Pentafulvenes are currently under investigation as frameworks for donor-p-acceptor molecules with potential application in organic electronics.  Our research focuses on using a synthetic method for the selective and stepwise attachment of functional substituents at the 1, 3 and 6 positions of the fulvene core.  The synthesis of pentafulvenes conjugated with various combinations of alkyne, aryl, alkyl, thiophenyl, as well as alkyl and aryl amino groups was carried out.  A unique feature of these new molecules is the presence of an electron withdrawing cyanoacetate group at one position to function as anchoring group for TiO2 based dye sensitized solar cell (DSSC) studies.  Synthetic strategies and spectroscopic results, as well as optical, electrochemical, DSSC performance and single crystal X-ray studies of these new molecules will be presented.

Preparation, characterization, and optical studies of highly conjugated fulvene donor-p-acceptor chromophores

246th National Meeting (2013)

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