Ba4Mg[Si2N6], Ba3Ca 2[Si2N6] and Ba1.6Sr 3.4[Si2N6]-Quaternary barium alkaline-earth silicon nitrides containing isolated nitridosilicate anions of [Si 2N6]10-

Hisanori Yamane; Haruhiko Morito

doi:10.1016/j.jallcom.2012.12.039

Ba₄Mg[Si₂N₆], Ba₃Ca ₂[Si₂N₆] and Ba_1.6Sr _3.4[Si₂N₆]-Quaternary barium alkaline-earth silicon nitrides containing isolated nitridosilicate anions of [Si ₂N₆]^10-

Hisanori Yamane, Haruhiko Morito

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

17 Citations (Scopus)

Abstract

Ba₄Mg[Si₂N₆], Ba₃Ca ₂[Si₂N₆], and Ba_1.6Sr _3.4[Si₂N₆] were synthesized by heating Ba, AE (=Mg, Ca, and Sr), Si, NaN₃ and Na at 900 °C. The crystal structures of these compounds consist of alkaline-earth metal cations and edge-sharing SiN₄ tetrahedra of isolated nitridosilicate anions [Si₂N₆]^10-. Ba₄Mg[Si ₂N₆] crystallizes in a new orthorhombic structure type, space group F d d d (No. 70-2), a = 7.9095(3) Å, b = 11.2972(5) Å, c = 20.4009(12) Å, and Z = 8. Mg²⁺ cations are planar-rectangularly coordinated by four nitrogen atoms. The monoclinic crystal structures (C2/c (No. 15), Z = 4) of Ba₃Ca₂[Si ₂N₆] (a = 10.0962(4) Å, b = 6.7868(3) Å, c = 13.3249(5) Å, β = 101.7070(13)°) and Ba_1.6Sr _3.4[Si₂N₆] (a = 10.2406(5) Å, b = 6.6715(3) Å, c = 13.5166(8) Å, β = 100.274(2)°) are isotypic with Ca₅[Si₂N₆].

Original language	English
Pages (from-to)	320-324
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	555
DOIs	https://doi.org/10.1016/j.jallcom.2012.12.039
Publication status	Published - 2013 Apr 5

Keywords

Crystal structure
Na flux
Nitride materials
Nitridosilicates
Single crystal
X-ray diffraction

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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@article{e64f28de0b7d40c1891a6d9ffe319d3d,

title = "Ba4Mg[Si2N6], Ba3Ca 2[Si2N6] and Ba1.6Sr 3.4[Si2N6]-Quaternary barium alkaline-earth silicon nitrides containing isolated nitridosilicate anions of [Si 2N6]10-",

abstract = "Ba4Mg[Si2N6], Ba3Ca 2[Si2N6], and Ba1.6Sr 3.4[Si2N6] were synthesized by heating Ba, AE (=Mg, Ca, and Sr), Si, NaN3 and Na at 900 °C. The crystal structures of these compounds consist of alkaline-earth metal cations and edge-sharing SiN4 tetrahedra of isolated nitridosilicate anions [Si2N6]10-. Ba4Mg[Si 2N6] crystallizes in a new orthorhombic structure type, space group F d d d (No. 70-2), a = 7.9095(3) {\AA}, b = 11.2972(5) {\AA}, c = 20.4009(12) {\AA}, and Z = 8. Mg2+ cations are planar-rectangularly coordinated by four nitrogen atoms. The monoclinic crystal structures (C2/c (No. 15), Z = 4) of Ba3Ca2[Si 2N6] (a = 10.0962(4) {\AA}, b = 6.7868(3) {\AA}, c = 13.3249(5) {\AA}, β = 101.7070(13)°) and Ba1.6Sr 3.4[Si2N6] (a = 10.2406(5) {\AA}, b = 6.6715(3) {\AA}, c = 13.5166(8) {\AA}, β = 100.274(2)°) are isotypic with Ca5[Si2N6].",

keywords = "Crystal structure, Na flux, Nitride materials, Nitridosilicates, Single crystal, X-ray diffraction",

author = "Hisanori Yamane and Haruhiko Morito",

year = "2013",

month = apr,

day = "5",

doi = "10.1016/j.jallcom.2012.12.039",

language = "English",

volume = "555",

pages = "320--324",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Ba4Mg[Si2N6], Ba3Ca 2[Si2N6] and Ba1.6Sr 3.4[Si2N6]-Quaternary barium alkaline-earth silicon nitrides containing isolated nitridosilicate anions of [Si 2N6]10-

AU - Yamane, Hisanori

AU - Morito, Haruhiko

PY - 2013/4/5

Y1 - 2013/4/5

N2 - Ba4Mg[Si2N6], Ba3Ca 2[Si2N6], and Ba1.6Sr 3.4[Si2N6] were synthesized by heating Ba, AE (=Mg, Ca, and Sr), Si, NaN3 and Na at 900 °C. The crystal structures of these compounds consist of alkaline-earth metal cations and edge-sharing SiN4 tetrahedra of isolated nitridosilicate anions [Si2N6]10-. Ba4Mg[Si 2N6] crystallizes in a new orthorhombic structure type, space group F d d d (No. 70-2), a = 7.9095(3) Å, b = 11.2972(5) Å, c = 20.4009(12) Å, and Z = 8. Mg2+ cations are planar-rectangularly coordinated by four nitrogen atoms. The monoclinic crystal structures (C2/c (No. 15), Z = 4) of Ba3Ca2[Si 2N6] (a = 10.0962(4) Å, b = 6.7868(3) Å, c = 13.3249(5) Å, β = 101.7070(13)°) and Ba1.6Sr 3.4[Si2N6] (a = 10.2406(5) Å, b = 6.6715(3) Å, c = 13.5166(8) Å, β = 100.274(2)°) are isotypic with Ca5[Si2N6].

AB - Ba4Mg[Si2N6], Ba3Ca 2[Si2N6], and Ba1.6Sr 3.4[Si2N6] were synthesized by heating Ba, AE (=Mg, Ca, and Sr), Si, NaN3 and Na at 900 °C. The crystal structures of these compounds consist of alkaline-earth metal cations and edge-sharing SiN4 tetrahedra of isolated nitridosilicate anions [Si2N6]10-. Ba4Mg[Si 2N6] crystallizes in a new orthorhombic structure type, space group F d d d (No. 70-2), a = 7.9095(3) Å, b = 11.2972(5) Å, c = 20.4009(12) Å, and Z = 8. Mg2+ cations are planar-rectangularly coordinated by four nitrogen atoms. The monoclinic crystal structures (C2/c (No. 15), Z = 4) of Ba3Ca2[Si 2N6] (a = 10.0962(4) Å, b = 6.7868(3) Å, c = 13.3249(5) Å, β = 101.7070(13)°) and Ba1.6Sr 3.4[Si2N6] (a = 10.2406(5) Å, b = 6.6715(3) Å, c = 13.5166(8) Å, β = 100.274(2)°) are isotypic with Ca5[Si2N6].

KW - Crystal structure

KW - Na flux

KW - Nitride materials

KW - Nitridosilicates

KW - Single crystal

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=84873903503&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84873903503&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2012.12.039

DO - 10.1016/j.jallcom.2012.12.039

M3 - Article

AN - SCOPUS:84873903503

VL - 555

SP - 320

EP - 324

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

ER -