| | 2 | Author
| Wolfgang Blase, Gerhard Cordier | Requires cookie* | | | Title
|  | | | | Abstract
| NaGaSn, (trigonal; P3,12 (No. 151); a = 632.8(4), c = 617.0(3) pm, Z -1; d v = 5.33 g/cm 3) was grown from the melt. The crystal structure contains Ga and Sn atoms in a helical arrangement (six atoms per turn) along the c-axis direction. Interatomic bonding between neighbouring helices completes a distorted [2+2]-tetrahedral environment for every Ga/Sn position. The compound is classified in terms of the Zintl concept. | | | |
Reference
| Z. Naturforsch. 43b, 1017—1019 (1988); eingegangen am 28. März 1988 | | | |
Published
| 1988 | | | |
Keywords
| Gallides, Stannides, Crystal Structure, Zintl-Phases | | | |
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| default:Reihe_B/43/ZNB-1988-43b-1017.pdf | | | | Identifier
| ZNB-1988-43b-1017 | | | | Volume
| 43 | |
| 3 | Author
| Gerhard Cordier, Michael Steher | Requires cookie* | | | Title
| | | | | Abstract
| The compound Sr 5 Al 2 Sb 6 crystallizes in the orthorhombic system (space group Pnma (No. 62)) with the lattice constants: a = 1212.4(4) pm, b = 1034.1(4) pm, c = 1340.9(5) pm. AlSb 4 tetrahedra are connected via common edges and corners to chains. Every second terminal Sb atom of the chain is connected to another Sb atom, such that end-on Sb 2 groups and terminal Sb alternate. The compound Ba 5 In 2 Sb 6 crystallizes in the orthorhombic system (space group Pbam (No. 55)). The lattice constants are: a = 1530.7(6) pm, b = 1335.8(5) pm, c = 478.6(2) pm. In the structure, InSb 4 tetrahedra are connected via common corners and Sb 2 groups to form double chains. Both compounds are classified as Zintl phases. | | | |
Reference
| Z. Naturforsch. 43b, 463—466 (1988); eingegangen am 10. Dezember 1987 | | | |
Published
| 1988 | | | |
Keywords
| Strontium Antimonido Aluminates, Barium Antimonido Indates, Crystal Structure, Zintl Phase | | | |
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| default:Reihe_B/43/ZNB-1988-43b-0463.pdf | | | | Identifier
| ZNB-1988-43b-0463 | | | | Volume
| 43 | |
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