INCORPORATION OF AN ACYL GROUP IN FULLEROPYRROLIDINES - EFFECTS ON LANGMUIR MONOLAYERS

The properties of Langmuir layers made up of a series of derivatized f ulleropyrrolidines featuring hydrogenated and fluorinated acyl chains have been investigated, focusing on their ability to form a monomolecu lar layer. We have found that compounds with hydrocarbon chains form f loating films on the subphase whose thickness depends on the concentra tion of the spreading solution as observed in pure C-60. On the contra ry, the fluorinated derivative gives rise to monomolecular layers irre spective of the concentration values.