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• W2169889887 endingPage "638" @default.
• W2169889887 startingPage "628" @default.
• W2169889887 abstract "The determination of gas-phase reactivity of a series of polycyclic aromatic hydrocarbons (PAHs) with nucleophiles is directed at achieving isomer differentiation through ion-molecule reactions and collisionally activated decomposition spectra. A series of PAH isomers form gas-phase [adduci — H]+ ions with the reagent nucleophiles pyridine and N-methylimidazole. Collisionally activated decomposition spectra of the [adduct — H]+ ions of the pyridine/PAH systems are dominated by products formed by losses of C5H4N, C5H5N (presumably neutral pyridine), and C5H6N. Collisional activation of PAH/N-methylimidazole [adduct — H]+ ions causes analogous losses of C4H5N2, C4H6N2 (presumably neutral N-methylimidazole), and C4H7N2. The relative abundances of the ions that result from these losses are highly isomer specific for N-methylimidazole but less so for pyridine. Furthermore, PAH/N-methylimidazole [adduct — H]+ ions undergo a series of metastableion decompositions that also provide highly isomer-specific information. The C4H7N2 (from PAH/N-methylimidazole product ions) and C5H6N (from PAH/pyridine product ions) losses tend to increase with the ΔHf of the PAH radical cation. In addition, it is shown that the fragmentation patterns of these gas-phase PAH/nucleophile adducts are similar to fragmentation patterns of PAH/nucleoside adducts generated in solution, which suggests that the structures of products formed in gas-phase reactions are similar to those produced in solution." @default.
• W2169889887 created "2016-06-24" @default.
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• W2169889887 creator A5031479644 @default.
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• W2169889887 date "1996-07-01" @default.
• W2169889887 modified "2023-09-24" @default.
• W2169889887 title "Reactions of polycyclic aromatic hydrocarbon radical cations with model biological nucleophiles" @default.
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• W2169889887 doi "https://doi.org/10.1016/1044-0305(96)00012-8" @default.
• W2169889887 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24203478" @default.
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