Electron attachment to benzene and toluene in nonpolar solvents at high pressure

Journal Article · Thu Dec 13 04:00:00 EST 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100388a021· OSTI ID:5941758

Itoh, Kengo; Holroyd, R ^[1]

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1. Brookhaven National Lab., Upton, NY (USA)

The effect of dilute concentrations of the aromatic hydrocarbons benzene and toluene on the electron mobility in some nonpolar liquids was studied as a function of pressure from 1 bar to 3 kbar and as a function of temperature from 20 to 100{degree}C. These aromatics have no effect on the electron mobility in n-pentane at low pressure and no effect on the mobility in tetramethylsilane at any pressure or temperature studied. However, above 1 kbar the mobility in n-pentane is reduced by the presence of these aromatics, an effect which increases with pressure. This effect is attributed to reversible electron attachment: e{sub s}{sup {minus}} + aromatic {r reversible} aromatic{sup {minus}}. This equilibrium is shifted to favor the anions at high pressure both because the electron in the solvent becomes destabilized and because the volume change is large and negative, of the order of {minus}100 cm{sup 3}/mol. The results indicate that the benzene anion is more stable than the toluene anion in solution.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5941758
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 94:25; ISSN 0022-3654; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKYLATED AROMATICS
AROMATICS
BENZENE
DATA
ELECTRON ATTACHMENT
EXPERIMENTAL DATA
HYDROCARBONS
INFORMATION
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
PRESSURE EFFECTS
TEMPERATURE EFFECTS
TOLUENE