Litharge
      Boher P, Garnier P, Gavarri J R, Hewat A W
      Journal of Solid State Chemistry 57 (1985) 343-350
      Monoxyde quadratique PbO alpha(I): Description de la transition structurale ferroelastique
      Method: Neutron Diffraction
      T = 30 K
      Locality: synthetic
      _database_code_amcsd 0013537

      CELL PARAMETERS:    5.6112   5.6091   4.9935   90.000   90.000   90.000
      SPACE GROUP: Cmma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    157.164
      Density (g/cm3):      9.432
      MAX. ABS. INTENSITY / VOLUME**2:      785.3765378    
      RIR:     27.114
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                17.76          2.61        4.9935    0   0   1         2
                28.74        100.00        3.1061    1   1   1         8
                31.90         16.18        2.8056    2   0   0         2
                31.91         16.16        2.8045    0   2   0         2
                35.97         11.42        2.4968    0   0   2         2
                42.79          1.05        2.1131    1   1   2         8
                45.74         16.22        1.9835    2   2   0         4
                48.83         12.91        1.8651    2   0   2         4
                48.84         12.91        1.8648    0   2   2         4
                54.92         16.13        1.6719    3   1   1         8
                54.93         16.12        1.6715    1   3   1         8
                59.52         10.79        1.5531    2   2   2         8
                60.30         11.32        1.5349    1   1   3         8
                66.67          2.48        1.4028    4   0   0         2
                66.70          2.48        1.4023    0   4   0         2
                74.18          6.39        1.2783    3   3   1         8
                75.83          2.72        1.2546    4   2   0         4
                75.85          2.71        1.2543    2   4   0         4
                76.27          1.46        1.2484    0   0   4         2
                78.15          2.42        1.2230    4   0   2         4
                78.18          2.42        1.2226    0   4   2         4
                78.85          5.05        1.2140    3   1   3         8
                78.86          5.05        1.2138    1   3   3         8
                85.05          1.78        1.1406    2   0   4         4
                85.06          1.78        1.1405    0   2   4         4
                86.89          4.55        1.1210    4   2   2         8
                86.91          4.55        1.1208    2   4   2         8
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.