthesis of Functionalized Coumarin-Fused Pyrazolo[3,4- b]Pyridine from a One-Pot Three-Component Reaction. Molecules 2019; 24:molecules24152835. [PMID: 31382711 PMCID: PMC6696490 DOI: 10.3390/molecules24152835] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/01/2019] [Accepted: 08/02/2019] [Indexed: 11/16/2022] Open
Abstract
A concise and efficient approach to synthesizing coumarin-fused pyrazolo[3,4-b]pyridine via silica sulfuric acid (SSA) catalyzed three-component domino reaction under microwave irradiation has been demonstrated. Participation of various alcohols in construction of coumarin derivatives has been described for the first time. Short reaction time, high yields, one-pot procedure, usage of eco-friendly catalyst, and solvent are the key features of this method.
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Affiliation(s)
- Wei Lin
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China.
| | - Cangwei Zhuang
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China
| | - Xiuxiu Hu
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China
| | - Juanjuan Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing 210093, China
| | - Juxian Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China.
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8
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Hunger J, Roy S, Grechko M, Bonn M. Dynamics of Dicyanamide in Ionic Liquids is Dominated by Local Interactions. J Phys Chem B 2019; 123:1831-1839. [PMID: 30717596 PMCID: PMC6398149 DOI: 10.1021/acs.jpcb.8b10849] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
![]()
The
dynamics of probe molecules is commonly used to investigate
the structural dynamics of room-temperature ionic liquids; however,
the extent to which this dynamics reflects the dynamics of the ionic
liquids or is probe specific has remained debated. Here, we explore
to what extent the vibrational and rotational dynamics of the dicyanamide
anion, a common ionic liquid anion, correlates with the structural
relaxation of ionic liquids. We use polarization-resolved, ultrafast
infrared spectroscopy to probe the temperature- and probe-concentration-dependent
dynamics of samples with small amounts of 1-ethyl-3-methylimidazolium
([emim]+) dicyanamide ([DCA]−) dissolved
in four [emim]+-based ionic liquids with tetrafluoroborate
([BF4]−), bis(trifluoromethylsulfonyl)imide
([NTf2]−), ethylsufate ([EtSO4]−), and triflate ([OTf]−) as
anions. The transient spectra after broad-band excitation at 2000–2300
cm–1, resonant with the symmetric and antisymmetric
C≡N stretching vibrations, initially contain oscillatory signatures
due to the vibrational coherence between both modes. Vibrational population
relaxation occurs on two distinct time scales, ∼6–7
and ∼15–20 ps. The vibrational dynamics is rather insensitive
to the details of the ionic liquid anion and temperature, except for
the slow vibrational relaxation component. The decay of the excitation
anisotropy, a measure of the rotational dynamics of [DCA]−, markedly depends on temperature, and the obtained decay time exhibits
an activation energy of ∼15–21 kJ/mol. Remarkably, neither
the rotation time nor the activation energy can be simply explained
by the variation of the macroscopic viscosity. Hence, our results
suggest that the dynamics of dicyanamide is only in part representative
of the ionic liquid structural dynamics. Rather, the dynamics of the
probe anion seems to be determined by the specific interaction of
[DCA]− with the ionic liquid’s ions for the
class of [emim]+-based ionic liquids studied here.
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Affiliation(s)
- Johannes Hunger
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - Soham Roy
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany.,Graduate School Materials Science in Mainz , Staudingerweg 9 , 55128 Mainz , Germany
| | - Maksim Grechko
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - Mischa Bonn
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
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9
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Dutta R, Jana G, Mondal D, Pyne A, Sil S, Chattaraj PK, Sarkar N. The role of viscosity in various dynamical processes of different fluorophores in ionic liquid–cosolvent mixtures: a femtosecond fluorescence upconversion study. Photochem Photobiol Sci 2019; 18:1359-1372. [DOI: 10.1039/c9pp00045c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Literature reports provide ample evidence of the dynamical studies of various fluorophores in different room-temperature ionic liquid (RTIL)–cosolvent mixtures.
