The possibility of using a disclination approach to the description of the structures and properties of fullerenes was considered. It was shown that the conversion of a planar C monolayer into a spherical macromolecule could be viewed as being the result of introducing 12 disclinations, with a power of π/3, into the original layer.

A Disclination-Based Approach to Describing the Structure of Fullerenes. A.L.Kolesnikova, A.E.Romanov: Fizika Tverdogo Tela, 1998, 40[6], 1178-80 (Physics of the Solid State, 1998, 40[6], 1075-7)