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

• Verfasst von: Kryzhevoi, Nikolai V. [VerfasserIn]
• Verfasst von: Tarantelli, Francesco [VerfasserIn]
• Verfasst von: Cederbaum, Lorenz S. [VerfasserIn]
• Titel: Tracing electron solvation in Li−(NH3)n clusters with K-shell photodetachment spectroscopy
• Verf.angabe: Nikolai V. Kryzhevoi, Francesco Tarantelli, Lorenz S. Cederbaum
• E-Jahr: 2015
• Jahr: 23 March 2015
• Umfang: 5 S.
• Fussnoten: Im Titel erscheint bei der chemischen Formel das "-" hochgestellt und die 3 sowie das "n" tiefgestellt ; Gesehen am 02.06.2020
• Titel Quelle: Enthalten in: Chemical physics letters
• Ort Quelle: Amsterdam [u.a.] : Elsevier, 1967
• Jahr Quelle: 2015
• Band/Heft Quelle: 626(2015), Seite 85-89
• DOI: doi:10.1016/j.cplett.2015.03.022
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1699156506

Abstract

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.