data_[Pm4Tl8Ga4Te16]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Tl  1.6200  1.9000  1.3325
  Ga  1.8100  1.3000  0.7600
  Te  2.1000  1.4000  1.2933
]
_symmetry_space_group_name_H-M [Imma]
_cell_length_a [9.0063]
_cell_length_b [9.0837]
_cell_length_c [13.1309]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [74]
_chemical_formula_structural [PmTl2GaTe4]
_chemical_formula_sum '[Pm4 Tl8 Ga4 Te16]'
_cell_volume [1074.2406]
_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
[
  Pm  Pm0  4  0.0000  0.0000  0.0000  1
  Tl  Tl1  4  0.0000  0.0000  0.5000  1
  Tl  Tl2  4  0.2500  0.2500  0.7500  1
  Ga  Ga3  4  0.2500  0.2500  0.2500  1
  Te  Te4  8  0.0000  0.0332  0.2430  1
  Te  Te5  8  0.2364  0.2500  0.0163  1
]