Photodissociation spectroscopy and dynamics of free radicals, clusters, and ions

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The photodissociation spectroscopy and dynamics of free radicals and ions is studied to characterize the dissociative electronic states in these species. To accomplish this, a special method of radical production, based on the photodetachment of the corresponding negative ion, has been combined with the technique of fast beam photofragment translational spectroscopy. The photofragment yield as a function of photon energy is obtained, mapping out the dissociative and predissociative electronic states. Branching ratios to various product channels, the translational energy distributions of the fragments, and bond dissociation energies are then determined at selected photon energies. The detailed picture of photodissociation dynamics ... continued below

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Hyeon, Choi December 16, 1999.

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The photodissociation spectroscopy and dynamics of free radicals and ions is studied to characterize the dissociative electronic states in these species. To accomplish this, a special method of radical production, based on the photodetachment of the corresponding negative ion, has been combined with the technique of fast beam photofragment translational spectroscopy. The photofragment yield as a function of photon energy is obtained, mapping out the dissociative and predissociative electronic states. Branching ratios to various product channels, the translational energy distributions of the fragments, and bond dissociation energies are then determined at selected photon energies. The detailed picture of photodissociation dynamics is provided with the aid of ab initio calculations and a statistical model to interpret the observed data. Important reaction intermediates in combustion reactions have been studied: CCO, C{sub 2}H{sub 5}O, and linear C{sub n} (n = 4--6).

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OSTI as DE00753102

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  • Other Information: TH: Thesis (Ph.D.); Submitted to Univ. of California, Berkeley, CA (US)

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  • Report No.: LBNL--44715
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/753102 | External Link
  • Office of Scientific & Technical Information Report Number: 753102
  • Archival Resource Key: ark:/67531/metadc708741

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • December 16, 1999

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 6, 2016, 1:09 p.m.

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Hyeon, Choi. Photodissociation spectroscopy and dynamics of free radicals, clusters, and ions, thesis or dissertation, December 16, 1999; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc708741/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.