data_[Y6Mg3Pt3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Y  1.2200  1.8000  1.0400
  Mg  1.3100  1.5000  0.8600
  Pt  2.2800  1.3500  0.8050
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.5480]
_cell_length_b [5.5480]
_cell_length_c [14.0298]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Y2MgPtO6]
_chemical_formula_sum '[Y6 Mg3 Pt3 O18]'
_cell_volume [373.9840]
_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
[
  Y  Y0  3  0.0000  0.0000  0.0333  1.0
  Y  Y1  3  0.0000  0.0000  0.5375  1.0
  Mg  Mg2  3  0.0000  0.0000  0.8112  1.0
  Pt  Pt3  3  0.0000  0.0000  0.3197  1.0
  O  O4  9  0.0138  0.3994  0.5770  1.0
  O  O5  9  0.0212  0.6202  0.0763  1.0
]