Synthesis and characterization of a novel [60]fullerene-tetrathiafulvalene dyad Original Research Article

A novel [60]fullerene-tetrathiafulvalene dyad (4) was prepared by Bingel reaction of C60 and 2,3-bis{[(methoxycarbonyl)acetoxy]ethylthio}-6,7-bis(hexadecylthio)tetrathiafulvalene (3) in the presence of iodine and diazabicyclo[5.4.0]undec-7-ene, and characterized by spectroscopy and electrochemical study. It was found that the paramagnetic signals (g=2.0027, line width 0.1540 mT) were shown in the EPR spectrum of the derivative at room temperature without photoinduction, indicating efficient intramolecular electron transfer between both electroactive moieties.