15min:

KRISTA COHEN AND C. A. BAUMANN, Department of Chemistry, The University of Scranton, Scranton, PA 18510-4626.

Vinyl acetate (C₄H₆O₂) was isolated in matrices of nitrogen, argon, and krypton. The ultraviolet irradiation ( < 250 nm) of the matrix results in the formation of a number of products including carbon dioxide, carbon monoxide and ketene (CH₂CO). Irradiation of the vinyl-¹³C₂ labeled compound yields a mixture of labeled and unlabeled CH₂CO, CO₂ and CO, indicating that these products arise from the acetyl and the vinoxy moieties. The product ¹²C/¹³C ratios vary with matrix (N₂>Ar>Kr). The photolysis efficiency is reduced when the parent compound is deuterated.