Cage Adaption by High-Pressure Synthesis: The Clathrate-I Borosilicide Rb(8)B(8)Si(38)

[Image: see text] Rb(8)B(8)Si(38) forms under high-pressure, high-temperature conditions at p = 8 GPa and T = 1273 K. The new compound (space group Pm3̅n, 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...

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Detalles Bibliográficos
Autores principales: Hübner, Julia-Maria, Jung, Walter, Schmidt, Marcus, Bobnar, Matej, Koželj, Primož, Böhme, Bodo, Baitinger, Michael, Etter, Martin, Grin, Yuri, Schwarz, Ulrich
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7887739/
https://www.ncbi.nlm.nih.gov/pubmed/33104343
http://dx.doi.org/10.1021/acs.inorgchem.0c02357
Descripción
Sumario:[Image: see text] Rb(8)B(8)Si(38) forms under high-pressure, high-temperature conditions at p = 8 GPa and T = 1273 K. The new compound (space group Pm3̅n, 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)(Si(0))(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 Rb(8)B(8)Si(38) as Zintl phase.

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