The first rotationally resolved spectrum of CH4+

R. Signorell; F. Merkt

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The Journal of Chemical Physics

Article . 1999 . Peer-reviewed

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https://dx.doi.org/10.1063/1.4...

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The first rotationally resolved spectrum of CH4+

descriptionPublicationkeyboard_double_arrow_right Article 01 Feb 1999 English Publisher:AIP PublishingJournal:The Journal of Chemical Physics, volume 110, pages 2,309-2,311 (issn: 0021-9606, eissn: 1089-7690,

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Authors: R. Signorell; F. Merkt;

doi: 10.1063/1.477965

The first rotationally resolved spectrum of CH4+

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Abstract

The pulsed-field-ionization (PFI) zero-kinetic-energy (ZEKE) photoelectron spectra of CH4 and CD4 have been recorded in the region 100880–104100 cm−1. From the analysis of the photoelectron spectra the first adiabatic ionization potential of CH4 and CD4 has been determined to be (101773±35) cm−1 and (102210±25) cm−1, respectively. A one-dimensional model for the pseudorotation between three equivalent C2v equilibrium structures shows evidence for a fluxional behavior of CH4+.

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ETH Zurich
Switzerland
Laboratory of Physical Chemistry
Switzerland

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