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Zur Strukturchemie ternärer Telluride der Alkali- und Erdalkalimetalle mit den Elementen der 3. Hauptgruppe / On the Structural Chemistry of Ternary Tellurides of Alkali- and Earthalkalimetalls with the Group- (III) -Elements

1972; De Gruyter; Volume: 27; Issue: 11 Linguagem: Inglês

10.1515/znb-1972-1105

1865-7117

Erich Franke, Herbert Schäfer,

Solid-state spectroscopy and crystallography

The new compounds SrAl 2 Te 4 , SrGa 2 Te 4 , SrIn 2 Te 4 , BaAl 2 Te 4 , BaGa 2 Te 4 , BaIn 2 Te 4 , Ba 7 Al 6 Te 16 , NaInTe 2 and KInTe 2 have been prepared by melting together stoichiometric amounts of the elements. All compounds crystallize tetragonal in variants of the TlSe- (B 13) -structure. SrAl 2 Te 4 : α = 8.25 Å, c = 6.72 Å ( ± 0.02 Å) SrGa 2 Te 4 : α = 8.21 Å, c = 6.75 Å ( ± 0.02 Å) SrIn 2 Te 4 : α = 8.27 Å, c = 7.22 Å ( ± 0.02 Å) BaAl 2 Te 4 : α = 8.50 Å, c = 6.72 Å ( ± 0.02 Å) BaGa 2 Te 4 : α = 8.42 Å, c = 6.78 Å ( ± 0.02 Å) BaIn 2 Te 4 : α = 8.44 Å, c = 7.20 Å ( ± 0.02 Å) NaInTe 2 : α = 8.33 Å, c = 7.27 Å ( ± 0.02 A) KInTe 2 : α = 8.52 Å, c = 7.39 Å ( ± 0.02 A) Ba 7 Al 6 Te 16 : α = 34.24 Å, c = 6.70 Å ( ± 0.02 Å) (=4 × 8.57 Å),