Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Two Photon Dissociation of Benzene, Phenylacetylene, and Benzaldehyde at 243 nm: Translational Energy Releases in the H Atom Channel

  • Shin, Seung-Keun (Department of Chemistry, Kangwon National University) ;
  • Kim, Hong-Lae (Department of Chemistry, Kangwon National University) ;
  • Park, Chan-Ryang (Department of Chemistry, College of Natural Sciences, Kookmin University)
  • Published : 2002.02.20
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Abstract

Hydrogen atom production channels from photodissociation of benzene, phenylacetylene, and benzaldehyde at 243 nm have been investigated by detecting H atoms using two photon absorption at 243.2 nm and induced fluorescence at 121.6 nm. Translational energies of the H atoms were measured by Doppler broadened H atom spectra. By absorption of two photons at 243 nm, the H atoms are statistically produced from benzene and phenylacetylene whereas the H atoms from the aldehyde group in benzaldehyde are produced from different pathways. The possible dissociation mechanisms are discussed from the measured translational energy releases.

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