data_[Na1Sr2Cr1F8]
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
  Cr  1.6600  1.4000  0.9400
  F  3.9800  0.5000  0.7050
]
_symmetry_space_group_name_H-M [P-1]
_cell_length_a [4.2205]
_cell_length_b [5.6935]
_cell_length_c [7.2563]
_cell_angle_alpha [86.3661]
_cell_angle_beta [88.5310]
_cell_angle_gamma [87.7558]
_symmetry_Int_Tables_number [2]
_chemical_formula_structural [NaSr2CrF8]
_chemical_formula_sum '[Na1 Sr2 Cr1 F8]'
_cell_volume [173.8340]
_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  1  0.0000  0.0000  0.5000  1.0
  Sr  Sr1  2  0.3084  0.4945  0.2539  1.0
  Cr  Cr2  1  0.0000  0.0000  0.0000  1.0
  F  F3  2  0.2063  0.2230  0.8182  1.0
  F  F4  2  0.2330  0.6514  0.5559  1.0
  F  F5  2  0.2401  0.0676  0.2159  1.0
  F  F6  2  0.2517  0.7108  0.9493  1.0
]