“…At about the same time, Sellevåg et al [17] conducted a separate theoretical study for the highpressure limit and fall-off behavior of the reaction. At higher temperatures, the only direct measurement in the fall-off region was reported by Bates et al [43]; a few indirect evaluations based on shock tube ignition delay times exist, for example, by Pang et al [52] and by Mertens et al [53]. The three recent high-pressure studies (Fernandes et al [18], Sellevåg et al [17], and Bates et al [43]) reported significantly different high-pressure limiting rate constants (k 2,1 ) and center broadening factors (F cent ).…”