Abstract
Benzoporphyrins fused with acenaphthylene or fluoranthene (3) and (4) were prepared by the condensation of bicyclo[2.2.2]octadiene(BCOD)-fused tripyrrane (5) with appropriate pyrrole dialdehydes (13) or (14) and the subsequent retro Diels-Alder reaction. The absorptions of these new porphyrins were very intense at both Soret and Q bands, which might be useful as organic dyes for solar cells.
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