Berger, R. M. published the artcileStable cation formation and luminescence on inorganic oxide surfaces: 9-phenylxanthenyl cation, Application of 9-Phenyl-9H-xanthen-9-ol, the publication is Chemical Physics Letters (1990), 169(3), 213-17, database is CAplus.
The alc. 9-phenylxanthen-9-ol (I) was adsorbed on silica gel and alumina surfaces. Under room temperature conditions the 9-phenylxanthenyl cation (II) was formed and stabilized on silica gel. Steady state fluorescence studies show II fluoresces with λmax = 210 nm and that this luminescence occurs via both direct excitation of II as well as adiabatic dehydroxylation of the excited singlet of I. Time-resolved experiments show II has a fluorescence lifetime on silica gel of 37 ± 2 ns and is quenched by oxygen at a rate of 1.5 × 104 torr-1 s-1.
Chemical Physics Letters published new progress about 596-38-3. 596-38-3 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Benzene,Alcohol, name is 9-Phenyl-9H-xanthen-9-ol, and the molecular formula is C19H14O2, Application of 9-Phenyl-9H-xanthen-9-ol.
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