Photon-induced thermal desorption of CO from small metal-carbonyl clusters.
Photon-induced thermal desorption of CO from small metal-carbonyl clusters.
复制标题
光子诱导小金属羰基团簇中 CO 的热解吸。
DOI：
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复制
发表时间：
2002
影响因子：
8.6
通讯作者：
W. Eberhardt
中科院分区：
文献类型：
--
作者：
G. Lüttgens;N. Pontius;P. S. Bechthold;M. Neeb;W. Eberhardt
Thermal CO desorption from photoexcited free metal-carbonyl clusters has been resolved in real time using two-color pump-probe photoelectron spectroscopy. Sequential energy dissipation steps between the initial photoexcitation and the final desorption event, e.g., electron relaxation and thermalization, have been resolved for Au2(CO)(-) and Pt2(CO)5-. The desorption rates for the two clusters differ considerably due to the different numbers of vibrational degrees of freedom. The unimolecular CO-desorption thresholds of Au2(CO)(-) and Pt2(CO)5- have been approximated by means of a statistical Rice-Ramsperger-Kassel calculation using the experimentally derived desorption rate constants.
