title: Cationic and anionic fragmentation of dichloromethane following inner-shell (Cl 1s) photoexcitation.
abstract: The cationic and anionic fragmentation of dichloromethane (CH2Cl2) molecule have been investigated in the energy range of the Cl K shell by using synchrotron radiation, ion yield spectroscopy, and electron-ion coincidence spectroscopy. Total and partial ion-yield and mass spectra have been recorded as a function of the photon energy. We were able to identify several singly and multiply charged cationic fragments and the following anionic species: H-; C-; Cl-. The present results provide the first experimental report of negative ion formation from a molecule excited at the Cl 1s edge. In addition, our electron-ion coincidence data provide strong evidence of the preservation of molecular alignment for the photodissociation of CH2Cl2 after deep core-electron resonant excitation.
authors.affiliation: Department of Chemistry, University of North Carolina, Chapel Hill, NC 27599-3290, USA. alago@lnls.br
authors.forename: A F
authors.initials: AF
authors.lastname: Lago
authors.forename: J Z
authors.initials: JZ
authors.lastname: Dávalos
authors.forename: U
authors.initials: U
authors.lastname: Kerdpin
authors.forename: A S
authors.initials: AS
authors.lastname: Schlachter