scholarly journals Direct Measurement of the Radiative Lifetime of Vibrationally Excited OH Radicals

2005 ◽  
Vol 95 (1) ◽  
Author(s):  
Sebastiaan van de Meerakker ◽  
Nicolas Vanhaecke ◽  
Mark van der Loo ◽  
Gerrit Groenenboom ◽  
Gerard Meijer
Keyword(s):  
Direct Measurement ◽  
Radiative Lifetime ◽  
Oh Radicals ◽  
Vibrationally Excited

Ultracold collisions and reactions of vibrationally excited OH radicals with oxygen atoms

2011 ◽  
Vol 13 (42) ◽  
pp. 19067 ◽  
Author(s):  
Juan Carlos Juanes-Marcos ◽  
Goulven Quéméner ◽  
Brian K. Kendrick ◽  
Naduvalath Balakrishnan
Keyword(s):  
Oh Radicals ◽  
Vibrationally Excited ◽  
Ultracold Collisions ◽  
Oxygen Atoms

AN IMPROVED TECHNIQUE FOR THE OBSERVATION OF INFRARED CHEMILUMINESCENCE: RESOLVED INFRARED EMISSION OF OH ARISING FROM THE SYSTEM H + O2

1960 ◽  
Vol 38 (10) ◽  
pp. 1742-1755 ◽  
Author(s):  
P. E. Charters ◽  
J. C. Polanyi
Keyword(s):  
Infrared Spectrum ◽  
Electronic State ◽  
Vibrational Temperature ◽  
Infrared Emission ◽  
Multiple Reflection ◽  
Ground Electronic State ◽  
Oh Radicals ◽  
Vibrationally Excited ◽  
Improved Technique ◽  
First Time

A multiple reflection apparatus for the observation of infrared chemiluminescence is described. By means of this apparatus infrared emission from the system H + O2 has been identified as being due to vibrationally excited OH radicals in levels v = 1, 2, and 3 of the ground electronic state. The resolved infrared spectrum of the OH fundamental has been observed for the first time without interference from other emission. The most likely source of excited OH is the reaction H + HO2 → OH† + OH. The vibrational 'temperature' of OH† (vibrationally excited OH in its ground electronic state) in our system is in the region of TV = 2240 °K. These findings are discussed in relation to Krassovsky's suggestion that reaction between H and O2 could account for the Meinel hydroxyl bands in the night sky.

Direct Measurement of OH Radicals from Ozonolysis of Selected Alkenes:  A EUPHORE Simulation Chamber Study

2001 ◽  
Vol 35 (23) ◽  
pp. 4660-4667 ◽  
Author(s):  
Manfred Siese ◽  
Karl H. Becker ◽  
Klaus J. Brockmann ◽  
Harald Geiger ◽  
Andreas Hofzumahaus ◽  
...  
Keyword(s):  
Direct Measurement ◽  
Oh Radicals ◽  
Chamber Study ◽  
Simulation Chamber

Radiative lifetime of vibrationally excited N2H+ and N2D+ molecular ions

2003 ◽  
Vol 223-224 ◽  
pp. 669-678 ◽  
Author(s):  
M Heninger ◽  
D Lauvergnat ◽  
J Lemaire ◽  
P Boissel ◽  
G Mauclaire ◽  
...  
Keyword(s):  
Radiative Lifetime ◽  
Molecular Ions ◽  
Vibrationally Excited

Electron Resonance of Vibrationally Excited OH Radicals

1971 ◽  
Vol 49 (17) ◽  
pp. 2207-2210 ◽  
Author(s):  
K. P. Lee ◽  
W. G. Tam ◽  
R. Larouche ◽  
G. A. Woonton
Keyword(s):  
Hyperfine Interaction ◽  
Hydroxyl Radicals ◽  
Recent Experiment ◽  
Oh Radicals ◽  
Vibrationally Excited ◽  
Electron Resonance ◽  
Vibrational Levels ◽  
G Factors

Hydroxyl radicals in the vibrational levels ν = 1, 2, 3, and 4 of 2Π3/2, J = 3/2 state were observed by means of electron resonance at a frequency of 8.9 GHz. The lambda doubling frequencies, the g factors, and the hyperfine interaction constants are obtained and they are in agreement with the results of another recent experiment.

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