Nitrogen oxide may refer to a

binary compound In materials chemistry, a binary phase or binary compound is a chemical compound containing two different elements. Some binary phase compounds are molecular, e.g. carbon tetrachloride (CCl4). More typically binary phase refers to extended soli ...

oxygen Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as ...

and

nitrogen Nitrogen is the chemical element with the symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at se ...

, or a mixture of such compounds:

Charge-neutral

* Nitric oxide (NO), nitrogen(II) oxide, or nitrogen monoxide *

Nitrogen dioxide Nitrogen dioxide is a chemical compound with the formula . It is one of several nitrogen oxides. is an intermediate in the industrial synthesis of nitric acid, millions of tons of which are produced each year for use primarily in the productio ...

(), nitrogen(IV) oxide * Nitrogen trioxide (), or nitrate radical *

Nitrous oxide Nitrous oxide (dinitrogen oxide or dinitrogen monoxide), commonly known as laughing gas, nitrous, or nos, is a chemical compound, an oxide of nitrogen with the formula . At room temperature, it is a colourless non-flammable gas, and has ...

(), nitrogen(0,II) oxide *

Dinitrogen dioxide Dinitrogen dioxide is an inorganic compound having molecular formula . Many structural isomers are possible. The covalent bonding pattern O=N–N=O (a non-cyclic dimer of nitric oxide (NO)) is predicted to be the most stable isomer based on ab in ...

(), nitrogen(II) oxide

dimer Dimer may refer to: * Dimer (chemistry), a chemical structure formed from two similar sub-units ** Protein dimer, a protein quaternary structure ** d-dimer * Dimer model, an item in statistical mechanics, based on ''domino tiling'' * Julius Dimer ...

Dinitrogen trioxide Dinitrogen trioxide is the chemical compound with the formula N2O3. It is one of the simple nitrogen oxides. It forms upon mixing equal parts of nitric oxide and nitrogen dioxide and cooling the mixture below −21 °C (−6 °F): :NO + ...

(), nitrogen(II,IV) oxide * Dinitrogen tetroxide (), nitrogen(IV) oxide

Dinitrogen pentoxide Dinitrogen pentoxide is the chemical compound with the formula , also known as nitrogen pentoxide or nitric anhydride. It is one of the binary nitrogen oxides, a family of compounds that only contain nitrogen and oxygen. It exists as colourless c ...

(), nitrogen(V) oxide, or nitronium nitrate *

Nitrosyl azide Nitrosyl azide is a highly labile nitrogen oxide with chemical formula . Synthesis Nitrosyl azide can be synthesized via the following reaction of sodium azide and nitrosyl chloride at low temperatures: : Properties Below −50 °C, n ...

(), nitrogen(−I,0,I,II) oxide * Nitryl azide () *

Oxatetrazole A heterocyclic compound or ring structure is a cyclic compound that has atoms of at least two different elements as members of its ring(s). Heterocyclic chemistry is the branch of organic chemistry dealing with the synthesis, properties, an ...

() *

Trinitramide Trinitramide is a compound of nitrogen and oxygen with the molecular formula N(NO2)3. The compound was detected and described in 2010 by researchers at the Royal Institute of Technology (KTH) in Sweden. It is made of a nitrogen atom bonded to thre ...

( or ), nitrogen(0,IV) oxide

Anions

Nitroxide Aminoxyl denotes a radical functional group with general structure R2N–O•. It is commonly known as a nitroxyl radical or a nitroxide, however IUPAC discourages the use of these terms, as they erroneously suggest the presence of a nitro group. ...

() * Nitrite ( or ) * Nitrate () *

Peroxynitrite Peroxynitrite (sometimes called peroxonitrite) is an ion with the formula ONOO−. It is a structural isomer of nitrate, Preparation Peroxynitrite can be prepared by the reaction of superoxide with nitric oxide: : It is prepared by the react ...

( or ) * Peroxynitrate ( or ) *

Orthonitrate Orthonitrate is a tetrahedral oxoanion of nitrogen with the formula . It was first identified in 1977 and is currently known in only two compounds, sodium orthonitrate (Na3NO4) and potassium orthonitrate (K3NO4). The corresponding oxoacid, orthon ...

(, analogous to phosphate ) *

Hyponitrite In chemistry, hyponitrite may refer to the anion ( N=NOsup>2−), or to any ionic compound that contains it. In organic chemistry, it may also refer to the group −O−N=N−O−, or any organic compound with the generic formula R1−O−N=N� ...

( or ) *

Trioxodinitrate Angeli's salt, sodium trioxodinitrate, is the inorganic compound with the formula Na2 2O3 It contains nitrogen in an unusual reduced state. It is a colorless, water-soluble solid, a salt. In research, this salt is used as a source of the metasta ...

or hyponitrate ( or ) *

Nitroxylate Nitroxylic acid or hydronitrous acid is an unstable reduced oxonitrogen acid. It has formula H4N2O4 containing nitrogen in the +2 oxidation state. The corresponding anion called nitroxylate is or . The first clue that nitroxylic acid exists was wh ...

( or ) * Dinitramide ( or )

Cations

* Nitrosonium ( or ) * Nitronium ( or )

Atmospheric sciences

atmospheric chemistry Atmospheric chemistry is a branch of atmospheric science in which the chemistry of the Earth's atmosphere and that of other planets is studied. It is a multidisciplinary approach of research and draws on environmental chemistry, physics, meteorol ...

: * (or NO''x'') refers to the sum of NO and . * (or NO''y'') refers to the sum of and all oxidized atmospheric odd-nitrogen species (e.g. the sum of , , , etc.) * (or NO''z'') = − Image:Nitric-oxide-3D-vdW.png, Image:Nitrogen-dioxide-3D-vdW.png, Image:Nitrous-oxide-3D-vdW.png, Image:Dinitrogen-trioxide-3D-vdW.png, Image:Dinitrogen-tetroxide-3D-vdW.png, Image:Dinitrogen-pentoxide-3D-vdW.png, Image:Trinitramide-3D-spacefill.png,

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 A catalytic converter is an vehicle emissions control, exhaust emission control device that converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalysis, catalyzing a redox chemic ...

and prevents the

combustion Combustion, or burning, is a high-temperature exothermic redox chemical reaction between a fuel (the reductant) and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke. Combus ...

of the atmosphere.

References