The structure of the [C 2 H 5 O] +  ion in the mass spectrum of diethyl ether | Zendy

Phillips G. R. | Zendy; Russell M. E. | Zendy; Solka B. H. | Zendy

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The structure of the [C 2 H 5 O] + ion in the mass spectrum of diethyl ether

Author(s) -

Phillips G. R.,

Russell M. E.,

Solka B. H.

Publication year - 1975

Publication title -

organic mass spectrometry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.475

H-Index - 121

eISSN - 1096-9888

pISSN - 0030-493X

DOI - 10.1002/oms.1210101002

Subject(s) - protonation , chemistry , ion , acetaldehyde , deuterium , ether , mass spectrum , diethyl ether , polyatomic ion , photochemistry , crystallography , medicinal chemistry , ethanol , organic chemistry , physics , atomic physics

The structure of the [C 2 H 5 O] + ion in the spectrum of diethyl ether was examined by use of deuterated ether, CH 3 CD 2 OCH 2 CH 3 . The results show that, at all electron energies from threshold to 70 eV, the predominant ion is a rearrangement ion, probably protonated acetaldehyde, with very little of the [C 2 H 5 O] + being formed by direct carbon‐oxygen bond cleavage. Appearance potential measurements made on the m / e 45, m / e 46 and m / e 47 ions in the deuterated ether show that the threshold structure of the rearrangement ion is protonated acetaldehyde.

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