Pressure effects in hydrogen atom reactions with frozen propene

Abstract

The yield and distribution of products from the reactions of thermally generated H atoms with frozen propene films at 77 K depend upon the pressure of the hydrogen gas. The changing C₆ product distribution is explained as a consequence of increasing the extent of thermalization of the atoms with increasing pressure. The interaction of vapourized propene with the filament was found to be insignificant from a study of the pyrolysis of gaseous, hydrogen-propene mixtures.