Synthesis of 4-aziridino[C60]fullerene-1,8-naphthalimide (C60-NI dyads) and their photophysical properties

A series of 4-aziridino[C60]fullerene-1,8-naphthalimide (C60-NI) dyads 4 ([6,6]-closed ring) were synthesized as the only addition product from the reaction of C60 with the corresponding azide compounds 3 under microwave irradiation in good yield. A quenching of fluorescence was shown in dyads 4, and this decay was evidenced to be an intramolecular process.

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