data_[Sm2Ni4Bi4Se4O8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Ni  1.9100  1.3500  0.7400
  Bi  2.0200  1.6000  1.0350
  Se  2.5500  1.1500  1.0133
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [5.6089]
_cell_length_b [5.5942]
_cell_length_c [12.8135]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.9602]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [SmNi2Bi2(SeO2)2]
_chemical_formula_sum '[Sm2 Ni4 Bi4 Se4 O8]'
_cell_volume [393.3264]
_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
[
  Sm  Sm0  2  0.0000  0.0000  0.0000  1
  Ni  Ni1  4  0.0000  0.2720  0.5000  1
  Bi  Bi2  4  0.0965  0.5000  0.2021  1
  Se  Se3  4  0.1741  0.0000  0.3768  1
  O  O4  8  0.1960  0.2514  0.8858  1
]