Kinetic study of the elementary chemical reaction atomic hydrogen(2S1/2) + molecular oxygen(1.DELTA.g) .fwdarw. hydroxyl(2.pi.) + atomic oxygen(3P) in the gas phase

1986 ◽  
Vol 90 (9) ◽  
pp. 1900-1906 ◽  
Author(s):  
W. Hack ◽  
H. Kurzke
Keyword(s):  
Kinetic Study ◽  
Gas Phase ◽  
Molecular Oxygen ◽  
Chemical Reaction ◽  
Atomic Hydrogen ◽  
Atomic Oxygen ◽  
Elementary Chemical Reaction ◽  
Elementary Chemical

Elementary Chemical-Reaction Processes on Silicon Surfaces*1

1993 ◽  
Vol 32 (Part 1, No. 3A) ◽  
pp. 1171-1181 ◽  
Author(s):  
Jun Yoshinobu ◽  
Shin-ichiro Tanaka ◽  
Mitsuaki Nishijima
Keyword(s):  
Chemical Reaction ◽  
Silicon Surfaces ◽  
Elementary Chemical Reaction ◽  
Reaction Processes ◽  
Elementary Chemical

The formation of O2(a1Δg) in homogeneous and heterogeneous atom recombination

1986 ◽  
Vol 64 (12) ◽  
pp. 1614-1620 ◽  
Author(s):  
A. A. Ali ◽  
E. A. Ogryzlo ◽  
Y. Q. Shen ◽  
P. T. Wassell
Keyword(s):  
Kinetic Study ◽  
Gas Phase ◽  
Molecular Oxygen ◽  
Rate Constant ◽  
Room Temperature ◽  
High Efficiency ◽  
Flow System ◽  
Order Reaction ◽  
Third Order ◽  
First Order

The recombination of oxygen atoms has been studied in a discharge flow system at room temperature. The yield of O2(a1Δg) in the recombination on Pyrex has been found to be 0.08 (±0.02). In the gas phase, O2(a) was found to be formed in a process that is second order in [O] and first order in [N2]. The rate constant for this third-order reaction was found to be 3.4 (±0.4) × 10−34 cm6∙molecule−2∙s−1, representing a yield of 0.07 (±0.02). In the presence of molecular oxygen, the rate of production of O2(a) was found to increase. A kinetic study of this effect led to the conclusion that collisions of molecular oxygen with an unidentified precursor can produce O2(a) with high efficiency.

Resonances in the Entrance Channel of the Elementary Chemical Reaction of Fluorine and Methane

2013 ◽  
Vol 53 (4) ◽  
pp. 1122-1126 ◽  
Author(s):  
Till Westermann ◽  
Jongjin B. Kim ◽  
Marissa L. Weichman ◽  
Christian Hock ◽  
Tara I. Yacovitch ◽  
...  
Keyword(s):  
Chemical Reaction ◽  
Entrance Channel ◽  
Elementary Chemical Reaction ◽  
Elementary Chemical

The origin of light emission in the atomic hydrogen—acetylene flame

1964 ◽  
Vol 282 (1389) ◽  
pp. 275-282 ◽  
Keyword(s):  
Gas Phase ◽  
Atomic Hydrogen ◽  
Atomic Oxygen ◽  
Light Emission ◽  
Reactive Intermediates ◽  
Hydrogen Atoms ◽  
Electronically Excited ◽  
Catalytic Recombination ◽  
Oxygen Atoms

Acetylene catalyzes the gas phase recombination of hydrogen atoms, and frequently the reaction is accompanied by a bright flame. It is shown that the light emission is not the result of the catalytic recombination, but is caused by traces of water in the hydrogen. The possible reactive intermediates, OH, HO 2 and atomic oxygen, have been individually generated and added to the mixture of hydrogen atoms and acetylene. Only oxygen atoms are effective in causing luminescence. Hydrogen atoms are not necessary for light emission, but they do alter the spectrum somewhat. Two different mechanisms for the formation of electronically excited C 2 are required. The mechanism for the reaction of atomic oxygen with acetylene is discussed.

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