Matrix isolation of intermediates on the activated silica surface: mechanisms and efficiencies of photochemical reactions of peroxy radicals.
The technique of matrix isolation on the activated silica surface for the study of mechanisms and determination of efficiencies of photochemical reactions of alkylperoxy radicals has been used. The direct experimental evidence for photochemical dissociation of peroxy radicals via two parallel pathways by the rupture of O-O and C-O bonds under light of wavelength 313 nm has been obtained. It has been found that activated silica surface is not "inert" support in studies of transformations of surface-grafted peroxy radicals.
Melnikov
M
M
Chemical Department, Moscow State University Russia. nikov@melnik.chem.msu.su
Pergushov
V I
VI
Osokina
N
N
D005609:Free Radicals / Q000737:chemistry*; D010545:Peroxides / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*
D005609:Free Radicals; D010545:Peroxides; C049375:perhydroxyl radical; D012822:Silicon Dioxide