Transients and specific rates of some reactions of the solvated electron with inorganic ions in liquid ammonia investigated by nanosecond pulse radiolysis at 23.degree.C

1976 ◽  
Vol 80 (24) ◽  
pp. 2635-2641 ◽  
Author(s):  
Farhataziz ◽  
Pierre Cordier
Keyword(s):  
Pulse Radiolysis ◽  
Liquid Ammonia ◽  
Inorganic Ions ◽  
Nanosecond Pulse ◽  
Solvated Electron

Transient spectrum from nanosecond pulse radiolysis of liquid ammonia

1974 ◽  
Vol 27 (2) ◽  
pp. 241-244 ◽  
Author(s):  
J. Belloni ◽  
P. Cordier ◽  
J. Delaire
Keyword(s):  
Pulse Radiolysis ◽  
Liquid Ammonia ◽  
Nanosecond Pulse

Comparison of solvated electron reaction rates in water and ammonia

1977 ◽  
Vol 55 (11) ◽  
pp. 2159-2164 ◽  
Author(s):  
U. Schindewolf ◽  
P. Wünschel
Keyword(s):  
Rate Constant ◽  
Liquid Ammonia ◽  
Inorganic Ions ◽  
Reaction Rates ◽  
The Other ◽  
Solvated Electron ◽  
Aromatic Molecules ◽  
Rate Determining Step ◽  
Diffusion Controlled ◽  
Electrostatic Contribution

New and literature data of solvated electron reactions in ammonia with some inorganic ions and organic neutral molecules are compared with corresponding data in water. In ammonia only a few reactions with aromatic molecules are diffusion controlled and therefore faster than in water (k ≈ 1 × 1011 and 1 × 1010 M−1 s−1,respectively). After correcting for the electrostatic contribution to the rate constant of the other reactions it is concluded that in general the reactivity of the solvated electron in ammonia is appreciably lower, than in water. For the slow reactions of ammoniated electrons with acetonitrile and dimethylsulfoxide we find activation energies of 7 to 9 kcal/mol and activation volumes of −40 to −60 ml/mol. In these reactions it is suggested that the rate determining step is associated with the collapse of the large electron cavity in liquid ammonia.

A nanosecond pulse radiolysis study of the hydrated electron with high energy ions with a narrow velocity distribution

2004 ◽  
Vol 385 (1-2) ◽  
pp. 66-71 ◽  
Author(s):  
G. Baldacchino ◽  
G. Vigneron ◽  
J.-P. Renault ◽  
S. Pin ◽  
Z. Abedinzadeh ◽  
...  
Keyword(s):  
Velocity Distribution ◽  
Pulse Radiolysis ◽  
High Energy ◽  
Nanosecond Pulse ◽  
Hydrated Electron ◽  
High Energy Ions

Étude par radiolyse pulsée des propriétés spectrales et cinétiques de l'électron solvaté dans l'hexane-1,2,6-triol liquide

1995 ◽  
Vol 73 (1) ◽  
pp. 117-122 ◽  
Author(s):  
J.-P. Jay-Gerin ◽  
J. Chevrel ◽  
C. Ferradini ◽  
E. Ray ◽  
M.H. Klapper ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
Optical Absorption ◽  
Linear Accelerator ◽  
Pulse Radiolysis ◽  
Order Reaction ◽  
Kinetic Properties ◽  
Solvated Electron ◽  
Solvent Viscosity ◽  
First Order ◽  
Short Times

The optical absorption spectrum of the solvated electron (es−) in liquid hexane-1,2,6-triol has been measured by nanosecond pulse radiolysis at different temperatures (10–40 °C) to investigate the influence of high solvent viscosity values on the spectral and kinetic properties of es−. The wavelength at the absorption maximum, λmax, is equal to 560 nm, and its variation with temperature, if it exists in the considered zone, is less than the experimental error. At 20 °C and 150 ns, the value of the product [Formula: see text] of the yield of es− and the molar extinction coefficient at λmax is 2.55 × 104 molecule/(M cm 100 eV). In the context of this work, we have compared results obtained with both a linear accelerator and a Febetron, a comparison that has allowed us to evaluate the influence of variations of the dose per pulse and to extend measurements to short times. In the case of experiments performed with the linear accelerator, es− is found to decay at all wavelengths by a first-order reaction (or by a pseudo-first-order reaction) with an activation energy of ~45 kJ mol−1. By contrast, kinetic curves obtained with the Febetron seem to show a competition in which a second-order law is followed at short times. The fact that the shape of the spectra seems to vary as a function of the dose per pulse indicates the possible intervention of another species whose formation is favored by the use of high radiation doses. In other respects, the kinetics of electron solvation does not seem to be controlled by the viscosity of the solvent in our experimental conditions. Keywords: liquid hexane-1,2,6-triol, pulse radiolysis, linear accelerator and Febetron, solvated electron, optical absorption spectrum, kinetic properties, solvent viscosity, dose and temperature effects.

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