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Infrared action spectroscopy of nitrous oxide on cationic gold and cobalt clusters

MPS-Authors
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Schaller,  Sascha
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Schöllkopf,  Wieland
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Fielicke,  André
Molecular Physics, Fritz Haber Institute, Max Planck Society;
Institut für Optik und Atomare Physik, Technische Universität Berlin;

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Citation

Cunningham, E. M., Green, A. E., Meizyte, G., Gentleman, A. S., Beardsmore, P. W., Schaller, S., et al. (2021). Infrared action spectroscopy of nitrous oxide on cationic gold and cobalt clusters. Physical Chemistry Chemical Physics, 23(1), 329-338. doi:10.1039/D0CP05195K.


Cite as: http://hdl.handle.net/21.11116/0000-0007-F4D7-3
Abstract
Understanding the catalytic decomposition of nitrous oxide on finely divided transition metals is an important environmental issue. In this study, we present the results of a combined infrared action spectroscopy and quantum chemical investigation of molecular N2O binding to isolated Aun+ (n ≤ 7) and Con+ (n ≤ 5) clusters. Infrared multiple-photon dissociation spectra have been recorded in the regions of both the N=O (1000–1400 cm-1) and N=N (2100–2450 cm-1) stretching modes of nitrous oxide. In the case of Aun+ clusters only the ground electronic state plays a role, while the involvement of energetically low-lying excited states in binding to the Con+ clusters cannot be ruled out. There is a clear preference for N-binding to clusters of both metals but some O-bound isomers are observed in the case of smaller Con(N2O)+ clusters.