Rate coefficients and production of vibrationally excited HCl from the reactions of chlorine atoms with methanol, ethanol, acetaldehyde and formaldehyde
文献信息
Paul W. Seakins, John J. Orlando, Geoffrey S. Tyndall
Room temperature rate coefficients have been determined for the reactions of Cl (2P3/2) atoms with methanol, ethanol, formaldehyde and acetaldehyde. Cl atoms were produced by laser flash photolysis of molecular chlorine, in the presence of oxygen to prevent chain chemistry. IR emission from vibrationally excited HCl was observed for all reagents. For the reactions with methanol and acetaldehyde the kinetics have been determined by both IR diode laser absorption spectroscopy (kCl+CH3OH = (5.83 ± 0.77) × 10−11 cm3 molecule−1 s−1kCl+CH3CHO = (7.7 ± 1.1) × 10−11 cm3 molecule−1 s−1) and IR chemiluminescence (kCl+CH3OH = (5.38 ± 0.25) × 10−11 cm3 molecule−1 s−1, kCl+CH3CHO = (8.8 ± 1.5) × 10−11 cm3 molecule−1 s−1. For ethanol and formaldehyde IR chemiluminescence measurements gave kCl+HCHO = (6.98 ± 0.69) × 10−11 cm3 molecule−1 s−1 and kCl+C2H5OH = (1.02 ± 0.19) × 10−10 cm3 molecule−1 s−1. The fraction of vibrationally excited HCl was determined relative to that of acetaldehyde and when put on an absolute scale the values for methanol, ethanol and formaldehyde were: 0.25 ± 0.04, 0.21 ± 0.03 and 0.91 ± 0.14 respectively.
期刊推荐

Molecular Pharmacology

Pharmacological Reviews

Journal of Catalysis

Nature

Organic Preparations and Procedures International

Proceedings of the National Academy of Sciences of the United States of America

Science Progress

Russian Chemical Reviews

European Journal of Wood and Wood Products

Journal of Physics and Chemistry of Solids
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