Charge Dependence of Solvent-Mediated Intermolecular Coster-Kronig Decay Dynamics of Aqueous Ions
2010 (English)In: Journal of Physical Chemistry B, ISSN 1520-6106, E-ISSN 1520-5207, Vol. 114, no 51, 17057-17061 p.Article in journal (Refereed) Published
The 2s and 2p photoelectron spectra have been measured for Na+, Mg2+, and Al3+ ions in aqueous solution.In all cases, the 2s lines are significantly broader than the 2p features, which is attributed to a shorter lifetimeof the respective 2s hole. Since intraionic Coster-Kronig decay channels from the (2s)-1 state are closed forfree Na+, Mg2+, and Al3+ ions, this is evidence for an intermolecular Coster-Kronig-like process, reminiscentof intermolecular Coulombic decay (ICD), involving neighboring water solvent molecules. The observed 2s Lorentzian line widths correspond to lifetimes of the (2s)-1 state of 3.1, 1.5, and 0.98 fs for the solvated Na,Mg, and Al ions, respectively.
Place, publisher, year, edition, pages
2010. Vol. 114, no 51, 17057-17061 p.
Research subject Physics with spec. in Atomic, Molecular and Condensed Matter Physics
IdentifiersURN: urn:nbn:se:uu:diva-138741DOI: 10.1021/jp108956vISI: 000285560100006OAI: oai:DiVA.org:uu-138741DiVA: diva2:379723