Open AccessGold Cluster Carbonyls: Vibrational Spectroscopy of the Anions and the Effects of Cluster Size, Charge, and Coverage on the CO Stretching Frequency
Author(s) -
André Fielicke,
Gert von Helden,
Gerard Meijer,
Benoît Simard,
D. M. Rayner
Publication year - 2005
Publication title -
the journal of physical chemistry b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.864
H-Index - 392
eISSN - 1520-6106
pISSN - 1520-5207
DOI - 10.1021/jp055856a
Subject(s) - chemistry , cluster (spacecraft) , dissociation (chemistry) , gold cluster , spectroscopy , infrared spectroscopy , cationic polymerization , molecular vibration , cluster size , chemical physics , photochemistry , analytical chemistry (journal) , crystallography , computational chemistry , density functional theory , molecule , electronic structure , physics , organic chemistry , chromatography , quantum mechanics , computer science , programming language
We report the vibrational spectra of the carbonyl complexes of anionic gold clusters in the range of the CO stretching frequency as measured in the gas phase using IR multiple photon dissociation spectroscopy. The investigated complexes contain between 3 and 14 Au atoms and up to 7 CO ligands. Special attention is given to the complexes that exhibit saturation CO coverage as well as to the monocarbonyl species. In conjunction with data from the corresponding cationic complexes we quantify how the CO stretching frequency varies with the charge state of the gold cluster. Our results provide a size- and charge-dependent basis to interpret values of the CO stretching frequency measured for CO on deposited gold clusters in terms of the charge states of the clusters.
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