K N3
      Hendricks S, Pauling L
      Journal of the American Chemical Society 47 (1925) 2904-2920
      The Crystal Structures of Sodium and Potassium Trinitrides and
      Potassium Cyanate and the Nature of the Trinitride Group
      _cod_database_code 1010089
      _database_code_amcsd 0017023

      CELL PARAMETERS:    6.0940   6.0940   7.0560   90.000   90.000   90.000
      SPACE GROUP: I4/mcm    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    262.038
      Density (g/cm3):      2.056
      MAX. ABS. INTENSITY / VOLUME**2:      21.00609747    
      RIR:      3.327
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.61          6.22        4.3091    1   1   0         4
                29.31         41.09        3.0470    2   0   0         4
                32.81        100.00        2.7298    1   1   2         8
                35.30         15.42        2.5423    2   1   1        16
                39.06         11.34        2.3060    2   0   2         8
                41.93         14.56        2.1546    2   2   0         4
                47.16         11.09        1.9271    3   1   0         8
                49.58          3.77        1.8388    2   2   2         8
                51.31          3.58        1.7806    2   1   3        16
                51.83          7.12        1.7640    0   0   4         2
                54.24         11.44        1.6912    3   1   2        16
                55.94          1.40        1.6437    3   2   1        16
                60.66          5.98        1.5266    2   0   4         8
                66.90          4.42        1.3987    4   0   2         8
                68.78          4.14        1.3649    2   2   4         8
                68.91          4.53        1.3627    4   2   0         8
                70.83          6.41        1.3303    3   3   2         8
                72.67          4.03        1.3012    3   1   4        16
                74.67          1.26        1.2711    4   2   2        16
                80.34          1.00        1.1951    5   1   0         8
                85.61          2.71        1.1345    1   1   6         8
                85.85          2.68        1.1319    5   1   2        16
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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.