data_[K6Er4Pt2O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Er  1.2400  1.7500  1.0300
  Pt  2.2800  1.3500  0.8050
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [5.8178]
_cell_length_b [10.2198]
_cell_length_c [6.4799]
_cell_angle_alpha [90.0000]
_cell_angle_beta [106.6023]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [K3Er2PtO6]
_chemical_formula_sum '[K6 Er4 Pt2 O12]'
_cell_volume [369.2127]
_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
[
  K  K0  4  0.0000  0.1594  0.5000  1
  K  K1  2  0.0000  0.5000  0.5000  1
  Er  Er2  4  0.0000  0.3304  0.0000  1
  Pt  Pt3  2  0.0000  0.0000  0.0000  1
  O  O4  8  0.2355  0.1712  0.1959  1
  O  O5  4  0.2415  0.5000  0.1742  1
]