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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Variableerature rate coefficients for the electron transfer reaction N _2~+ + H_2O measured with a coaxial molecular beam radio frequency ring electrode ion trap
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Variableerature rate coefficients for the electron transfer reaction N _2~+ + H_2O measured with a coaxial molecular beam radio frequency ring electrode ion trap

机译：同轴分子束射频环形电极离子阱测量电子转移反应N _2〜+ + H_2O的可变速率系数

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摘要

The neutral molecule temperature dependence of the rate coefficient for the electron transfer reaction from H_2O to N_2~+ is determined using a coaxial molecular beam radio frequency ring electrode ion trap (CoMB-RET) method. The temperature of the N_2~+ ions was maintained at 100 K, while the effusive water beam temperature was varied from 300 to 450 K. The result demonstrates the neutral molecule rotational/translational energy dependence on the rate coefficient of an ion-dipolar molecule reaction. It is found that the rate coefficient in the above temperature range follows the prediction of the simplest ion-dipole capture model. Use of different buffer gas collisional cooling in both the ion source and the RET reveals the effects of both translational and vibrational energy of the N_2~+ ions.
机译：使用同轴分子束射频环形电极离子阱（CoMB-RET）方法确定电子从H_2O到N_2〜+的反应速率系数的中性分子温度依赖性。 N_2〜+离子的温度保持在100 K，而流出水的温度从300到450 K不等。结果表明，中性分子的旋转/平移能量取决于离子-偶极分子反应的速率系数。发现在上述温度范围内的速率系数遵循最简单的离子-偶极子捕获模型的预测。在离子源和RET中使用不同的缓冲气体碰撞冷却，揭示了N_2〜+离子的平移和振动能的影响。

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