Time-resolved tunable diode laser detection of products of the infrared multiphoton dissociation of hexafluoroacetone: A line-strength and band-strength measurement for CF3

J. J. Orlando; D. R. Smith

doi:10.1021/j100329a018

Time-resolved tunable diode laser detection of products of the infrared multiphoton dissociation of hexafluoroacetone: A line-strength and band-strength measurement for CF₃

J. J. Orlando, D. R. Smith

Experimental Science Section

McMaster University

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

12 Scopus citations

Abstract

This paper describes the time-resolved detection of CF₃, C₂F₆, and CO following the infrared multiphoton dissociation of hexafluoroacetone. The primary photolysis mechanism has been established as follows: (CF₃)₂CO → 2CF₃ + CO; 2CF₃ → C₂F₆. Determination of the CO and C₂F₆ formed in a single photolysis pulse leads to a measure of an infrared line strength and v₃ band strength for CF₃. Quantification of the CF₃ in this manner allows a study of its reaction kinetics. The reactions of CF₃ with added O₂ and NO were found to have third-body rate constants of (2.1 ± 0.5) × 10^-29 and (2.8 ± 0.7) × 10^-29 cm⁶ molecule^-2 s^-1, respectively, at room temperature in the presence of 600 mTorr of hexafluoroacetone.

Original language	English
Pages (from-to)	5147-5150
Number of pages	4
Journal	Journal of Physical Chemistry
Volume	92
Issue number	18
DOIs	https://doi.org/10.1021/j100329a018
State	Published - 1988

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@article{56effd5f043a420aaa113f76243de0e9,

title = "Time-resolved tunable diode laser detection of products of the infrared multiphoton dissociation of hexafluoroacetone: A line-strength and band-strength measurement for CF3",

abstract = "This paper describes the time-resolved detection of CF3, C2F6, and CO following the infrared multiphoton dissociation of hexafluoroacetone. The primary photolysis mechanism has been established as follows: (CF3)2CO → 2CF3 + CO; 2CF3 → C2F6. Determination of the CO and C2F6 formed in a single photolysis pulse leads to a measure of an infrared line strength and v3 band strength for CF3. Quantification of the CF3 in this manner allows a study of its reaction kinetics. The reactions of CF3 with added O2 and NO were found to have third-body rate constants of (2.1 ± 0.5) × 10-29 and (2.8 ± 0.7) × 10-29 cm6 molecule-2 s-1, respectively, at room temperature in the presence of 600 mTorr of hexafluoroacetone.",

author = "Orlando, \{J. J.\} and Smith, \{D. R.\}",

year = "1988",

doi = "10.1021/j100329a018",

language = "English",

volume = "92",

pages = "5147--5150",

journal = "Journal of Physical Chemistry",

issn = "0022-3654",

publisher = "American Chemical Society",

number = "18",

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TY - JOUR

T1 - Time-resolved tunable diode laser detection of products of the infrared multiphoton dissociation of hexafluoroacetone

T2 - A line-strength and band-strength measurement for CF3

AU - Orlando, J. J.

AU - Smith, D. R.

PY - 1988

Y1 - 1988

N2 - This paper describes the time-resolved detection of CF3, C2F6, and CO following the infrared multiphoton dissociation of hexafluoroacetone. The primary photolysis mechanism has been established as follows: (CF3)2CO → 2CF3 + CO; 2CF3 → C2F6. Determination of the CO and C2F6 formed in a single photolysis pulse leads to a measure of an infrared line strength and v3 band strength for CF3. Quantification of the CF3 in this manner allows a study of its reaction kinetics. The reactions of CF3 with added O2 and NO were found to have third-body rate constants of (2.1 ± 0.5) × 10-29 and (2.8 ± 0.7) × 10-29 cm6 molecule-2 s-1, respectively, at room temperature in the presence of 600 mTorr of hexafluoroacetone.

AB - This paper describes the time-resolved detection of CF3, C2F6, and CO following the infrared multiphoton dissociation of hexafluoroacetone. The primary photolysis mechanism has been established as follows: (CF3)2CO → 2CF3 + CO; 2CF3 → C2F6. Determination of the CO and C2F6 formed in a single photolysis pulse leads to a measure of an infrared line strength and v3 band strength for CF3. Quantification of the CF3 in this manner allows a study of its reaction kinetics. The reactions of CF3 with added O2 and NO were found to have third-body rate constants of (2.1 ± 0.5) × 10-29 and (2.8 ± 0.7) × 10-29 cm6 molecule-2 s-1, respectively, at room temperature in the presence of 600 mTorr of hexafluoroacetone.

UR - https://www.scopus.com/pages/publications/0006341914

U2 - 10.1021/j100329a018

DO - 10.1021/j100329a018

M3 - Article

AN - SCOPUS:0006341914

SN - 0022-3654

VL - 92

SP - 5147

EP - 5150

JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

IS - 18

ER -

Time-resolved tunable diode laser detection of products of the infrared multiphoton dissociation of hexafluoroacetone: A line-strength and band-strength measurement for CF₃

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