Boron carbides

Boron carbides are boron–carbon compounds.

Boron carbide (B₄C)

B₁₃C₂

α-tetragonal boron

α-tetragonal boron is a boron-rich isotropic boron carbide.

Borafullerenes

Borafullerenes are a class of heterofullerenes in which the element substituting for carbon is boron.