Diazo group

The C–N–N grouping of a diazo compound, with important octet contributors $\mathrm{C}={\mathrm{N}}^{+}={\mathrm{N}}^{-}$ and ${\mathrm{C}}^{-}-{\mathrm{N}}^{+}\equiv \mathrm{N}$. The electronic structure is delocalized over the connected framework.