The kinetics of CHClBr + HBr ⇄ CH₂ClBr + Br (1,-1), CCl₂Br + HBr ⇄ CHCl₂Br + Br (2,-2) and CClBr₂ + HBr ⇄ CHClBr₂ + Br (3,-3) reactions at 293-787 K has been studied by using the canonical transition state theory with molecular information provided by different quantum chemical methods. The obtained rate constants (in cm³ molecule^-1 s^-1) are k₁=5.24 x 10^-13 exp[-1.47 kcal mol^-1/RT], k_-1=2.70 x 10^-11 exp[-10.21 kcal mol^-1/RT], k₂=4.18 x 10^-13 exp[-2.49 kcal mol^-1/RT], k_-2=6.96x10^-12exp[-7.36 kcal mol^-1/RT], k₃=3.29 x 110^-13 exp[-2.20 kcal mol^-1/RT], and k_-3=8.45x10^-13 exp[-7.10 kcal mol^-1/RT]. Rate constants for (2,-2) and (3,-3) are here reported for the first time.

CHClBr + HBr⇄CH ₂ ClBr + Br（1，-1）， CCl ₂ Br + HBr⇄CHCl ₂ Br + Br（2，-2）和CClBr ₂ + HBr⇄CHClBr ₂ + Br（3，- 3）通过使用规范的跃迁态理论研究了在293-787 K上的反应，并通过不同的量子化学方法提供了分子信息。所获得的速率常数（以cm ³分子^-1 s ^-1为单位）为k ₁ = 5.24 x 10 ^-13 exp [-1.47 kcal mol ^-1 / RT]，k _-1 = 2.70 x 10 ^-11 exp [-10.21 kcal mol ^-1 / RT]，k ₂= 4.18 x 10 ^-13 exp [-2.49 kcal mol ^-1 / RT]，k _-2 = 6.96x10 ^-12 exp [-7.36 kcal mol ^-1 / RT]，k ₃ = 3.29 x 110 ^-13 exp [-2.20 kcal mol ^-1 / RT]，而k _-3 = 8.45x10 ^-13 exp [-7.10 kcal mol ^-1 / RT]。这里首次报告（2，-2）和（3，-3）的速率常数。