C₆₀^2- Chemistry: C₆₀ Adducts Bearing Two Ester, Carbonyl, or Alcohol Groups

Reactions of activated halo compounds XCH₂-A (X = Br, I; A = ester, ketone) with C₆₀^2- anion give rise to C₆₀(CH₂-A)₂ adducts (major products) along with unexpected methanofullerenes C₆₀>CH-A and monosubstituted dihydrofullerenes C₆₀(H)(CH₂-A) (minor products). Methanofullerenes are shown to come from side reactions with X₂CH-A traces.