Chromium azide

Chromium azide
Names
	IUPAC name Chromium(III) triazide
	Other names Chromium(III) azide; Chromium triazide;
Identifiers
CAS Number	15557-22-9 ;
3D model (JSmol)	Interactive image;
ChemSpider	25935365;
PubChem CID	129686002;
	InChI InChI=1S/Cr.3N3/c;31-3-2/q+3;3-1 Key: QTGXYCYBAVYYCM-UHFFFAOYSA-N;
	SMILES [N-]=[N+]=[N-].[N-]=[N+]=[N-].[N-]=[N+]=[N-].[Cr+3];
Properties
Chemical formula	Cr(N3)3
Molar mass	178.06 g/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chromium azide is an inorganic chemical compound with the formula Cr(N₃)₃.

Properties

Chromium azide formation has been investigated from chromium salts and sodium azide. It was separated in 1922 through the evaporation of a dry crystalline chromium(III) nitrate solution in absolute alcohol with sodium azide.^[1] Through a spectrophotometric study, it was shown that the chromium(III) nitrate solution's green color was due to the mono-azido-chromium(III) complex. Two absorbency maxima were located at 442 and 605 nm.^[1] Chromium azide has luminescence properties from its optically active Cr³⁺ ions.^[2]

References

^ ^a ^b Sherif, F. G.; Oraby, W. M. (4 August 1960). "The structure of chromium azide: Its instability constant in aqueous solutions". J. Inorg. Nucl. Chem. 17 (1–2): 152–158. doi:10.1016/0022-1902(61)80201-7. Retrieved 30 October 2023.
^ Trzebiatowska, M.; Hermanowicz, K. (3 December 2020). "The mechanism of phase transitions and luminescence properties of azide perovskites". Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 255. doi:10.1016/j.saa.2021.119716. PMID 33784594. S2CID 232430395. Retrieved 30 October 2023.

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[struct-1] Sherif, F. G.; Oraby, W. M. (4 August 1960). "The structure of chromium azide: Its instability constant in aqueous solutions". J. Inorg. Nucl. Chem. 17 (1–2): 152–158. doi:10.1016/0022-1902(61)80201-7. Retrieved 30 October 2023.

[2] Trzebiatowska, M.; Hermanowicz, K. (3 December 2020). "The mechanism of phase transitions and luminescence properties of azide perovskites". Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 255. doi:10.1016/j.saa.2021.119716. PMID 33784594. S2CID 232430395. Retrieved 30 October 2023.

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