data_[Sr3Ga18Cu36]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sr  0.9500  2.0000  1.3200
  Ga  1.8100  1.3000  0.7600
  Cu  1.9000  1.3500  0.8200
]
_symmetry_space_group_name_H-M [R-3m]
_cell_length_a [10.8047]
_cell_length_b [10.8047]
_cell_length_c [8.7017]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [166]
_chemical_formula_structural [Sr(GaCu2)6]
_chemical_formula_sum '[Sr3 Ga18 Cu36]'
_cell_volume [879.7611]
_cell_formula_units_Z [3]
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  3  0.0000  0.0000  0.0000  1
  Ga  Ga1  18  0.0555  0.5278  0.2521  1
  Cu  Cu2  18  0.0000  0.3874  0.5000  1
  Cu  Cu3  18  0.0932  0.1865  0.3020  1
]