As H3
      Natta G, Casazza E
      Gazzetta Chimica Italiana 60 (1930) 851-859
      La struttura dell'idrogeno fosforato (P H3) e dell'idrogeno arsenicale (As H3)
      _cod_database_code 1010133
      _database_code_amcsd 0017063

      CELL PARAMETERS:    6.4000   6.4000   6.4000   90.000   90.000   90.000
      SPACE GROUP: P4_232    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    262.144
      Density (g/cm3):      1.975
      MAX. ABS. INTENSITY / VOLUME**2:      65.76703922    
      RIR:     10.844
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                24.08        100.00        3.6950    1   1   1         8
                27.88         48.32        3.2000    2   0   0         6
                39.84         37.28        2.2627    2   2   0        12
                47.09         45.44        1.9297    3   1   1        24
                49.32         13.78        1.8475    2   2   2         8
                57.61          6.20        1.6000    4   0   0         6
                63.34         17.47        1.4683    3   3   1        24
                65.19         15.83        1.4311    4   2   0        24
                72.33         11.10        1.3064    4   2   2        24
                77.50          3.04        1.2317    3   3   3         8
                77.50          9.13        1.2317    5   1   1        24
                85.91          3.44        1.1314    4   4   0        12
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.