TY - JOUR
T1 - Corroding the chromium cation
AU - Beyer, Martin K.
AU - Berg, Christian B.
AU - Achatz, Uwe
AU - Joos, Stefan
AU - Niedner-Schatteburg, Gereon
AU - Bondybey, Vladimir E.
N1 - Funding Information:
Financial support from the Deutsche Forschungs-gemeinschaft and the Fonds der Chemischen Industrie is gratefully acknowledged.
PY - 2001/5/10
Y1 - 2001/5/10
N2 - Two [Cr, O2]+ isomers have been selectively produced and studied by FT-ICR mass spectrometry. The Cr(O2)+ 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(O2)+, 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.
AB - Two [Cr, O2]+ isomers have been selectively produced and studied by FT-ICR mass spectrometry. The Cr(O2)+ 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(O2)+, 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.
UR - http://www.scopus.com/inward/record.url?scp=0035837956&partnerID=8YFLogxK
U2 - 10.1080/00268970010027657
DO - 10.1080/00268970010027657
M3 - Article
AN - SCOPUS:0035837956
SN - 0026-8976
VL - 99
SP - 699
EP - 702
JO - Molecular Physics
JF - Molecular Physics
IS - 9
ER -