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'Pseudotrihalide' in keywords Facet   Publication Year 1989  [X]
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1989[X]
1Author    Karl-Friedrich Tebbe, N. Orbert KraußRequires cookie*
 Title    Untersuchungen an Polypseudohalogeniden, VI [1] Darstellung und Kristallstruktur des Natriumdicyanoiodat(I)-dihydrats, Na[I(CN)2] * 2 H20 Studies on the Polypseudohalides, VI [1] Preparation and Crystal Structure of N a[I(CN )2] -2 H 20  
 Abstract    The new com pound N a[I(C N)2] • 2 H 20 can be prepared by addition o f iodine to a concentrated aqueous solution of sodium cyanide. It crystallizes in the monoclinic space group P 2,/c with a — 1044.0(2), b — 480.2(2), c = 730.2(2) pm , ß — 95.94(2)° and Z = 2. The crystal structure has been refined to Rf = 0.027 for 692 reflections. The structure may be described as a layer-like package o f cations N a+, water m olecules and trihalide-analogous anions [I(C N)2]~. The anion is strictly linear at the I atom and nearly linear at the C atom s with cp(l—C —N) = 176.2° and d(I —C) = 231.1, d (C —N) = 110.6 pm. The cation is surrounded by a slightly distorted octahedron o f nitrogen and oxygen atoms with d(N a--N) = 263.8, d(N a--O) = 242.0, 242.8 pm. 
  Reference    Z. Naturforsch. 44b, 637 (1989); eingegangen am 27. Januar 1989 
  Published    1989 
  Keywords    Sodium dicyanoiodate, C yanogen Com pound, Polypseudohalide, Pseudotrihalide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/44/ZNB-1989-44b-0637.pdf 
 Identifier    ZNB-1989-44b-0637 
 Volume    44