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 = 2 K
      Locality: synthetic
      _database_code_amcsd 0013536

      CELL PARAMETERS:    5.6124   5.6089   4.9924   90.000   90.000   90.000
      SPACE GROUP: Cmma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    157.158
      Density (g/cm3):      9.432
      MAX. ABS. INTENSITY / VOLUME**2:      782.7590374    
      RIR:     27.022
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                17.77          2.65        4.9924    0   0   1         2
                28.74        100.00        3.1060    1   1   1         8
                31.89         16.19        2.8062    2   0   0         2
                31.91         16.16        2.8045    0   2   0         2
                35.98         11.40        2.4962    0   0   2         2
                42.80          1.08        2.1128    1   1   2         8
                45.74         16.14        1.9837    2   2   0         4
                48.83         12.82        1.8651    2   0   2         4
                48.84         12.81        1.8646    0   2   2         4
                54.91         16.02        1.6722    3   1   1         8
                54.93         16.00        1.6714    1   3   1         8
                59.52         10.69        1.5530    2   2   2         8
                60.31         11.19        1.5346    1   1   3         8
                66.66          2.45        1.4031    4   0   0         2
                66.70          2.44        1.4022    0   4   0         2
                74.18          6.29        1.2784    3   3   1         8
                75.81          2.68        1.2548    4   2   0         4
                75.85          2.68        1.2543    2   4   0         4
                76.29          1.43        1.2481    0   0   4         2
                78.14          2.38        1.2231    4   0   2         4
                78.19          2.38        1.2225    0   4   2         4
                78.85          4.96        1.2139    3   1   3         8
                78.87          4.96        1.2136    1   3   3         8
                85.07          1.74        1.1404    2   0   4         4
                85.08          1.74        1.1403    0   2   4         4
                86.88          4.45        1.1211    4   2   2         8
                86.92          4.44        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.