data_[Tm2Mg8Ag4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tm  1.2500  1.7500  1.0950
  Mg  1.3100  1.5000  0.8600
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [P4_2/mnm]
_cell_length_a [9.5021]
_cell_length_b [9.5021]
_cell_length_c [3.4582]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [136]
_chemical_formula_structural [Tm(Mg2Ag)2]
_chemical_formula_sum '[Tm2 Mg8 Ag4]'
_cell_volume [312.2378]
_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
[
  Tm  Tm0  2  0.0000  0.0000  0.5000  1.0
  Mg  Mg1  8  0.0772  0.3164  0.0000  1.0
  Ag  Ag2  4  0.1867  0.8133  0.0000  1.0
]