Synthesis and structure of the subnitrides Ba2GeGaN and (BaxSr1-x)(3)Ge2N2; x approximate to 0.7
We report the structure of the new subnitride Ba2GeGaN synthesized as crystals from the elements in a sealed Nb tube at 760 °C using a Na/Ba melt as the growth medium. Shiny black prisms of Ba2GeGaN crystallize in P21/m (No.11) with a=7.249(1) Å, b=4.210(1) Å, c=9.314(1) Å, β=108.87(1)° and Z=2. It...
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| Médium: | Journal article |
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1997
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| _version_ | 1826304576549027840 |
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| author | Clarke, S DiSalvo, F |
| author_facet | Clarke, S DiSalvo, F |
| author_sort | Clarke, S |
| collection | OXFORD |
| description | We report the structure of the new subnitride Ba2GeGaN synthesized as crystals from the elements in a sealed Nb tube at 760 °C using a Na/Ba melt as the growth medium. Shiny black prisms of Ba2GeGaN crystallize in P21/m (No.11) with a=7.249(1) Å, b=4.210(1) Å, c=9.314(1) Å, β=108.87(1)° and Z=2. It contains infinite zigzag chains, 1 ∞[GeGaN4-], composed of alternating Ge2- and GaN2- units joined by Ge-Ga bonds. The structure is related to that of BaGe with alternate Ge atoms replaced by the isoelectronic GaN2- fragment. Such GaN2- fragments occur in CaGaN. We also report the occurrence of a solid solution between the previously reported subnitrides Ba3Ge2N2 and Sr3Ge2N2 which contain infinite chains, 1 ∞[Ge2-], and GeN4- 2 units. We have characterized one member of this solid solution with composition (Ba0.79(1)Sr0.21(1))3Ge2N 2 and crystallizing in P21/m (No. 11) with a=9.5109(9) Å, 6=4.0201(3) Å, c=10.0412(9) Å, β=113.06(1)° and Z=2. © 1997 Elsevier Science S.A. |
| first_indexed | 2024-03-07T06:19:56Z |
| format | Journal article |
| id | oxford-uuid:f26183df-fd10-41f9-955c-97448a6cfdd3 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T06:19:56Z |
| publishDate | 1997 |
| record_format | dspace |
| spelling | oxford-uuid:f26183df-fd10-41f9-955c-97448a6cfdd32022-03-27T12:03:17ZSynthesis and structure of the subnitrides Ba2GeGaN and (BaxSr1-x)(3)Ge2N2; x approximate to 0.7Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f26183df-fd10-41f9-955c-97448a6cfdd3Symplectic Elements at Oxford1997Clarke, SDiSalvo, FWe report the structure of the new subnitride Ba2GeGaN synthesized as crystals from the elements in a sealed Nb tube at 760 °C using a Na/Ba melt as the growth medium. Shiny black prisms of Ba2GeGaN crystallize in P21/m (No.11) with a=7.249(1) Å, b=4.210(1) Å, c=9.314(1) Å, β=108.87(1)° and Z=2. It contains infinite zigzag chains, 1 ∞[GeGaN4-], composed of alternating Ge2- and GaN2- units joined by Ge-Ga bonds. The structure is related to that of BaGe with alternate Ge atoms replaced by the isoelectronic GaN2- fragment. Such GaN2- fragments occur in CaGaN. We also report the occurrence of a solid solution between the previously reported subnitrides Ba3Ge2N2 and Sr3Ge2N2 which contain infinite chains, 1 ∞[Ge2-], and GeN4- 2 units. We have characterized one member of this solid solution with composition (Ba0.79(1)Sr0.21(1))3Ge2N 2 and crystallizing in P21/m (No. 11) with a=9.5109(9) Å, 6=4.0201(3) Å, c=10.0412(9) Å, β=113.06(1)° and Z=2. © 1997 Elsevier Science S.A. |
| spellingShingle | Clarke, S DiSalvo, F Synthesis and structure of the subnitrides Ba2GeGaN and (BaxSr1-x)(3)Ge2N2; x approximate to 0.7 |
| title | Synthesis and structure of the subnitrides Ba2GeGaN and (BaxSr1-x)(3)Ge2N2; x approximate to 0.7 |
| title_full | Synthesis and structure of the subnitrides Ba2GeGaN and (BaxSr1-x)(3)Ge2N2; x approximate to 0.7 |
| title_fullStr | Synthesis and structure of the subnitrides Ba2GeGaN and (BaxSr1-x)(3)Ge2N2; x approximate to 0.7 |
| title_full_unstemmed | Synthesis and structure of the subnitrides Ba2GeGaN and (BaxSr1-x)(3)Ge2N2; x approximate to 0.7 |
| title_short | Synthesis and structure of the subnitrides Ba2GeGaN and (BaxSr1-x)(3)Ge2N2; x approximate to 0.7 |
| title_sort | synthesis and structure of the subnitrides ba2gegan and baxsr1 x 3 ge2n2 x approximate to 0 7 |
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