Tracing electron solvation in Li−(NH3)n clusters with K-shell photodetachment spectroscopy

We demonstrate that K-shell photoelectron spectroscopy is sensitive to binding motifs of cationic cores with excess electrons in solvated metals. Hereby, the satellites in core-level spectra and not the main line provide the important insight into ion-pairing effects. We found that contact ion-pairs...

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Hauptverfasser: Kryzhevoi, Nikolai V. (VerfasserIn) , Tarantelli, Francesco (VerfasserIn) , Cederbaum, Lorenz S. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 23 March 2015
In: Chemical physics letters
Year: 2015, Jahrgang: 626, Pages: 85-89
DOI:10.1016/j.cplett.2015.03.022
Online-Zugang:Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.cplett.2015.03.022
Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S000926141500175X
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Verfasserangaben:Nikolai V. Kryzhevoi, Francesco Tarantelli, Lorenz S. Cederbaum
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Zusammenfassung:We demonstrate that K-shell photoelectron spectroscopy is sensitive to binding motifs of cationic cores with excess electrons in solvated metals. Hereby, the satellites in core-level spectra and not the main line provide the important insight into ion-pairing effects. We found that contact ion-pairs in Li−(NH3)1-3 and a solvent-separated ion-pair in Li−(NH3)4 result in remarkably different Li1s spectra. The former spectra have numerous intense satellites of a charge-transfer character while that of Li−(NH3)4 contains only one strong satellite describing excitation of a solvated electron. We also explored K-shell photodetachment of the bare Li− and found that three-electron processes are essential here.
Beschreibung:Im Titel erscheint bei der chemischen Formel das "-" hochgestellt und die 3 sowie das "n" tiefgestellt
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Beschreibung:Online Resource
DOI:10.1016/j.cplett.2015.03.022