Nb Se3
      van Smaalen S, de Boer J, Meetsma A, Graafsma H, Sheu H, Darovskikh A,
      Coppens P, Levy F
      Physical Review B45 (1992) 3103-3106
      Determination of the structural distortions corresponding to the q1-
      and q2-type modulations in niobium triselenide Nb Se3
      _cod_database_code 1008952
      _database_code_amcsd 0016818

      CELL PARAMETERS:    9.9740   3.4760  15.5920   90.000  109.400   90.000
      SPACE GROUP: P2_1/m    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    509.877
      Density (g/cm3):      6.443
      MAX. ABS. INTENSITY / VOLUME**2:      925.1412232    
      RIR:     46.752
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 6.01        100.00       14.7067    0   0   1         2
                 9.33          3.07        9.4827   -1   0   1         2
                 9.40         32.73        9.4077    1   0   0         2
                12.58          2.71        7.0378   -1   0   2         2
                17.79          1.20        4.9866   -2   0   1         2
                18.72          1.63        4.7414   -2   0   2         2
                21.66          1.91        4.1023    2   0   1         2
                31.15          2.06        2.8716   -1   1   3         4
                31.55          1.02        2.8355    0   1   3         4
                31.92          3.25        2.8033   -2   1   2         4
                34.60          1.41        2.5921   -1   1   4         4
                35.54          1.51        2.5259    0   1   4         4
                37.59          1.13        2.3927   -3   1   1         4
                39.86          2.12        2.2615   -2   1   5         4
                43.76          1.34        2.0688    1   1   5         4
                44.07          1.15        2.0550   -2   1   6         4
                49.00          1.12        1.8591    1   1   6         4
                52.66          2.04        1.7380    0   2   0         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.