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Yan Y, Lin M, Katsumura Y, Fu H, Muroya Y. Solvated electrons at elevated temperatures in different alcohols: Temperature and molecular structure effects. Radiat Phys Chem Oxf Engl 1993 2010. [DOI: 10.1016/j.radphyschem.2010.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yan Y, Lin M, Katsumura Y, Muroya Y, Yamashita S, Hata K, Meesungnoen J, Jay-Gerin JP. Temperature and density effects on the absorption maximum of solvated electrons in sub- and super-critical methanol. CAN J CHEM 2010. [DOI: 10.1139/v10-120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The optical absorption spectra of the solvated electron ([Formula: see text]) in sub- and super-critical methanol are measured by both electron pulse radiolysis and laser photolysis techniques, at temperatures in the range 220–270 °C. Over the density range studied (~0.45–0.59 g/cm3), the position of the absorption maximum ([Formula: see text]) of [Formula: see text] is found to shift only slightly to the red with decreasing density. In agreement with our previous work in water, at a fixed pressure, [Formula: see text] decreases monotonically with increasing temperature in passing through the phase transition at Tc (239.5 °C). By contrast, at a fixed density, [Formula: see text] exhibits a minimum as the solvent passes above the critical point into the supercritical state. These behaviors are discussed in terms of microscopic arguments based on the changes that occur in the methanol properties and methanol structure in the sub- and super-critical regimes. The effect of the addition of a small amount of water to the alcohol on the optical absorption energy of [Formula: see text] is also investigated.
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Affiliation(s)
- Y. Yan
- Department of Nuclear Engineering and Management, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
- Nuclear Professional School, Graduate School of Engineering, University of Tokyo, 2-22 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1188, Japan
- Département de Médecine Nucléaire et de Radiobiologie, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
- Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, 2-4 Sirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
| | - M. Lin
- Department of Nuclear Engineering and Management, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
- Nuclear Professional School, Graduate School of Engineering, University of Tokyo, 2-22 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1188, Japan
- Département de Médecine Nucléaire et de Radiobiologie, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
- Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, 2-4 Sirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
| | - Y. Katsumura
- Department of Nuclear Engineering and Management, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
- Nuclear Professional School, Graduate School of Engineering, University of Tokyo, 2-22 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1188, Japan
- Département de Médecine Nucléaire et de Radiobiologie, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
- Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, 2-4 Sirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
| | - Y. Muroya
- Department of Nuclear Engineering and Management, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
- Nuclear Professional School, Graduate School of Engineering, University of Tokyo, 2-22 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1188, Japan
- Département de Médecine Nucléaire et de Radiobiologie, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
- Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, 2-4 Sirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
| | - S. Yamashita
- Department of Nuclear Engineering and Management, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
- Nuclear Professional School, Graduate School of Engineering, University of Tokyo, 2-22 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1188, Japan
- Département de Médecine Nucléaire et de Radiobiologie, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
- Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, 2-4 Sirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
| | - K. Hata
- Department of Nuclear Engineering and Management, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
- Nuclear Professional School, Graduate School of Engineering, University of Tokyo, 2-22 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1188, Japan
- Département de Médecine Nucléaire et de Radiobiologie, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
- Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, 2-4 Sirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
| | - J. Meesungnoen
