data_[Pm6Nb2Te4O12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Nb  1.6000  1.4500  0.8200
  Te  2.1000  1.4000  1.2933
  O  3.4400  0.6000  1.2600
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [12.0484]
_cell_length_b [6.5165]
_cell_length_c [6.1928]
_cell_angle_alpha [90.0000]
_cell_angle_beta [102.9133]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm3Nb(TeO3)2]
_chemical_formula_sum '[Pm6 Nb2 Te4 O12]'
_cell_volume [473.9182]
_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
[
  Pm  Pm0  4  0.2500  0.2500  0.5000  1
  Pm  Pm1  2  0.0000  0.5000  0.0000  1
  Nb  Nb2  2  0.0000  0.0000  0.5000  1
  Te  Te3  4  0.2478  0.5000  0.9328  1
  O  O4  8  0.0532  0.2349  0.3119  1
  O  O5  4  0.1644  0.0000  0.6576  1
]