Infrared spectra of carbocations and CH4+ in helium

• Published in: Physical chemistry chemical physics : PCCP Vol. 23; no. 48; pp. 27449 - 27459
• Main Authors: Davies, Julia A, Yang, Shengfu, Ellis, Andrew M
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 15.12.2021
• Subjects: Banded structure; Cations; Helium; Helium atoms; Hydrocarbons; Infrared spectra; Ions; Jahn-Teller effect; Methane; Molecular ions; Photoexcitation; Spectrometry; Vapor phases

Infrared (IR) spectra of several hydrocarbon cations are reported, namely CH3+, CH4+, CH5+, CH5+(CH4) and C2H5+. The spectra were generated from weakly-bound helium-cation complexes formed by electron ionization of helium nanodroplets doped with a neutral hydrocarbon precursor. Spectroscopic transit...