Prismane C8

Prismane C₈ is a theoretically-predicted metastable carbon allotrope comprising an atomic cluster of eight carbon atoms, with the shape of an elongated triangular bipyramid—a six-atom triangular prism with two more atoms above and below its bases.

References

• A New Form of Carbon? Openov, Leonid A.; Elesin, Vladimir F., JETP Lett. 68 (1998) 726-731. doi:10.1134/1.567936

See also

• Allotropes of carbon
• tricarbon
• Prismane, C₆H₆