Issue 0, 1966

Anhydrous aluminium nitrate, and the nitronium and alkylammonium tetranitratoaluminates

Abstract

Conditions are described under which reaction of the 9-hydrate of aluminium nitrate with excess of dinitrogen pentoxide gives the 1 : 1 adduct Al(NO3)3,N2O5. The anhydrous nitrate can be obtained from this adduct by sublimation in a vacuum. The pentoxide bonds tenaciously to aluminium nitrate, and compounds Al(NO3)3,xN2O5(where O < x < 1) are usually the initial products. Reaction of aluminium bromide with chlorine nitrate, followed by sublimation, gave Al(NO3)3,0·4N2O5. The infrared spectrum of the 1 : 1 adduct identifies it as the salt (NO2+)[Al(NO3)4]. This, and the salt (Et4N)[Al(NO3)4], are the first substantiated examples of the [Al(NO3)4] ion. For the tetraethylammonium salt the infrared spectrum, the ultraviolet spectrum of solutions in acetonitrile, and the electrical conductivity of solutions in nitromethane are discussed.

Article information

Article type
Paper

J. Chem. Soc. A, 1966, 1434-1437

Anhydrous aluminium nitrate, and the nitronium and alkylammonium tetranitratoaluminates

C. C. Addison, P. M. Boorman and N. Logan, J. Chem. Soc. A, 1966, 1434 DOI: 10.1039/J19660001434

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