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'Arsenides' in keywords Facet   Publication Year 1992  [X]
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1992[X]
1Author    Viktor Keimes, Albrecht MewisRequires cookie*
 Title    Strukturvarianten des MgCu2 -Typs: Die Verbindungen Mg2 Ni3P und Mg2 Ni3As  
 Abstract    Variants of the M gC u2 Type: The C om pounds M g2N i3P and M g2N i3As The com pounds M g2N i3P and M g2N i3A s were prepared by heating the elements. Their structures have been determined from single-crystal X-ray data. The structure o f the phosphide is a rhombohedral ternary variant o f the cubic Laves structure type M gCu2 (R 3m ; hexagonal lattice constants: a = 4.971(0)Ä , c = 10.961 (2) Ä). The ordered substitution o f one quarter o f the metal atom s by phosphorus and the resulting shorter distances are responsible for the rhombohedral symmetry. The arsenide crystallizes in the M gC u2 type structure (F d3m ; a = 6.891(1)A , com position M g2N i3A s) with a statistic distribution o f the N i and As atoms; the relevant hom ogeneity range extends from M g2N i2 9A s , , to M g2N i3 5A s0 5. 
  Reference    Z. Naturforsch. 47b, 1351—1354 (1992); eingegangen am 23. März 1992 
  Published    1992 
  Keywords    M agnesium, N ickel, Phosphide, Arsenide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/47/ZNB-1992-47b-1351.pdf 
 Identifier    ZNB-1992-47b-1351 
 Volume    47