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Affiliation(s)
- Rupam Dutta
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - Gourhari Jana
- Department of Chemistry and Center for Theoretical Studies
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - Dipankar Mondal
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - Arghajit Pyne
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - Sourav Sil
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - Pratim K. Chattaraj
- Department of Chemistry and Center for Theoretical Studies
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - Nilmoni Sarkar
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
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10
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Effect of external static electric fields on the dynamic heterogeneity of ionic liquids. J Mol Model 2018; 24:240. [DOI: 10.1007/s00894-018-3773-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 08/01/2018] [Indexed: 11/26/2022]
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11
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Terranova ZL, Corcelli SA. Decompositions of Solvent Response Functions in Ionic Liquids: A Direct Comparison of Equilibrium and Nonequilibrium Methodologies. J Phys Chem B 2018; 122:6823-6828. [DOI: 10.1021/acs.jpcb.8b04235] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Z. L. Terranova
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - S. A. Corcelli
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
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12
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Liu J, Willcox JAL, Kim HJ. Heterogeneous dynamics of ionic liquids: A four-point time correlation function approach. J Chem Phys 2018; 148:193830. [DOI: 10.1063/1.5016501] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Jiannan Liu
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave., Pittsburgh, Pennsylvania 15213, USA
| | - Jon A. L. Willcox
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave., Pittsburgh, Pennsylvania 15213, USA
| | - Hyung J. Kim
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Ave., Pittsburgh, Pennsylvania 15213, USA
- School of Computational Sciences, Korea Institute for Advanced Study, Seoul 02455, South Korea
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13
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Khanapurmath N, Kulkarni MV, Pallavi L, Yenagi J, Tonannavar J. Solvatochromic studies on 4-Bromomethyl-7-methyl coumarins. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.01.070] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Nançoz C, Licari G, Beckwith JS, Soederberg M, Dereka B, Rosspeintner A, Yushchenko O, Letrun R, Richert S, Lang B, Vauthey E. Influence of the hydrogen-bond interactions on the excited-state dynamics of a push–pull azobenzene dye: the case of Methyl Orange. Phys Chem Chem Phys 2018; 20:7254-7264. [DOI: 10.1039/c7cp08390d] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
H-bonding with the solvent affects significantly the photoisomerisation of Methyl Orange.
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Affiliation(s)
- Christoph Nançoz
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Giuseppe Licari
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Joseph S. Beckwith
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Magnus Soederberg
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Bogdan Dereka
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Arnulf Rosspeintner
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | | | - Romain Letrun
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Sabine Richert
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Bernhard Lang
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
| | - Eric Vauthey
- Department of Physical Chemistry
- University of Geneva
- CH-1211 Geneva 4
- Switzerland
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15
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Thomaz JE, Bailey HE, Fayer MD. The influence of mesoscopic confinement on the dynamics of imidazolium-based room temperature ionic liquids in polyether sulfone membranes. J Chem Phys 2017; 147:194502. [DOI: 10.1063/1.5003036] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Joseph E. Thomaz
- Department of Chemistry, Stanford University, Stanford, California 94305, USA
| | - Heather E. Bailey
- Department of Chemistry, Stanford University, Stanford, California 94305, USA
| | - Michael D. Fayer
- Department of Chemistry, Stanford University, Stanford, California 94305, USA
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16
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Shukla N, Pomarico E, Chen L, Chergui M, Othon CM. Retardation of Bulk Water Dynamics by Disaccharide Osmolytes. J Phys Chem B 2016; 120:9477-83. [DOI: 10.1021/acs.jpcb.6b07751] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nimesh Shukla
- Department
of Physics, Wesleyan University, Middletown, Connecticut 06457, United States
| | - Enrico Pomarico
- Laboratoire
de Spectroscopie Ultrarapide (LSU) and Lausanne Centre for Ultrafast
Science (LACUS), École Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
| | - Lee Chen
- Department
of Physics, Wesleyan University, Middletown, Connecticut 06457, United States
| | - Majed Chergui
- Laboratoire
de Spectroscopie Ultrarapide (LSU) and Lausanne Centre for Ultrafast
Science (LACUS), École Polytechnique Fédérale de Lausanne, ISIC, FSB, CH-1015 Lausanne, Switzerland
| | - Christina M. Othon
- Department
of Physics, Wesleyan University, Middletown, Connecticut 06457, United States
- Molecular
Biophysics Program, Wesleyan University, Middletown, Connecticut 06457, United States
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17
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Kim D, Park SW, Shim Y, Kim HJ, Jung Y. Excitation-energy dependence of solvation dynamics in room-temperature ionic liquids. J Chem Phys 2016; 145:044502. [PMID: 27475376 DOI: 10.1063/1.4955211] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Influence of the excitation energy of a probe solute molecule on its solvation dynamics and emission spectrum in 1-ethyl-3-methylimidazolium hexafluorophosphate (EMI(+)PF6 (-)) is studied via molecular dynamics simulations using a coarse-grained model description. By exciting the probe at different energies, each with an extremely narrow distribution, ensuing solvent relaxation and its dynamic variance are monitored using the isoconfigurational ensemble method. Resulting Stokes shift function, S(t), indicates that long-time solvent relaxation becomes slower with the decreasing excitation energy and approaches the equilibrium correlation function, C(t), of solvent fluctuations. This suggests that the system excited at the red-edge of the spectrum observes linear response better than that at the blue-edge. A detailed analysis of nonequilibrium trajectories shows that the effect of initial configurations on variance of relaxation dynamics is mainly confined to short times; it reaches a maximum around 0.1 ≲ t ≲ 1 ps and diminishes as time further increases. The influence of the initial velocity distribution, on the other hand, tends to grow with time and dominates the long-time variations of dynamics. The emission spectrum shows the red-edge effect in accord with previous studies.
