graphene layer

https://doi.org/10.1351/goldbook.G02683
A single carbon layer of the graphite structure, describing its nature by analogy to a polycyclic aromatic hydrocarbon of quasi infinite size.
Note:
Previously, descriptions such as @[email protected] layers, carbon layers or carbon sheets have been used for the term graphene. Because @[email protected] designates that modification of the @[email protected] carbon, in which planar sheets of carbon atoms, each atom bound to three neighbours in a honeycomb-like structure, are stacked in a three-dimensional regular order, it is not correct to use for a single layer a term which includes the term @[email protected], which would imply a three-dimensional structure. The term graphene should be used only when the reactions, structural relations or other properties of individual layers are discussed.
Source:
PAC, 1995, 67, 473. 'Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)' on page 491 (https://doi.org/10.1351/pac199567030473)