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- W3214609664 abstract "A key step in gas-phase polycyclic aromatic hydrocarbon (PAH) formation involves the addition of acetylene (or other alkyne) to σ-type aromatic radicals, with successive additions yielding more complex PAHs. A similar process can happen for N- containing aromatics. In cold diffuse environments, such as the interstellar medium, rates of radical addition may be enhanced when the σ-type radical is charged. This paper investigates the gas-phase ion-molecule reactions of acetylene with nine aromatic distonic σ-type radical cations derived from pyridinium (Pyr), anilinium (Anl) and benzonitrilium (Bzn) ions. Three isomers are studied in each case (radical sites at the ortho, meta and para positions). Using a room temperature ion trap, second-order rate coefficients, product branching ratios and reaction efficiencies are reported." @default.
- W3214609664 created "2021-11-22" @default.
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- W3214609664 date "2020-10-13" @default.
- W3214609664 modified "2023-09-26" @default.
- W3214609664 title "Reactivity Trends in the Gas Phase Addition of Acetylene to N-protonated Aryl Radical Cations" @default.
- W3214609664 doi "https://doi.org/10.26434/chemrxiv.13078334.v1" @default.
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