C. Lugez et al., INFRARED MATRIX-ISOLATION STUDIES OF THE REACTIONS OF DICHLOROMETHANEAND DIBROMOMETHANE WITH ATOMIC OXYGEN, Journal of physical chemistry, 97(45), 1993, pp. 11617-11624
The reactions of atomic oxygen with CH2Cl2 and CH2Br2 trapped in argon
matrices have been studied by FTIR spectroscopy. O(1D) and (O(3P))-P-
3 were generated in situ by UV photolysis of co-deposited ozone. Produ
cts were identified by employing O-18 and scrambled O-18/O-16 ozone as
well as deuterated methylene halides. Kinetic studies performed on bo
th CH2Cl2 and CH2Br2 With O(1D) under the same experimental conditions
allowed the reaction pathways to be determined. With CH2Br2 as parent
molecule, three routes were evident leading to (i) CHOBr, (ii) CO...(
HBr)2, and (iii) CH2O. With CH2Cl2 as parent molecule, only the first
two channels were observed. Carbonyl compounds rapidly decomposed unde
r irradiation, and CO...(HX)2 was also produced as a secondary species
.