Probing C–O bond activation on gas-phase transition metal clusters: Infrared multiple photon dissociation spectroscopy of Fe, Ru, Re, and W cluster CO complexes

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DOIResolve DOI: http://doi.org/10.1063/1.3257687
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TypeArticle
Journal titleChemical Physics
Volume131
Issue18
Pages184706-1184706-7; # of pages: 7
Subjectcarbon monoxide; iron; ruthernium; rhenium; tungsten; photon
AbstractThe binding of carbon monoxide to iron, ruthenium, rhenium, and tungsten clusters is studied by means of infrared multiple photon dissociation spectroscopy. The CO stretching mode is used to probe the interaction of the CO molecule with the metal clusters and thereby the activation of the C–O bond. CO is found to adsorb molecularly to atop positions on iron clusters. On ruthenium and rhenium clusters it also binds molecularly. In the case of ruthenium, binding is predominantly to atop sites, however higher coordinated CO binding is also observed for both metals and becomes prevalent for rhenium clusters containing more than nine atoms. Tungsten clusters exhibit a clear size dependence for molecular versus dissociative CO binding. This behavior denotes the crossover to the purely dissociative CO binding on the earlier transition metals such as tantalum.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Steacie Institute for Molecular Sciences
Peer reviewedYes
NPARC number15207455
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Record identifierad1dbce6-a2b5-44f2-b58e-8f11e7574195
Record created2010-07-12
Record modified2016-05-09
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