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1997 (1)
1Author    Peter Höhn, Matthias Ludwig, Rüdiger KniepRequires cookie*
 Title    Die Kristallstrukturen der isotypen Erdalkalimetall-Nitridowolfra- mat(VI)-Nitrid-Oxide Ca51[WN4]12N803 und Sr51[WN4]12N803 The Crystal Structures of the Isotypic Alkaline Earth-Nitridotungstate(VI)- Nitride-Oxides Ca5, [W N 4] 12N 80 3 and Sr5! [W N 4] l2N 80 3  
 Abstract    Yellow single crystals of the isotypic phases Ca51 [WN4] 12N80 3 and Sr5|[WN4] i2N80 3 (tri­ clinic, P I (#2); a= 1056.4(3) / 1 1 13.1(5) pm, b = 1239.7(3) / 1304.4(5) pm, c= 1598.2(3) / 1679.4(9) pm, q = 102.78(1)/102.47(2)°, = 95.15(1)/95.43(3)°, 7 = 109.89(1)/109.77(2)°; Z = 1) were grown in a Tl-flux (Ca:Tl, molar ratio 5:1, W-crucible; Tmax = 1273K; reaction with Ni, 1 atm, 36 h) or from pellets (Sr2N + W, molar ratio 6:1; Tmax = 1023K; reaction with N2, 1 atm, 36 h). The crystal structures contain tetrahedral anions [WN4]6" in addition to isolated nitride and isolated oxide ions, which are octahedrally coordinated by Ca and Sr, respectively. 
  Reference    Z. Naturforsch. 52b, 1349—1358 (1997); eingegangen am 9. Juli 1997 
  Published    1997 
  Keywords    Nitridotungstate(VI), Nitride-Oxide, Preparation, Crystal Structure 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-1349.pdf 
 Identifier    ZNB-1997-52b-1349 
 Volume    52