PHOTOLYSE DE L'IODURE DE VINYLE EN SOLUTION DANS LE TETRACHLORURE DE CARBONE

1964 ◽  
Vol 42 (10) ◽  
pp. 2262-2274 ◽  
Author(s):  
Pierre C. Roberge ◽  
Jan A. Herman
Keyword(s):  
Carbon Tetrachloride ◽  
Vinyl Chloride ◽  
Hydrogen Iodide ◽  
Diffusion Controlled ◽  
Vinyl Iodide

The photolysis of vinyl iodide in carbon tetrachloride solutions gives several products among which the most important are: acetylene, hydrogen iodide, iodine, ethylene, and vinyl chloride. A mechanism based on diffusion-controlled disproportionation of geminate radicals, as first proposed by Hamill, agrees well with the observed phenomena. To explain the diminishing production of ethylene and iodine with increasing concentration of the monomer, it is necessary to postulate a telomerization of the vinyl iodide.

TPEPICO Spectroscopy of Vinyl Chloride and Vinyl Iodide: Neutral and Ionic Heats of Formation and Bond Energies

2008 ◽  
Vol 112 (25) ◽  
pp. 5647-5652 ◽  
Author(s):  
Nicholas S. Shuman ◽  
Melony A. Ochieng ◽  
Bálint Sztáray ◽  
Tomas Baer
Keyword(s):  
Vinyl Chloride ◽  
Heats Of Formation ◽  
Bond Energies ◽  
Vinyl Iodide

Radiolysis of ethyl iodide – chloromethane mixtures

1970 ◽  
Vol 48 (8) ◽  
pp. 1273-1279 ◽  
Author(s):  
R. M. Leblanc ◽  
M. A. West ◽  
R. J. Woods ◽  
J. A. Herman
Keyword(s):  
Carbon Tetrachloride ◽  
Hydrogen Chloride ◽  
Electron Capture ◽  
Radical Scavenging ◽  
Ethyl Iodide ◽  
Hydrogen Iodide ◽  
Absorbed Energy ◽  
Γ Radiation ◽  
Chlorine Anion ◽  
Ion Molecule Reactions

Mixtures of ethyl iodide with chloroform, carbon tetrachloride, and dichloromethane have been irradiated with 60Co γ-radiation. Reduced yields of iodine, hydrogen iodide, and hydrogen chloride from ethyl iodide – chloroform and ethyl iodide – dichloromethane mixtures and of chlorinated ethanes from ethyl iodide – chloroform are attributed to radical scavenging by iodine and dissociative electron capture by the chlorinated methane.Electron capture by carbon tetrachloride followed by ion–molecule reactions between ethyl iodide cations and ethyl iodide, or neutralization of these cations by chlorine anions, explains iodine yields observed at low ethyl iodide concentrations in carbon tetrachloride greater than those expected on the basis of partition of absorbed energy. In this mixture, neutralization of an ethyl iodide cation by a chlorine anion gives rise to an enhanced hydrogen chloride yield.

Sign in / Sign up

Export Citation Format

Share Document