Archerite
      Nelmes R J, Meyer G M, Tibballs J E
      Journal of Physics C: Solid State Physics 15 (1982) 59-75
      The crystal structure of tetragonal KH2PO4
      and KD2PO4 as a function of temperature
      Sample: T = 127 K
      _database_code_amcsd 0013164

      CELL PARAMETERS:    7.4264   7.4264   6.9310   90.000   90.000   90.000
      SPACE GROUP: I-42d     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    382.255
      Density (g/cm3):      2.364
      MAX. ABS. INTENSITY / VOLUME**2:      16.43777991    
      RIR:      2.264
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                17.50         18.05        5.0670    1   0   1         8
                23.97        100.00        3.7132    2   0   0         4
                29.83         12.16        2.9951    2   1   1         8
                30.92         98.10        2.8924    1   1   2         4
                34.15         23.75        2.6256    2   2   0         4
                35.43          7.47        2.5335    2   0   2         8
                38.33          3.43        2.3484    3   1   0         8
                38.62         12.99        2.3312    3   0   1         8
                40.91          5.35        2.2060    1   0   3         8
                45.97         12.15        1.9744    3   2   1         8
                46.72         54.25        1.9441    3   1   2         8
                47.97          3.66        1.8966    2   1   3         8
                49.07          1.80        1.8566    4   0   0         4
                52.49          1.66        1.7433    4   1   1         8
                54.31          1.44        1.6890    3   0   3         8
                55.32         10.18        1.6606    4   2   0         8
                58.81          8.88        1.5702    2   0   4         8
                59.13         10.71        1.5624    3   3   2         4
                60.19          2.83        1.5374    3   2   3         8
                63.92          1.06        1.4564    5   1   0         8
                64.43          9.26        1.4462    2   2   4         4
                70.08         11.35        1.3427    5   1   2         8
                71.92          4.27        1.3128    4   4   0         4
                74.97          9.84        1.2668    4   0   4         8
                77.05          1.79        1.2377    6   0   0         4
                80.03          8.85        1.1989    4   2   4         8
                80.31          7.88        1.1954    5   3   2         8
                82.07          5.35        1.1742    6   2   0         8
                82.81          1.35        1.1656    6   0   2         8
                86.21          3.44        1.1282    1   1   6         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.