data_[Sm3Ho3Si3Se3]
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
  Si  1.9000  1.1000  0.5400
  Se  2.5500  1.1500  1.0133
]
_symmetry_space_group_name_H-M [R3m]
_cell_length_a [4.1341]
_cell_length_b [4.1341]
_cell_length_c [20.5713]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [160]
_chemical_formula_structural [SmHoSiSe]
_chemical_formula_sum '[Sm3 Ho3 Si3 Se3]'
_cell_volume [304.4819]
_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  0.4484  1.0
  Ho  Ho1  3  0.0000  0.0000  0.9402  1.0
  Si  Si2  3  0.0000  0.0000  0.1963  1.0
  Se  Se3  3  0.0000  0.0000  0.6916  1.0
]