Gas-phase thorium molecules from laser ablation

被引：1

作者：

Fischer, Paul ^{[1
]}

Stricker, Jonas ^{[2
,3
,4
]}

Duellmann, Christoph E. ^{[2
,3
,4
,5
]}

Renisch, Dennis ^{[2
,3
,4
]}

Schweikhard, Lutz ^{[1
]}

Tantardini, Christian ^{[6
,7
]}

机构：

[1] Univ Greifswald, Inst fir Phys, D-17487 Greifswald, Germany

[2] Johannes Gutenberg Univ Mainz, PRISMA Cluster Excellence, D-55099 Mainz, Germany

[3] Johannes Gutenberg Univ Mainz, Dept Chem, D-55099 Mainz, Germany

[4] Helmholtz Inst Mainz, D-55099 Mainz, Germany

[5] GSI Helmholtzzentrum Fir Schwerionenforschung GmbH, D-64291 Darmstadt, Germany

[6] UiT Arctic Univ Norway, Hylleraas Ctr, Dept Chem, N-9037 Tromso, Norway

[7] Rice Univ, Dept Mat Sci & Nanoengn, Houston, TX 77005 USA

来源：

PHYSICAL REVIEW RESEARCH | 2024年 / 6卷 / 04期

关键词：

IONIZATION-POTENTIALS; ELECTRONIC-STRUCTURE; MASS-SPECTROMETRY; ACTINIDE; CHEMISTRY; APPROXIMATION; FLUORESCENCE; LANTHANIDE; ACTIVATION; CAPTURE;

D O I：

10.1103/PhysRevResearch.6.043317

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Laser ablation is performed on an oxidized, roughly 35-year-old 232Th foil. The produced anionic and cationic molecules are investigated utilizing precision mass measurements by a multireflection time-of-flight mass spectrometer. Molecules with up to three thorium atoms are identified. This includes oxides ThnO+x containing up to 2n - 1 oxygen atoms and further species incorporating carbon or nitrogen. In addition, signals of U+, UO+, and the compound species ThUO+2 are found. Photoexcitation reveals selected molecules' dissociation patterns. The experimental findings are compared to density functional theory calculations.

引用

页数：13

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