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Hydrogen scrambling in the long‐lived protonated benzene ion generated from benzyl amine in the i.c.r. spectrometer
Author(s) -
Bruins Andries P.,
Nibbering Nico M. M.
Publication year - 1976
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.1210110906
Subject(s) - protonation , chemistry , ion , amine gas treating , benzene , deuterium , scrambling , base (topology) , medicinal chemistry , photochemistry , organic chemistry , atomic physics , physics , mathematical analysis , linguistics , philosophy , mathematics
It is shown by reactions with various bases in an i.c.r. cell that an almost complete H‐D randomization takes place in the gaseous and long‐lived [C 6 H 2 D 5 ] + ion, generated from C 6 D 5 CD 2 NH 2 by electron impact, but not in its precursor ions. This follows from the ratio of [H] + vs [D] + transfer to bases, obtained from double resonance signals. The ratio appears to be reliable only if the protonated (deuterated) base is stable and does not undergo unimolecular decompositions.