Hydrate - tetrahydrofuran
      Jones C Y, Marshall S L, Chakoumakos B C, Rawn C J, Ishii Y
      Journal of Physical Chemistry B107 (2003) 6026-6031
      Structure and thermal expansivity of tetrahydrofuran deuterate determined by
      neutron powder diffraction
      Sample: cell T = 7 K, positions T = 5 K, guest molecule
      Note: occupancies of C11 and H14 switched to reproduce reported formula
      _database_code_amcsd 0013160

      CELL PARAMETERS:   17.1030  17.1030  17.1030   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   5002.844
      Density (g/cm3):      0.191
      MAX. ABS. INTENSITY / VOLUME**2:      3.829662479    
      RIR:      6.514
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 8.96        100.00        9.8744    1   1   1         8
                14.65         64.43        6.0468    2   2   0        12
                17.20         33.78        5.1567    3   1   1        24
                20.77          6.91        4.2758    4   0   0         6
                22.66          7.89        3.9237    3   3   1        24
                25.51          7.05        3.4911    4   2   2        24
                27.09          2.52        3.2915    5   1   1        24
                29.55          1.04        3.0234    4   4   0        12
                30.93          1.37        2.8909    5   3   1        48
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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.