Abstract

GOMEZ, Sebastián  and  DUARTE, Alvaro. SYNTHESIS OF FULLEROLS FROM A C60 BROMOFULLERENE. Rev.Colomb.Quim. [online]. 2009, vol.38, n.1, pp.83-95. ISSN 0120-2804.

Two fullerols were synthesized by means of basic hydrolysis of the compound C60Br24 at 60°C after 22 hours of reaction in presence of atmospheric oxygen, using KOH/ C60Br24 molar ratios of 109 and 184. The initial geometry does not hold upon substitution of Bromine atoms and the obtained fullerols have anionic nature and showed complex structures including hydroxyl groups and hemiketal groups. It was determined that the acid treatment or the ionic exchange with mixed type H+/OH- resin caused the appearance of carbonyl groups in the structure. Products were characterized by elemental analysis, infrared spectroscopy, UV-Vis, MALDI-TOF, 1H-NMR, TGA and DSC.

Keywords : C60; bromofullerenes; fullerols; fullerenols.

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