- Department of Nuclear Engineering and Management, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
- Nuclear Professional School, Graduate School of Engineering, University of Tokyo, 2-22 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1188, Japan
- Département de Médecine Nucléaire et de Radiobiologie, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
- Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, 2-4 Sirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
| | - J.-P. Jay-Gerin
- Department of Nuclear Engineering and Management, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
- Nuclear Professional School, Graduate School of Engineering, University of Tokyo, 2-22 Shirakata-shirane, Tokai, Naka, Ibaraki 319-1188, Japan
- Département de Médecine Nucléaire et de Radiobiologie, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
- Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency, 2-4 Sirakata-shirane, Tokai, Naka, Ibaraki 319-1195, Japan
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Kratz S, Torres-Alacan J, Urbanek J, Lindner J, Vöhringer P. Geminate recombination of hydrated electrons in liquid-to-supercritical water studied by ultrafast time-resolved spectroscopy. Phys Chem Chem Phys 2010; 12:12169-76. [DOI: 10.1039/c0cp00762e] [Citation(s) in RCA: 22] [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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Lin M, Fu H, Lampre I, Waele VD, Muroya Y, Yan Y, Yamashita S, Katsumura Y, Mostafavi M. Pulse Radiolysis Studies on the Temperature-Dependent Spectrum and the Time-Dependent Yield of Solvated Electron in Propane-1,2,3-triol. J Phys Chem A 2009; 113:12193-8. [DOI: 10.1021/jp905199d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mingzhang Lin
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1195, Japan, Nuclear Professional School, School of Engineering, University of Tokyo, 2-22 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1188, Japan, Laboratoire de Chimie Physique/ELYSE, Université Paris-Sud 11, UMR 8000, Bât. 349, Orsay F-91405, CNRS, Orsay, F-91405, and Department of Nuclear Engineering and Management, School of Engineering, University of Tokyo, Hongo 7-3-1, Bunkyo
| | - Haiying Fu
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1195, Japan, Nuclear Professional School, School of Engineering, University of Tokyo, 2-22 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1188, Japan, Laboratoire de Chimie Physique/ELYSE, Université Paris-Sud 11, UMR 8000, Bât. 349, Orsay F-91405, CNRS, Orsay, F-91405, and Department of Nuclear Engineering and Management, School of Engineering, University of Tokyo, Hongo 7-3-1, Bunkyo
| | - Isabelle Lampre
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1195, Japan, Nuclear Professional School, School of Engineering, University of Tokyo, 2-22 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1188, Japan, Laboratoire de Chimie Physique/ELYSE, Université Paris-Sud 11, UMR 8000, Bât. 349, Orsay F-91405, CNRS, Orsay, F-91405, and Department of Nuclear Engineering and Management, School of Engineering, University of Tokyo, Hongo 7-3-1, Bunkyo
| | - Vincent de Waele
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1195, Japan, Nuclear Professional School, School of Engineering, University of Tokyo, 2-22 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1188, Japan, Laboratoire de Chimie Physique/ELYSE, Université Paris-Sud 11, UMR 8000, Bât. 349, Orsay F-91405, CNRS, Orsay, F-91405, and Department of Nuclear Engineering and Management, School of Engineering, University of Tokyo, Hongo 7-3-1, Bunkyo
| | - Yusa Muroya
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1195, Japan, Nuclear Professional School, School of Engineering, University of Tokyo, 2-22 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1188, Japan, Laboratoire de Chimie Physique/ELYSE, Université Paris-Sud 11, UMR 8000, Bât. 349, Orsay F-91405, CNRS, Orsay, F-91405, and Department of Nuclear Engineering and Management, School of Engineering, University of Tokyo, Hongo 7-3-1, Bunkyo
| | - Yu Yan
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1195, Japan, Nuclear Professional School, School of Engineering, University of Tokyo, 2-22 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1188, Japan, Laboratoire de Chimie Physique/ELYSE, Université Paris-Sud 11, UMR 8000, Bât. 349, Orsay F-91405, CNRS, Orsay, F-91405, and Department of Nuclear Engineering and Management, School of Engineering, University of Tokyo, Hongo 7-3-1, Bunkyo
| | - Shinichi Yamashita
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1195, Japan, Nuclear Professional School, School of Engineering, University of Tokyo, 2-22 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1188, Japan, Laboratoire de Chimie Physique/ELYSE, Université Paris-Sud 11, UMR 8000, Bât. 349, Orsay F-91405, CNRS, Orsay, F-91405, and Department of Nuclear Engineering and Management, School of Engineering, University of Tokyo, Hongo 7-3-1, Bunkyo
