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Nitryl is the nitrogen dioxide (NO₂) moiety when it occurs in a larger compound as a univalent fragment. Examples include nitryl fluoride (NO₂F) and nitryl chloride (NO₂Cl).

Like nitrogen dioxide, the nitryl moiety contains a nitrogen atom with two bonds to the two oxygen atoms, and a third bond shared equally between the nitrogen and the two oxygen atoms. The nitrogen-centred radical is then free to form a bond with another univalent fragment (X) to produce an N−X bond, where X can be F, Cl, OH, etc.

In organic nomenclature, the nitryl moiety is known as the nitro group. For instance, nitryl benzene is normally called nitrobenzene (PhNO₂).

See also

• Dinitrogen tetroxide
• Nitro compound
• Nitrosyl (R−N=O)
• Isocyanide (R−N≡C)
• Nitryl fluoride
• Nitrate

References

1. Nomenclature of Inorganic Chemistry IUPAC Recommendations 2005 (PDF). IUPAC. 2005. Archived from the original (PDF) on 2014-12-22. Retrieved 2018-11-27.
2. International Union of Pure and Applied Chemistry, Commission on the Nomenclature of Organic Chemistry (1993). A guide to IUPAC nomenclature of organic compounds: Recommendations 1993. Panico, Robert; Powell, Warren H.; Richer, Jean-Claude. Oxford: Blackwell Scientific Publications. ISBN 0632037024. OCLC 27431284.

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