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'Tetra butylammonium Dicyanoaurate I' in keywords
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1990 (1)
1Author    R. J. Schubert, K.-J RangeRequires cookie*
 Title    T etra-w-butylammoniumdicyanoaurat(I), (/j-C4H9)4N Au(CN)2 Tetra-/7-butylammonium Dicyanoaurate(I), (az-C4H9)4N A u(C N)2  
 Abstract    Single crystals o f (/j-C4H9)4N A u (C N) 2 were obtained by crystallization using the tempera­ ture decreasing method in a newly developed com puter-controlled apparatus. The colourless crystals aor e monoclinic, space group A 2/n, with a = 20.216(2) Ä, b = 13.130(1) A, c = 9.328(1) A, and ß = 109.69(1)°. The measured density is 1.45 g/cm 3, which agrees with the cal­ culated density o f 1.40 g/cm 3 for Z = 4. The structure was solved by Direct M ethods using 674 independent reflections and refined by least-squares procedures to conventional and weighted R factors o f 0.068 and 0.058, respectively. The nearly linear [A u(C N)2]~-anions form pseudo-hexagonal layers, in which they are arranged parallel to each other. The shortest A u -A u dis­ tance is 8.05 A. The stacking o f the layers produces pseudo-trigonal channels, occupied by the cations. The tetra-«-butylammonium cation has four ordered trans chains with idealized D 2d symmetry (42 m). 
  Reference    Z. Naturforsch. 45b, 1118—1122 (1990); eingegangen am 12. Februar 1990 
  Published    1990 
  Keywords    Tetra-«-butylammonium Dicyanoaurate(I), Crystal Growth, Crystal Structure 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1118.pdf 
 Identifier    ZNB-1990-45b-1118 
 Volume    45