data_[Sr6Si4Sn4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Si  1.9000  1.1000  0.5400
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [4.3869]
_cell_length_b [4.8919]
_cell_length_c [19.4561]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Sr3(SiSn)2]
_chemical_formula_sum '[Sr6 Si4 Sn4]'
_cell_volume [417.5339]
_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
[
  Sr  Sr0  4  0.0000  0.5000  0.1798  1
  Sr  Sr1  2  0.0000  0.0000  0.5000  1
  Si  Si2  4  0.0000  0.0000  0.0611  1
  Sn  Sn3  4  0.0000  0.5000  0.3581  1
]