1972
DOI: 10.1002/chin.197236024
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ChemInform Abstract: PHASENDIAGRAMM DES SYST. LA2SE3‐CU2SE

Abstract: Aus der DTA und Röntgenbeugungsuntersuchungen wird das Phasendiagramm La2Se3‐Cu2Se konstruiert.

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Cited by 23 publications
(47 citation statements)
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“…Only the lattice parameters were determined for the RCuS 2 (R = Y, Dy, Ho, Er, Tm, Yb, Lu) compounds in Ref. [1]. The crystal structure of the YCuS 2 compound has been reinvestigated in Refs.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Only the lattice parameters were determined for the RCuS 2 (R = Y, Dy, Ho, Er, Tm, Yb, Lu) compounds in Ref. [1]. The crystal structure of the YCuS 2 compound has been reinvestigated in Refs.…”
Section: Introductionmentioning
confidence: 99%
“…[1]. The crystal structures of the RCuS 2 (R = La, Ce, Pr, Nd, Sm, Gd, Tb) compounds (LaCuS 2 structure type, space group P2 1 /c) and the RCuS 2 (R = Y, Dy, Ho, Er, Tm, Yb, Lu) compounds (ErAgSe 2 structure type, space group P2 1 2 1 2 1 ) have also been described in [1].…”
Section: Introductionmentioning
confidence: 99%
“…In group one phases, there are no Q-Q (Q = S, Se, Te) interactions. These compounds have been generally synthesized at relatively high temperatures as thermodynamically stable products, which include LnCuQ 2 (Ln = rare-earth; Q = S, Se, Te), [1][2][3][4][5][6][7][8][9][10][11] slightly tilting the furnaces. Powder X-ray diffraction measurements were used to confirm phase purity by comparing the powder patterns calculated from the single-crystal X-ray structures with the experimental data.…”
Section: Introductionmentioning
confidence: 99%
“…Für die Zusammensetzung CuMS 2 (ϵ Cu 2 S · M 2 S 3 : M ϭ Sc, Y, La; Ce Ϫ Lu [2Ϫ5]) sind bislang drei Strukturtypen bekannt: CuLaS 2 (AϪTyp; monoklin, P2 1 /c) [6], CuYS 2 (BϪTyp; orthorhombisch, Pnma) [7] und CuScS 2 (CϪTyp; trigonal, P3m1) [8]). Auch über trigonale Verbindungen des Formeltyps Cu 2Ϫx M (2ϩx)/3 S 2 (M ϭ Y; Tb Ϫ Lu) [4,9] mit zum Teil erheblichen Phasenbreiten (0 Յ x Յ 0,667; Grenzzusammensetzungen: 3 Cu 2 S · M 2 S 3 (ϵ Cu 2,000 M 0,667 S 2 ) [10] und 3 / 2 Cu 2 S · M 2 S 3 (ϵ Cu 1,333 M 0,889 S 2 ) [11]) wurde berichtet, unter denen sogar lückenlose Mischkristallreihen ausgebildet werden sollen.…”
unclassified
“…Mit Lanthan und den leichten Lanthanoiden (M ϭ La; Ce Ϫ Nd, Sm, Gd Ϫ Dy) fanden zwar schon im Jahre 1972 Phasen der Zusammensetzung Cu 2 S · 5 M 2 S 3 (ϵ CuM 5 S 8 ) [4] Erwähnung, analytische Beweise für deren Existenz stehen jedoch nach wie vor aus. Mit Versuchen zur Darstellung von Cu 2 S-armen ternären Kupfer(I)-Praseodym(III)-Sulfiden im System Cu 2 S/Pr 2 S 3 zwischen den Grenzzusammensetzungen Cu 2 S · Pr 2 S 3 (ϵ CuPrS 2 ) und Cu 2 S · 5 Pr 2 S 3 (ϵ CuPr 5 S 8 ) sollte diesem Mißstand nun abgeholfen werden.…”
unclassified