New sonochemical reactions of the C60 fullerene with amino alcohols yielding morpholine–C60 adducts: Fullerenes, Nanotubes and Carbon Nanostructures: Vol 0, No 0

Summary

A selective and environment friendly methodology for the synthesis of beforehand unknown mono-adducts of the C₆₀ fullerene with fused morpholine moieties has been developed primarily based on the response of C₆₀ with amino alcohols, together with biogenic amines (2-aminoethanol, 2-amino-1-phenylethanol, noradrenaline, and adrenaline), in a combined solvent (toluene/DMF) at room temperature below air and ultrasonication. The unconventional anion C₆₀^•‒ (g = 2.0004 and ΔH_1/2 = 3.4 G) was detected as a key intermediate by the EPR methodology upon the synthesis of the C₆₀–morpholine adduct. This intermediate outcomes as a result of one-electron switch from 2-aminoethanol onto the C₆₀ core.