Matrix Isolation and Computational Study on the Photolysis of CHCl₂COCl

Nobuaki Tanaka

Department of Environmental Science and Technology, Faculty of Engineering, Shinshu University, Nagano, Japan.

DOI: 10.4236/ojpc.2014.43014                

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.

Keywords

Dichloroacetyl Chloride, Photolysis, Cryogenic Matrix

Conflicts of Interest

The authors declare no conflicts of interest.

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