Nitrogen oxide
Nitrogen oxide may refer to a binary compound of oxygen and nitrogen, or a mixture of such compounds:
Nitric oxide, also known as nitrogen monoxide (NO), nitrogen(II) oxide
Nitrogen dioxide (NO2), nitrogen(IV) oxide
Nitrous oxide (N2O), nitrogen(−I,III) oxide
Nitrosylazide (N4O), nitrogen(−I,0,I,II) oxide
Oxatetrazole (N4O)
Dinitrogen trioxide (N2O3), nitrogen(II,IV) oxide
Dinitrogen tetroxide (N2O4), nitrogen(IV) oxide
Dinitrogen pentoxide (N2O5), nitrogen(V) oxide
Trinitramide (N(NO2)3 or N4O6), nitrogen(0,IV) oxide
Nitrite (NO−
2)
Nitrate (NO−
3)
Nitronium (NO+
2)
Nitrosonium (NO+
)
peroxonitrite (ONO−
2)
The compounds NO and NO2 are radicals.
In addition, there are several anions of nitrogen oxides. The most stable of these is the nitrate anion:
Nitrate (NO3−), trioxonitrate(V) ion
but other nitrogen oxoanions include nitrite, peroxonitrite, trioxodinitrate (hyponitrate), and nitroxylate.
In atmospheric chemistry, air pollution, and related fields, nitrogen oxides refers specifically to NOx (NO and NO2).
