Formation of H3 + in Collisions of H2 + with H2 Studied in a Guided Ion Beam Instrument.,ChemPhysChem

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Formation of H3 + in Collisions of H2 + with H2 Studied in a Guided Ion Beam Instrument.
ChemPhysChem ( IF 2.3 ) Pub Date : 2020-06-03 , DOI: 10.1002/cphc.202000258
Igor Savić ₁ , Stephan Schlemmer ₂ , Dieter Gerlich ₃

Affiliation

In order to study collisions between ions and neutrals, a new Guided Ion Beam (GIB) apparatus, called NOVion, has been assembled and tested. The primary purpose of this instrument is to measure absolute cross sections at energies relevant for technical or inter‐ and circumstellar plasmas. New and improved results are presented for forming H₃⁺ in collisions of H₂⁺ with H₂. Between 0.1 eV and 2 eV, our measured effective cross sections are in good overall agreement with most previous measurements. However, at higher energies, our results do not show the steep decline, recommended in the standard literature. After critical evaluation of all experimental and theoretical data, a new analytical function is proposed, describing properly the dependence of the title reaction on the collision energy up to 10 eV.

中文翻译：

在导向离子束仪器中研究了H2 +与H2碰撞中H3 +的形成。

为了研究离子与中性离子之间的碰撞，一种名为NOVion的新型导向离子束（GIB）装置已经过组装和测试。该仪器的主要目的是测量与技术或星际等离子体和星际等离子体相关的能量的绝对截面。提出了新的和改进的结果，用于在H ₂⁺与H _2的碰撞中形成H ₃⁺。在0.1 eV和2 eV之间，我们测得的有效横截面与大多数以前的测量结果总体上吻合良好。但是，在高能量下，我们的结果并未显示标准文献中推荐的急剧下降。在对所有实验和理论数据进行严格评估之后，提出了一个新的分析函数，恰当地描述了标题反应对高达10 eV的碰撞能量的依赖性。

更新日期：2020-06-03

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