It is well established that halogenated fullerene derivatives act as synthetic intermediates for further substitution viareplacement with nucleophlies. In the present work, systematic studies were carried out on the synthesis of bromofullerenesunder different experimental conditions. The effect of reaction time on the product formed was observed. We observed theformation of new compound of bromofullerenes in a different stoichiometric ratio i.e., C60Br14; in addition to previousreported bromofullerenes in the stoichiometric ratio of C60Br6, C60Br8, and C60Br24. The new derivative of bromofullerene wasisolated and well characterized by various analytical techniques like FT-IR, TGA, DSC, and elemental analysis. In this paper,detail of the synthesis and characterization of the bromofullerene prepared are described. The yields obtained were better thanthose reported previously.

• Reema Mehrotra(Defence Material and Stores, Research and Developement Establishment)
• Darshan Lal(Defence Material and Stores, Research and Developement Establishment)
• V.S. Tripathi(Defence Material and Stores, Research and Developement Establishment)
• G.N. Mathur(Defence Material and Stores, Research and Developement Establishment)