Infrared chemiluminescence studies of atomic chlorine + hydrogen iodide, hydrogen bromide, deuterium bromide, phosphine, perdeuterophosphine, and germane: vibrational energy disposal and rate constants

1983 ◽  
Vol 87 (1) ◽  
pp. 64-72 ◽  
Author(s):  
M. A. Wickramaaratchi ◽  
D. W. Setser
Keyword(s):  
Rate Constants ◽  
Vibrational Energy ◽  
Hydrogen Bromide ◽  
Hydrogen Iodide ◽  
Atomic Chlorine

Catalysis by hydrogen halides in the gas phase. XIII. Isopropanol and hydrogen iodide

1967 ◽  
Vol 20 (6) ◽  
pp. 1143 ◽  
Author(s):  
RL Failes ◽  
VR Stimson
Keyword(s):  
Gas Phase ◽  
Hydrogen Chloride ◽  
Rate Constants ◽  
Arrhenius Equation ◽  
Hydrogen Bromide ◽  
Hydrogen Iodide ◽  
Initial Reaction ◽  
Hydrogen Halides ◽  
The Individual

Hydrogen iodide catalyses the decomposition of isopropanol into propene and water at 356 to 457�, viz. �������������������������� i-C3H7OH+HI → C3H6+H2O+HI This is followed by the faster reactions �������������������������� C3H6+HI → i-C3H7I ����� ��������������������i-C3H7I+HI → C3H8+I2������������������������ i-C3H7OH+I2 → (CH3)2CO+2HI The rates of the initial reaction fit the Arrhenius equation ����������������� k2 = 1012.24 exp(-31900/RT) sec-1 ml mole-1 and it is believed to be homogeneous and molecular. It is faster than the corresponding reactions with hydrogen chloride and hydrogen bromide in the ratios 100 : 1 and 5 : 1, respectively. For the overall reaction the amounts of the products formed to 70% reaction, computed with the use of rate constants of the individual reactions, agree well with the amounts found by analysis.

CARS (coherent anti-Stokes Raman scattering) investigations of the intermolecular vibrational energy transfer between nitrogen and carbon dioxide molecules

1993 ◽  
Vol 71 (3-4) ◽  
pp. 142-146 ◽  
Author(s):  
L. Wang ◽  
J. R. Xu ◽  
W. E. Jones
Keyword(s):  
Carbon Dioxide ◽  
Energy Transfer ◽  
Raman Scattering ◽  
Rate Constants ◽  
Transfer Rate ◽  
Vibrational Energy ◽  
Vibrational Energy Transfer ◽  
Scattering Technique ◽  
Anti Stokes ◽  
First Time

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.

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