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Fragmentation of Organic Ions and Interpretation of EI Mass Spectra
- Cleavage of a sigma-bond
- Writing conventions for molecular ions
- Alpha-cleavage
- Stevenson’s rule
- Double alpha-cleavage
- Distonic ions
- Benzylic bond cleavage
- Rings plus double bonds
- Allylic bond cleavage
- Cleavage of non-activated bonds
- Recognition of the molecular ion peak
- McLafferty rearrangemen
- McLafferty rearrangement with double hydrogen transfer
- Retro-Diels-Alder reaction
- Elimination of carbon monoxide
- Thermal degradation versus ion fragmentation
- Alkene loss from onium ions
- Ion-neutral complexes
- Ortho elimination (ortho effect)
- Heterocyclic compounds
- Guidelines for the interpretation of mass spectra