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The (C60CN)− formed by the reaction of CN− with fullerene shows high electron rich character, very similar to C60˙−, and it behaves as a large anion. Similar to Cp−, the bulky anion, (C60CN)−, acts as a strong η5 ligand towards transition metal centers. Previous studies on η5 coordination of fullerene cage are reported for pseudo fullerenes whereas the present study deals with sandwich complexes of...