data_[Sr6Cu16Sn8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Cu  1.9000  1.3500  0.8200
  Sn  1.9600  1.4500  0.8300
]
_symmetry_space_group_name_H-M [P6_3mc]
_cell_length_a [9.3351]
_cell_length_b [9.3351]
_cell_length_c [7.8667]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [186]
_chemical_formula_structural [Sr3(Cu2Sn)4]
_chemical_formula_sum '[Sr6 Cu16 Sn8]'
_cell_volume [593.6879]
_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  6  0.0509  0.5255  0.4997  1
  Cu  Cu1  6  0.0988  0.1976  0.4786  1
  Cu  Cu2  6  0.1612  0.3223  0.1738  1
  Cu  Cu3  2  0.0000  0.0000  0.2253  1
  Cu  Cu4  2  0.3333  0.6667  0.8315  1
  Sn  Sn5  6  0.1661  0.3321  0.7964  1
  Sn  Sn6  2  0.3333  0.6667  0.1805  1
]