data_[Sr8Zn4Sn8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Zn  1.6500  1.3500  0.8800
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [11.7172]
_cell_length_b [5.0003]
_cell_length_c [11.7361]
_cell_angle_alpha [90.0000]
_cell_angle_beta [118.5727]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Sr2ZnSn2]
_chemical_formula_sum '[Sr8 Zn4 Sn8]'
_cell_volume [603.8719]
_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  4  0.0121  0.0000  0.3332  1
  Sr  Sr1  4  0.1833  0.0000  0.1051  1
  Zn  Zn2  4  0.2193  0.5000  0.3515  1
  Sn  Sn3  4  0.0162  0.5000  0.8797  1
  Sn  Sn4  4  0.1463  0.5000  0.5579  1
]