Dinitrogen dioxide
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
1035
UNII
  • InChI=1S/N2O2/c3-1-2-4
    Key: AZLYZRGJCVQKKK-UHFFFAOYSA-N
  • linear: N(=O)N=O
  • cyclic: O1N=NO1
  • bicyclic: O1N2N1O2
Properties
N2O2
Molar mass 60.012 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Dinitrogen dioxide is an inorganic compound having molecular formula N
2O
2. 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 initio calculations and is the only one that has been experimentally produced.[1] In the solid form, the molecules have C2v symmetry: the entire structure is planar, with the two oxygen atoms cis across the N–N bond. The O–N distance is 1.15 Å, the N–N distance is 2.33 Å, and the O=N–N angle is 95°.[2]

References

  1. ^ Nguyen, Kiet A.; Gordon, Mark S.; Montgomery, John A. Jr.; Michels, H. Harvey (October 1994). "Structures, Bonding, and Energetics of N2O2 Isomers". The Journal of Physical Chemistry. 98 (40): 10072–10078. doi:10.1021/j100091a021.
  2. ^ Park, Jong Keun; Sun, Hosung (1999). "Theoretical Determination of Geometrical Structures of the Nitric Oxide Dimer, (NO)2". Bulletin of the Korean Chemical Society (in Korean). 20 (12): 1399–1408. ISSN 0253-2964.
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