data_[Pm4Ag6Ge2Te12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Ag  1.9300  1.6000  1.0867
  Ge  2.0100  1.2500  0.7700
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [20.2306]
_cell_length_b [4.3122]
_cell_length_c [8.2669]
_cell_angle_alpha [90.0000]
_cell_angle_beta [101.3139]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm2Ag3GeTe6]
_chemical_formula_sum '[Pm4 Ag6 Ge2 Te12]'
_cell_volume [707.1703]
_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  0.1738  0.0000  0.3133  1
  Ag  Ag1  4  0.2068  0.0000  0.8263  1
  Ag  Ag2  2  0.0000  0.5000  0.5000  1
  Ge  Ge3  2  0.0000  0.5000  0.0000  1
  Te  Te4  4  0.0112  0.0000  0.2642  1
  Te  Te5  4  0.1514  0.5000  0.0346  1
  Te  Te6  4  0.1664  0.5000  0.5870  1
]