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Affiliation(s)
- Daekeon Kim
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Sang-Won Park
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Youngseon Shim
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Hyung J Kim
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - YounJoon Jung
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
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18
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Park JW, Rhee YM. Diabatic Population Matrix Formalism for Performing Molecular Mechanics Style Simulations with Multiple Electronic States. J Chem Theory Comput 2015; 10:5238-53. [PMID: 26583208 DOI: 10.1021/ct5006856] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An accurate description of nonbonded interactions is important in investigating dynamics of molecular systems. In many situations, fixed point charge models are successfully applied to explaining various chemical phenomena. However, these models with conventional formulations will not be appropriate in elucidating the detailed dynamics during nonadiabatic events. This is mainly because the chemical properties of any molecule, especially its electronic populations, significantly change with respect to molecular distortions in the vicinity of the surface crossing. To overcome this issue in molecular simulations yet within the framework of the fixed point charge model, we define a diabatic electronic population matrix and substitute it for the conventional adiabatic partial charges. We show that this matrix can be readily utilized toward attaining more reliable descriptions of Coulombic interactions, in combination with the interpolation formalism for obtaining the intramolecular interaction potential. We demonstrate how the mixed formalism with the diabatic charges and the interpolation can be applied to molecular simulations by conducting adiabatic and nonadiabatic molecular dynamics trajectory calculations of the green fluorescent protein chromophore anion in aqueous environment.
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Affiliation(s)
- Jae Woo Park
- Center for Self-Assembly and Complexity, Institute for Basic Science (IBS) , Pohang 790-784, Korea.,Department of Chemistry, Pohang University of Science and Technology (POSTECH) , Pohang 790-784, Korea
| | - Young Min Rhee
- Center for Self-Assembly and Complexity, Institute for Basic Science (IBS) , Pohang 790-784, Korea.,Department of Chemistry, Pohang University of Science and Technology (POSTECH) , Pohang 790-784, Korea
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19
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Kumar Sahu P, Ghosh A, Sarkar M. Understanding Structure-Property Correlation in Monocationic and Dicationic Ionic Liquids through Combined Fluorescence and Pulsed-Field Gradient (PFG) and Relaxation NMR Experiments. J Phys Chem B 2015; 119:14221-35. [PMID: 26447540 DOI: 10.1021/acs.jpcb.5b07357] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Steady state, time-resolved fluorescence and NMR experiments are carried out to gain deeper insights into the structure-property correlation in structurally similar monocationic and dicationic room-temperature ionic liquids (RTILs). The excitation wavelength dependent fluorescence response of fluorophore in 1-methy-3-propyllimidazolium bis(trifluoromethylsulfonyl)amide [C3MIm][NTf2] is found to be different from that of 1,6-bis(3-methylimidazolium-1-yl)hexane bis(trifluoromethylsulfonyl)amide [C6(MIm)2][NTf2]2 and 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide [C6MIm][NTf2]. The outcomes of the present solvent dynamics study in [C3MIm][NTf2] when compared with those in [C6(MIm)2][NTf2]2 and in [C6MIm][NTf2] from our previous studies (Phys. Chem. Chem. Phys. 2014, 16, 12918-12928) indicate the involvement of dipolar rotation of imidazolium cation during solvation. To correlate the findings of solvation dynamics study with the dipolar rotation of the imidazolium ring, pulsed-field gradient (PFG)-NMR technique for translational diffusion coefficient measurement and (1)H as well as (19)F spin-lattice relaxation measurements are employed. NMR investigation reveals that an ultrafast component of solvation can be related to the dipolar rotation of imidazolium cation; hence, the role of dipolar rotation of cations in governing the dynamics of solvation in ILs cannot be ignored. Analysis of the rotational relaxation dynamics data by the Stokes-Einstein-Debye hydrodynamic theory unveils distinctive features of solute-solvent interaction in [C3MIm][NTf2] and [C6(MIm)2][NTf2]2.
