Multiple choice

Among the following allotropes, which one is a predicted metastable carbon allotrope ?

  1. Chaoite

  2. Body-centered cubic carbon

  3. Body-centered tetragonal carbon

  4. Prismane C8

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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.

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