Azanide
Azanide is the IUPAC-sanctioned name for the anion NH2−. The term is obscure: derivatives of NH2− are almost invariably referred to as amides, despite the fact that amide also refers to the functional group -CNR2. The anion NH2− is the conjugate base of ammonia, so it is formed by the self-ionization of ammonia. It is produced by deprotonation of ammonia, usually with strong bases or an alkali metal.The alkali metal derivatives are best known, although usually referred to as alkali metal amides. Examples include lithium amide, sodium amide, and potassium amide. These salt-like solids are produced by treating ammonia with strong bases or the alkali metals:.
Potassium amide is prepared similarly.
Transition metal complexes of the amido ligand are often produced by salt metathesis or by deprotonation of metal ammine complexes.