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Affiliation(s)
- Prabhat Kumar Sahu
- School of Chemical Sciences, National Institute of Science Education and Research , Bhubaneswar 751005, India
| | - Arindam Ghosh
- 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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20
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Chatterjee A, Maity B, Ahmed SA, Seth D. Photophysics and Rotational Dynamics of a Hydrophilic Molecule in a Room Temperature Ionic Liquid. Photochem Photobiol 2015; 91:1056-63. [PMID: 26031350 DOI: 10.1111/php.12472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Accepted: 05/22/2015] [Indexed: 11/29/2022]
Abstract
We have studied the photophysics and rotational diffusion of hydrophilic solute 7-(N, N'-diethylamino)coumarin-3-carboxylic acid (7-DCCA) in a room temperature ionic liquid methyltrioctylammonium bis(trifluoromethylsulfonyl) imide ([N1888 ][NTf2 ]). Comparison of activation energies of viscous flow and nonradiative decay shows that the photophysical properties of 7-DCCA are not guided by the bulk viscosity of the medium but are dependent on the specific solute solvent interaction and structural heterogeneity of the medium. The rotational relaxation behaviour of 7-DCCA in [N1888 ][NTf2] shows significant deviation from the Stokes Einstein Debye hydrodynamic model of rotational diffusion. This is indicative of the influence of specific solute solvent interaction on the rotational relaxation behaviour of 7-DCCA. Comparison of activation energy of rotational relaxation with activation energy of viscous flow clearly reinforces our assumption that the structural heterogeneity of the medium and specific solute solvent interaction plays a dominant role on the rotational diffusion instead of bulk viscosity.
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Affiliation(s)
- Aninda Chatterjee
- Department of Chemistry, Indian Institute of Technology Patna, Patna, Bihar, India
| | - Banibrata Maity
- Department of Chemistry, Indian Institute of Technology Patna, Patna, Bihar, India
| | - Sayeed Ashique Ahmed
- Department of Chemistry, Indian Institute of Technology Patna, Patna, Bihar, India
| | - Debabrata Seth
- Department of Chemistry, Indian Institute of Technology Patna, Patna, Bihar, India
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21
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Zhang XX, Breffke J, Ernsting NP, Maroncelli M. Observations of probe dependence of the solvation dynamics in ionic liquids. Phys Chem Chem Phys 2015; 17:12949-56. [DOI: 10.1039/c5cp00814j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solvation and rotational dynamics of 4-aminophthalimide (4AP) in four ionic liquids (ILs) are measured using a combination of fluorescence upconversion spectroscopy and time-correlated single photon counting.
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Affiliation(s)
- Xin-Xing Zhang
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Jens Breffke
- Department of Chemistry
- The Pennsylvania State University
- University Park
- USA
| | | | - Mark Maroncelli
- Department of Chemistry
- The Pennsylvania State University
- University Park
- USA
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22
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Rosspeintner A, Vauthey E. Bimolecular photoinduced electron transfer reactions in liquids under the gaze of ultrafast spectroscopy. Phys Chem Chem Phys 2014; 16:25741-54. [PMID: 25356933 DOI: 10.1039/c4cp03862b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Because of their key role in many areas of science and technology, bimolecular photoinduced electron transfer reactions have been intensively studied over the past five decades. Despite this, several important questions, such as the absence of the Marcus inverted region or the structure of the primary reaction product, have only recently been solved while others still remain unanswered. Ultrafast spectroscopy has proven to be extremely powerful to monitor the entire electron transfer process and to access, with the help of state-of-the-art theoretical models of diffusion-assisted reactions, crucial information like e.g. the intrinsic charge separation dynamics beyond the diffusion limit. Additionally, extension of these experimental techniques to other spectral regions than the UV-visible, such as the infrared, has given a totally new insight into the nature, the structure and the dynamics of the key reaction intermediates, like exciplexes and ions pairs. In this perspective, we highlight these recent progresses and discuss several aspects that still need to be addressed before a thorough understanding of these processes can be attained.
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Affiliation(s)
- Arnulf Rosspeintner
- Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, Geneva, Switzerland.
