An analysis of the kinetics for the nitrogen (A 3.SIGMA.u+,v') + carbon monoxide (X1.SIGMA.+, v'' = 0) energy-transfer reaction and an upper limit for the rate constants of the reactions carbon dioxide (a 3.PI.,v' = 0 and 1) + tetrafluoromethane

1992 ◽  
Vol 96 (21) ◽  
pp. 8445-8447 ◽  
Author(s):  
Joseph M. Thomas ◽  
Glenn Stark ◽  
Daniel H. Katayama
1993 ◽  
Vol 71 (3-4) ◽  
pp. 142-146 ◽  
Author(s):  
L. Wang ◽  
J. R. Xu ◽  
W. E. Jones

The CARS (coherent anti-Stokes Raman scattering) technique has been used for the first time to observe directly the vibrational energy transfer between nitrogen N2 (X1Σ, ν = 1, 2) and carbon dioxide. The transfer-rate constants were determined as (1.0 ± 0.1) × 1011 cm3 mol−1 s−1 and (1.7 ± 0.4) × 1011 cm3 mol−1 s−1 for N2(ν = 1) and N2(ν = 2), respectively.


2000 ◽  
Vol 113 (12) ◽  
pp. 4869 ◽  
Author(s):  
Cecilia Coletti ◽  
Gert D. Billing

1964 ◽  
Vol 19 (1) ◽  
pp. 13-18 ◽  
Author(s):  
S. Dondes ◽  
P. Harteck ◽  
H. Von Weyssenhoff

The gamma radiolysis of carbon monoxide in the presence of the rare gases (Ar, Kr and Xe) has been studied with and without the application of an electric field. The results showed that energy transfer producing excited species is the important phenomen. Specifically, excited CO molecules will react with other CO molecules producing carbon dioxide and carbon suboxide polymer.


2005 ◽  
Vol 3 (3) ◽  
pp. 387-403 ◽  
Author(s):  
Efstathios Kamaratos

AbstractIntensity enhancement due to the addition of discharged O2 is examined for background N2 (B Πg → A3Σu+) emissions in various flowing nitrogen afterglows. Possible implications are reported for the experimentally determined rate constants for the reactions {N2 (A3Σu+, υ) + O(3P)}, and {O2 (a1Δg) + N(4S)}, as a result of the present study. The present, as well as previously reported, N2 (B Πg → A3Σu+) emissions intensity enhancements suggest complementary conclusions. Previous differences in experimental results reported for the {O2 (a1Δg) + N(4S)} reaction [based on studies observing the decay of either O2 (a1Δg) molecules or N(4S) atoms alone] are reconciled by a unifying additional interpretation. This interpretation leads to a rate constant estimate for the energy transfer reaction, {O2 (a1Δg) + N(2(A3Σu+)}, deduced to account for the above N2 (B3Πg → A3Σu+) emissions intensity enhancements.


The paper describes an investigation of the reaction with ozone and the deactivation of O 2 ( 1 Ʃ + g ). A flow technique was employed, and O 2 ( 1 Ʃ + g ) was produced photochemically by the sequence of reactions: O 2 + hv (λ=1470Å) → O( 1 D ) + O( 3 P ), (4) O( 1 D ) + O 2 ( 3 Ʃ - g ) → O 2 ( 1 Ʃ + g ) + O( 3 P ). (5) The advantages achieved by this method of generation of the excited species are discussed. Rate constants were obtained for the reaction of O 2 ( 1 Ʃ + g ) with ozone, and for its quenching by N 2 , and an estimate is made of the efficiency of wall deactivation. An upper limit is suggested for the quenching of O 2 ( 1 Ʃ + g ) by molecular oxygen. The results are compared with those of earlier investigations, and the comparison is used to calculate the rate constant of the ‘energy-pooling’ reaction: O 2 ( 1 ∆ g ) + O 2 ( 1 ∆ g ) → O 2 ( 1 Ʃ + g ) + O 2 ( 3 Ʃ - g ). (1) Measurement of the concentrations of O 2 ( 1 Ʃ + g ) and of atomic oxygen formed on photolysis allows the efficiency of the energy transfer process (5) to be assessed relative to the efficiency of quenching by O 2 , N 2 or Ar. The several rate constants measured or estimated are tabulated at the end of the paper in table 3.


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