Abstract

AbstractA series of 9H‐fluorenols and 9H, 9′H‐bifluorenyls were irradiated in less polar solvents giving photoproducts derived from their corresponding 9H‐fluorenyl radicals. These transient species were directly observed by laser flash photolysis and their UV/visible spectra compared with those of their corresponding cations. Theoretical calculations (density functional theory [DFT]) of these intermediates indicate their destabilizing nature in similar fashion to the antiaromatic character of the corresponding cations.

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