Nepedia
Back to Discover
Advanced Reader
⚛️

Buckminsterfullerene

physical science Maturity 11-13 Next article →

Buckminsterfullerene is a unique type of carbon molecule. It is often called a "buckyball" by scientists.

Buckball-electronic-str en
Buckball-electronic-str en

This molecule is a member of a larger group called fullerenes. It is famous for its hollow, cage-like structure. This shape is known mathematically as a truncated icosahedron. The molecule is a black solid in its pure form. When dissolved in certain solvents, it creates a deep purple solution.

C60 Fullerene solution
C60 Fullerene solution

Understanding this molecule helps us learn about how carbon can organize itself.

The structure of buckminsterfullerene is very precise. It consists of exactly 60 carbon atoms. These atoms are arranged at the vertices of a shape made of 32 faces. There are 20 hexagons and 12 pentagons in the structure.

Buckball-electronic-str en
Buckball-electronic-str en

No two pentagons ever share a vertex. The molecule has 90 edges that connect the atoms. Some edges connect two hexagons, while others connect a hexagon to a pentagon. The bonds between two hexagons are shorter than the others. The average bond length is 0.14 nanometers. The total diameter of the molecule is about 1.01 nanometers.

Buckball-electronic-str en
Buckball-electronic-str en

Scientists have found several ways to create and study these molecules. One common method is through the laser ablation of graphite. This involves using a laser to vaporize carbon. This creates a hot plasma that is passed through helium gas. The carbon species then cool and form clusters. Another method involves the pyrolysis of aromatic hydrocarbons. This process produces soot that contains fullerenes. Researchers can then extract the molecules using organic solvents. They use a tool called a Soxhlet extractor to collect them.

C60-Fulleren-kristallin
C60-Fulleren-kristallin

The discovery of buckminsterfullerene changed the field of chemistry. In 1984, researchers Eric Rohlfing, Donald Cox, and Andrew Kaldor first generated the molecule. They used a laser to vaporize carbon in a helium beam. However, they did not realize they had made buckminsterfullerene. In 1985, a team at Rice University confirmed the discovery. This team included Harold Kroto, James R. Heath, Sean C. O'Brien, Robert Curl, and Richard Smalley. They used laser vaporization on graphite to create carbon clusters. They found a strong peak at 720 daltons. This number indicated a molecule with 60 carbon atoms. For this discovery, Kroto, Curl, and Smalley won the 1996 Nobel Prize in Chemistry.

Buckminsterfullerene is a very common fullerene in nature. Small amounts can be found in soot. It also exists in the vastness of space. It can be seen in planetary nebulae and near certain types of stars. An ionized form of the molecule exists in the interstellar medium. This form causes absorption features called diffuse interstellar bands in near-infrared light.

UV-Vis C60
UV-Vis C60

These observations connect tiny molecules to the largest structures in the universe.

The molecule has many surprising physical properties. In solid form, the molecules arrange themselves in a pattern called face-centered cubic.

Fullerite structure
Fullerite structure

This solid is normally as soft as graphite. However, if you compress it to less than 70% of its volume, it changes. It transforms into a superhard form of diamond. The molecule can also act as a semiconductor. If you add alkali metals into the gaps of the crystal, it can become a superconductor. This means it can carry electricity with almost no resistance.

The name of the molecule honors an important person. It is named after the architect R. Buckminster Fuller. He was known for designing geodesic dome structures. These large buildings look very similar to the shape of a buckyball.

Football Pallo valmiina-cropped
Football Pallo valmiina-cropped

Today, the study of fullerenes continues to grow. Scientists explore how they react with elements like fluorine, chlorine, or oxygen. These studies help us understand new ways to build materials at the atomic level.

597 words

Where will your curiosity go next?

Keep exploring at your chosen reading level.

🖼️ Images & Media (13)
File:Football Pallo valmiina-cropped.jpg
Football Pallo valmiina-cropped.jpg
File:Buckball-electronic-str en.svg
Buckball-electronic-str en.svg
File:Dodecahedron t12 v.png
Dodecahedron t12 v.png
File:Dodecahedron t12 e56.png
Dodecahedron t12 e56.png
File:Dodecahedron t12 e66.png
Dodecahedron t12 e66.png
File:Icosahedron t01 A2.png
Icosahedron t01 A2.png
File:Icosahedron t01 H3.png
Icosahedron t01 H3.png
File:C60 Fullerene solution.jpg
C60 Fullerene solution.jpg
File:UV-Vis C60.jpg
UV-Vis C60.jpg
File:C60-Fulleren-kristallin.JPG
C60-Fulleren-kristallin.JPG
File:Fullerite structure.jpg
Fullerite structure.jpg
File:Addition of O atom into C60 Scheme.png
Addition of O atom into C60 Scheme.png

+ 1 more

More to explore

🔬 Go deeper

More advanced topics to explore

🪜 Step back

Simpler topics to build understanding

What is Nepedia?

A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.