TITLE:
Matrix Isolation and Computational Study on the Photolysis of CHCl2COCl
AUTHORS:
Nobuaki Tanaka
KEYWORDS:
Dichloroacetyl Chloride, Photolysis, Cryogenic Matrix
JOURNAL NAME:
Open Journal of Physical Chemistry,
Vol.4 No.3,
July
31,
2014
ABSTRACT: UV light photolysis of
dichloroacetyl chloride (CHCl2COCl) has been investigated by
infrared spectroscopy in cryogenic Ar, Kr, Xe, and O2 matrices. The formation of CHCl3 and CO was found to be the dominant
process over the ketene formation. The C-C bond cleaved products CHCl2 and COCl were also observed. As the
number of the chlorine atom substitution to methyl group of acetyl chloride
increased, the C-C bond cleaved product yield in the triplet state increased,
which can be attributed to an internal heavy-atom effect where the intersystem
crossing rate was enhanced.