Patrick W. Fowler, Dean Mitchell, Roger Taylor and Gotthard Seifert
Semi-empirical models confirm the stability of bridged dimer structures assigned in the literature to C120, C120O and C120O2, interpreting all three as additions across formal double bonds of the C60 monomers. Analogous structures are proposed and compared for C60/C70 dimers C130, C130O, C130O2, C140, C140O and C140O2.