The absorption of pulsed infrared radiation by cyclobutanone and its subsequent decomposition

R. G. Harrison; H. L. Hawkins; R. M. Leo; P. John

The absorption of pulsed infrared radiation by cyclobutanone and its subsequent decomposition

R. G. Harrison, H. L. Hawkins, R. M. Leo, P. John

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The absorption characteristics of cyclobutanone vapour irradiated with a pulsed CO₂ TEA laser at fluences of 0.5-1.5 J cm^-2have been studied over the pressure range 0.3 to 20 Torr using both joulemeter and opto-acoustic measurements of the absorbed energy. Under these conditions the product concentration for the two subsequent decomposition channels into ethene + ketene and cyclopropane + CO were determined. Above ˜ 3 Torr the results are consistent with a thermally equilibrated system whereas at lower pressures a distinct enhancement of the lower energy pathway to ethene occurs, indicative of a non-Boltzmann energy distribution. © 1980.

Original language	English
Pages (from-to)	555-559
Number of pages	5
Journal	Chemical Physics Letters
Volume	70
Issue number	3
Publication status	Published - 15 Mar 1980

Cite this

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title = "The absorption of pulsed infrared radiation by cyclobutanone and its subsequent decomposition",

abstract = "The absorption characteristics of cyclobutanone vapour irradiated with a pulsed CO2 TEA laser at fluences of 0.5-1.5 J cm-2have been studied over the pressure range 0.3 to 20 Torr using both joulemeter and opto-acoustic measurements of the absorbed energy. Under these conditions the product concentration for the two subsequent decomposition channels into ethene + ketene and cyclopropane + CO were determined. Above ˜ 3 Torr the results are consistent with a thermally equilibrated system whereas at lower pressures a distinct enhancement of the lower energy pathway to ethene occurs, indicative of a non-Boltzmann energy distribution. {\textcopyright} 1980.",

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T1 - The absorption of pulsed infrared radiation by cyclobutanone and its subsequent decomposition

AU - Harrison, R. G.

AU - Hawkins, H. L.

AU - Leo, R. M.

AU - John, P.

PY - 1980/3/15

Y1 - 1980/3/15

N2 - The absorption characteristics of cyclobutanone vapour irradiated with a pulsed CO2 TEA laser at fluences of 0.5-1.5 J cm-2have been studied over the pressure range 0.3 to 20 Torr using both joulemeter and opto-acoustic measurements of the absorbed energy. Under these conditions the product concentration for the two subsequent decomposition channels into ethene + ketene and cyclopropane + CO were determined. Above ˜ 3 Torr the results are consistent with a thermally equilibrated system whereas at lower pressures a distinct enhancement of the lower energy pathway to ethene occurs, indicative of a non-Boltzmann energy distribution. © 1980.

AB - The absorption characteristics of cyclobutanone vapour irradiated with a pulsed CO2 TEA laser at fluences of 0.5-1.5 J cm-2have been studied over the pressure range 0.3 to 20 Torr using both joulemeter and opto-acoustic measurements of the absorbed energy. Under these conditions the product concentration for the two subsequent decomposition channels into ethene + ketene and cyclopropane + CO were determined. Above ˜ 3 Torr the results are consistent with a thermally equilibrated system whereas at lower pressures a distinct enhancement of the lower energy pathway to ethene occurs, indicative of a non-Boltzmann energy distribution. © 1980.

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M3 - Article

SN - 0009-2614

VL - 70

SP - 555

EP - 559

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 3

ER -

The absorption of pulsed infrared radiation by cyclobutanone and its subsequent decomposition

Abstract

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