Ion-molecule reactions involving methyl isocyanide and methyl cyanide.
Ion-molecule reactions involving methyl isocyanide and methyl cyanide have been performed in a new rf-only hexapole collision cell inserted in a large-scale tandem mass spectrometer. Beside protonation processes, N-methyl cyanogen ions (CH(3)N(+)CCN) and 1-methyleneiminium-1- ethylenium ions (CH(2)CN(+)CH(2)) have been produced in high yield and fully characterized by high-energy collisional activation. The unimolecular chemistry of the molecular ions of caffeine (1,3,7-trimethyl xanthine) has been revisited on the basis of these new results.
Dechamps
Noémie
N
University of Mons-Hainaut, Avenue Maistriau 19, B-7000 Mons, Belgium.
Flammang
Robert
R
Boulvin
Michaël
M
Lamote
Luc
L
Gerbaux
Pascal
P
Ngan
Vu Thi
VT
Nguyen
Minh Tho
MT