AuthorSurber, Sean Eric
Committee ChairSanov, Andrei
MetadataShow full item record
PublisherThe University of Arizona.
RightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
AbstractFemtosecond negative-ion photoelectron imaging spectroscopy allows the probing of dynamics resulting from solvation and photodissociation in both the time-resolved and solvent domains. First, the basic premise of photoelectron imaging shall be presented, followed by a discussion of qualitative approaches for interpreting photoelectron angular distributions as illustrated by application to the photoelectron images of S₂⁻ and CS₂⁻. The photoelectron images of CS₂⁻ serve as a reference for interpreting the results for homogeneous and heterogeneous solvation in CO₂ and OCS cluster anions. The effects of solvation upon the photoelectron angular distribution and the photoelectron energy spectrum are discussed in relation to (OCS)n⁻, OCS⁻·H₂O, (CO2)n⁻, and (CO₂)n(H₂O)m⁻. The (OCS)₂⁻ cluster anion images show evidence of competition of excited state decay pathways and coexistence of isomers. The evolution of photoelectron images, resulting from I₂Br⁻ dissociation shows the evolving electronic structure of the I⁻ channel as the anion dissociates.