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Energy Partitioning in Molecular Photodissociation: Methyl Nitrite Photolysis
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| Zeitschriftentitel: | Laser Chemistry |
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| Personen und Körperschaften: | , , |
| In: | Laser Chemistry, 3, 1983, 1-6, S. 97-106 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Hindawi Limited
|
| Schlagwörter: |
| Zusammenfassung: | <jats:p>The photodissociation of methyl nitrite CH<jats:sub>3</jats:sub>ONO in three different electronically excited states has been studied by determining the internal state distribution of one of the photofragments. The fluorescence of NO A<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mo> </mml:mo><mml:mmultiscripts><mml:mi>Σ</mml:mi><mml:mprescripts /><mml:none /><mml:mn>2</mml:mn></mml:mmultiscripts></mml:math><jats:sup>+</jats:sup> produced for excitation of CH<jats:sub>3</jats:sub>ONO between 1200 and 1650 Å and of CH<jats:sub>3</jats:sub>O <jats:sup>2</jats:sup><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mo> </mml:mo></mml:math>A<jats:sub>1</jats:sub> produced at 1930 Å has been investigated. The vibrational distribution in both species can be explained by statistical considerations. The rotational excitation of NO A<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mo> </mml:mo><mml:mmultiscripts><mml:mi>Σ</mml:mi><mml:mprescripts /><mml:none /><mml:mn>2</mml:mn></mml:mmultiscripts></mml:math><jats:sup>+</jats:sup> is of Boltzmann type. For CH<jats:sub>3</jats:sub>ONO excited in the first nπ* excited state at 3550 Å the NO X fragment has been probed by a two photon laser excited fluorescence technique. The nascent NO X υ″ = 0, 1, 2, 3 exhibit a population inversion and a high degree of rotational excitation.</jats:p> |
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| Umfang: | 97-106 |
| ISSN: |
0278-6273
1476-3516 |
| DOI: | 10.1155/lc.3.97 |