The molecular structure and the potential energy surface of the low ly
ing states of CF3 COF are examined using the ah initio method. The C-F
bond cleavage reaction, involving a carbon atom double bonded to an o
xygen atom (carrying an n lone pair) and a fluorine atom cr to it, is
also studied. The state correlation diagrams for this reaction are cal
culated. The main features of these diagrams and their relevance to th
e reaction mechanism studies are discussed.