data_[Sr16Cu8Si24]
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
  Si  1.9000  1.1000  0.5400
]
_symmetry_space_group_name_H-M [Fmmm]
_cell_length_a [8.2272]
_cell_length_b [9.3246]
_cell_length_c [14.2350]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [69]
_chemical_formula_structural [Sr2CuSi3]
_chemical_formula_sum '[Sr16 Cu8 Si24]'
_cell_volume [1092.0331]
_cell_formula_units_Z [8]
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  0.0000  0.2452  0.0000  1.0
  Sr  Sr1  8  0.2500  0.2500  0.2500  1.0
  Si  Si2  16  0.2474  0.0000  0.4162  1.0
  Si  Si3  8  0.0000  0.0000  0.1672  1.0
  Cu  Cu4  8  0.0000  0.0000  0.3332  1.0
]