data_Er(PbO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.03
_cell_length_b   7.03
_cell_length_c   7.03
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Er(PbO2)2
_chemical_formula_sum   'Er2 Pb4 O8'
_cell_volume   245.42
_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
  Er  Er0  1  0.0  0.0  0.0  1.0
  Er  Er1  1  0.48  0.48  0.48  1.0
  Pb  Pb10  1  0.73  0.73  0.21  1.0
  Pb  Pb11  1  0.73  0.21  0.73  1.0
  Pb  Pb12  1  0.21  0.73  0.73  1.0
  Pb  Pb13  1  0.21  0.21  0.21  1.0
  O  O2  1  0.73  0.73  0.73  1.0
  O  O3  1  0.73  0.21  0.21  1.0
  O  O4  1  0.21  0.73  0.21  1.0
  O  O5  1  0.21  0.21  0.7  1.0
  O  O6  1  0.21  0.21  0.73  1.0
  O  O7  1  0.21  0.7  0.21  1.0
  O  O8  1  0.7  0.7  0.7  1.0
  O  O9  1  0.7  0.21  0.21  1.0

data_Er(PbO2)2
_symmetry_space_group_name_H-M   R3m
_cell_length_a   7.03
_cell_length_b   7.03
_cell_length_c   17.21
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Er(PbO2)2
_chemical_formula_sum   'Er6 Pb12 O24'
_cell_volume   736.25
_cell_formula_units_Z   6
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Er  Er0  3  0.0  0.0  0.0  1.0
  Er  Er1  3  0.0  0.0  0.52  1.0
  Pb  Pb2  9  0.01  0.51  0.78  1.0
  Pb  Pb3  3  0.0  0.0  0.79  1.0
  O  O4  9  0.01  0.5  0.29  1.0
  O  O5  9  0.17  0.34  0.62  1.0
  O  O6  3  0.0  0.0  0.27  1.0
  O  O7  3  0.0  0.0  0.3  1.0

Er Er Pb Pb Pb Pb O O O O O O O O