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Original Articles

Reactions of C3H3 Ions with Aromatic Hydrocarbons and Alcohols and their Implications for an Ionic Model of Soot Formation

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Pages 233-243 | Received 31 Aug 1984, Published online: 25 Apr 2007
 

Abstract

Ion/molecule reaction pathways and reaction rate coefficients for both cyclic (cyclo-propenylium) and linear (propargylium) C3H3 isomers reacting with aromatic hydrocarbons (benzene, toluene, indene, naphthalene, 1 - and 2-methyl naphthalenes) and alcohols (methanol, ethanol, n-butanol) at low pressures and near room temperature have been determined using ion cyclotron resonance (icr) mass spectrometric techniques. Rate coefficients near the Langevin limit were found for reactions of the propargylium isomer with most of the aromatic hydrocarbons, with charge and hydride transfer reactions predominating. Somewhat lou,er rate coefficients were determined for reactions of the propargylium isomer with the three alcohols, with proton, hydride, and OH-transfer representing the major reaction channels. Implications of these results for an ionic soot formation mechanism are discussed.

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