Skip to content

C60: Buckminsterfullerene

Why this mattered

The 1985 Nature paper mattered because it established that elemental carbon could form a stable, closed, cage-like molecule: C60. Before this, carbon was conventionally organized around graphite, diamond, and smaller molecular fragments; Kroto, Heath, O’Brien, Curl, and Smalley’s mass-spectrometric evidence pointed to an unexpectedly abundant cluster of sixty carbon atoms, which they interpreted as a truncated icosahedron resembling Buckminster Fuller’s geodesic domes. The key shift was conceptual as much as chemical: carbon was no longer only a network solid or chain/ring chemistry platform, but could also exist as a discrete, highly symmetric molecular cage.

That proposal opened a new field of fullerene chemistry. Once C60 was recognized as a real molecular form, researchers could ask how to make it in bulk, isolate it, functionalize it, place atoms inside it, and measure its electronic, optical, and mechanical properties. The paper therefore made possible a transition from observing carbon clusters in a beam to treating fullerenes as manipulable chemical substances. This quickly led to macroscopic synthesis and purification methods, fullerene derivatives, endohedral fullerenes, and materials studies, including the discovery of superconductivity in alkali-metal-doped C60.

Its broader importance was that it helped inaugurate modern carbon nanoscience. Fullerenes showed that nanoscale carbon structures could have well-defined geometry and distinctive properties arising from curvature and confinement. That insight connects directly to later work on carbon nanotubes, graphene-related systems, molecular electronics, and nanoscale materials design. The paper did not by itself deliver those later technologies, but it changed the set of scientifically plausible carbon architectures and gave chemists and physicists a concrete molecular object around which a new research program could form.

Abstract

(no abstract available)

  • enables → Helical microtubules of graphitic carbon — The discovery of stable curved sp2 carbon cages in C60 motivated Iijima's interpretation of graphitic carbon microtubules as related closed carbon nanostructures.
  • cite ← Helical microtubules of graphitic carbon — Carbon nanotube helicity is linked to C60 by the shared concept that graphitic carbon can form stable curved sp2-bonded fullerene structures.

Sources