Details

Autor(en) / Beteiligte

• Kluft, Els
• Nibbering, Nico M.M.
• Schwarz, Helmut
• Mu¨ller, Roland
• Zeller, Klaus-Peter

Titel

A time-resolved study of the methyl elimination from ionized homoadamantane in combination with 2H- and 13C-labelling

Ist Teil von

• International journal of mass spectrometry and ion processes, 1986, Vol.73 (1), p.167-174

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

1986

Quelle

Elsevier Journal Backfiles on ScienceDirect (DFG Nationallizenzen)

Beschreibungen/Notizen

• It is shown by field ionization kinetics and specific 2H- and 13C-labelling that the molecular ions of homoadamantane eliminate a methyl radical via at least three different channels. In two of these channels, the methyl group lost contains one of the methylene groups of positions 4 and 5 and of the bridgehead hydrogen atoms of positions 3 and 6, while in the other channel, the methyl group originates from other positions. It is further demonstrated that, contrary to a previous report, the molecular ions of 1-methyl-adamantane do not rearrange to those of homoadamantane over the whole range of ion lifetimes studied, i.e. from 10 −11 to 10 −5 s, prior to the exclusive loss of the original methyl group.