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Free radicals formed by ion beam neutralization of [DCO] + , [DOCO] + , [CD 3 OD 2 ] + and [(CD 3 ) 2 COD] + on metal targets
Author(s) -
Raksit Asit B.,
Porter Richard F.
Publication year - 1987
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.1210220706
Subject(s) - radical , chemistry , excited state , ion , atomic physics , fragmentation (computing) , stripping (fiber) , charge exchange , metastability , analytical chemistry (journal) , deuterium , materials science , physics , organic chemistry , chromatography , computer science , composite material , operating system
Abstract A series of radicals formed when a fast beam of deuterated ions, [DCO] + , [DOCO] + , [CD 3 OD 2 ] + and [(CD) 2 COD] + , is neutralized by electron transfer from K. Na and Zn atoms has been studied by a combination of charge stripping and beam scattering techniques For all systems studied, some fraction of The radicals from charge exchange are formed in excited dissociative states. Radical decomposition products have been identified and fragmentation energies have been measured. A metastable slate of CD3GD2 is observed with a lifetime greater than 0.5 μs. Stable radicals of DCO and (CD 3 ) 2 COD are formed by ion–Zn charge exchange. Indirect evidence indicates that [DCO] + –K charge exchang; leads to an excited radiative state of the radical.