data_[Sr16Ca4Sn8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ca  1.0000  1.8000  1.1400
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Cmcm]
_cell_length_a [10.0691]
_cell_length_b [15.4367]
_cell_length_c [7.2413]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [63]
_chemical_formula_structural [Sr4CaSn2]
_chemical_formula_sum '[Sr16 Ca4 Sn8]'
_cell_volume [1125.5433]
_cell_formula_units_Z [4]
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
[
  Sr  Sr0  8  0.1798  0.2567  0.2500  1
  Sr  Sr1  8  0.2120  0.0000  0.0000  1
  Ca  Ca2  4  0.0000  0.3664  0.7500  1
  Sn  Sn3  4  0.0000  0.1512  0.7500  1
  Sn  Sn4  4  0.0000  0.4295  0.2500  1
]