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1998 (1)
1Author    Karl-Friedrich Tebbe, Theo Gilles, Bernhard RadkeRequires cookie*
 Title    Untersuchungen an Polyhalogeniden  
 Abstract    , XXXIII [1] Polyiodide des Nickelhexamminkomplexes: Nickelhexamminbistriiodid [Ni(NH3)6](I3) 2 und Nickelhexamminbispentaiodid [Ni(NH3)6 ] (I5)2 Studies of Polyhalides, 33 [11 Polyiodides of the Nickel Hexammine Complex: Nickelhexammine Bistriiodide [Ni(NH3)6](I3)2 and Nickelhexammine Bispentaiodide [Ni(NH3)6l(I5) The compounds [Ni(NH3)6 ](I3) 2 and [Ni(NH3)6 ](I5) 2 have been prepared by the reaction of stoichiometric amounts of [Ni(NH3)6 ]Cl2, KI, and I2 in water. The already known triiodide crystallizes in the monoclinic space group C2/c with a = 1541,0(10), b = 1521.6(8), c = 876.1 (7) pm, ß = 101.44(6)° and Z = 4. The new pentaiodide crystallizes in the monoclinic space group P2,/n with a = 899.6(4), b = 1681.6(5), c = 946.8(7) pm, ß = 110.90(5)° and Z = 2. Both compounds contain nearly octahedral cations [Ni(NH3)6]2+ and simultaneously a linear and a bent triiodide ion I3_ with nearly equal bond lengths or a unsymmetrical V-shaped pentaiodide ion I5_ which is lined up to a new type of pentaiodide chain. 
  Reference    (Z. Naturforsch. 53b, 87—92 [1998]; eingegangen am 25. September 1997) 
  Published    1998 
  Keywords    Polyiodide, Triiodide, Pentaiodide, Nickel Hexammine Complex, Crystal Structure 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0087.pdf 
 Identifier    ZNB-1998-53b-0087 
 Volume    53