THE PHOTOLYSIS OF DEUTERATED ACETONE AND OF DEUTERATED ACETONE–HYDROGEN MIXTURES

Abstract

The photolyses of acetone, acetone-d6, and acetone-d6 – hydrogen mixtures were investigated at 471 °K. The rates of formation of methane, ethane, and carbon monoxide and the ratio [Formula: see text] were independent of the fractional amount of acetone which photolyzed, as measured by 100[CO]/[A]0, which was varied from <1% to 18%. When the acetone-d6–hydrogen mixtures were photolyzed, [Formula: see text] and [Formula: see text] were observed to be functions of [A]0 and [H2]0. It is postulated that some of the CD4 and CD3H was formed by a reaction between methyl radicals and an excited molecule which contained both C—D and C—H bonds.