Reaction of diazocompounds with C70: unprecedented synthesis and characterization of isomeric [5,6]-fulleroids

Abstract

The synthesis of a variety of PCBM-type [5,6]-fulleroids and their further highly selective photoisomerization to the respective [6,6]-methanofullerenes is presented. Interestingly, the chemical reactivity of [5,6]-fulleroids reveals the same trend (a > b > c > d) to that observed for pristine C₇₀ (α > β > γ > δ).