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- W4245427810 abstract "Hypervalent organic ammonium radicals were generated by collisional neutralization with dimethyl disulfide of protonated 1,4-diazabicyclo[2.2.2]octane (1H+), N,N′-dimethylpiperazine (2H+) and N-methylpiperazine (3H+). The radicals dissociated completely on the 5.1 μs time-scale. Radical 1H• underwent competitive N−H and N−C bond dissociations producing 1,4-diazabicyclo[2.2.2]octane and small ring fragments. Dissociations of radical 2H• proceeded by N−H bond dissociation and ring cleavage, whereas N−CH3 bond cleavage was less frequent. Radical 3H• underwent N−H, N−CH3 and N−Cring bond cleavages followed by post-reionization dissociations of the formed cations. The pattern of bond dissociations in the hypervalent ammonium radicals derived from six-membered nitrogen heterocycles is similar to those of aliphatic ammonium radicals. © 1997 John Wiley & Sons, Ltd." @default.
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- W4245427810 date "1997-11-01" @default.
- W4245427810 modified "2023-10-18" @default.
- W4245427810 title "Bond dissociations in hypervalent ammonium radicals prepared by collisional neutralization of protonated six‐membered nitrogen heterocycles" @default.
- W4245427810 doi "https://doi.org/10.1002/(sici)1096-9888(199711)32:11<1162::aid-jms571>3.3.co;2-x" @default.
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