Nitryl azide

Nitryl azide
Names
	IUPAC name N-diazonitramide
	Other names Nitryl azide; Tetranitrogen dioxide;
Identifiers
CAS Number	40006-84-6;
3D model (JSmol)	Interactive image;
PubChem CID	22902439;
	InChI InChI=1S/N4O2/c1-2-3-4(5)6 Key: DYMRYCZRMAHYKE-UHFFFAOYSA-N;
	SMILES [N-]=[N+]=N[N+](=O)[O-];
Properties
Chemical formula	N4O2
Molar mass	88.026 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Nitryl azide (tetranitrogen dioxide) is an unstable nitrogen oxide consisting of a covalent nitrogen–nitrogen bond between a nitro group and an azide. It has been detected by infrared spectroscopy as a short-lived product of the reaction between sodium azide and nitronium hexafluoroantimonate:[1]

The compound quickly decomposes to form nitrous oxide. Calculations suggest this process that occurs via an oxatetrazole oxide intermediate:[2]

References

Doyle, Michael P.; Maciejko, James J.; Busman, Stanley C. (1973). "Reaction between azide and nitronium ions. Formation and decomposition of nitryl azide". J. Am. Chem. Soc. 95 (3): 952–953. doi:10.1021/ja00784a069.
Zeng, Xiaoqing; Ge, Maofo; Sun, Zheng; Bian, Jiang; Wang, Dianxun (2007). "Gaseous nitryl azide N₄O₂: A joint theoretical and experimental study". Journal of Molecular Structure. 840 (1–3): 59–65. doi:10.1016/j.molstruc.2006.11.034.

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[Doyle-1] Doyle, Michael P.; Maciejko, James J.; Busman, Stanley C. (1973). "Reaction between azide and nitronium ions. Formation and decomposition of nitryl azide". J. Am. Chem. Soc. 95 (3): 952–953. doi:10.1021/ja00784a069.

[Zeng-2] Zeng, Xiaoqing; Ge, Maofo; Sun, Zheng; Bian, Jiang; Wang, Dianxun (2007). "Gaseous nitryl azide N₄O₂: A joint theoretical and experimental study". Journal of Molecular Structure. 840 (1–3): 59–65. doi:10.1016/j.molstruc.2006.11.034.