Abstract

An uncollimated molecular beam (free jet) of CO and O 2 molecules incident on a polycrystalline Pt surface at 775 K in vacuo produces vibrationally hot CO 2 molecules at a density sufficient for infrared emission spectrometry. Analysis of spectra at a resolution of 0.1 cm −1 clearly shows that nascent product molecules have much more internal excitation than would be the case for equilibrium at the surface temperature.

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