Fullerenic fluorocarbons: Synthesis, structure and properties

FLUO 15

Olga V. Boltalina, ovbolt@lamar.colostate.edu1, Ivan E. Kareev2, Natalia B. Shustova1, Igor V. Kuvychko1, Alexey A Popov3, Lothar Dunsch, l.dunsch@ifw-dresden.de4, Sergei F. Lebedkin5, Konrad Seppelt, seppelt@chemie.fu-berlin.de6, and Steven H. Strauss, steven.strauss@colostate.edu1. (1) Department of Chemistry, Colorado State University, Fort Collins, CO 80523, (2) Russian Academy of Sciences, Institute of Problems of Chemical Physics, Chernogolovka, Moscow region, 142432, Russia, (3) Chemistry Department, Moscow State University, Moscow 199899, Russia, (4) Group of Electrochemistry and Conducting Polymers, Leibniz-Institute for Solid State and Materials Research (IFW) Dresden, Helmholtzstr. 20, Dresden, 01069, Germany, (5) Forschungszentrum Karlsruhe, Institute for Nanotechnology, 76021 Karlsruhe, Germany, (6) Institut für Chemie, Freie Universität Berlin, Fabeckstrasse 34-36, D-14195 Berlin, Germany
Among the known fluorocarbons, fluoroalkylated derivatives of fullerenes represent a group of compounds, which were only recently prepared and structurally characterized. The first x-ray single crystal structure of the trifluoromethyl derivative was reported in 2005. Exceptional stability of perfluoroalkylated fullerenes, their excellent electron accepting properties and advances in the efficient methods of preparation and purification make these new fluorocarbons especially attractive for both fundamental and applied studies.

In this report, we'll be present an overview of the recent work on perfluoroalkylated fullerenes, that was carried out in our laboratories. Significant progress was made in the development of the high-yield, selective synthetic procedures, which allowed us to isolate multi-mg quantities of the isomerically pure compounds, with compositions ranging from 2-4 Rf groups per cage to 20 and higher. Subsequent structural, spectroscopic and electrochemical studies have been carried out for many of those compounds, revealing interesting fundamental trends and promising technological applications.