| | - Yosuke Katsumura
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1195, Japan, Nuclear Professional School, School of Engineering, University of Tokyo, 2-22 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1188, Japan, Laboratoire de Chimie Physique/ELYSE, Université Paris-Sud 11, UMR 8000, Bât. 349, Orsay F-91405, CNRS, Orsay, F-91405, and Department of Nuclear Engineering and Management, School of Engineering, University of Tokyo, Hongo 7-3-1, Bunkyo
| | - Mehran Mostafavi
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1195, Japan, Nuclear Professional School, School of Engineering, University of Tokyo, 2-22 Shirakata shirane, Tokaimura, Nakagun, Ibaraki 319-1188, Japan, Laboratoire de Chimie Physique/ELYSE, Université Paris-Sud 11, UMR 8000, Bât. 349, Orsay F-91405, CNRS, Orsay, F-91405, and Department of Nuclear Engineering and Management, School of Engineering, University of Tokyo, Hongo 7-3-1, Bunkyo
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Kumagai Y, Lin M, Lampre I, Mostafavi M, Muroya Y, Katsumura Y. Temperature effect on the absorption spectrum of the hydrated electron paired with a metallic cation in deuterated water. Radiat Phys Chem Oxf Engl 1993 2008. [DOI: 10.1016/j.radphyschem.2008.05.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Lampre I, Pernot P, Bonin J, Mostafavi M. Comparison of solvation dynamics of electrons in four polyols. Radiat Phys Chem Oxf Engl 1993 2008. [DOI: 10.1016/j.radphyschem.2008.05.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Effect of temperature on the absorption spectra of the solvated electron in 1-propanol and 2-propanol: Pulse radiolysis and laser photolysis studies at temperatures up to supercritical condition. Radiat Phys Chem Oxf Engl 1993 2008. [DOI: 10.1016/j.radphyschem.2007.05.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Bonin J, Lampre I, Pernot P, Mostafavi M. Solvation dynamics of electron produced by two-photon ionization of liquid polyols. III. Glycerol. J Phys Chem A 2008; 112:1880-6. [PMID: 18266344 DOI: 10.1021/jp710203v] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The solvation dynamics of excess electrons in glycerol have been measured by the pump-probe femtosecond laser technique at 333 K. The electrons are produced by two-photon absorption at 263 nm. The change in the induced absorbance is followed up to 450 ps in the spectral range from 440 to 720 nm. The transient signals of electron solvation have been analyzed by two kinetic models: a stepwise mechanism and a continuous relaxation model, using a Bayesian data analysis method. The results are compared with those previously published for ethylene glycol (J. Phys. Chem. A 2006, 110, 175) and for propanediols (J. Phys. Chem. A 2007, 111, 4902). From the comparison, it is pointed out that solvation dynamics in glycerol is very fast despite its high viscosity. This is interpreted as the existence of efficient traps for the electrons in glycerol with low potential energy. The small shift of the absorption band of the excess electron indicates that the potential of these traps is very close to that corresponding to the fully solvated electron.
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Affiliation(s)
- J Bonin
- Laboratoire de Chimie Physique/ELYSE, Université Paris-Sud 11, UMR 8000, Bât. 349, Orsay, F-91405, France, and CNRS, Orsay, F-91405, France
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Soroushian B, Lampre I, Bonin J, Pernot P, Pommeret S, Mostafavi M. Solvation dynamics of the electron produced by two-photon ionization of liquid polyols. 1. Ethylene glycol. J Phys Chem A 2007; 110:1705-17. [PMID: 16450999 DOI: 10.1021/jp0540149] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Solvated electrons have been produced in ethylene glycol by two-photon ionization of the solvent with 263 nm femtosecond laser pulses. The two-photon absorption coefficient of ethylene glycol at 263 nm is determined to be beta = (2.1 +/- 0.2) x 10(-11) m W(-1). The dynamics of electron solvation in ethylene glycol has been studied by pump-probe transient absorption spectroscopy. So, time-resolved absorption spectra ranging from 430 to 710 nm have been measured. A blue shift of the spectra is observed for the first tens of picoseconds. Using the Bayesian data analysis method, the observed solvation dynamics are reconstructed with different models: stepwise mechanisms, continuous relaxation models, or combinations of stepwise and continuous relaxation. Comparison between models is in favor of continuous relaxation, which is mainly governed by solvent molecular motions.
