The ability to form Langmuir films of a perfluoro C-60 derivative has
been investigated. Continuous and stepwise compression processes have
both exhibited the obtention of a thermodynamically stable monomolecul
ar layer at the air-water interface. Mixed with two equivalents of a f
luorinated tetrathiafulvalene derivative, the fullerene compound forms
high quality Langmuir-Blodgett films, with a well-defined intrinsic r
epeat distance along the surface normal of the plane.