data_[Na2Mg1U1F8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Mg  1.3100  1.5000  0.8600
  U  1.3800  1.7500  0.9913
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [4.0280]
_cell_length_b [7.4012]
_cell_length_c [5.4981]
_cell_angle_alpha [90.0000]
_cell_angle_beta [93.4077]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [Na2MgUF8]
_chemical_formula_sum '[Na2 Mg1 U1 F8]'
_cell_volume [163.6174]
_cell_formula_units_Z [1]
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
[
  Na  Na0  2  0.5000  0.2189  0.5000  1
  Mg  Mg1  1  0.0000  0.0000  0.0000  1
  U  U2  1  0.0000  0.5000  0.0000  1
  F  F3  4  0.0561  0.2533  0.7724  1
  F  F4  2  0.3977  0.0000  0.2203  1
  F  F5  2  0.4834  0.5000  0.2338  1
]