data_[Sr6Si18Pd18]
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
  Pd  2.2000  1.4000  0.8462
]
_symmetry_space_group_name_H-M [R-3]
_cell_length_a [6.7813]
_cell_length_b [6.7813]
_cell_length_c [21.6302]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [148]
_chemical_formula_structural [Sr(SiPd)3]
_chemical_formula_sum '[Sr6 Si18 Pd18]'
_cell_volume [861.4359]
_cell_formula_units_Z [6]
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  0.0000  0.0000  0.3326  1
  Si  Si1  18  0.0071  0.5979  0.1198  1
  Pd  Pd2  18  0.0015  0.7518  0.8971  1
]