Fragmentation of meso-Tetraphenyl iron(III) porphyrin chloride (FeTPPCl) in collisions with Kr8+ ions
Résumé
Fragmentation of FeTPPCI (C44H28N4FeCl) induced by Kr8+ impact at 80 keV has been investigated. Fragmentation schemes have been studied for different charge states of parent ions (r=1-3). The dominant low-energy-cost fragmentation channel is the emission of neutral chlorine independently to the charge of the molecule. For the monocharged FeTPPCI parent ions, a minor channel corresponding to the emission of a chlorine anion is observed with a measured rate of about 3% ± 1%. For the dication molecule, the evaporation of a neutral phenyl molecule is the dominant channel, whereas for the trication molecule the dominant channel is the asymmetrical fission by emission of a charged phenyl. These processes are discussed in terms of charge distribution of the molecule.