FLUORESCENCE OF DISSOCIATION FRAGMENTS FROM SUPERSONIC JET-ELECTRON COLLISIONS
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Date
1982
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
Supersonic jets of nitrogen, methane, cyclopropane, and azomethane are crossed with collimated 100 eV electrons. The $CH (B^{2}\Sigma^{-}\rightarrow X^{2}\Pi)$ spectra resulting from the electron induced dissociation of $CH_{4}, C_{3}H_{6}$, and $CH_{3}N = N CH_{3}$ can all be fit with a rotational temperature of $3900\pm 200^{\circ} K$ for electron kinetic energies in the range of 30-100 eV. Fluorescence spectra of ${N_{2}}^{+} (B^{2}{\Sigma_{u}}^{+}\rightarrow X^{2}{\Sigma_{g}}^{+})$ from the dissociative ionization of azomethane yield a rotational temperature of $45^{\circ} K$, which is very similar to the temperature of ${N_{2}}^{+}$ which results from supersonic nitrogen $^{+}e^{-}$ collisions. These results can be used to help understand the mechanism of electron induced molecular dissociation.