Photodissociation spectroscopy and dynamics of the vinoxy (CH{sub 2}CHO) radical

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The photodissociation spectroscopy and dynamics of the vinoxy (CH{sub 2}CHO) radical have been studied using fast beam photofragment translational spectroscopy. The photodissociation cross section over the B{sup 2}A{double_prime} {l_arrow} X{sup 2}A{double_prime} band is measured, and photofragment translational energy and angular distributions are obtained at several excitation energies. For CH{sub 2}CHO, predissociation is observed over the entire band, including several transitions near the band origin which were seen previously in laser-induced fluorescence experiments. Two dissociation channels are seen: CH{sub 3} + CO and H + CH{sub 2}CO. The CH{sub 3} + CO channel was investigated in considerable detail and appears to ... continued below

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24 p.

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Osborn, D.L.; Choi, H. & Neumark, D.M. November 1, 1995.

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The photodissociation spectroscopy and dynamics of the vinoxy (CH{sub 2}CHO) radical have been studied using fast beam photofragment translational spectroscopy. The photodissociation cross section over the B{sup 2}A{double_prime} {l_arrow} X{sup 2}A{double_prime} band is measured, and photofragment translational energy and angular distributions are obtained at several excitation energies. For CH{sub 2}CHO, predissociation is observed over the entire band, including several transitions near the band origin which were seen previously in laser-induced fluorescence experiments. Two dissociation channels are seen: CH{sub 3} + CO and H + CH{sub 2}CO. The CH{sub 3} + CO channel was investigated in considerable detail and appears to proceed via internal conversion to the CH{sub 2}CHO ground state followed by isomerization to CH{sub 3}CO and subsequent dissociation. The translational energy distributions for this channel suggest an isomerization barrier in the range of 2 eV with respect to CH{sub 3} + CO products.

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24 p.

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OSTI as DE96004742

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  • 20. international Solvay conference in chemistry, Brussels (Belgium), 28 Nov - 2 Dec 1995

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  • Other: DE96004742
  • Report No.: LBL--37961
  • Report No.: CONF-9511139--2
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 195626
  • Archival Resource Key: ark:/67531/metadc666535

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  • November 1, 1995

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  • June 29, 2015, 9:42 p.m.

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  • April 5, 2016, 10:25 a.m.

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Osborn, D.L.; Choi, H. & Neumark, D.M. Photodissociation spectroscopy and dynamics of the vinoxy (CH{sub 2}CHO) radical, article, November 1, 1995; California. (digital.library.unt.edu/ark:/67531/metadc666535/: accessed September 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.