Solution Dynamics of Covalent Open-[60]Fullerene Dimers.

The translational diffusivity of covalent open-[60]fullerene dimers in an organic solvent was found to be well describable by a prolate ellipsoid model while a monomeric open-[60]fullerene behaves like a sphere model. The water association dynamics were examined for two open-[60]fullerene dimers, showing a higher water affinity for the sp 3 -linked dimer relative to sp 2 -linked dimer owing to an effective orbital-orbital overlap identified by π(fullerene)→σ*(H 2 O) interactions as suggested by theoretical calculations.