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Pure Appl. Chem., 2001, Vol. 73, No. 2, pp. 355-359

Chemistry of η5-fullerene metal complexes

Eiichi Nakamura and Masaya Sawamura

Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan

Abstract: Treatment of [60]fullerene with an organocopper reagent converts one of the pentagons of the fullerene into cyclopentadienyl anion through addition of five organic groups on every peripheral carbon atom surrounding the pentagon. Similar treatment of [70]fullerene afforded indenyl anion through regioselective tri-addition of the organic group. These anionic moieties strongly interact with the remainder of the fullerene p-system, and provide unique opportunity for exploration of organometallic chemistry of a new class of metal cyclopentadienides.