Fullerene

Fullerene structure ‒ Modification of coal **Molecular formula:** C₆₀ **Molar mass:** 720.67 g/mol **Description:** Fullerenes are molecules made up entirely of carbon atoms arranged in layers that can form various geometric shapes, such as spheres, ellipsoids, tubes (known as nanotubes) or rings. Similar to graphite, fullerenes consist of interconnected hexagonal rings, but they also include pentagonal and sometimes heptagonal rings, which prevent the layers from being flat. This unique arrangement gives fullerenes remarkable stability and makes them highly resistant to external physical forces. The hollow cavity within fullerene molecules can encapsulate other atoms, ions, or even small molecules.