Product vibrational distributions and collision energy dependence of chemiluminescent reactions of group IVA elements with O2, N2O, and NO2

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Computer simulations of the observed spectra in reactions of group IVA elements with oxygen donors yield information on the product vibrational distributions in the electronically excited states of group IVA oxides. The observed vibrational distributions have been compared with the prior predictions. While the vibrational distributions resulting from the Ge2+O2 reaction show statistical behavior, those of products formed in the Si+N2O reaction are found to be much hotter than the prior distributions. Also, time-of-flight studies have been conducted to determine the collision energy dependence of the reactive rate coefficients and the cross sections for these chemiluminescent reactions.