Supramolecular association behavior of a strong C60 receptor with conjugated pentacene and tetrathiafulvalene moieties in solution and in the solid state

A pi-extended tetrathiafulvalene (exTTF) containing a conjugated pentacene moiety showed a large binding affinity toward C-60 in solution. The crystal structure analysis of the cocrystal formed by this exTTF and C-60 revealed that strong pi-pi interactions existed between C-60 and naphthalene and 1,3-dithiol-2-ylidene units.