Disclaimer: This material is being kept online for historical purposes. Though accurate at the time of publication, it is no longer being updated. The page may contain broken links or outdated information, and parts may not function in current web browsers. Visit https://espo.nasa.gov for information about our current projects.

 

Gas-phase photodissociation of CF3C(O)Cl between 193 and 280 nm

McGillen, M. R., and J. Burkholder (2015), Gas-phase photodissociation of CF3C(O)Cl between 193 and 280 nm, Chemical Physics Letters, 639, 189-194, doi:10.1016/j.cplett.2015.09.024.
Abstract: 

Product yields were measured in the 296 K photolysis of CF3 C(O)Cl at 193, 248, 254, and 280 nm. Br2 was used as a radical scavenger to convert the primary CF3 and CF3 CO radical photofragments into stable bromides, CF3 Br and CF3 C(O)Br, which were quantified along with CO and CF2 O using infrared absorption. The stabilized CF3 CO radical yield increased with increasing photolysis wavelength from <0.007 at 193 nm to 0.95+0.05

−0.10 at 280 nm. An upper-limit for the ClCO radical yield was estimated to be <0.004 at all wavelengths. The CF3 Cl quantum yield was determined to be <0.001 at all wavelengths.

PDF of Publication: 
Download from publisher's website.
Research Program: 
Upper Atmosphere Research Program (UARP)