Resonant Ionization Using IR Light:  A New Tool To Study the Spectroscopy and Dynamics of Gas-Phase Molecules and Clusters

Resonant IR excitation of gas-phase molecules and clusters can lead to superhot species that thermally emit an electron. Monitoring the mass selected ion yield as a function of IR laser frequency yields the IR-REMPI (infrared resonance enhanced multiphoton ionization) spectrum of the molecule or clu...

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Bibliographic Details
Published inThe journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Vol. 107; no. 11; pp. 1671 - 1688
Main Authors von Helden, Gert, van Heijnsbergen, Deniz, Meijer, Gerard
Format Journal Article
LanguageEnglish
Published American Chemical Society 20.03.2003
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Summary:Resonant IR excitation of gas-phase molecules and clusters can lead to superhot species that thermally emit an electron. Monitoring the mass selected ion yield as a function of IR laser frequency yields the IR-REMPI (infrared resonance enhanced multiphoton ionization) spectrum of the molecule or cluster. Although this IR-REMPI spectrum is not the same as the linear absorption spectrum, it can be quite similar and it yields valuable information on the IR optical properties of the species investigated. In this article, the method and the necessary tools are presented. Results from experiments on fullerenes, metal carbide, metal oxide, and metal nitride clusters are shown.
Bibliography:istex:5D16E0C6D793AB27B881780F7FF19866A0E1343F
ark:/67375/TPS-RQRWX5DX-W
ISSN:1089-5639
1520-5215
DOI:10.1021/jp021982s