Journal of Physical Chemistry p. 155 - 157 (1980)
Update date:2022-08-16
Topics:
Hudson, Charles E.
Lerner, Rob D.
Aleman, Ruben
McAdoo, David J.
Ethers of the type R1CH(CH3)OR2 show a metastable peak for the loss of R1H in their mass spectra.Loss of C2H5D is the principal decomposition of metastable C2H5CH(CD3)O(+.)CH3, demonstrating that vinyl ether ions are formed by the metastable losses of alkanes.Thermochemical and orbital symmetry considerations support the hypothesis that the losses of alkanes occur from an electronically excited state of the ether ions.Other ether ions with the oxygen bonded to a nonterminal carbon also lose alkanes.N,N-Dimethyl-s-butylamine, di-sec-butyl sulfide, sec-butylbenzene, and tert-pentyl ether ions do not lose alkanes.
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