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| Names | |
|---|---|
| Pronunciation | /ˈæzənaɪd/ |
| IUPAC name
Azanide | |
Other names
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| Identifiers | |
3D model (JSmol) |
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| ChEBI | |
| ChemSpider | |
PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| NH−2 | |
| Molar mass | 16.023 g·mol−1 |
| Conjugate acid | Ammonia |
| Structure | |
| Bent | |
| Related compounds | |
Other anions |
|
Related isoelectronic |
water, fluoronium |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Azanide is the IUPAC-sanctioned name for the anion NH−2. The term is obscure; derivatives of NH−2 are almost invariably referred to as amides,[1][2][3] despite the fact that amide also refers to the organic functional group –C(=O)−NR2. The anion NH−2 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. Azanide has a H–N–H bond angle of 104.5°.
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 liquid ammonia with strong bases or directly with the alkali metals (blue liquid ammonia solutions due to the solvated electron):[1][2][4]
Silver(I) amide (AgNH2) is prepared similarly.[3]
Transition metal complexes of the amido ligand are often produced by salt metathesis reaction or by deprotonationofmetal ammine complexes.
