Doubly charged CO2 clusters formed by ionization of doped helium nanodroplets

被引：9

作者：

Daxner, Matthias ^{[1
]}

Denifl, Stephan ^{[1
]}

Scheier, Paul ^{[1
]}

Echt, Olof ^{[1
,2
]}

机构：

[1] Univ Innsbruck, Inst Ionenphys & Angew Phys, A-6020 Innsbruck, Austria

[2] Univ New Hampshire, Dept Phys, Durham, NH 03824 USA

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 2014年 / 365卷

基金：

奥地利科学基金会;

关键词：

CO2; Doubly charged ions; Appearance size; Fission; Rayleigh instability; Penning ionization; SIZE-DEPENDENT FRAGMENTATION; INDUCED COULOMB EXPLOSION; CARBON-DIOXIDE; ELECTRON-IMPACT; METASTABLE DISSOCIATION; APPEARANCE SIZE; FISSION; CHANNELS; XE; TEMPERATURE;

D O I：

10.1016/j.ijms.2014.01.016

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Helium nanodroplets are doped with carbon dioxide and ionized by electrons. Doubly charged cluster ions are, for the first time, identified based on their characteristic patterns of isotopologues. Thanks to the high mass resolution, large dynamic range, and a novel method to eliminate contributions from singly charged ions from the mass spectra, we are able to observe doubly charged cluster ions that are smaller than the ones reported in the past. The likely mechanism by which doubly charged ions are formed in doped helium droplets is discussed. (C) 2014 The Authors. Published by Elsevier B.V.

引用

页码：200 / 205

页数：6

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