Chemistry:Nitrogen oxide
From HandWiki
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 (NO
2), nitrogen(IV) oxide - Nitrogen trioxide (NO
3), or nitrate radical - Nitrous oxide (N
2O), nitrogen(0,II) oxide - Dinitrogen dioxide (N
2O
2), nitrogen(II) oxide dimer - Dinitrogen trioxide (N
2O
3), nitrogen(II,IV) oxide - Dinitrogen tetroxide (N
2O
4), nitrogen(IV) oxide dimer - Dinitrogen pentoxide (N
2O
5), nitrogen(V) oxide, or nitronium nitrate [NO
2]+
[NO
3]− - Nitrosyl azide (N
4O), nitrogen(−I,0,I,II) oxide - Nitryl azide (N
4O
2) - Oxatetrazole (N
4O) - Trinitramide (N(NO
2)
3 or N
4O
6), nitrogen(0,IV) oxide
Anions
| Name | Formula |
|---|---|
| Nitroxide | O=N− |
| Nitrite | O=N–O− or NO− 2 |
| Nitrate | NO− 3 |
| Peroxynitrite | O=N–O–O− or NO− 3 |
| Peroxynitrate | O 2N–O–O− or NO− 4 |
| Orthonitrate | NO3− 4, analogous to phosphate PO3− 4 |
| Hyponitrite | − O–N=N–O− or N 2O2− 2 |
| Trioxodinitrate or hyponitrate | [O 2NNO]2− or [N 2O 3]2− |
| Nitroxylate | (− O–) 2N–N(–O− ) 2 or N 2O4− 4 |
| Dinitramide | O 2N–N− –NO 2 or N 3O− 4 |
Cations
- Nitrosonium (N≡O+
or [NO]+
) - Nitronium (O=N+
=O or [NO
2]+
)
Atmospheric sciences
- NO {x} (or NOx) refers to the sum of NO and NO
2.[1][2] - NO {y} (or NOy) refers to the sum of NO
x and all oxidized atmospheric odd-nitrogen species (e.g. the sum of NO
x, HNO
3, HNO
2, etc.) - NO
z (or NOz) = NO
y − NO
x
- Mixed Oxides of Nitrogen ("MON"): solutions of nitric oxide in dinitrogen tetroxide/nitrogen dioxide.
Nitric oxide, NO
Nitrogen dioxide, NO
2
Nitrous oxide, N
2O
Dinitrogen trioxide, N
2O
3
Dinitrogen tetroxide, N
2O
4
Dinitrogen pentoxide, N
2O
5
Trinitramide, N
4O
6
Stability
Due to relatively weak N–O bonding, all nitrogen oxides are unstable with respect to N
2 and O
2, 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
- ↑ United States Clean Air Act, 42 U.S.C. § 7602
- ↑ Seinfeld, John H.; Pandis, Spyros N. (1997), Atmospheric Chemistry and Physics: From Air Pollution to Climate Change, Wiley-Interscience, ISBN 0-471-17816-0, https://archive.org/details/atmosphericchemi0000sein
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