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- Schlemmer, Stephan, et al. Show all 6 Authors
- Science 2005 v.309 no.5738 pp. 1219-1222
- carbon dioxide; freezing; hydrogen; methane; molecular dynamics
- ... Protonated methane, CH₅⁺, continues to elude definitive structural assignment, as large-amplitude vibrations and hydrogen scrambling challenge both theory and experiment. Here, the infrared spectrum of bare CH₅⁺ is presented, as detected by reaction with carbon dioxide gas after resonant excitation by the free electron laser at the FELIX facility in the Netherlands. Comparison of the experimental ...