Metastability of gold-carbonyl cluster complexes, AuN(CO)-M

W. T. Wallace, R. L. Whetten

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Smaller gold-cluster anions, typified by Au-7, adsorb multiple CO molecules in a high-pressure, room-temperature flow-reactor, tending toward previously unknown saturation compositions, Au7(CO)-4. The weakness of the gold-carbonyl adsorption bond is evidenced indirectly by the high CO partial pressure required and more directly by the high probability of fragmentation in the field-free flight region of the reflectron-type time-of-flight mass spectrometer. The analysis of this metastability reveals that the actual distribution fN,M of products Au7(CO)-M in the reactor may be highly non-statistical, e.g. with only even-M species present.

Original languageEnglish (US)
Pages (from-to)123-126
Number of pages4
JournalEuropean Physical Journal D
Issue number3
StatePublished - Sep 2001
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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