Two new methanufullerenes have been prepared by the reaction of C-60 W
ith diazo substituted, potentially monoanionic, terdentate diamino ary
l ligands, yielding a mixture of the open valence [5,6]- and closed va
lence [6,6]isomers. Single isomers of the pure [6,6]-methanofullerenes
were obtained by heating these mixtures in toluene solution. (C) 1998
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