data_[Na26Sr6]
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 [Amm2]
_cell_length_a [8.4618]
_cell_length_b [12.4135]
_cell_length_c [12.5460]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [Na13Sr3]
_chemical_formula_sum '[Na26 Sr6]'
_cell_volume [1317.8353]
_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  8  0.2618  0.2420  0.2544  1
  Na  Na1  4  0.0000  0.2351  0.4946  1
  Na  Na2  4  0.2635  0.0000  0.4851  1
  Na  Na3  4  0.5000  0.2331  0.5081  1
  Na  Na4  2  0.0000  0.0000  0.2689  1
  Na  Na5  2  0.5000  0.0000  0.2609  1
  Na  Na6  2  0.5000  0.0000  0.7357  1
  Sr  Sr7  4  0.2513  0.0000  0.0066  1
  Sr  Sr8  2  0.0000  0.0000  0.7284  1
]