O(Singlet S) Quenching by Ground State Oxygen Atoms.

摘要

The quenching of O(Singlet S) by O(Triplet P) was measured as a function of temperature, between 200 K and 365 K. The resulting Arrhenius expression is k=5.0x10 to the -11th power exp(-610/RT) cc/molecule sec. The possible effect of O3 on the measurements was considered, and it is concluded that O3 does not contribute to the observed quenching. A sizable discrepancy now exists for this reaction between experiment and the most recent theoretical calculations. (Author)