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23
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Kumbhakar M, Manna A, Sayed M, Kumar A, Pal H. Observation of the Marcus Inverted Region for Bimolecular Photoinduced Electron-Transfer Reactions in Viscous Media. J Phys Chem B 2014; 118:10704-15. [DOI: 10.1021/jp506885r] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Manoj Kumbhakar
- Radiation
and Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Arpan Manna
- Physical
and Material Chemistry Division, CSIR-National Chemical Laboratory, H. J. Bhabha Road, Pune 411 008, India
| | - Mhejabeen Sayed
- Radiation
and Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Anil Kumar
- Physical
and Material Chemistry Division, CSIR-National Chemical Laboratory, H. J. Bhabha Road, Pune 411 008, India
| | - Haridas Pal
- Radiation
and Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
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24
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Richert S, Mosquera Vazquez S, Grzybowski M, Gryko DT, Kyrychenko A, Vauthey E. Excited-State Dynamics of an Environment-Sensitive Push–Pull Diketopyrrolopyrrole: Major Differences between the Bulk Solution Phase and the Dodecane/Water Interface. J Phys Chem B 2014; 118:9952-63. [DOI: 10.1021/jp506062j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Sabine Richert
- Department
of Physical Chemistry, University of Geneva, 30 quai Ernest-Ansermet, CH-1211 Geneva 4, Switzerland
| | - Sandra Mosquera Vazquez
- Department
of Physical Chemistry, University of Geneva, 30 quai Ernest-Ansermet, CH-1211 Geneva 4, Switzerland
| | - Marek Grzybowski
- Institute of Organic Chemistry of the Polish Academy of Sciences, 01-224 Warsaw, Poland
| | - Daniel T. Gryko
- Institute of Organic Chemistry of the Polish Academy of Sciences, 01-224 Warsaw, Poland
| | - Alexander Kyrychenko
- V. N. Karazin Kharkiv National University, 4 Svobody Square, Kharkiv 61022, Ukraine
| | - Eric Vauthey
- Department
of Physical Chemistry, University of Geneva, 30 quai Ernest-Ansermet, CH-1211 Geneva 4, Switzerland
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25
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Nagasawa Y, Miyasaka H. Ultrafast solvation dynamics and charge transfer reactions in room temperature ionic liquids. Phys Chem Chem Phys 2014; 16:13008-26. [DOI: 10.1039/c3cp55465a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this perspective, we review the recent studies concerning the liquid structure and solvation dynamics of ionic liquids, and their influence upon electron transfer and charge transfer reactions.
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Affiliation(s)
- Yutaka Nagasawa
- Division of Frontier Materials Science
- Department of Materials Engineering Science
- Graduate School of Engineering Science
- Osaka University
- Toyonaka, Japan
| | - Hiroshi Miyasaka
- Division of Frontier Materials Science
- Department of Materials Engineering Science
- Graduate School of Engineering Science
- Osaka University
- Toyonaka, Japan
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26
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Sahu PK, Das SK, Sarkar M. Fluorescence response of a dipolar organic solute in a dicationic ionic liquid (IL): is the behavior of dicationic IL different from that of usual monocationic IL? Phys Chem Chem Phys 2014; 16:12918-28. [DOI: 10.1039/c4cp01053a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The solvation dynamics of coumarin 153 are compared in di and in mono-cationic-based ionic liquids for the first time.
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Affiliation(s)
- Prabhat Kumar Sahu
- School of Chemical Sciences
- National Institute of Science Education and Research
- Bhubaneswar 751005, India
| | - Sudhir Kumar Das
- 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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27
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Kim D, Jeong D, Jung Y. Dynamic propensity as an indicator of heterogeneity in room-temperature ionic liquids. Phys Chem Chem Phys 2014; 16:19712-9. [DOI: 10.1039/c4cp01893a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Dynamic propensity of an RTIL system exhibits broad and asymmetric distributions, and spatial patterns of the dynamic propensity and mobility distribution are shown.
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Affiliation(s)
- Daekeon Kim
- Department of Chemistry
- Seoul National University
- Seoul, Korea
| | - Daun Jeong
- Department of Chemistry
- Seoul National University
- Seoul, Korea
| | - YounJoon Jung
- Department of Chemistry
- Seoul National University
- Seoul, Korea
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28
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Fedoseeva M, Fita P, Vauthey E. Excited-state dynamics of charged dyes at alkane/water interfaces in the presence of salts and ionic surfactants. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:14865-14872. [PMID: 24245476 DOI: 10.1021/la402191p] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The excited-state dynamics of the cationic dye malachite green (MG) and of the dianionic dye eosin B at the dodecane/water interface has been investigated using femtosecond time-resolved surface second harmonic generation (TR-SSHG). By using different probe wavelengths, the contributions of monomeric and aggregated MG to the signal could be spectroscopically distinguished. The effect of the addition of a small amount of surfactants was found to strongly depend on the relative charges of surfactant and dye. For surfactant/dye pairs with opposite charges, the TR-SSHG signal is dominated by the contribution from aggregates, whereas for pairs with the same charges, the signal intensity becomes vanishingly small. These effects are explained in terms of electrostatic interactions between surfactants and dyes that favor either attraction of the dye toward the interface or its repulsion toward the bulk. As a very similar behavior is observed with MG upon addition of NaSCN, we conclude that, in this case, this effect reflects the affinity of SCN¯ for the interface. On the other hand, the guanidinium cation was found to have a different effect than that of a positively charged surfactant on the SSHG signal of MG, indicating this cation does not accumulate in the interfacial region.
