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  Synthesis, crystal structure, and physical properties of a new boride Ga2Ni21B20 with a modified Zn2Ni21B20-type structure

Zheng, Q., Gumeniuk, R., Schnelle, W., Prots, Y., Burkhardt, U., & Leithe-Jasper, A. (2016). Synthesis, crystal structure, and physical properties of a new boride Ga2Ni21B20 with a modified Zn2Ni21B20-type structure. Solid State Sciences, 55, 93-97. doi:10.1016/j.solidstatesciences.2016.02.011.

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Zheng, Qiang1, Autor           
Gumeniuk, Roman2, Autor           
Schnelle, Walter3, Autor           
Prots, Yurii4, Autor           
Burkhardt, Ulrich5, Autor           
Leithe-Jasper, Andreas6, Autor           
Affiliations:
1Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
2Roman Gumeniuk, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863421              
3Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863441              
4Yuri Prots, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863424              
5Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863422              
6Andreas Leithe-Jasper, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863406              

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 Zusammenfassung: A ternary boride Ga2Ni21B20, with modified Zn2Ni21B20-type structure (space group I4/mmm, and lattice parameters a = 7.2164(1) angstrom, c = 14.2715(4) angstrom), was synthesized from the constituent elements. Single crystal diffraction data reveal Ni at 8f site splitting into 16m position with nearly half occupancy. In this structure, [Ni6B20] cages share ligand boron atoms with [Ga2B4Ni9] hexa-capped square prisms, forming two dimensional layers. Layers are interconnected via Ga-Ni interactions and build up a three-dimensional framework. Quasi-two-dimensional infinite planar nets formed by intercrossed Ni atoms are embedded. Ga2Ni21B20 is a metallic Pauli paramagnet, in agreement with electronic structure calculations, resulting in 8.2 states eV(-1) f.u(-1) at the Fermi level. (C) 2016 Elsevier Masson SAS. All rights reserved.

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Sprache(n): eng - English
 Datum: 2016-05-012016-05-01
 Publikationsstatus: Erschienen
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Titel: Solid State Sciences
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Paris : Elsevier Masson SAS
Seiten: - Band / Heft: 55 Artikelnummer: - Start- / Endseite: 93 - 97 Identifikator: ISSN: 1293-2558
CoNE: https://pure.mpg.de/cone/journals/resource/954926245540