Mass Spectrometry of Allyloxy Di- and Trimethylsilanes

Article abstract of DOI:10.1002/oms.1210170506

The mass spectra of allyloxydimethylsilanes and allyloxytrimethylsilanes were examined.Isotopic labelling and metastable peaks support the proposed fragmentation patterns.Siliconium ions dominate the spectra.Loss of neutral fragments form ⁺ and ⁺ ions is important.These fragmentation patterns are discussed in terms of interaction of siliconium ions with the carbon-carbon double bond of the allyloxy ligand.Increased substitution on the allyloxy ligand apparently decreases the interaction of siliconium ions with the carbon-carbon double bond.