移動度分析法によって分離された気相クラスター異性体イオンの分光と反応
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概要
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We have developed an experimental apparatus combining an ion mobility spectrometer and a tandem reflectron time-of-flight mass spectrometer for size- and isomer-selected cluster ion beam formation. By using this apparatus, we have succeeded in observing photoinduced dissociation and collision-induced dissociation reactions of selected ions of carbon and silicon clusters, Cn+ and Sin+. We have discussed the parent-isomer dependence of the observed fragment-ion distributions. Future studies are also mentioned in the last section, including the application of isomer-resolved photoelectron spectroscopy of cluster negative ions.