Na3MgB37Si9: an icosahedral B12cluster framework containing {Si8} units

Haruhiko Morito; Takuji Ikeda; Yukari Katsura; Hisanori Yamane

doi:10.1107/S2056989022000494

Na₃MgB₃7Si₉: an icosahedral B₁₂cluster framework containing {Si₈} units

Haruhiko Morito, Takuji Ikeda, Yukari Katsura, Hisanori Yamane

Research output: Contribution to journal › Article › peer-review

Abstract

Single crystals of a novel sodium-magnesium boride silicide, Na3MgB37Si9 [a = 10.1630(3)A, c = 16.5742(6)A, space group R m (No. 166)], were synthesized by heating a mixture of Na, Si and crystalline B with B2O3 flux in Mg vapor at 1373K. The Mg atoms in the title compound are located at an interstitial site of the Dy2.1B37Si9-type structure with an occupancy of 0.5. The (001) layers of B12 icosahedra stack along the c-axis direction with shifting in the [-a/3, b/3, c/3] direction. A three-dimensional framework structure of the layers is formed via B - Si bonds and {Si8} units of [Si]3 - Si - Si - [Si]3.

Original language	English
Pages (from-to)	203-206
Number of pages	4
Journal	Acta Crystallographica Section E: Crystallographic Communications
Volume	78
DOIs	https://doi.org/10.1107/S2056989022000494
Publication status	Published - 2022 Jan 1

Keywords

BOflux
X-ray diffraction
boron-rich boride
crystal structure
crystal structure
silicon
single-crystal
sodium

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1107/S2056989022000494

Cite this

@article{df5bce68fb824d15ac098da44b714f19,

title = "Na3MgB37Si9: an icosahedral B12cluster framework containing {Si8} units",

abstract = "Single crystals of a novel sodium-magnesium boride silicide, Na3MgB37Si9 [a = 10.1630(3)A, c = 16.5742(6)A, space group R m (No. 166)], were synthesized by heating a mixture of Na, Si and crystalline B with B2O3 flux in Mg vapor at 1373K. The Mg atoms in the title compound are located at an interstitial site of the Dy2.1B37Si9-type structure with an occupancy of 0.5. The (001) layers of B12 icosahedra stack along the c-axis direction with shifting in the [-a/3, b/3, c/3] direction. A three-dimensional framework structure of the layers is formed via B - Si bonds and {Si8} units of [Si]3 - Si - Si - [Si]3.",

keywords = "BOflux, X-ray diffraction, boron-rich boride, crystal structure, crystal structure, silicon, single-crystal, sodium",

author = "Haruhiko Morito and Takuji Ikeda and Yukari Katsura and Hisanori Yamane",

note = "Funding Information: Funding for this research was provided by: the Japan Science and Technology Agency (JST) CREST (grant No. JPMJCR19J1). Publisher Copyright: {\textcopyright} 2022.",

year = "2022",

month = jan,

day = "1",

doi = "10.1107/S2056989022000494",

language = "English",

volume = "78",

pages = "203--206",

journal = "Acta Crystallographica Section E: Crystallographic Communications",

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publisher = "International Union of Crystallography",

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TY - JOUR

T1 - Na3MgB37Si9

T2 - an icosahedral B12cluster framework containing {Si8} units

AU - Morito, Haruhiko

AU - Ikeda, Takuji

AU - Katsura, Yukari

AU - Yamane, Hisanori

PY - 2022/1/1

Y1 - 2022/1/1

N2 - Single crystals of a novel sodium-magnesium boride silicide, Na3MgB37Si9 [a = 10.1630(3)A, c = 16.5742(6)A, space group R m (No. 166)], were synthesized by heating a mixture of Na, Si and crystalline B with B2O3 flux in Mg vapor at 1373K. The Mg atoms in the title compound are located at an interstitial site of the Dy2.1B37Si9-type structure with an occupancy of 0.5. The (001) layers of B12 icosahedra stack along the c-axis direction with shifting in the [-a/3, b/3, c/3] direction. A three-dimensional framework structure of the layers is formed via B - Si bonds and {Si8} units of [Si]3 - Si - Si - [Si]3.

AB - Single crystals of a novel sodium-magnesium boride silicide, Na3MgB37Si9 [a = 10.1630(3)A, c = 16.5742(6)A, space group R m (No. 166)], were synthesized by heating a mixture of Na, Si and crystalline B with B2O3 flux in Mg vapor at 1373K. The Mg atoms in the title compound are located at an interstitial site of the Dy2.1B37Si9-type structure with an occupancy of 0.5. The (001) layers of B12 icosahedra stack along the c-axis direction with shifting in the [-a/3, b/3, c/3] direction. A three-dimensional framework structure of the layers is formed via B - Si bonds and {Si8} units of [Si]3 - Si - Si - [Si]3.

KW - BOflux

KW - X-ray diffraction

KW - boron-rich boride

KW - crystal structure

KW - silicon

KW - single-crystal

KW - sodium

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