Na 5 InTe 4 und Na 5 In 2 Te 6 — Erste Beispiele für Neso-sowie Ditelluro-verbrückte Inotelluroindate/Na 5 InTe 4 and Na 5 In 2 Te 6 — First Examples of Neso-and Ditelluro-Bridged Inotelluroindates
1990; De Gruyter; Volume: 45; Issue: 1 Linguagem: Inglês
10.1515/znb-1990-0104
ISSN1865-7117
AutoresΒ. Eisenmann, Achim Hofmann, Roland Zagler,
Tópico(s)High-pressure geophysics and materials
ResumoAbstract Single crystals of the ternary com pounds Na 5 InTe 4 and Na 5 In 2 Te 6 have been grown from the melt und have been investigated by X-ray single crystal techniques. Na 5 InTe 4 : orthorhombic, space group Pbcn; Z = 8; a = 742.7(4) pm, b = 2015.4(8) pm, c = 1773.3(6) pm; Na 5 In:Te 6 : orthorhombic, space group Cmc2 1 ; Z = 8; a = 902.1(4) pm, b = 1536.1(5) pm , c = 2356.5(6) pm. The crystal structure of Na 5 InTe 4 contains isolated InTe 4 tetrahedra (mean bond length: 278.8 pm). In the crystal structure of Na 5 In 2 Te 6 InTe 4 tetrahedra are connected through common vertices to "Zweiereinfach"-chains. Two neighbouring chains each are joined further to ribbons through Te -Te bridges between every second InTe 4 tetrahedron.
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