Hydrogen
      Ishmaev S N, Sadikov I P, Chernyshev A A, Vindryevsky B A, Sukhoparov V A,
      Telepnev A S, Kobelyev G V
      Zhurnal Eksperimental'noi i Teoreticheskoi Fiziki 84 (1983) 394-403
      Neutron structural investigations of solid para-hydrogen at pressures
      up to 24 kbar
      Locality: synthetic
      Sample: at P = .0252 GPa & T = 8.5 K
      Note: known as para-hydrogen
      _database_code_amcsd 0015881

      CELL PARAMETERS:    3.6590   3.6590   5.9750   90.000   90.000  120.000
      SPACE GROUP: P6_3/mmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     69.278
      Density (g/cm3):      0.097
      MAX. ABS. INTENSITY / VOLUME**2:     0.9664233617E-01
      RIR:      0.326
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                28.16         57.61        3.1688    1   0   0         6
                31.97        100.00        2.7995    1   0   1        12
                49.84         14.12        1.8295    1   1   0         6
                54.41          6.67        1.6863    1   0   3        12
                58.23          1.34        1.5844    2   0   0         6
                60.45          3.08        1.5315    2   0   1        12
                62.14          1.17        1.4937    0   0   4         2
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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.