Reactivity of the Ethenium Cation (C₂H₅⁺) with Ethyne (C₂H₂): A Combined Experimental and Theoretical Study.

ABSTRACT: The gas-phase reaction between the ethyl cation (C₂H₅⁺) and ethyne (C₂H₂) is re-investigated by measuring absolute reactive cross sections (CSs) and branching ratios (BRs) as a function of collision energy, in the thermal and hyperthermal energy range, via tandem-guided ion beam mass spectrometry under single collision conditions. Dissociative photoionization of C₂H₅Br using tuneable VUV radiation in the range 10.5-14.0 eV is employed to generate C₂H₅⁺, which has also allowed us to explore the impact of increasing (vibrational) excitation on the reactivity. Reactivity experiments are complemented by theoretical calculations, at the G4 level of theory, of the relative energies and s

SUBMITTER: Richardson V 

PROVIDER: S-EPMC10892252 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature