data_[Pm1Zn6Ag4]
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 [P-6m2]
_cell_length_a [7.4195]
_cell_length_b [7.4195]
_cell_length_c [4.2577]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [187]
_chemical_formula_structural [Pm(Zn3Ag2)2]
_chemical_formula_sum '[Pm1 Zn6 Ag4]'
_cell_volume [202.9816]
_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  1  0.0000  0.0000  0.0000  1
  Zn  Zn1  3  0.2063  0.4126  0.5000  1
  Zn  Zn2  3  0.5390  0.0779  0.0000  1
  Ag  Ag3  3  0.3978  0.1989  0.5000  1
  Ag  Ag4  1  0.3333  0.6667  0.0000  1
]