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1999 (1)
1Author    Christoph Mockenhaupt, Ralf Eßmanna, HeinzDieter LutzRequires cookie*
 Title    [Ni(NH3 )6]S0 4 : Kristallstruktur und Infrarotspektren [Ni(NH3)6]S 0 4: Crystal Structure and Infrared Spectra  
 Abstract    The crystal structure of [Ni(NH3)6]S 0 4 has been determined by single-crystal X-ray dif­ fraction (P2,/c; Z = 4; a = 705.0(1), b = 1195.2(2), c = 1180.0(2) pm, ß = 96.14(3)°; 2271 reflections; R x = 3.94%). In the hitherto unknown structure type, both the [Ni(NH3)6]2+ and the S 0 42-ions form chains along [100], The six crystallographically different ammine ligands of the distorted [Ni(NH3)6]2+ octahedra are involved in hydrogen bonds to six crystallographically equivalent S 0 42-ions (site symmetry C |). The strength of the hydrogen bonds differs strongly (i'od ° f matrix isolated N H 2D molecules: 2378 -2494 cm -1 , N -O distances: 272 -340 pm). The temperature evolution of the IR bands reveals the decrease of the dynamic orientational disorder of the N H 3 molecules with decreasing temperature. 
  Reference    Z. Naturforsch. 54b, 843—848 (1999); eingegangen am 8. März 1999 
  Published    1999 
  Keywords    Hexammine Nickel Sulfate, Ammoniates, Crystal Structure, IR Data, Hydrogen Bonding 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0843.pdf 
 Identifier    ZNB-1999-54b-0843 
 Volume    54