data_[Pm2Zn6Ag9]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pm  1.1300  1.8500  1.1100
  Zn  1.6500  1.3500  0.8800
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [P6/mmm]
_cell_length_a [5.6133]
_cell_length_b [5.6133]
_cell_length_c [13.0951]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [191]
_chemical_formula_structural [Pm2(Zn2Ag3)3]
_chemical_formula_sum '[Pm2 Zn6 Ag9]'
_cell_volume [357.3331]
_cell_formula_units_Z [1]
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  2  0.0000  0.0000  0.3340  1
  Zn  Zn1  4  0.3333  0.6667  0.6657  1
  Zn  Zn2  2  0.3333  0.6667  0.0000  1
  Ag  Ag3  6  0.0000  0.5000  0.1668  1
  Ag  Ag4  3  0.0000  0.5000  0.5000  1
]