Chemistry - A European Journal · 1998 · 90 citations · 0 references
Natural SciencesChemistryMedicinal ChemistrySpectroscopyLuminescent MaterialsOptical SpectroscopyPhotochemical KineticsPhotochemistryUltraviolet-visible SpectroscopyChromophore PhotochemistryPhotochemical Reaction KineticsPhotophysical MechanismsPhotophysical Rate Constants
The three [6,6]-ring bridged methanofullerenes 1, 2, and 3 were synthesized; their ground-state absorption spectra in toluene and cyclohexane solutions are presented and possible assignments discussed. Although these three molecules are very different, they have very similar triplet–triplet spectra and near-unity values for the quantum yield for O2(1Δg) production by energy transfer from the triplet states, implying that the quantum yield of triplet production is approximately 1.