Constraining the mechanism and kinetics of OH + N[O.sub.2] and H[O.sub.2] + NO using the multiple-well master equation

An attempt is made to simulate both bioexponential and isotopic scrambling kinetics data with a multiple-well master-equation simulation. These constrain key properties of the short-lived HOONO intermediate, observations of both conformers of the HOONO intermediate itself, isotopic scrambling data for [sup.18.O]H+N[O.sub.2] and observations of HON[O.sub.2] production from the H[O.sub.2] + N reaction.