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Laser‐ion beam photodissociation studies of C 4 H 4 radical cations
Author(s) -
Krailler R. E.,
Russell D. H.
Publication year - 1985
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.1210201004
Subject(s) - photodissociation , ion , fragmentation (computing) , ion beam , atomic physics , chemistry , population , laser , internal energy , photochemistry , analytical chemistry (journal) , optics , physics , demography , organic chemistry , chromatography , quantum mechanics , sociology , computer science , operating system
The laser‐ion beam photodissociation for [C 4 H 4 ] + ˙ ions produced from a variety of precursors has been studied. Based on the data it is apparent that two structurally distinct forms of the [C 4 H 4 ] + ˙ ion are produced by fragmentation of larger systems. The relative population of the various structural forms is very dependent on the internal energy of the fragmenting ion, with 1‐buten‐3‐yne [C 4 H 4 ] + ˙ ions being favored at low internal energies. As the internal energy of the reactant ion is increased, the relative population of butatriene [C 4 H 4 ] + ˙ ions increases. The laser‐ion beam photodissociation technique is able to selectively sample these two structural forms.