data_[Pm6Er4Tm2Te12]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Er  1.2400  1.7500  1.0300
  Tm  1.2500  1.7500  1.0950
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [C2/m]
_cell_length_a [19.2852]
_cell_length_b [4.3350]
_cell_length_c [8.8959]
_cell_angle_alpha [90.0000]
_cell_angle_beta [105.2033]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [12]
_chemical_formula_structural [Pm3Er2TmTe6]
_chemical_formula_sum '[Pm6 Er4 Tm2 Te12]'
_cell_volume [717.6858]
_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  0.1674  0.0000  0.8336  1
  Pm  Pm1  2  0.0000  0.5000  0.5000  1
  Er  Er2  4  0.1672  0.0000  0.3341  1
  Tm  Tm3  2  0.0000  0.5000  0.0000  1
  Te  Te4  4  0.0028  0.0000  0.2415  1
  Te  Te5  4  0.1630  0.5000  0.0902  1
  Te  Te6  4  0.1693  0.5000  0.5761  1
]