data_[Sm6Ho3Er3O18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Ho  1.2300  1.7500  1.0410
  Er  1.2400  1.7500  1.0300
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [5.8896]
_cell_length_b [5.8896]
_cell_length_c [15.2253]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [Sm2HoErO6]
_chemical_formula_sum '[Sm6 Ho3 Er3 O18]'
_cell_volume [457.3697]
_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
[
  Sm  Sm0  3  0.0000  0.0000  0.4710  1.0
  Sm  Sm1  3  0.0000  0.0000  0.9712  1.0
  Ho  Ho2  3  0.0000  0.0000  0.1903  1.0
  Er  Er3  3  0.0000  0.0000  0.6898  1.0
  O  O4  9  0.0521  0.3655  0.7525  1.0
  O  O5  9  0.0527  0.6852  0.2528  1.0
]