Spectrum and Reactivity of the Solvated Electron in the Ionic Liquid

Published

January 1, 2003

Author(s)

James F. Wishart, Pedatsur Neta

Abstract

st pulse radiolysis transient absorption experiments were conducted on the ionic liquid methyltributylammonium bis(tribluoromethylsulfonyl)imide (R₄NNTf₂). The solvated electron was observed to have a very broad absorption band peaking at 1400 nm (ε = 2.4 x 10⁴ M^-1 cm^-1) and a radiolytic yield (G) of 0.6 x 10^-7 mol J^-1. Dry electron capture by aromatic solutes, such as benzophenone and pyrene, is very efficient in R₄NNTf₂. Reactions of the solvated electron with the same compounds are diffusion limited, with rate constants of only knearly} 1 -2 x 10⁸ M^-1 S^-1 due to the high viscosity of the ionic liquid.

Citation

Journal of Physical Chemistry

Pub Type

Journals

Keywords

absorption spectrum, benzophenone, Ionic liquids, phenanthrene, pulse radiolysis, pyrene, rate constants, solvated electron

Citation

Wishart, J. and Neta, P. (2003), Spectrum and Reactivity of the Solvated Electron in the Ionic Liquid, Journal of Physical Chemistry (Accessed August 10, 2025)