Organometallic studies. Part XXV. Mass spectra of some mono-substituted cymantrenes

Abstract

The spectra of eighteen cymantrene derivatives are reported and discussed. Fragmentation patterns are suggested and substantiated by the use of metastable peaks wherever such have been observed. The presence of the metal atom in many of the fragment ions observed appears to play an important role in determining stability and subsequent fragmentation paths of these ions. This is illustrated by the observation of several intramolecular rearrangements, involving the metal atom.