M. Inoue et al., PHOTOCHEMICAL SYNTHESES OF FULLERENE-AMINE ADDUCTS AND THEIR CHARACTERIZATION WITH H-1-NMR SPECTROSCOPY, Journal of molecular structure, 345, 1995, pp. 113-117
Photoreactions of C-60 With aromatic or aliphatic amines in contact wi
th air gave a new type of amine adduct with a general compound formula
of C-60(amine)(x)(OH)(y)O-z; the amine was di-2-pyridylamine, morphol
ine or N,N-dimethylethylenediamine. The N,N-dimethylethylenediamine ad
duct was obtained as a hydrochloride. Its H-1 NMR spectrum showed that
the adduct cation, obtained after functionalizing C-60, formed an ion
pair with a benzenesulfonate anion.