We present 300 K rate constants for the ion-ion reactions of ${\mathrm{O}}^{+}\mathrm{a}\mathrm{n}\mathrm{d}{\mathrm{N}}^{+}$ with the atomic halide anions: $\mathrm{C}{\mathrm{l}}^{-},\mathrm{B}{\mathrm{r}}^{-},\mathrm{a}\mathrm{n}\mathrm{d}{\mathrm{I}}^{-}$ measured using a flowing afterglow – Langmuir probe apparatus. All six rate constants were $>1\times {10}^{-8}\mathrm{c}{\mathrm{m}}^3{\mathrm{s}}^{-1}$, larger than those typical for atomic ion – atomic ion reactions, approaching the rate constants of more complex ion-ion systems. Evaluation of literature atomic ion – atomic ion rate constants shows variation over orders of magnitude, but limited to below the expected value for a polyatomic ion-ion reaction of the same reduced mass, fitting into an expected physical picture. Unlike for polyatomic systems, estimation of rate constant for atomic ion – atomic ion reaction rates by simple means does not seem effective.

我们给出了300 K的离子速率反应常数 ${\mathrm{Ø}}^{+}\mathrm{一种}\mathrm{ñ}\mathrm{d}{\mathrm{ñ}}^{+}$ 与原子卤化物阴离子： $\mathrm{C}{\mathrm{升}}^{--}，\mathrm{乙}{\mathrm{[R}}^{--}，\mathrm{一种}\mathrm{ñ}\mathrm{d}{\mathrm{一世}}^{--}$使用流动的余辉进行测量– Langmuir探针设备。所有六个速率常数均为$>\mathrm{1个}\times {10}^{--8}\mathrm{C}{\mathrm{米}}^3{\mathrm{s}}^{--\mathrm{1个}}$，比原子离子-原子离子反应的典型值大，接近更复杂的离子系统的速率常数。文献中对原子离子的评估–原子离子速率常数显示出数量级的变化，但仅限于低于相同还原质量的多原子离子反应的预期值，从而符合预期的物理图景。与多原子系统不同，通过简单的方法估算原子离子的速率常数–原子离子反应速率似乎无效。