Nitrate radical

Nitrate radical
Names
	IUPAC name Nitrate radical
	Systematic IUPAC name Trioxidonitrogen(•)
Identifiers
CAS Number	12033-49-7;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:29329;
ChemSpider	13268797;
Gmelin Reference	1573
PubChem CID	5360456;
	InChI InChI=1S/NO3/c2-1(3)4 Key: YPJKMVATUPSWOH-UHFFFAOYSA-N;
	SMILES [N+](=O)([O-])[O];
Properties
Chemical formula	NO3
Molar mass	62.004 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Trioxidonitrogen(•) or nitrate radical is an oxide of nitrogen with formula NO
₃, consisting of three oxygen atoms covalently bound to a nitrogen atom. This highly unstable blue compound has not been isolated in pure form, but can be generated and observed as a short-lived component of gas, liquid, or solid systems.

Like nitrogen dioxide NO
₂, it is a radical (a molecule with an unpaired valence electron), which makes it paramagnetic. It is the uncharged counterpart of the nitrate anion NO⁻
₃ and an isomer of the peroxynitrite radical OONO.

Nitrogen trioxide is an important intermediate in reactions between atmospheric components, including the destruction of ozone.

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