Nitrosyl fluoride
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| Names | |
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IUPAC name
Nitrosyl fluoride
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| Other names
Nitrogen oxyfluoride
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| Identifiers | |
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3D model (JSmol)
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| Abbreviations | NOF |
| ChemSpider | |
| ECHA InfoCard | 100.029.230 |
| EC Number | 232-153-6 |
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PubChem CID
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| Properties | |
| NOF | |
| Molar mass | 49.0045 g mol−1 |
| Appearance | Colourless gas |
| Density | 2.657 mg mL−1 |
| Melting point | −166 °C (−267 °F; 107 K) |
| Boiling point | −72.4 °C (−98.3 °F; 200.8 K) |
| Reacts | |
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Related compounds
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| Infobox references | |
Nitrosyl fluoride, NOF, is a covalently bonded nitrosyl compound.
NOF is a highly reactive fluorinating agent that converts many metals to their fluorides, releasing nitric oxide in the process:
NOF also fluorinates fluorides to form adducts that have a salt-like character, such as NOBF4.
Aqueous solutions of NOF are powerful solvents for metals, by a mechanism similar to that seen in aqua regia. Nitrosyl fluoride reacts with water to form nitrous acid, which then forms nitric acid:
Nitrosyl fluoride can also convert alcohols to nitrites:
It has a bent molecular shape: this can be rationalized in the VSEPR model in terms of the lone-pair of electrons located on the N atom.
Nitrosyl fluoride is used as a solvent and as a fluorinating and nitrating agent in organic synthesis. It has also been proposed as an oxidizer in rocket propellants.
Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN .
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