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Affiliation(s)
- B Soroushian
- Laboratoire de Chimie Physique/ELYSE, UMR 8000 CNRS/Université Paris-Sud, Centre d'Orsay, Bât. 349, 91405 Orsay Cedex, France
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Lin M, Kumagai Y, Lampre I, Coudert FX, Muroya Y, Boutin A, Mostafavi M, Katsumura Y. Temperature effect on the absorption spectrum of the hydrated electron paired with a lithium cation in deuterated water. J Phys Chem A 2007; 111:3548-53. [PMID: 17429955 DOI: 10.1021/jp070615j] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The absorption spectra of the hydrated electron in 1.0 to 4.0 M LiCl or LiClO4 deuterated water solutions were measured by pulse radiolysis techniques from room temperature to 300 degrees C at a constant pressure of 25 MPa. The results show that when the temperature is increased and the density is decreased, the absorption spectrum of the electron in the presence of a lithium cation is shifted to lower energies. Quantum classical molecular dynamics (QCMD) simulations of an excess electron in bulk water and in the presence of a lithium cation have been performed to compare with the experimental results. According to the QCMD simulations, the change in the shape of the spectrum is due to one of the three p-like excited states of the solvated electron destabilized by core repulsion. The study of s --> p transition energies for the three p-excited states reveals that for temperatures higher than room temperature, there is a broadening of each individual s --> p absorption band due to a less structured water solvation shell.
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Affiliation(s)
- Mingzhang Lin
- Department of Nuclear Engineering and Management, School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan
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Lin M, Mostafavi M, Muroya Y, Han Z, Lampre I, Katsumura Y. Time-Dependent Radiolytic Yields of the Solvated Electrons in 1,2-Ethanediol, 1,2-Propanediol, and 1,3-Propanediol from Picosecond to Microsecond. J Phys Chem A 2006; 110:11404-10. [PMID: 17020250 DOI: 10.1021/jp063764v] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The absorption spectra of the solvated electron in 1,2-ethanediol (12ED), 1,2-propanediol (12PD), and 1,3-propanediol (13PD) have been determined by nanosecond pulse radiolysis techniques. The maximum of the absorption band located at 570, 565, and 575 nm for these three solvents, respectively. With 4,4'-bipyridine (44Bpy) as a scavenger, the molar extinction coefficients at the absorption maximum of the solvated electron spectrum have been evaluated to be 900, 970, and 1000 mol-1 m2 for 12ED, 12PD, and 13PD, respectively. These values are two-thirds or three-fourths of the value usually reported in the literature. With these extinction coefficients, picosecond pulse radiolysis studies have allowed us to depict the radiolytic yield of the solvated electron in these solvents as a function of time from picosecond to microsecond. The radiolytic yield in these viscous solvents is found to be strongly different from that of water solution.
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Affiliation(s)
- Mingzhang Lin
- Department of Nuclear Engineering and Management, School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan
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Han Z, Katsumura Y, Lin M, He H, Muroya Y, Kudo H. Temperature and pressure dependence of the absorption spectra and decay kinetics of solvated electrons in ethanol from 22 to 250°C studied by pulse radiolysis. Chem Phys Lett 2005. [DOI: 10.1016/j.cplett.2005.01.095] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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