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Non-solvated aluminum hydride. Crystallization from diethyl ether-benzene solutions

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Abstract

Crystallization of non-solvated aluminum hydride from a diethyl ether-benzene mixed solvent was studied. The desolvation of AlH3·(Et2O)x etherate in solution and the crystallization of α-AlH3 during polythermal heating of the solution occur only in the presence of ≥10 wt.% LiAlH4. The process is multistage, and the crystallization begins with the formation of the AlH3·0.25Et2O solvate, which recrystallizes in the solid phase into γ-AlH3 and then α-AlH3. Four crystalline modifications of aluminum hydride were characterized by X-ray diffraction and electron microscopy.

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Authors and Affiliations

  1. Department of Chemistry, M. V. Lomonosov Moscow State University, 1 Leninskie Gory, 119992, Moscow, Russian Federation

    B. M. Bulychev, V. N. Verbetskii, A. I. Sizov, T. M. Zvukova & V. K. Genchel’

  2. Institute of Problems of Chemical Physics, Russian Academy of Sciences, 1 prosp. Akad. Semenova, 142432, Chernogolovka, Moscow Region, Russian Federation

    V. N. Fokin

Authors
  1. B. M. Bulychev
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  2. V. N. Verbetskii
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  3. A. I. Sizov
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  4. T. M. Zvukova
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  5. V. K. Genchel’
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  6. V. N. Fokin
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Correspondence to B. M. Bulychev.

Additional information

Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1259–1265, July, 2007.

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Bulychev, B.M., Verbetskii, V.N., Sizov, A.I. et al. Non-solvated aluminum hydride. Crystallization from diethyl ether-benzene solutions. Russ Chem Bull 56, 1305–1312 (2007). https://doi.org/10.1007/s11172-007-0199-5

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  • DOI: https://doi.org/10.1007/s11172-007-0199-5

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