Issue 40, 2008

The adsorption of CO on group 10 (Ni, Pd, Pt) transition-metal clusters

Abstract

The adsorption of a single CO molecule on clusters of the Group 10 transition metals is characterized by infrared multiple photon dissociation (IR-MPD) spectroscopy. The cationic, neutral, and anionic carbonyl complexes contain between 3 and up to 25 metal atoms. The C–O stretching frequency ν(CO) shows that while both nickel and platinum clusters adsorb CO only in atop positions, palladium clusters exhibit a variety of binding sites. These findings can be rationalized by considering the increasing role relativistic effects play in the electronic structure of the cluster complexes going down the group. Conclusions for the cluster-support interactions for size-selected supported particles are drawn from the charge dependence of ν(CO) for the gas-phase species.

Graphical abstract: The adsorption of CO on group 10 (Ni, Pd, Pt) transition-metal clusters

Article information

Article type
Paper
Submitted
16 May 2008
Accepted
30 Jun 2008
First published
05 Sep 2008

Phys. Chem. Chem. Phys., 2008,10, 6144-6149

The adsorption of CO on group 10 (Ni, Pd, Pt) transition-metal clusters

P. Gruene, A. Fielicke, G. Meijer and D. M. Rayner, Phys. Chem. Chem. Phys., 2008, 10, 6144 DOI: 10.1039/B808341J

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