data_[Sm3Dy3Ge3Se3]
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
  Ge  2.0100  1.2500  0.7700
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [4.1665]
_cell_length_b [4.1665]
_cell_length_c [20.5636]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [SmDyGeSe]
_chemical_formula_sum '[Sm3 Dy3 Ge3 Se3]'
_cell_volume [309.1493]
_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  0.5520  1.0
  Dy  Dy1  3  0.0000  0.0000  0.0595  1.0
  Ge  Ge2  3  0.0000  0.0000  0.8041  1.0
  Se  Se3  3  0.0000  0.0000  0.3081  1.0
]