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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Li5ReN4, a lithium nitridorhenate(VII) with anti fluorite superstructure [German]
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Li5ReN4, a lithium nitridorhenate(VII) with anti fluorite superstructure [German]

机译:Li5ReN4,具有抗萤石超结构的亚硝酸锂(VII)[德国]

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摘要

At 673 K Li3N reacts with Re powder under N-2 to pale yellow, microcrystalline Li5ReN4. The structure determination is based on X-ray powder data: Spacegroup Pmmn (No. 59), Z = 2, a = 6.719(1) Angstrom, b = 6.627(1) Angstrom, c = 4.893(1) Angstrom. The compound crystallizes in an anti-type of a fluorite superstructure. In comparison to the aristo-type - CaF2 - in Li5ReN4 tetrahedral interstices of a ccp nitrogen partial structure are unoccupied. The distribution of these vacancies is related with its orthorhombic distortion. Under aspects of crystal chemistry the tetragonally crystallizing compounds Li6MN4 With M = MO, W result by partially filling up such vacancies. [References: 19]
机译:在673 K,Li3N与Re粉末在N-2下反应生成浅黄色微晶Li5ReN4。结构确定基于X射线粉末数据:空间群Pmmn(编号59),Z = 2,a = 6.719(1)埃,b = 6.627(1)埃,c = 4.893(1)埃。该化合物以萤石超结构的反型结晶。与Li5ReN4中的aristo型-CaF2-相比,没有占据ccp氮部分结构的四面体间隙。这些空位的分布与其正交畸变有关。在晶体化学方面,具有M = MO,W的四方结晶化合物Li 6 MN 4通过部分填充这种空位而产生。 [参考:19]

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