Ion induced dissociation of tetraphenyl iron(III) porphyrin chloride and electron-capture induced dissociation of protoporphyrin IX ions

We performed experiments concerning the fragmentation of different porphyrin molecules. Multi-ionisation and ion-induced fragmentation of FeTPPClq+ (q = 1 to 4) have been studied in slow collisions with multiply charged ions. We have shown also electron-capture induced dissociation of protoporphyrin cations, where two electrons in two successive have been captured in order to convert it to the corresponding even-electron anions. All fragmentation processes are discussed in terms of charge mobility.