data_[Na4Sm4Ge4O16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Na  0.9300  1.8000  1.1600
  Sm  1.1700  1.8500  1.2290
  Ge  2.0100  1.2500  0.7700
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [Pnma]
_cell_length_a [11.6127]
_cell_length_b [6.5361]
_cell_length_c [5.3070]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [62]
_chemical_formula_structural [NaSmGeO4]
_chemical_formula_sum '[Na4 Sm4 Ge4 O16]'
_cell_volume [402.8136]
_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
[
  Na  Na0  4  0.0000  0.0000  0.5000  1
  Sm  Sm1  4  0.2211  0.7500  0.9978  1
  Ge  Ge2  4  0.0940  0.2500  0.9361  1
  O  O3  8  0.1691  0.0427  0.7836  1
  O  O4  4  0.0458  0.7500  0.1894  1
  O  O5  4  0.1072  0.2500  0.2624  1
]