Cage Adaption by High-Pressure Synthesis: The Clathrate-I Borosilicide Rb8B8Si38

Hübner, Julia-Maria; Jung, Walter; Schmidt, Marcus; Bobnar, Matej; Koželj, Primož; Böhme, Bodo; Baitinger, Michael; Etter, Martin; Grin, Yuri; Schwarz, Ulrich

doi:10.1021/acs.inorgchem.0c02357

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Cage Adaption by High-Pressure Synthesis: The Clathrate-I Borosilicide Rb₈B₈Si₃₈

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Hübner, Julia-Maria
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons141066

Jung, Walter
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126835

Schmidt, Marcus
Marcus Schmidt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons146769

Bobnar, Matej
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons247344

Koželj, Primož
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126538

Böhme, Bodo
Bodo Böhme, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126529

Baitinger, Michael
Michael Baitinger, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons253025

Etter, Martin
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126626

Grin, Yuri
Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126841

Schwarz, Ulrich
Ulrich Schwarz, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Hübner, J.-M., Jung, W., Schmidt, M., Bobnar, M., Koželj, P., Böhme, B., et al. (2021). Cage Adaption by High-Pressure Synthesis: The Clathrate-I Borosilicide Rb₈B₈Si₃₈. Inorganic Chemistry, 60(4), 2160-2167. doi:10.1021/acs.inorgchem.0c02357.

Cite as: https://hdl.handle.net/21.11116/0000-0007-7D96-4

Abstract

Rb8B8Si38 forms under high-pressure, high-temperature conditions at p = 8 GPa and T = 1273 K. The new compound (space group Pm3¯ n, a = 9.9583(1) Å) is the second example for a clathrate-I borosilicide. The phase is inert against strong acids and bases and thermally stable up to 1300 K at ambient pressure. (Rb+)8(B-)8(Si0)38 is electronically balanced, diamagnetic, and shows semiconducting behavior with moderate Seebeck coefficient below 300 K. Chemical bonding analysis by the electron localizability approach confirms the description of Rb8B8Si38 as Zintl phase. © 2020 American Chemical Society.