1.
Phys Chem Chem Phys
; 17(43): 28505-9, 2015 Nov 21.
Artigo
em Inglês
| MEDLINE
| ID: mdl-26267655
RESUMO
Energetic acetone cations decay by methane or methyl radical loss. Although the methane-loss barrier to form the ketene cation is higher and the activation entropy is lower, it has a significant branching ratio at low energies thanks to quantum tunnelling. H-atom tunnelling can be selectively quenched and the methane-loss channel suppressed quantitatively by deuteration.