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Affiliation(s)
- Marina Fedoseeva
- Department of Physical Chemistry, University of Geneva , 30 Quai Ernest-Ansermet, Geneva, Switzerland
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29
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Suda K, Terazima M, Sato H, Kimura Y. Excitation Wavelength Dependence of Excited State Intramolecular Proton Transfer Reaction of 4′-N,N-Diethylamino-3-hydroxyflavone in Room Temperature Ionic Liquids Studied by Optical Kerr Gate Fluorescence Measurement. J Phys Chem B 2013; 117:12567-82. [DOI: 10.1021/jp405537c] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Kayo Suda
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Masahide Terazima
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Hirofumi Sato
- Department
of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyoto
Daigaku Katsura, Kyoto, 615-8510, Japan
| | - Yoshifumi Kimura
- Department
of Molecular Chemistry and Bioscience, Faculty
of Science and Engineering, Doshisha University, Kyoto 610-0321, Japan
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30
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Terranova ZL, Corcelli SA. On the Mechanism of Solvation Dynamics in Imidazolium-Based Ionic Liquids. J Phys Chem B 2013; 117:15659-66. [DOI: 10.1021/jp406419y] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Z. L. Terranova
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556,
United States
| | - S. A. Corcelli
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556,
United States
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31
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Zhang XX, Liang M, Hunger J, Buchner R, Maroncelli M. Dielectric Relaxation and Solvation Dynamics in a Prototypical Ionic Liquid + Dipolar Protic Liquid Mixture: 1-Butyl-3-Methylimidazolium Tetrafluoroborate + Water. J Phys Chem B 2013; 117:15356-68. [DOI: 10.1021/jp4043528] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xin-Xing Zhang
- Department of Physics, Nankai University, Tianjin, China
- Department of Chemistry, Humboldt Universität zu Berlin, Germany
| | - Min Liang
- Department of Chemistry, The Pennsylvania State University, University Park,
Pennsylvania 16802, United States
| | - Johannes Hunger
- Institut für Physikalische
und Theoretische Chemie, Universität Regensburg, 93040 Regensburg, Germany
| | - Richard Buchner
- Institut für Physikalische
und Theoretische Chemie, Universität Regensburg, 93040 Regensburg, Germany
| | - Mark Maroncelli
- Department of Chemistry, The Pennsylvania State University, University Park,
Pennsylvania 16802, United States
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32
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Zhang XX, Liang M, Ernsting NP, Maroncelli M. Conductivity and Solvation Dynamics in Ionic Liquids. J Phys Chem Lett 2013; 4:1205-1210. [PMID: 26282043 DOI: 10.1021/jz400359r] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
It was shown recently that a simple dielectric continuum model predicts the integral solvation time of a dipolar solute ⟨τsolv⟩ to be inversely proportional to the electrical conductivity σ0 of an ionic solvent or solution. In this Letter, we provide a more general derivation of this connection and show that available data on coumarin 153 (C153) in ionic liquids generally support this prediction. The relationship between solvation time and conductivity can be expressed by ln(⟨τsolv⟩/ps) = 4.37 - 0.92 ln (σ0/S m(-1)) in 34 common ionic liquids.
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Affiliation(s)
- Xin-Xing Zhang
- †Department of Physics, Nankai University, Tianjin, China
- ‡Department of Chemistry, Humboldt Universität zu Berlin, Germany
| | - Min Liang
- §Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania, United States
| | | | - Mark Maroncelli
- §Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania, United States
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33
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Muramatsu M, Katayama T, Ito S, Nagasawa Y, Matsuo D, Suzuma Y, Peng L, Orita A, Otera J, Miyasaka H. Photoinduced charge-transfer dynamics of sequentially aligned donor–acceptor systems in an ionic liquid. Photochem Photobiol Sci 2013; 12:1885-94. [DOI: 10.1039/c3pp50198a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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34
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Marwani HM. Exploring spectroscopic and physicochemical properties of new fluorescent ionic liquids. J Fluoresc 2012; 23:251-7. [PMID: 23117624 DOI: 10.1007/s10895-012-1142-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Accepted: 10/23/2012] [Indexed: 11/24/2022]
Abstract
In the current study, spectroscopic and physicochemical properties of newly prepared ionic liquids were investigated. Ionic liquids were synthesized via a simple and straightforward route using a metathesis reaction of either N,N-diethyl-p-phenylenediamine monohydrochloride or N-phenacylpyridinium bromide with bis(trifluoromethane)sulfonimide lithium in water. High yield and purity were obtained for the resultant ionic liquids. Data acquired by use of (1)H NMR and FT-IR measurements were consistent with the chemical structures of newly prepared ionic liquids. Results of thermal gravimetric analysis also implied that these ionic liquids have good thermal stability. In addition, UV-vis and fluorescence spectroscopy measurements provided that new ionic liquids are good absorbent and fluorescent. Time-based fluorescence steady-state measurements showed that ionic liquids have high photostability against photobleaching. For a deeper mechanistic understanding of the analytical potential of newly synthesized ionic liquids, spectroscopic and physicochemical parameters, including singlet absorption, extinction coefficient, fluorescence quantum yield, Stokes shift, oscillator strength and dipole moment, were also investigated.
