data_[Pr4Zn4Hg2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Pr  1.1300  1.8500  1.0600
  Zn  1.6500  1.3500  0.8800
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [P4/mbm]
_cell_length_a [7.4799]
_cell_length_b [7.4799]
_cell_length_c [4.4822]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [127]
_chemical_formula_structural [Pr2Zn2Hg]
_chemical_formula_sum '[Pr4 Zn4 Hg2]'
_cell_volume [250.7762]
_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
[
  Pr  Pr0  4  0.1717  0.3283  0.5000  1.0
  Zn  Zn1  4  0.1250  0.6250  0.0000  1.0
  Hg  Hg2  2  0.0000  0.0000  0.0000  1.0
]