Über Oxoplumbate(IV) Die Kristallstruktur von HT-Li₂PbO₃ [1] The Crystal Structure of HT-Li₂PbO₃ [1] / On Oxoplumbates(IV) The Crystal Structure of HT-Li₂PbO₃ [1]

Abstract

Abstract Single crystals of HT-Li 2 PbO 3 have been prepared by heating of mixtures of Rb 2 PbO 3 and Li 2 O [Ag-cylinders, 600 °C, 100 d]. The structure determination [1005 symmetry independent l 0 (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, β = 100.11(3)°, d rö = 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 Pb4 + /Li + cations, which are all octahedrally coordinated. Effective Coordination Numbers, ECoN are calculated via Mean Fictive Ionic Radii, MEFIR.