 This article covers the chemistry of these so-called "buckyballs," while the chemistry of carbon nanotubes is covered in carbon nanotube chemistry.Fullerene or C60 is soccer-ball-shaped or "Ih" with 12 pentagons and 20 hexagons.According to Euler's theorem these 12 pentagons are required for closure of the carbon network consisting of "n" hexagons and C60 is the first stable fullerene because it is the smallest possible to obey this rule.