Photon-induced thermal desorption of CO from small metal-carbonyl clusters

被引：0

作者：

Lüttgens, G. ^{[1
]}

Pontius, N. ^{[1
]}

Bechthold, P.S. ^{[1
]}

Neeb, M. ^{[1
]}

Eberhardt, W. ^{[1
]}

机构：

[1] Inst. fur Festkorperforschung, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany

来源：

Physical Review Letters | 2002年 / 88卷 / 07期

关键词：

Degrees of freedom (mechanics) - Desorption - Electron scattering - Ground state - Laser pulses - Photoelectron spectroscopy - Pumping (laser) - Rate constants - Relaxation processes;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Thermal desorption of CO from photoexcited free metal-carbonyl clusters was studied using two-color pump-probe photoelectron spectroscopy. A statistical Rice-Ramsperger-Kassel calculation using derived desorption rate constant was used to approximate the unimolecular CO-desorption thresholds of Au2(CO)- and Pt2(CO)5-. It was found that the desorption rate for the two clusters differ due to the different numbers of degree of freedom.

引用

页码：761021 / 761024

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