data_[K4Sm4O4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  K  0.8200  2.2000  1.5200
  Sm  1.1700  1.8500  1.2290
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Amm2]
_cell_length_a [14.7646]
_cell_length_b [3.5198]
_cell_length_c [6.0544]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [38]
_chemical_formula_structural [KSmO]
_chemical_formula_sum '[K4 Sm4 O4]'
_cell_volume [314.6393]
_cell_formula_units_Z [4]
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
[
  K  K0  4  0.1056  0.0000  0.7773  1
  Sm  Sm1  4  0.3911  0.0000  0.3348  1
  O  O2  2  0.0000  0.0000  0.4425  1
  O  O3  2  0.5000  0.0000  0.6667  1
]