Diazoalkane addition reaction on the fullerene dimer C120O and characterization of the resulting mono-adduct
Journal Title: Carbon - Science and Technology - Year 2008, Vol 1, Issue 1
Abstract
A mono-adduct of the fullerene dimer C120O was prepared via a diazoalkane addition reaction to obtain rod-like analogue of [60]PCBM opening the possibility to make photovoltaic and photosensitive layers of supra-molecular and anisotropic order. The mono-adduct was obtained as a mixture containing five isomers. The structure of the mono-adduct was verified by mass-, IR-, and 1H-NMR-spectroscopies. The mono-adduct is readily soluble in common fullerene solvents and shows a broader and stronger optical absorption than [60]PCBM. The mono-adduct features a similar acceptor strength as [60]PCBM and [70]PCBM, is stable in air below 150 °C and in nitrogen below 500 °C. The mono-adduct is expected to be a valuable material for photovoltaic and photosensitive applications.
Authors and Affiliations
Lars Weber, Markus Reinmöller, Uwe Ritter
Keywords
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