Temperature-dependent quenching of O2(b 1Σ+g) by H2, D2, CO2, HN3, DN3, HNCO and DNCO

Hohmann, Judit; Ga, Müller; Schönnenbeck, G.; Stuhl, F.

doi:10.1016/0009-2614(93)e1424-f

Cited by 14 publications

(18 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The currently recommended value 10 for k 6 of (4.2 ( 1.7) × 10 -13 cm 3 molecule -1 s -1 is based on several studies. 20,25,36,48,49,56,57 The result of Hohmann et al 43 is also in agreement with this recommended value (see Table 5). The range of values used in the current recommendation is (2.4-5.0) × 10 -13 cm 3 molecule -1 s -1 and our value of (3.39 ( 0.36) × 10 -13 cm 3 molecule -1 s -1 falls within this range and agrees with the recommendation given the large uncertainty.…”

Section: Discussionsupporting

confidence: 87%

Kinetic Studies of the Reactions of O₂(bΣ_g⁺) with Several Atmospheric Molecules

2005

View full text Add to dashboard Cite

Thermal rate coefficients for the removal (reaction + quenching) of O2(1sigma(g)+) by collision with several atmospheric molecules were determined to be as follows: O3, k3(210-370 K) = (3.63 +/- 0.86) x 10(-11) exp((-115 +/- 66)/T); H2O, k4(250-370 K) = (4.52 +/- 2.14) x 10(-12) exp((89 +/- 210)/T); N2, k5(210-370 K) = (2.03 +/- 0.30) x 10(-15) exp((37 +/- 40)/T); CO2, k6(298 K) = (3.39 +/- 0.36) x 10(-13); CH4, k7(298 K) = (1.08 +/- 0.11) x 10(-13); CO, k8(298 K) = (3.74 +/- 0.87) x 10(-15); all units in cm3 molecule(-1) s(-1). O2(1sigma(g)+) was produced by directly exciting ground-state O2(3sigma(g)-) with a 762 nm pulsed dye laser. The reaction of O2(1sigma(g)+) with O3 was used to produce O(3P), and temporal profiles of O(3P) were measured using VUV atomic resonance fluorescence in the presence of the reactant to determine the rate coefficients for removal of O2(1sigma(g)+). Our results are compared with previous values, where available, and the overall trend in the O2(1sigma(g)+) removal rate coefficients and the atmospheric implications of these rate coefficients are discussed. Additionally, an upper limit for the branching ratio of O2(1sigma(g)+) + CO to give O(3P) + CO2 was determined to be < or = 0.2% and this reaction channel is shown to be of negligible importance in the atmosphere.

show abstract

Section: Discussionsupporting

confidence: 87%

Kinetic Studies of the Reactions of O₂(bΣ_g⁺) with Several Atmospheric Molecules

2005

View full text Add to dashboard Cite

show abstract

“…8 The isotopic purity of the deuterated compounds was determined mass spectroscopically to be 93% (DNCO) and 94% (DN3). 8 The isotopic purity of the deuterated compounds was determined mass spectroscopically to be 93% (DNCO) and 94% (DN3).…”

Section: Methodsmentioning

confidence: 99%

Formation of O2(b1.SIGMA.g+) in the Reaction of NH/ND(a1.DELTA.,v) with O2

Bohn¹,

Stuhl²

1995

J. Phys. Chem.

Self Cite

View full text Add to dashboard Cite

The formation of metastable 02(b'Zg+) in the energy-transfer reaction of NWND(a'A,v) with 0 2 was investigated for different photolysis systems. Rate constants for the energy transfer from the vibrational levels v = 0, 1, 2 of NWND(a) were estimated by quantitatively comparing the phosphorescence intensities of the NWND(a1A4X3Z-) and 02(b1Zg+-X3Zg-) transitions. The values of the rate constants are in the range (4-20) x cm3 s-'. They increase significantly with the vibrational quanta of NH(a,v), while, for ND(a, v), an increase is barely noticeable. A comparison with previously determined rate constants for the quenching of the same vibrational states by 0 2 reveals that the efficiencies of the energy-transfer processes are close to unity. Recent kinetic measurements of the quenching of Oz(b'Xg+) by "3, DN3, HNCO, and DNCO are confirmed.

show abstract

“…13 Gaseous HN 3 /DN 3 was collected in a N 2 (l)-trap and purified by repeated distillation in vacuo. HN 3 /DN 3 was diluted in Ar to give a 13% mixture and was stored in a 10 l Pyrex bulb.…”

Section: Methodsmentioning

confidence: 99%

Vuv photolysis of hydrazoic acid: Absorption and fluorescence excitation spectra

Schönnenbeck

Biehl

Stuhl

et al. 1998

The Journal of Chemical Physics

Self Cite

View full text Add to dashboard Cite

show abstract

Temperature-dependent quenching of O2(b 1Σ+g) by H2, D2, CO2, HN3, DN3, HNCO and DNCO

Cited by 14 publications

References 25 publications

Kinetic Studies of the Reactions of O₂(bΣ_g⁺) with Several Atmospheric Molecules

Kinetic Studies of the Reactions of O₂(bΣ_g⁺) with Several Atmospheric Molecules

Formation of O2(b1.SIGMA.g+) in the Reaction of NH/ND(a1.DELTA.,v) with O2

Vuv photolysis of hydrazoic acid: Absorption and fluorescence excitation spectra

Contact Info

Product

Resources

About

Temperature-dependent quenching of O2(b 1Σ+g) by H2, D2, CO2, HN3, DN3, HNCO and DNCO

Cited by 14 publications

References 25 publications

Kinetic Studies of the Reactions of O2(bΣg+) with Several Atmospheric Molecules

Kinetic Studies of the Reactions of O2(bΣg+) with Several Atmospheric Molecules

Formation of O2(b1.SIGMA.g+) in the Reaction of NH/ND(a1.DELTA.,v) with O2

Vuv photolysis of hydrazoic acid: Absorption and fluorescence excitation spectra

Contact Info

Product

Resources

About

Kinetic Studies of the Reactions of O₂(bΣ_g⁺) with Several Atmospheric Molecules

Kinetic Studies of the Reactions of O₂(bΣ_g⁺) with Several Atmospheric Molecules