LaS1.9, CeS1.9, PrS1.9, NdS1.9 und GdS1.9: Fünf neue Lanthanoidpolysulfide – Synthese und Kristallstrukturen und ihre Strukturbeziehung zum ZrSSi‐Typ
LaS1.9, CeS1.9, PrS1.9, NdS1.9 und GdS1.9: Fünf neue Lanthanoidpolysulfide – Synthese und Kristallstrukturen und ihre Strukturbeziehung zum ZrSSi‐Typ
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LaS1.9、CeS1.9、PrS1.9、NdS1.9 和 GdS1.9：镧系元素多硫化物 – 合成和 Kristallstrukturen 和 ihre Strukturbeziehung zum ZrSSi-Typ
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
T. Schleid
中科院分区：
文献类型：
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作者：
T. Doert;C. Graf;Petra Lauxmann;T. Schleid
LaS1.9、CeS1.9、PrS1.9、NdS1.9和GdS1.9：五种新型镧系多硫化物的合成、晶体结构及其与ZrSSi型的结构关系
LaS1.9, CeS1.9, PrS1.9, NdS1.9, and GdS1.9: Five new Lanthanide Polysulfides – Syntheses, Crystal Structures and their Structural Relationship to the ZrSSi Type
Crystals of the five new lanthanide polysulfides LaS1.9, CeS1.9, PrS1.9, NdS1.9, and GdS1.9 have been prepared by different synthetic routes. According to X-ray structure analyses, the compounds adopt the tetragonal CeSe1.9 type structure (space group: P42/n, no. 86) with the lattice parameters a = 9.111(1) A, c = 16.336(2) A (LaS1.9), a = 9.015(3) A, c = 16.168(4) A (CeS1.9), a = 8.947(3) A, c = 16.054(4) A (PrS1.9), a = 8.901(3) A, c = 16.022(4) A (NdS1.9), and a = 8.714(1) A, c = 15.791(1) A (GdS1.9), respectively. The crystal structure consists of puckered [LnS] double slabs and planar sulfur layers alternating along [001]. Each planar sulfur layer contains disulfide dumbbells, isolated anions and ordered vacancies.