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'Single Crystal Preparation' in keywords Facet   section ZfN Section B  [X]
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1983 (1)
1982 (1)
1Author    Berthold Brazel, Rudolf HoppeRequires cookie*
 Title    Über Oxoplumbate(rV) Die Kristallstruktur von TT-Li2Pb03 [1] On Oxoplumbates(IV) The Crystal Structure of LT-Li2Pb03 [1]  
 Abstract    For the first time single crystals of LT-Li2Pb03 have been prepared by decomposition of K2Li6[Pb20s] [incompletely closed Ag cylinders, sealed in Supremax-glass ampoule, vacuum, 690°C, 100 d]. The structure determination [533Io(hkl); four-circle-diffractometer PW1100, co -scan, Mo -Ka, R = 4,86%, Rw = 4,93% confirms space group C2/c with a = 544.52(7), 6 = 926.12(7), c = 547,56(8) pm, ß = 111.216(13)°, Z = 4, drö = 6.94 g-cm" 3 , dpyk = 6.89 g • cm -3 . The NaCl-type structure variant is characterized by alternating layers of Li(2)+ and Li(l)+/Pb 4+ ~ cations. All atoms have octahedral coordination. The Madelung Part of Lattice Energy, MAPLE, Effective Coordination Numbers, ECoN, these via Mean Fictive Ionic Radii, MEFIR, are calculated. 
  Reference    Z. Naturforsch. 37b, 1369—1374 (1982); eingegangen am 23. Juni 1982 
  Published    1982 
  Keywords    Lithiumoxoplumbate(IV), Single Crystal Preparation, Structure, Lattice Energy 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-1369.pdf 
 Identifier    ZNB-1982-37b-1369 
 Volume    37 
2Author    Berthold Brazel, Rudolf HoppeRequires cookie*
 Title    Über Oxoplumbate(IV) Die Kristallstruktur von HT-Li2Pb03 [1] The Crystal Structure of HT-Li2Pb03 [1]  
 Abstract    Single crystals of HT-Li2Pb03 have been prepared by heating of mixtures of Rb2Pb03 and Li20 [Ag-cylinders, 600 °C, 100 d]. The structure determination [1005 symmetry independent l0(hkl), R = 5.85%, Rw = 5.35%, confirms space group C2/c with a = 548.60(16), b = 949.51(22), c = 1027.35(27) pm, ß = 100.11(3)°, drö = 6.78 g • cm-3 , dpyk = 6.80 g • cm-3 , Z — 8. The NaCl-type structure variant is characterized by alter-nating layers of Li+ and Pb 4+ /Li + cations, which are all octahedrally coordinated. Effective Coordination Numbers, ECoN are calculated via Mean Fictive Ionic Radii, MEFIR. 
  Reference    Z. Naturforsch. 38b, 661—664 (1983); eingegangen am 15. Februar 1983 
  Published    1983 
  Keywords    Lithiumoxoplumbate(IV) (High Temperature Form), Single Crystal Preparation, Structure 
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 TEI-XML for    default:Reihe_B/38/ZNB-1983-38b-0661.pdf 
 Identifier    ZNB-1983-38b-0661 
 Volume    38