title: Electron solvation dynamics in I-(NH3)n clusters
abstract: Femtosecond photoelectron spectroscopy (FPES) is used to monitor the dynamics associated with the excitation of the charge-transfer-to-solvent (CTTS) precursor states in I-(NH3)n = 4-15 clusters. The FPE spectra imply that the weakly bound excess electron in the excited state undergoes partial solvation via solvent rearrangement on a time scale of 0.5-2 ps, and this partially solvated state decays by electron emission on a 10-50 ps time scale. Both the extent of solvation and the lifetimes increase gradually with cluster size, in contrast to the more abrupt size-dependent effects previously observed in I-(H2O)n clusters.
authors.affiliation: Department of Chemistry, University of California, Berkeley 94720, USA.
authors.initials: C
authors.lastname: Frischkorn
authors.initials: MT
authors.lastname: Zanni
authors.initials: AV
authors.lastname: Davis
authors.initials: DM
authors.lastname: Neumark