data_[Na1Sr4]
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
]
_symmetry_space_group_name_H-M [P2/m]
_cell_length_a [6.5242]
_cell_length_b [4.0734]
_cell_length_c [10.3427]
_cell_angle_alpha [90.0000]
_cell_angle_beta [107.2145]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [10]
_chemical_formula_structural [NaSr4]
_chemical_formula_sum '[Na1 Sr4]'
_cell_volume [262.5538]
_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  0.5000  0.0000  1.0
  Sr  Sr1  2  0.1982  0.5000  0.3936  1.0
  Sr  Sr2  2  0.3917  0.0000  0.7877  1.0
]