Li5ReN4, a lithium nitridorhenate(VII) with anti fluorite superstructure

被引：0
|
作者：
Chaushli, A
Jacobs, H [1 ]
Weisser, U
Strähle, J
机构：
[1] Univ Dortmund, Lehrstuhl Anorgan Chem 1, Fachbereich Chem, D-44221 Dortmund, Germany
[2] Univ Tubingen, Inst Anorgan Chem, D-7400 Tubingen, Germany
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2000年 / 626卷 / 09期
关键词：
rhenium; Lithium nitrido rhenate(VII); ternary rhenium(VII) nitride;
D O I：
10.1002/1521-3749(200009)626:9<1909::AID-ZAAC1909>3.0.CO;2-T
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
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.
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页码：1909 / 1914
页数：6
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