title: Nitryl
text: # Nitryl
  
  Nitryl is the nitrogen dioxide $(NO_2)$ moiety when it occurs in a larger compound as a univalent fragment. Examples include nitryl fluoride $(NO_2F)$ and nitryl chloride $(NO_2Cl).$
  
  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 $(PhNO_2).$
  
  