Laboratory Astrophysics Group of the Max Planck Institute for Astronomy at the Friedrich Schiller University Jena, Institute of Solid State Physics, Helmholtzweg 3, D-07743 Jena, Germany.
J Phys Chem A. 2011 Jun 30;115(25):7120-6. doi: 10.1021/jp112423v. Epub 2011 Apr 12.
The doping of He droplets by Al atoms and their reactions with H(2)O and O(2) at T = 0.37 K was investigated. It was found that at high doping concentrations, the incorporated Al atoms do not aggregate to form clusters. They rather remain as separated atoms inside of the He droplets. Mass spectrometry and the recently developed depletion method have been applied to study the reactions. It was found that single Al atoms react with single O(2) molecules. The dominant product of this reaction occurring inside of the He droplets is AlO(2). The reaction between Al and O(2) clusters has also been detected. The Al clusters react with single H(2)O molecules or clusters. While single Al atoms react with H(2)O clusters, no reaction of single Al atoms with a single water molecule was found.
研究了 T = 0.37 K 时 He 液滴中 Al 原子的掺杂及其与 H(2)O 和 O(2)的反应。结果发现，在高掺杂浓度下，掺入的 Al 原子不会聚集形成团簇。相反，它们在 He 液滴内部保持为分离的原子。质谱和最近开发的耗尽法已被应用于研究这些反应。结果表明，单个 Al 原子与单个 O(2)分子反应。此反应在 He 液滴内部的主要产物是 AlO(2)。还检测到 Al 与 O(2)团簇之间的反应。Al 团簇与单个 H(2)O 分子或团簇反应。虽然单个 Al 原子与 H(2)O 团簇反应，但未发现单个 Al 原子与单个水分子的反应。
