Natural diamond, seen here, has a cubic packing structure. But a much rarer form of diamond has hexagonal packing and has now ...

The graphite studied here has natural (Bernal) stacking, but there is another stable allotrope of graphite -- rhombohedral.

These different forms are known as allotropes. Ozone is an allotrope of oxygen, for example, while graphite and diamond are both allotropes of carbon. A section of the periodic table.

The name “black nitrogen” is from similar allotrope black phosphorus, which American Elements describes as “a layered semiconducting material similar in appearance to graphite with numerous ...

Benzene: History fasts forwards The debate over the cumulenic and polyyinic bonding in cyclocarbons echoes similar discussions over the bonding in benzene C 6 H 6 – a ring of six carbon atoms like the ...

Its X-ray structure is shown below. This molecule is notable both as one of the very few macrocyclic polyphenylenes known (polyphenylenes are molecules composed entirely of substituted phenyl groups) ...

Predicting a metallic carbon allotrope: Pop-graphite via Na–C compounds Journal: Applied Physics Letters Published: 2025-03-24 DOI: 10.1063/5.0254662 Affiliations: 3 Authors: 10 Go to article ...