H Nb O3
      Fourquet J, Renou M, De P, Theveneau H, Man P, Lucs O, Pannetier J
      Solid State Ionics 9 (1983) 1011-1013
      H Nb O3, structure and NMR study
      _cod_database_code 1000190
      _database_code_amcsd 0015506

      CELL PARAMETERS:    7.6450   7.6450   7.6450   90.000   90.000   90.000
      SPACE GROUP: Im3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    446.820
      Density (g/cm3):      4.219
      MAX. ABS. INTENSITY / VOLUME**2:      136.2870913    
      RIR:     10.519
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.27        100.00        3.8225    2   0   0         6
                33.14         42.69        2.7029    2   2   0        12
                37.19          2.25        2.4176    3   1   0        12
                37.19          1.13        2.4176    3   0   1        12
                40.89         10.64        2.2069    2   2   2         8
                44.33          2.09        2.0432    3   2   1        24
                47.58         16.38        1.9112    4   0   0         6
                53.61         19.58        1.7095    4   0   2        12
                53.61         14.74        1.7095    4   2   0        12
                59.21         20.88        1.5605    4   2   2        24
                69.56          6.61        1.3515    4   4   0        12
                74.46          1.44        1.2742    6   0   0         6
                74.46          9.97        1.2742    4   4   2        24
                79.25          2.54        1.2088    6   2   0        12
                79.25          3.57        1.2088    6   0   2        12
                83.96          6.07        1.1525    6   2   2        24
                88.64          1.84        1.1035    4   4   4         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.