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1999 (1)
1Author    F. K. Ubela, H. Billb, H. H. Ag, Em AnRequires cookie*
 Title    Low Temperature Crystal Growth and Structure of Ordered Ba7F12Cl2  
 Abstract    of composition Ba7F12Cl2 were obtained by a reaction at room temperature be­ tween Ba2+/Cl"/F_ in a gel of agar-agar/water. The hexagonal crystals have space group P6, «=1064.69(8), c=417.89(5)pm, V=410.24(8) 106 pm3 and Z=l. The anions form a propeller type network located in tunnels parallel to the chex axis; the chloride ions are located at the center on the propeller axes. The Ba2+ ions are coordinated by a (distorted) tricapped trigo­ nal environment of fluoride and chloride anions. Disorder is present for one particular Ba2+ site. The average structure is isotypic with the structure of Pb7F)2Cl2. 
  Reference    Z. Naturforsch. 54b, 515—518 (1999); received November 30 1998 
  Published    1999 
  Keywords    Bariumfluorochloride, Hexagonal Crystal Structure, Crystal Growth, Low Temperature Gel Method Crystals 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0515.pdf 
 Identifier    ZNB-1999-54b-0515 
 Volume    54