Theoretical spectroscopic study of acetyl (CH CO), vinoxy (CH CHO), and 1-methylvinoxy (CH COCH ) radicals. Barrierless formation processes of acetone in the gas phase.

Acetone is present in the earth´s atmosphere and extra-terrestrially. The knowledge of its chemical history in these environments represents a challenge with important implications for global tropospheric chemistry and astrochemistry. The results of a search for efficient barrierless pathways producing acetone from radicals in the gas phase are described in this paper.