Nitrogen oxide

Nitrogen oxide may refer to a binary compound of oxygen and nitrogen, or a mixture of such compounds:

Charge-neutral

• Nitric oxide (NO), nitrogen(II) oxide, or nitrogen monoxide
• Nitrogen dioxide (), nitrogen(IV) oxide
• Nitrogen trioxide (), or nitrate radical
• Nitrous oxide (), nitrogen(0,II) oxide
• Dinitrogen dioxide (), nitrogen(II) oxide dimer
• Dinitrogen trioxide (), nitrogen(II,IV) oxide
• Dinitrogen tetroxide (), nitrogen(IV) oxide dimer
• Dinitrogen pentoxide (), nitrogen(V) oxide, or nitronium nitrate
• Nitrosyl azide (), nitrogen(−I,0,I,II) oxide
• Nitryl azide ()
• Oxatetrazole ()
• Trinitramide ( or ), nitrogen(0,IV) oxide

Anions

Cations

• Nitrosonium ( or )
• Nitronium ( or )

Atmospheric sciences

In atmospheric chemistry:

• (or NOx) refers to the sum of NO and .
• (or NOy) refers to the sum of and all oxidized atmospheric odd-nitrogen species (e.g. the sum of , , , etc.)
• (or NOz) = −
• Mixed Oxides of Nitrogen ("MON"): solutions of nitric oxide in dinitrogen tetroxide/nitrogen dioxide.

Stability

Due to relatively weak N–O bonding, all nitrogen oxides are unstable with respect to and , which is the principle behind the catalytic converter, and prevents the oxygen and nitrogen in the atmosphere from combusting.

See also

• Nitrate
• Nitrogen oxide sensor
• Sulfur nitrides, which are valence isoelectronic with nitrogen oxides

References