data_[Tb1Dy1Cu1Hg1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Tb  1.1000  1.7500  0.9815
  Dy  1.2200  1.7500  1.1310
  Cu  1.9000  1.3500  0.8200
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [3.5597]
_cell_length_b [3.5597]
_cell_length_c [7.4176]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [TbDyCuHg]
_chemical_formula_sum '[Tb1 Dy1 Cu1 Hg1]'
_cell_volume [93.9921]
_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
[
  Tb  Tb0  1  0.5000  0.5000  0.1291  1
  Dy  Dy1  1  0.5000  0.5000  0.5846  1
  Cu  Cu2  1  0.0000  0.0000  0.3592  1
  Hg  Hg3  1  0.0000  0.0000  0.8551  1
]