Hexanitratoaluminate Explained

Hexanitratoaluminate is an anion of aluminium and six nitrate groups with formula [Al(NO₃)₆]³⁻ that can form salts called hexanitratoaluminates.

Related compounds

Hexaperchloratoaluminate [Al(ClO₄)₆]^3−[1] has perchlorate groups instead of nitrate, and is similarly sensitive to water. Pentanitratoaluminates have five nitrate groups.^[2] Tetranitratoaluminates have only four nitrate groups.^[3]

Examples

A known salt is potassium hexanitratoaluminate K₃[Al(NO₃)₆].

Tetramethylammonium hexanitratoaluminate can be formed from tetramethylammonium chloride, aluminium chloride and dinitrogen tetroxide diluted with nitromethane.^[4]

Rubidium hexanitratoaluminate also exists.^[5]

References

1. Nikitina. Z. K.. V. Ya. Rosolovskii. 1978. Ammonium perchloratoaluminates. Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 27. 3. 449–452. 0568-5230. 10.1007/BF00923912.
2. D'yachenko. O. A.. L. O. Atovmyan. 1975. The molecular and crystal structure of cesium pentanitratoaluminate. Journal of Structural Chemistry. 16. 1. 73–78. 0022-4766. 10.1007/BF00747552. 98400620 .
3. Addison. C. C.. P. M. Boorman . N. Logan . 1966. Anhydrous aluminium nitrate, and the nitronium and alkylammonium tetranitratoaluminates. Journal of the Chemical Society A: Inorganic, Physical, Theoretical. 1434. 0022-4944. 10.1039/J19660001434.
4. Book: Jones, CJ Bigler. Transition and Main Group Metals Applied to Oxidative Functionalization of Methane and Use as High Oxygen Carriers for Rocket Propellants. 4 February 2014. 2007. 978-0-549-23106-6. 164–165,174–175.
5. G. N. Shirokova . S. Ya. Zhuk . V. Ya. Rosolovskii . Russian Journal of Inorganic Chemistry. 1976. 21. 1459. Rubidium hexanitratoaluminate.