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Affiliation(s)
- Hadi M Marwani
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah, Saudi Arabia 21589.
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35
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Daschakraborty S, Biswas R. Ultrafast solvation response in room temperature ionic liquids: Possible origin and importance of the collective and the nearest neighbour solvent modes. J Chem Phys 2012; 137:114501. [DOI: 10.1063/1.4752425] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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36
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Zhang XX, Liang M, Ernsting NP, Maroncelli M. Complete Solvation Response of Coumarin 153 in Ionic Liquids. J Phys Chem B 2012; 117:4291-304. [DOI: 10.1021/jp305430a] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xin-Xing Zhang
- Department of Physics, College
of Physical Science, Nankai University,
Tianjin, China
- Department
of Chemistry, Humboldt University, Berlin,
Germany
| | - Min Liang
- Department of Chemistry, The Pennsylvania State University, University Park,
Pennsylvania, United States
| | | | - Mark Maroncelli
- Department of Chemistry, The Pennsylvania State University, University Park,
Pennsylvania, United States
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37
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Roy D, Maroncelli M. Simulations of Solvation and Solvation Dynamics in an Idealized Ionic Liquid Model. J Phys Chem B 2012; 116:5951-70. [DOI: 10.1021/jp301359w] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Durba Roy
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802,
United States
| | - Mark Maroncelli
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802,
United States
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38
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Ruckebusch C, Sliwa M, Pernot P, de Juan A, Tauler R. Comprehensive data analysis of femtosecond transient absorption spectra: A review. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2012. [DOI: 10.1016/j.jphotochemrev.2011.10.002] [Citation(s) in RCA: 153] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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39
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Sarkar S, Mandal S, Ghatak C, Rao VG, Ghosh S, Sarkar N. Photoinduced Electron Transfer in an Imidazolium Ionic Liquid and in Its Binary Mixtures with Water, Methanol, and 2-Propanol: Appearance of Marcus-Type of Inversion. J Phys Chem B 2012; 116:1335-44. [DOI: 10.1021/jp2075995] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Souravi Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, WB, India
| | - Sarthak Mandal
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, WB, India
| | - Chiranjib Ghatak
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, WB, India
| | - Vishal Govind Rao
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, WB, India
| | - Surajit Ghosh
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, WB, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, WB, India
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40
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Maroncelli M, Zhang XX, Liang M, Roy D, Ernsting NP. Measurements of the complete solvation response of coumarin 153 in ionic liquids and the accuracy of simple dielectric continuum predictions. Faraday Discuss 2012; 154:409-24; discussion 439-64, 465-71. [DOI: 10.1039/c1fd00058f] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Carlson PJ, Bose S, Armstrong DW, Hawkins T, Gordon MS, Petrich JW. Structure and Dynamics of the 1-Hydroxyethyl-4-amino-1,2,4-triazolium Nitrate High-Energy Ionic Liquid System. J Phys Chem B 2011; 116:503-12. [DOI: 10.1021/jp207840q] [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)
- Philip J. Carlson
- U.S. Department of Energy Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Sayantan Bose
- U.S. Department of Energy Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Daniel W. Armstrong
- Department of Chemistry and Biochemistry, University of Texas, Arlington, Box 19065, Arlington, Texas 76019, United States
| | - Tommy Hawkins
- Air Force Research Laboratory, 10 East Saturn Boulevard, Building 8451, Edwards Air Force Base, California 93524, United States
| | - Mark S. Gordon
- U.S. Department of Energy Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Jacob W. Petrich
- U.S. Department of Energy Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
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42
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Kimura Y, Kobayashi A, Demizu M, Terazima M. Solvation dynamics of coumarin 153 in mixtures of carbon dioxide and room temperature ionic liquids. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.07.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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43
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Wang D, Hao C, Wang S, Dong H, Qiu J. Time-dependent density functional theory study on the electronic excited-state hydrogen bonding of the chromophore coumarin 153 in a room-temperature ionic liquid. J Mol Model 2011; 18:937-45. [DOI: 10.1007/s00894-011-1131-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Accepted: 05/15/2011] [Indexed: 12/15/2022]
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44
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Muramatsu M, Nagasawa Y, Miyasaka H. Ultrafast Solvation Dynamics in Room Temperature Ionic Liquids Observed by Three-Pulse Photon Echo Peak Shift Measurements. J Phys Chem A 2011; 115:3886-94. [DOI: 10.1021/jp108282v] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Masayasu Muramatsu
