Photochemical Decomposition of Dibenzoyl Peroxide and Phenyl Benzoate in Solid KBr Matrix

Article abstract of DOI:10.1021/jo00075a012

Physical and photochemical properties of dibenzoyl peroxide (DBPO) and phenyl benzoate (PB) in a solid KBr matrix were investigated.The photoinduced decompositions of DBPO and PB were monitored with infrared spectroscopy and HPLC.The organic molecules at different locations in the matrix contribute to the overall IR absorption differently.Therefore, they are affected differently during a photochemical decomposition.The bromide ions in the matrix intercept some of the radical intermediates in the decomposition of DBPO but have no influence on the radical pair in the rearrangement of phenyl benzoate.