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1982 (2)
1Author    Ursula Frank-Cordier, Gerhard Cordier, Herbert SchäferRequires cookie*
 Title    Die Struktur des Na7Ga13-I und ein Konzept zur bindungsmäßigen Deutung The Structure of NavGai3-I and its Characterization by a Bonding Scheme  
 Abstract    The new compound NayGa^-I crystallizes in the trigonal-rhombohedral system, space group R 3 m, with the constants a = 1496.5(3) pm, c = 3893(1) pm, c/o = 2.60. The Ga atoms form Gai2 icosahedra and Gais clusters, connected to a threedimensional net. The arrangement of these clusters is related to the MgCu2 structure. The Na content of this compound correlates with the number of electrons necessary for a stable electron configuration in the Ga partial structure. The BaAl4 type structure of NaGa4 has been confirmed by single crystal data. 
  Reference    (Z. Naturforsch. 37b, 119—126 [1982]; eingegangen am 5. Oktober 1981) 
  Published    1982 
  Keywords    Natrium Gallides, Crystal Structure, Bonding Scheme 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0119.pdf 
 Identifier    ZNB-1982-37b-0119 
 Volume    37 
2Author    Ursula Frank-Cordier, Gerhard Cordier, Herbert SchäferRequires cookie*
 Title    Neue Ga-Cluster-Verbände im Na7Ga13-II New Ga-Cluster Compounds: The Structure of Na7Gai3-II  
 Abstract    Na7Gai3-II crystallizes in the orthorhombic system, space group Pnma with the con-stants a -1562.5(3) pm, b = 1497.9(3) pm, c = 2167.8(4) pm. The Ga-atoms form Gaj.2 icosahedra and Gais clusters connected to a threedimensional network. The centres of these clusters correspond to the atomic positions of the MgCu2 structure. The number of bonding electrons is related to the Na content of the compound. 
  Reference    (Z. Naturforsch. 37b, 127—135 [1982]; eingegangen am 5. Oktober 1981) 
  Published    1982 
  Keywords    Natrium Gallides, Crystal Structure, Bonding Scheme 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0127.pdf 
 Identifier    ZNB-1982-37b-0127 
 Volume    37