The correlation of rate coefficients for H‐atom abstraction by HO radicals with CH bond dissociation enthalpies

For H‐atom abstraction reactions by HO radicals it has been shown that equation image If Di is taken as the CH bond dissociation enthalpy at 298 K, then a = 0.323 and D0is obtained from the empirical formula where D0 is in kcal/mol and T is in K. Thisrelationship is valid for T between 200 and 400 K. Finally empiricalrelationships are given to help estimate Di.