Protonated and Cationic Helium Clusters

Molecules

Christian Leidlmair¹  Michael Gatchell¹  Linnea Lundberg¹  Peter Bartl¹  Paul Scheier¹ 

[1] Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck, Technikerstr. 25, A-6020 Innsbruck, Austria;

关键词: helium clusters;    protonation;    helium droplets;    noble gases;    mass spectrometry;   

DOI  :  10.3390/molecules25051066

来源: DOAJ

【 摘 要 】

Protonated rare gas clusters have previously been shown to display markably different structures compared to their pure, cationic counterparts. Here, we have performed high-resolution mass spectrometry measurements of protonated and pristine clusters of He containing up to 50 atoms. We identify notable differences between the magic numbers present in the two types of clusters, but in contrast to heavier rare gas clusters, neither the protonated nor pure clusters exhibit signs of icosahedral symmetries. These findings are discussed in light of results from heavier rare gases and previous theoretical work on protonated helium.

【 授权许可】

Unknown