Corroding the chromium cation

被引：18

作者：

Beyer, MK ^{[1
]}

Berg, CB ^{[1
]}

Achatz, U ^{[1
]}

Joos, S ^{[1
]}

Niedner-Schatteburg, G ^{[1
]}

Bondybey, VE ^{[1
]}

机构：

[1] Tech Univ Munich, Inst Phys & Theoret Chem, D-85747 Garching, Germany

来源：

MOLECULAR PHYSICS | 2001年 / 99卷 / 09期

关键词：

D O I：

10.1080/00268970010027657

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two [Cr; O-2](+) isomers have been selectively produced and studied by FT-ICR mass spectrometry. The Cr(O-2)(+) complex was formed by supersonically expanding a plasma produced by laser vaporization of chromium metal with the helium carrier gas, which was seeded with traces of oxygen, while the chromyl cation is formed in an expansion with N2O. The complex is stable against thermal collisions, but in a bimolecular reaction with water it is rapidly converted to the chromyl cation, with ligand exchange being only a minor side reaction. Isotopic studies suggest a side-on geometry for Cr(O-2)(+), in accordance with density functional (B3LYP) calculations. The present work indicates that an investigation of the selected isomers can indeed be carried out, if appropriate chemical methods for the ion generation are applied.

引用

页码：699 / 702

页数：4

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