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1982 (1)
1Author    Karl-Friedrich Tebbe, Bernhard FreckmannRequires cookie*
 Title    Untersuchungen an Polyhalogeniden, V [1]  
 Abstract    Darstellung und Kristallstruktur des Tetrammin-palladium(II)-oktaiodids, [Pd(NH3)4]I8 Studies on the Polyhalides, V [1] Preparation and Crystal Structure of [Pd(NH3)4]l8 The new compound [Pd(NH3)4]l8 crystallizes monoclinically in the space group P2i/m with a = 959.0 pm, b = 835.4 pm, c = 1301.1 pm, ß = 103.37° and Z = 2 formula units. The crystal structure has been solved by 'direct methods' and refined to R = 0.057 with 1357 observed reflections. The structure consists of quadratically coordinated cations [Pd(NH3)4] 2+ and planar, Z-shaped and completely ordered octaiodide anions I8 2 ~. According to the sequence of interatomic distances d(I-I) = 295.0 pm, 289.9 pm, 336.2 pm, 279.1 pm, 327.0 pm, 339.3 pm, 273.8 pm the anions may be described as [I3- • I2 • (I~ • I2)]-The iodide-iodine sides (I- • I2) are joined with the distance d(I---I) = 364.1 pm to a slightly bent triiodide chain being part of an octaiodide ribbon ^ [Is 2-]-Next contact spacings between neigh-boring anions start at d(I---I) = 403.7 pm. 
  Reference    Z. Naturforsch. 37b, 542—549 (1982); eingegangen am 26. November 1981 
  Published    1982 
  Keywords    Palladium Complex, Polyhalide, Octaiodide Ion, Iodine Chain, Crystal Structure 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0542.pdf 
 Identifier    ZNB-1982-37b-0542 
 Volume    37