Nitryl fluoride

Nitryl fluoride

Identifiers
CAS Number	10022-50-1 Y
3D model (JSmol)	Interactive image
ChemSpider	59588 N
ECHA InfoCard	100.030.007
EC Number	233-021-0
PubChem CID	66203
UNII	DAT2I9R64A N
InChI InChI=1S/FNO2/c1-2(3)4 N Key: JVJQPDTXIALXOG-UHFFFAOYSA-N N InChI=1/FNO2/c1-2(3)4 Key: JVJQPDTXIALXOG-UHFFFAOYAU
SMILES [N+](=O)([O-])F
Properties
Chemical formula	NO2F
Molar mass	65.0039 g/mol
Melting point	−166 °C (−267 °F; 107 K)
Boiling point	−72 °C (−98 °F; 201 K)
Related compounds
Other anions	nitryl chloride, nitryl bromide
Other cations	nitrosyl fluoride, sulfuryl fluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YN ?)
Infobox references

Nitryl fluoride, NO₂F, is a colourless gas and strong oxidizing agent, which is used as a fluorinating agent and has been proposed as an oxidiser in rocket propellants (though never flown). It is a molecular species, not ionic, consistent with its low boiling point. The structure features planar nitrogen with a short N-F bond length of 135 pm.

Henri Moissan and Lebeau recorded the preparation of nitryl fluoride in 1905 by the fluorination of nitrogen dioxide. This reaction is highly exothermic, which leads to contaminated products. The simplest method avoids fluorine gas but uses cobalt(III) fluoride:

The CoF₂ can be regenerated to CoF₃. Other methods have been described.

The thermodynamic properties of this gas were determined by IR and Raman spectroscopy The standard heat of formation of FNO₂ is -19 ± 2 kcal/mol.3

Nitryl fluoride can be used to prepare organic nitro compounds and nitrate esters.