Solvation time of the electron in polar liquids. Water and alcohols

Journal Article · Thu Dec 18 04:00:00 EST 1975 · J. Phys. Chem., v. 79, no. 26, pp. 2835-2845

DOI:https://doi.org/10.1021/j100593a007· OSTI ID:4086584

Chase, W J; Hunt, J W

The formation of e$sup -$/sub sol/ from its precursor, e$sup -$/sub t/, was investigated in the temperature range from -65 to 60$sup 0$C using a stroboscopic pulse radiolysis (SPR) system. The rate of formation of e$sup -$/ sub sol/, measured at 600 nm, and rate of decay of e$sup -$/sub t/, measured at 1300 nm, are the same; the rate of decay of e$sup -$/sub t/ is slower by as much as a factor of 2 when measured at 1050 nm. At 20$sup 0$C the values of tau/sub sol/ are 10.7 +- 1, 23 +- 2, 34 +- 3, and 39 +- 5 psec for methanol, ethanol, 1- propanol, and 1-butanol, respectively. At 20$sup 0$C tau/sub sol/ is estimated to be less than 3 psec for H$sub 2$O and D$sub 2$O. In all of the alcohols tested there is a good correlation between tau/sub sol/ and the dielectric relaxation time, tau$sub 2$, for rotation of the molecules over a wide range of temperatures; this suggests that intermolecular hydrogen bonding does not limit the rate of electron solvation. (auth)

• Research Organization: Univ. of Toronto
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-019721
• OSTI ID: 4086584
• Journal Information: J. Phys. Chem., v. 79, no. 26, pp. 2835-2845, Journal Name: J. Phys. Chem., v. 79, no. 26, pp. 2835-2845; ISSN JPCHA
• Country of Publication: United States
• Language: English

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*BUTANOLS-- RADIOLYSIS
*ETHANOL-- RADIOLYSIS
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*METHANOL-- RADIOLYSIS
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*SOLVATED ELECTRONS-- PRODUCTION
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400600* --Chemistry--Radiation Chemistry
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N40300* --Chemistry--Radiation Chemistry
PULSED IRRADIATION
RADIATION CHEMISTRY
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