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1984 (1)
1Author    Karl Häberle, Martin DrägerRequires cookie*
 Title    Germanium-haltige Heterocyclen  
 Abstract    , V I [1] Ph8Ge50 6, ein Germoxan aus bicyclisch verknüpften (G eO)4-Ringen Heterocyclic Systems Containing Germanium, V I [1] Ph8Ge5O ft, a Germoxane Formed by Bicyclic Connected (G eO)4-Rings The title compound l,3,3,5,7,7,10,10-octaphenyl-2,4,6,8,9,ll-hexoxa-l,3,5,7,ll-pentagerma-bicyclo[3.3.3]undecane is synthesized from PhGeCl3/Ph2GeCl2 and A g N 0 3 in aqueous acetone. The 13C N M R phenyl signals for bridges and bridge-heads are in the expected ratio of intensity 3:1. The crystal structure of Ph8Ge50 6 l/2 acetone has been determined and refined to R = 0.062. The asymmetric unit contains two independent bicyclic PhgGe50 6 cages and one disordered crystal acetone. The total symmetry of both Ph8Ge50 6 molecules is near to D 3, the symmetry of the individual 8-membered rings (G e O)4 is near to C 2 (distances Ge —O 172—180, Ge —C 191-195 pm, angles G e -O -G e 128.0-133.8, O -G e -O 107.5-110.6°). 
  Reference    Z. Naturforsch. 39b, 1541 (1984); eingegangen am 13. April/11. Juli 1984 
  Published    1984 
  Keywords    Germanium, Bicyclic Cage, Ring Conformation 
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 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-1541.pdf 
 Identifier    ZNB-1984-39b-1541 
 Volume    39