论文标题
关于通过三体重组形成范德华复合物的形成
On the formation of van der Waals complexes through three-body recombination
论文作者
论文摘要
在这项工作中，我们表明范德华分子X-RG（其中RG是稀有气体原子）可以通过直接的三体重组碰撞（即X + RG + RG $ \ rightarrow $ x-rg + rg）创建。特别是，通过超透明坐标中的经典轨迹方法计算与缓冲气电池实验相关的温度下的三体重组率[J.化学物理。 140，044307（2014）]。结果，发现在缓冲气体电池（1 k $ \ lyssim t \ lissim 10 $ k）中的范德华分子的形成由X-RG相互作用的远距离尾巴（大于Leroy半径大的距离）主导。对于较高的温度，电势的短距离区域变得更加重要。此外，我们注意到，范德尔壁的形成速率与X的化学特性独立于相同的数量级。因此，在适当条件下，几乎所有X-RG分子几乎可以在缓冲液电池中产生并观察到。
In this work, we show that van der Waals molecules X-RG (where RG is the rare gas atom) may be created through direct three-body recombination collisions, i.e., X + RG + RG $\rightarrow$ X-RG + RG. In particular, the three-body recombination rate at temperatures relevant for buffer gas cell experiments is calculated via a classical trajectory method in hyperspherical coordinates [J. Chem. Phys. 140, 044307 (2014)]. As a result, it is found that the formation of van der Waals molecules in buffer gas cells (1 K $\lesssim T \lesssim 10$ K) is dominated by the long-range tail (distances larger than the LeRoy radius) of the X-RG interaction. For higher temperatures, the short-range region of the potential becomes more significant. Moreover, we notice that the rate of formation of van der Walls molecules is of the same order of magnitude independently of the chemical properties of X. As a consequence, almost any X-RG molecule may be created and observed in a buffer gas cell under proper conditions.
