Abstract:
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.
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Received 17 April 2001
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Wallace, W., Whetten, R. Metastability of gold-carbonyl cluster complexes, Au N(CO) M - . Eur. Phys. J. D 16, 123–126 (2001). https://doi.org/10.1007/s100530170075
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DOI: https://doi.org/10.1007/s100530170075