Direct Synthesis of Unsolvated Aluminum Hydride Involving
Lewis and Bronsted Acids

B. M. Bulychev, V. N. Verbetskii, and P. A. Storozhenko

Faculty of Chemistry, Moscow State University, Leninskie gory, Moscow, 119899 Russia

Received May 21, 2007

Abstract—Unsolvated aluminum hydride has been synthesized by the “direct” reaction of aluminum bromide
or sulfuric acid with an alkali metal tetrahydroaluminate at 90–102°C in pure toluene or in toluene containing
5–10 wt % diethyl ether. The reaction involving aluminum bromide yields a mixture of unsolvated aluminum
hydride phases of poor quality. The reaction with sulfuric acid affords a single-phase product as -AlH₃ at
90.

DOI: 10.1134/S0036023608070048

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