Gas phase reactions of the ion C5H5Fe(+): A kinetic study.

The kinetics of gas phase reactions of the ion C5H5Fe(+) with oxygen (Me2CO, Me2O, MeOH, iso-propanol, H2O) and nitrogen (NH3, NH2Me, NHMe2, NMe3) donor ligands have been studied by ion trap mass spectrometry. While in the literature reactions of the ion Fe(+), with the same ligands, the principal reaction path involves fragmentation in almost all the reactions of the ion C5H5Fe(+), formation of adduct ions is the major reaction path. The reactivity of these two ions is briefly compared in the ion trap conditions. Kinetic data for the ion C5H5Fe(+) indicate that the reactions show a large range of efficiency and a linear correlation is found between the log of the reaction rate constants and the ionization energy of ligands with the same donor atom.