La2NiO4
      Rodriguez-Carvajal J, Fernandez-Diaz M, Martinez J
      Journal of Physics: Condensed Matter 3 (1991) 3215-3234
      Neutron diffraction study on structural and magnetic properties of La2NiO4
      _cod_database_code 1006043
      _database_code_amcsd 0013264

      CELL PARAMETERS:    5.4995   5.4995  12.5052   90.000   90.000   90.000
      SPACE GROUP: P4_2/ncm  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    378.214
      Density (g/cm3):      7.033
      MAX. ABS. INTENSITY / VOLUME**2:      162.5932605    
      RIR:      7.528
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.16          5.34        6.2526    0   0   2         2
                23.96         26.57        3.7133    1   1   1         8
                28.55         13.30        3.1263    0   0   4         2
                31.46        100.00        2.8435    1   1   3         8
                32.56         74.59        2.7497    2   0   0         4
                43.00         24.39        2.1035    1   1   5         8
                43.42          7.88        2.0842    0   0   6         2
                43.85         28.15        2.0647    2   0   4         8
                46.72         34.13        1.9444    2   2   0         4
                53.17          5.12        1.7225    3   1   1        16
                55.31          7.63        1.6610    2   0   6         8
                55.67          6.62        1.6511    2   2   4         8
                56.70          7.79        1.6234    1   1   7         8
                57.41         31.30        1.6050    3   1   3        16
                59.10          4.29        1.5632    0   0   8         2
                65.36         10.65        1.4278    3   1   5        16
                65.67          6.66        1.4217    2   2   6         8
                68.21          8.34        1.3749    4   0   0         4
                69.12          7.05        1.3589    2   0   8         8
                75.55          2.21        1.2585    4   0   4         8
                76.44          5.26        1.2461    3   1   7        16
                77.05          5.66        1.2378    3   3   3         8
                77.64          7.73        1.2297    4   2   0         8
                78.51          6.32        1.2183    2   2   8         8
                84.11          2.14        1.1509    3   3   5         8
                84.40          2.61        1.1477    4   0   6         8
                84.70          5.00        1.1444    4   2   4        16
                89.90          6.10        1.0912    1   1  11         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.