Kinetics of the reaction of solvated electrons with benzene in water-ammonia mixtures

1979 ◽  
Vol 83 (3) ◽  
pp. 423-424 ◽  
Author(s):  
U. Schindewolf ◽  
B. Neumann
Keyword(s):  
Solvated Electrons ◽  
Kinetics Of

Kinetics of solvated electrons in reaction with hexamethylphosphoric triamide

1995 ◽  
Vol 91 (21) ◽  
pp. 3809-3812 ◽  
Author(s):  
Céline G. Jung ◽  
Fabienne Peeters ◽  
José Castillo ◽  
Stéphane Boué ◽  
André Fontana
Keyword(s):  
Solvated Electrons ◽  
Hexamethylphosphoric Triamide ◽  
Kinetics Of

Long time kinetics of the reactions of solvated electrons in glasses

Biosystems ◽  
1977 ◽  
Vol 8 (4) ◽  
pp. 287-288
Author(s):  
Itzhak Webman ◽  
Neil R. Kestner
Keyword(s):  
Solvated Electrons ◽  
Long Time ◽  
Kinetics Of

Kinetics of the reaction of solvated electrons with fluorobenzene in liquid ammonia

1977 ◽  
Vol 49 (1) ◽  
pp. 98-100 ◽  
Author(s):  
E. San Roman ◽  
P. Krebs ◽  
U. Schindewolf
Keyword(s):  
Liquid Ammonia ◽  
Solvated Electrons ◽  
Kinetics Of

Radiolysis of Liquid Di-n-propyl Ether: Alcohol Formation and Solvated Electrons

1974 ◽  
Vol 52 (7) ◽  
pp. 1181-1187 ◽  
Author(s):  
Rebecca Arrieta Vermeer ◽  
Gordon R. Freeman
Keyword(s):  
Decay Constant ◽  
Kinetics Model ◽  
Solvated Electrons ◽  
Optical Absorbance ◽  
First Order ◽  
Electron Scavenger ◽  
Practical Limit ◽  
Kinetics Of ◽  
Alcohol Formation ◽  
Ether Alcohol

In the γ radiolysis of pure di-n-propyl ether at 296 K, G(n-propanol) = 2.5 ± 0.1. The propanol yield was reduced by the addition of an electron scavenger (SF6) or proton scavenger (C3H7NH2), but was not affected by the addition of hydrogen chloride or propylene. In the absence of additives the geminate neutralization reaction [7] R2OH+ + esolv− → ROH + R gave 1.8 G units of alcohol. The charge scavenging reactions of SF6 and C3H7NH2 were consistent with the nonhomogeneous kinetics model reported earlier. The optical absorbance of solvated electrons in di-n-propyl ether increased with wavelength up to 1.6 μ, the practical limit of the detector, at all temperatures in the liquid range, including the liquid supercooled to 140 K. (f.p. = 151 K). The kinetics of electron reactions could be measured by observing the absorption at 0.9 μ. The optical absorbance observed as a function of time t at all temperatures was consistent with the kinetics model and had the general form: absorbance = b(t−1/2 + c)e−kt, where b is a proportionality constant, c is related to the free ion yield and k is a first order decay constant that describes the decay of the solvated electron free ions. At 273 K, k(esolv− + SF6) = 4.5 × 1010 M−1 s−1 and the activation energy is 3.2 ± 0.3 kcal/mol.

Spectrum, Kinetics, and Radiation Chemical Yield of Solvated Electrons in Hexamethylphosphoric Triamide

1973 ◽  
Vol 51 (23) ◽  
pp. 3905-3913 ◽  
Author(s):  
Eric A. Shaede ◽  
Leon M. Dorfman ◽  
Garry J. Flynn ◽  
David C. Walker
Keyword(s):  
Pulse Radiolysis ◽  
Chemical Yield ◽  
Molar Absorptivity ◽  
Solvated Electrons ◽  
Experimental Conditions ◽  
Hexamethylphosphoric Triamide ◽  
Radiation Chemical ◽  
Optical Absorption Band ◽  
Bromide Ion ◽  
Kinetics Of

The spectrum, yield, and kinetics of solvated electrons in hexamethylphosphoric triamide were investigated by the pulse radiolysis method. The optical absorption band is in the infrared with a maximum at 2200 ± 100 nm. The molar absorptivity at this maximum is (3.2 ± 0.5) × 104 M−1 cm−1, and the oscillator strength for the transition is estimated to be f = 0.7 ± 0.2. A free ion yield of G(es−) = 2.3 + 0.4 solvated electrons/100 eV was determined from the observed yields of anthracene and pyrene radical anions formed by electron attachment.Kinetic studies provided values of the rate constants for the reaction of solvated electrons with anthracene and N2O. The decay mechanism of the solvated electrons in the absence of added solutes was found to be complex, and the half-life (in the range of 2 to 50 μs) was dependent on experimental conditions. A second transient species, absorbing at wavelengths below 500 nm, was observed but not identified. In solutions containing bromide ion the species Br2− was observed. The pulse radiolysis of stable solutions of es−, formed by dissolving sodium metal in HMPA, is also reported.

Erratum: Kinetics of the Reaction Between Solvated Electrons and Water in Ethylenediamine

1964 ◽  
Vol 40 (6) ◽  
pp. 1773-1773
Author(s):  
R. R. Dewald ◽  
J. L. Dye ◽  
M. Eigen ◽  
L. de Maeyer
Keyword(s):  
Solvated Electrons ◽  
Kinetics Of
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