Solvation structure of excess electrons in ethanol and ethanol/2-methyltetrahydrofuran mixtures

Journal Article · Thu Jul 27 04:00:00 EDT 1989 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100352a057· OSTI ID:6986005

Ichikawa, Tsuneki; Yoshida, Hiroshi ^[1]

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1. Hokkaido Univ., Sapporo (Japan)

The solvation structures of excess electrons in {gamma}-irradiated ethanol and ethanol/2-methyltetrahydrofuran mixtures at 77 K have been determined by analyzing their optical absorption spectra. In the mixed matrices, the electrons show 5 spectral components with the absorption maxima at the wavenumbers 8.3, 10.2, 13.5, 16.6, and 19.0 {times} 10{sup 3} cm{sup {minus}1}, respectively. The relative intensities of these components depend on the concentration of ethanol. The first component is the same as the absorption spectrum of excess electrons in neat 2-methyltetrahydrofuran. The second, the third, the fourth, and the fifth components are due to the excess electrons solvated by one, two, three, and four ethanol molecules, respectively, with the molecular dipoles pointing toward the electron. In neat ethanol, two-third of the excess electrons are solvated by 4 ethanol molecules, with the molecular dipoles pointing toward the electron. The remaining electrons are also surrounded by four ethanol molecules. However, the molecular dipole of one of the four ethanol molecules does not point toward the electron. The possible structure of the electron localized in water is also discussed.

• OSTI ID: 6986005
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 93:15; ISSN JPCHA; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400000* -- Chemistry
400200 -- Inorganic
Organic
& Physical Chemistry
ABSORPTION SPECTRA
ALCOHOLS
DATA
DATA ANALYSIS
ELECTRONS
ELEMENTARY PARTICLES
ETHANOL
EXPERIMENTAL DATA
FERMIONS
HYDROXY COMPOUNDS
INFORMATION
LEPTONS
LOW TEMPERATURE
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
SOLVATED ELECTRONS
SPECTRA