Determination of the ultra long range spin-spin coupling constants using overall line shape analysis in the1H NMR spectra of fullerene-C60 cycloadducts with 1-(4-nitrophenyl)-3-phenylnitrile ylide
On the basis of the overall signal line shape in the1H NMR spectra of [6,6]-closed and [5,6]-open fullerene-C60 cycloadducts with 1-(4-nitrophenyl)-3-phenylnitrile ylide we determined the values of the long range spin-spin coupling for the aliphatic proton of the heterocyclic fragment with the aromatic protons.