Apart from this, the alkali metals are such strong reducing agents that they can even reduce buckminsterfullerene to produce solid fullerides MnC60; sodium, potassium, rubidium, and caesium can form fullerides where n = 2, 3, 4, or 6, and rubidium and caesium additionally can achieve n = 1.
ɐpˈɑːɹt fɹʌm ðˈɪs, ðɪ ˈælkəlˌaɪ mˈɛɾəlz ɑːɹ sˈʌtʃ stɹˈɔŋ ɹᵻdˈuːsɪŋ ˈeɪdʒənts ðæt ðeɪ kæn ˈiːvən ɹᵻdˈuːs bˈʌkmɪnstɚfˌʊlɚɹˌɛn tə pɹədˈuːs sˈɑːlɪd fˈʊlɚɹˌaɪdz ˌɛmˈɛn sˈiː sˈɪksti; sˈoʊdiəm, pətˈæsiəm, ɹuːbˈɪdiəm, ænd sˈiːsiəm kæn fˈɔːɹm fˈʊlɚɹˌaɪdz wˌɛɹ ˈɛn ˈiːkwəlz tˈuː, θɹˈiː, fˈoːɹ, ɔːɹ sˈɪks, ænd ɹuːbˈɪdiəm ænd sˈiːsiəm ɐdˈɪʃənəli kæn ɐtʃˈiːv ˈɛn ˈiːkwəlz wˈʌn.