Radiolysis of methanol and methanolic solutions. V. The acid effect

Suryanarayanan, K.; Lichtin, Norman N.

doi:10.1021/j100725a036

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…The yield of solvated free electrons, G ji 8= 1.05 agrees well with those obtained by other workers, [15][16][17][18][19][20][21][22]24,27 with the exception of certain values reported which were significantly higher, and ,.....,2.0. 23 ,25--27 These latter values were obtained by methods involving measurements of N2 production from irradiated alcoholic solutions of N 2 0.…”

Section: Solvated Electron Yieldssupporting

confidence: 89%

Electron Scavenging in γ-Irradiated Liquid Methanol and Ethanol

Rzad

Fendler

1970

The Journal of Chemical Physics

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Articles you may be interested inOn the solvation of the trapped electron in γirradiated deuterated ethanol glass at 4 K Electron scavenging in liquid methanol and ethanol has been examined as a function of 14CHaBr and SF& concentration in the region from 10-5 to 0.3 M. The empirical scavenging model previously proposed for hydrocarbons can be successfully extended to alcohols if a competitive first-order reaction of the s?lvated free electron is included. Solvated free-electron and geminate-electron yields have been determmed to be 1.05 and 3.1. Analysis of the data from competitive experiments leads to an estimation of ~he absolute rate constants for reaction of solvated electrons with CHaBr, CHaC!, SF&, N.D, and acetone m methanol and ethanol and to an estimation of the half-life of the solvated free electrons in both solvents. The present results in ethanol can be correlated with the observations of Thomas and Bensasson on the nanosecond decay of solvated electrons in terms of an ion-pair lifetime distribution function similar to that applicable to hydrocarbon radiolysis.

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Section: Solvated Electron Yieldssupporting

confidence: 89%

Electron Scavenging in γ-Irradiated Liquid Methanol and Ethanol

Rzad

Fendler

1970

The Journal of Chemical Physics

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“…The most recently measured absolute values of the half-life of reaction (7) in methanol arc 2.2 and 3.2 ps. 29 Minimum values are 3, 2 and 5 p for ethanol, l-propanol and 2-propanol respe~tively.~~ Typical free ion concentrations produced by the pulse are (3-10) x lo-' mo1L-l in methanol and (1-2) x moll.-l in the other alcohols. These are much larger than the concentrations present as a result of autoionization of the solvents, or methanol apart, as impurity ions.…”

Section: Rate Constantsmentioning

confidence: 98%

Pulse radiolytic induced transient electrical conductance in liquid solutions. Part 4.—The radiolysis of methanol, ethanol, 1-propanol and 2-propanol

Fowles¹

1971

Trans. Faraday Soc.

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The rate constants and Arrhenius activation energies for the reaction of ROH: with RO-in the liquid state have been measured for R = CH3, C2H5, l-C3H7 and 2-C3H7. The values at 25°C are 7.05 x lO'O, 3.0 ; 4.59 x lo1', 4.3 ; 2.40 x lO'O, 5.9 ; and 1.50 x 1O1O 1. mol-1 s-I and 7.3 kcalmol-1 respectively. Evidence is presented that, for all the solvents studied (a) the rate coefficients for ROH:+e; are nearly the same as the above, (b) the rate data (including the effect of traces of water) are adequately accounted for by diffusion theory, (c) A(e;) m A(R0-) and ( d ) g (free-ions) M 2.1-* research carried out at A.E.R.E., Harwell, Berks. t g(z) denotes the yield in molecules per 100 eV of a transient species Z.

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