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Low-Temperature Heat Capacity and Thermodynamic Functions of AlH3 and AlD3

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Abstract

The thermodynamic properties of AlH3 and AlD3 were evaluated from low-temperature heat capacity measurements. For α-AlH3 , C 0 p (298.15 K) = 41.14 ± 0.13 J/(mol K), S 0(298.15 K) = 30.62 ± 0.14 J/(mol K), H 0(298.15 K) – H 0(0) = 5527 ± 15 J/mol, and Φ0(298.15 K) = 12.08 ± 0.06 J/(mol K). For α-AlD3 , C 0 p (298.15 K) = 50.82 ± 0.04 J/(mol K), S 0(298.15 K) = 36.74 ± 0.12 J/(mol K), H 0(298.15 K) – H 0(0) = 6801 ± 10 J/mol, and Φ0(298.15 K) = 13.93 ± 0.04 J/(mol K).

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    K. S. Gavrichev, V. E. Gorbunov, S. I. Bakum & A. D. Izotov

  2. Vernadskii Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, ul. Kosygina 19, Moscow, 117975, Russia

    V. M. Gurevich

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  1. K. S. Gavrichev
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  2. V. E. Gorbunov
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  3. S. I. Bakum
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  4. V. M. Gurevich
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  5. A. D. Izotov
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Gavrichev, K.S., Gorbunov, V.E., Bakum, S.I. et al. Low-Temperature Heat Capacity and Thermodynamic Functions of AlH3 and AlD3 . Inorganic Materials 38, 661–664 (2002). https://doi.org/10.1023/A:1016228022379

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