NEW INTRAMOLECULAR EXCIPLEXES BETWEEN POLYNUCLEAR AROMATIC HYDROCARBONS AND HEAD-TO-HEAD VS HEAD-TO-TAIL PHOTODIMERIZATION OF MONOSUBSTITUTED ANTHRACENES

Article abstract of DOI:10.1016/S0040-4039(01)81949-3

New dissymetrical non conjugated bichromophores linked by an oxygenated chain: (9-anthrylmethoxymethyl)arenes have been prepared.Ic-d and II exhibit intramolecular exciplex fluorescence in methylcyclohexane at room temperature.Intramolecular photoadducts were not found but Ia-d yield a mixture of head-to-head and head-to-tail anthracenic photodimers.