- Division of Frontier Materials Science, Graduate School of Engineering Science, Center for Quantum Science and Technology under Extreme Conditions, Osaka University and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Yutaka Nagasawa
- Division of Frontier Materials Science, Graduate School of Engineering Science, Center for Quantum Science and Technology under Extreme Conditions, Osaka University and CREST, JST, Toyonaka, Osaka 560-8531, Japan
| | - Hiroshi Miyasaka
- Division of Frontier Materials Science, Graduate School of Engineering Science, Center for Quantum Science and Technology under Extreme Conditions, Osaka University and CREST, JST, Toyonaka, Osaka 560-8531, Japan
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45
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Nagasawa Y. Ultrafast photon echo experiments in condensed phase: Detection of solvation dynamics, coherent wavepacket motions and static inhomogeneity. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2011. [DOI: 10.1016/j.jphotochemrev.2011.05.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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46
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Pramanik R, Sarkar S, Ghatak C, Rao VG, Sarkar N. Ionic Liquid Containing Microemulsions: Probe by Conductance, Dynamic Light Scattering, Diffusion-Ordered Spectroscopy NMR Measurements, and Study of Solvent Relaxation Dynamics. J Phys Chem B 2011; 115:2322-30. [DOI: 10.1021/jp110896w] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Rajib Pramanik
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Souravi Sarkar
- 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
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
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47
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Solarski J, Angulo G, Kapturkiewicz A. Time-resolved luminescence investigations of the reversible energy transfer from the excited 3*MLCT states to organic acceptors—An alternative method for the determination of triplet state energies and lifetimes. J Photochem Photobiol A Chem 2011. [DOI: 10.1016/j.jphotochem.2010.12.003] [Citation(s) in RCA: 5] [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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48
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Sherin PS, Grilj J, Kopylova LV, Yanshole VV, Tsentalovich YP, Vauthey E. Photophysics and Photochemistry of the UV Filter Kynurenine Covalently Attached to Amino Acids and to a Model Protein. J Phys Chem B 2010; 114:11909-19. [DOI: 10.1021/jp104485k] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peter S. Sherin
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia, and Department of Physical Chemistry, University of Geneva, quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Jakob Grilj
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia, and Department of Physical Chemistry, University of Geneva, quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Lyudmila V. Kopylova
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia, and Department of Physical Chemistry, University of Geneva, quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Vadim V. Yanshole
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia, and Department of Physical Chemistry, University of Geneva, quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Yuri P. Tsentalovich
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia, and Department of Physical Chemistry, University of Geneva, quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
| | - Eric Vauthey
- International Tomography Center SB RAS, Institutskaya str. 3a, 630090 Novosibirsk, Russia, and Department of Physical Chemistry, University of Geneva, quai Ernest-Ansermet 30, CH-1211 Geneva, Switzerland
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Abstract
AbstractIn this study, spectroscopic investigation of chiral and achiral room temperature ionic liquids is achieved. New ionic liquids were prepared via metathesis, accomplished by the reaction of either L-phenylalanine ethyl ester hydrochloride, chlorpromazine hydrochloride or 1,10-Phenanthroline monohydrate hydrochloride with lithium bis(trifluoromethane) sulfonamide in water. The resulting ionic liquids were produced in high yield and purity. The results obtained by use of 1H NMR and IR experiments were in very good agreement with the chemical structures of the synthesized ionic liquids. In addition, the results of thermal gravimetric analysis suggested that these ionic liquids have good thermal stability. UV-Vis and fluorescence spectroscopy measurements indicated that these ionic liquids are strongly optically absorbent and fluorescent. Lastly, time-based fluorescence steady-state measurements demonstrated the high photostability of these ionic liquids.
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Shim Y, Kim HJ. MD Study of Solvation in the Mixture of a Room-Temperature Ionic Liquid and CO2. J Phys Chem B 2010; 114:10160-70. [DOI: 10.1021/jp105021b] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Youngseon Shim
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, Department of Chemistry, Seoul National University, Seoul 151-747, Korea, and School of Computational Sciences, Korea Institute for Advanced Study, Seoul 130-722, Korea
| | - Hyung J. Kim
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, Department of Chemistry, Seoul National University, Seoul 151-747, Korea, and School of Computational Sciences, Korea Institute for Advanced Study, Seoul 130-722, Korea
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