data_[Na6Sr2F14]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sr  0.9500  2.0000  1.3200
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [Cm]
_cell_length_a [8.6070]
_cell_length_b [8.6760]
_cell_length_c [5.6887]
_cell_angle_alpha [90.0000]
_cell_angle_beta [129.9549]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [8]
_chemical_formula_structural [Na3SrF7]
_chemical_formula_sum '[Na6 Sr2 F14]'
_cell_volume [325.6320]
_cell_formula_units_Z [2]
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  4  0.4824  0.2215  0.4694  1.0
  Na  Na1  2  0.0259  0.5000  0.0177  1.0
  Sr  Sr2  2  0.4853  0.5000  0.9479  1.0
  F  F3  4  0.1219  0.2503  0.2366  1.0
  F  F4  4  0.3606  0.2329  0.7356  1.0
  F  F5  2  0.1453  0.5000  0.7652  1.0
  F  F6  2  0.3339  0.0000  0.1622  1.0
  F  F7  2  0.4549  0.5000  0.4736  1.0
]