data_[Sm3Dy6Ho3Se18]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Dy  1.2200  1.7500  1.1310
  Ho  1.2300  1.7500  1.0410
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [R3]
_cell_length_a [7.2410]
_cell_length_b [7.2410]
_cell_length_c [19.5048]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [146]
_chemical_formula_structural [SmDy2HoSe6]
_chemical_formula_sum '[Sm3 Dy6 Ho3 Se18]'
_cell_volume [885.6572]
_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  0.8154  1.0
  Dy  Dy1  3  0.0000  0.0000  0.0129  1.0
  Dy  Dy2  3  0.0000  0.0000  0.5150  1.0
  Ho  Ho3  3  0.0000  0.0000  0.3184  1.0
  Se  Se4  9  0.0000  0.3073  0.9170  1.0
  Se  Se5  9  0.0377  0.6766  0.0830  1.0
]