The infrared spectrum of the benzene–Ar cation

Satink, Rob G.; Piest, Hans; von Helden, Gert; Meijer, Gerard

doi:10.1063/1.480438

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The infrared spectrum of the benzene–Ar cation

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Satink, R. G., Piest, H., von Helden, G., & Meijer, G. (1999). The infrared spectrum of the benzene–Ar cation. The Journal of Chemical Physics, 111(24): 10750. doi:10.1063/1.480438.

Cite as: https://hdl.handle.net/21.11116/0000-000B-65D8-0

Abstract

The infrared (IR) absorption spectra of the jet-cooled C₆H₆ and C₆D₆ cations, complexed with Ar, are measured throughout the 450–1500 cm⁻¹ region via IR-laser-induced vibrational dissociation spectroscopy. The IR spectrum of the C₆H₆–Ar cation is dominated by a Fermi resonance between the IR active v₁₁ mode and two components of the combination mode of the lowest frequency modes v₆ and v₁₆ . A stringent upper limit of 316 cm⁻¹ is found for the value of the dissociation limit D₀ of the neutral C₆D₆–Ar complex.