title: Dissociation pathways in the cysteine dication after site-selective core ionization.
abstract: A photoelectron-ion-ion coincidence experiment has been carried out on the amino acid molecule cysteine after core-ionization of the O 1s, N 1s, C 1s, and S 2p orbitals. A number of different dissociation channels have been identified. Some of them show strong site-selective dependence that can be attributed to a combination of nuclear motion in the core-ionized state and Auger processes that populate different final electronic states in the dication.
authors.affiliation: Department of Physics, University of Oulu , P.O. Box 3000, FIN-90014 Oulu, Finland.
authors.forename: J
authors.initials: J
authors.lastname: Laksman
authors.forename: K
authors.initials: K
authors.lastname: Kooser
authors.forename: H
authors.initials: H
authors.lastname: Levola
authors.forename: E
authors.initials: E
authors.lastname: Itälä
authors.forename: D T
authors.initials: DT
authors.lastname: Ha
authors.forename: E
authors.initials: E
authors.lastname: Rachlew
authors.forename: E
authors.initials: E
authors.lastname: Kukk
mesh_terms: D002264:Carboxylic Acids / Q000737:chemistry; D002412:Cations / Q000737:chemistry; D003545:Cysteine / Q000737:chemistry*; D004583:Electrons; D008958:Models, Molecular; D056951:Photoelectron Spectroscopy
chemical_list: D002264:Carboxylic Acids; D002412:Cations; D003545:Cysteine