While aromatic in nature, their spherical variety's inability to delocalize over the entire molecule leads to slight anionic character.
Adding DBU to a solution of 1,2,3-trimethylbenzene is a popular method of purifying these compounds, and Ottero and Biddau have recently described a direct synthesis of them via cyclohydrogenation. One type of these molecules has optical properties described by the Kataura plot and has zigzag, chiral, and armchair configurations. Azomethane ylides are utilized in the Prato 1,3-dipolar cycloaddition of these molecules while the Bingel reaction is a widely used method for the cyclopropanation of this class of molecules. Synthesized using the Humann-Kratschmer method of arc-discharge, laboratory purification of these compounds often involves columns of Elorit carbon. While aromatic in nature, their spherical variety's inability to delocalize over the entire molecule leads to slight anionic character. Found as rings, clusters, and nanotubes, this is, for ten points, what class of molecule named for an architect and includes its most famous member, C60.
Adding DBU to a solution of 1,2,3-trimethylbenzene is a popular method of purifying these compounds, and Ottero and Biddau have recently described a direct synthesis of them via cyclohydrogenation.
{Buckministerfullerenes} or {buckyballs} or carbon {nanotube}