Abstract—
We have for the first time determined the temperature dependence of heat capacity for aurostibite, AuSb2, by adiabatic calorimetry and calculated its standard thermodynamic functions in a wide temperature range. At a temperature of 298.15 K, we have obtained \(C_{p}^{^\circ }\) = 76.01 ± 0.15 J/(mol K), S° = 133.4 ± 0.3 J/(mol K), Н°(298.15 K) − Н°(0)= 17.39 ± 0.03 kJ/mol, and Ф° = 75.02 ± 0.15 J/(mol K). Using previously reported data and the present results, we have found ΔfG°(298.15) = −11.36 ± 0.90 kJ/mol.
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ACKNOWLEDGMENTS
In this work, we used equipment at the Shared Physical Characterization Facilities Center, Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences.
Funding
This work was supported by the Russian Federation Ministry of Science and Higher Education (state research target for the Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, basic research).
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Tyurin, A.V., Chareev, D.A. & Polotnyanko, N.A. Thermodynamic Properties of AuSb2 . Inorg Mater 56, 1229–1233 (2020). https://doi.org/10.1134/S002016852012016X
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DOI: https://doi.org/10.1134/S002016852012016X