Infrared multiphoton absorption and decomposition of ethanol vapour

Multiphoton absorption (MPA) by ethanol has been studied using pulsed HF and CO 2 lasers. For the same laser fluence, a CO 2 laser excites the ethanol molecule to a much higher energy than an HF laser. The multiphoton decomposition (MPD) of methanol has been studied using the 9P(16) CO 2 laser line...

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Bibliographic Details
Published in:Canadian journal of chemistry 1988-04, Vol.66 (4), p.857-865
Main Authors: Back, R. A, Evans, D. K, McAlpine, Robert D, Verpoorte, E. M, Ivanco, Mike, Goodale, J. W, Adams, H. M
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
General and physical chemistry
Photochemistry
Physical chemistry of induced reactions (with radiations, particles and ultrasonics)
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Summary:Multiphoton absorption (MPA) by ethanol has been studied using pulsed HF and CO 2 lasers. For the same laser fluence, a CO 2 laser excites the ethanol molecule to a much higher energy than an HF laser. The multiphoton decomposition (MPD) of methanol has been studied using the 9P(16) CO 2 laser line for pulse widths of 10 and 60 ns. The major decomposition channel produces C 2 H 4 and H 2 O. However, other decomposition channels, resulting in the products CH 3 CHO, C 2 H 6 , CH 4 , and C 2 H 2 , are also studied and the channel ratios are found to vary with laser pulse width and with pressure. The mechanistic implications of these results are discussed.
ISSN:0008-4042
1480-3291
DOI:10.1139/v88-148