The Rate Constants for the Reactions of Ozone with Triphenylphosphite and Triphenylphosphine

Abstract

The stoichiometry and rate constants for the reaction of triphenylphosphite and triphenylphosphine with ozone were measured at several temperatures. The rate was first order in each reactant, with k = (3 ± 1) × 104 and (5 ± 2) × 103 M−1 s−1 respectively, for the reaction of ozone with triphenylphosphine and triphenylphosphite (2,4-dimethylhexane, −90°). The reaction of ozone with triphenylphosphite has a low activation energy in carbon tetrachloride. The stoichiometry was 1:1 for both compounds under these conditions.