data_[Sm1Sb2Cl1O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Sm  1.1700  1.8500  1.2290
  Sb  2.0500  1.4500  0.8300
  Cl  3.1600  1.0000  0.7800
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [P4/mmm]
_cell_length_a [3.8456]
_cell_length_b [3.8456]
_cell_length_c [8.9294]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [123]
_chemical_formula_structural [SmSb2ClO4]
_chemical_formula_sum '[Sm1 Sb2 Cl1 O4]'
_cell_volume [132.0553]
_cell_formula_units_Z [1]
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  1  0.0000  0.0000  0.0000  1.0
  Sb  Sb1  2  0.5000  0.5000  0.2814  1.0
  Cl  Cl2  1  0.0000  0.0000  0.5000  1.0
  O  O3  4  0.0000  0.5000  0.1646  1.0
]