data_[Ca1La1Nd1Hg1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Ca  1.0000  1.8000  1.1400
  La  1.1000  1.9500  1.1720
  Nd  1.1400  1.8500  1.2765
  Hg  2.0000  1.5000  1.2450
]
_symmetry_space_group_name_H-M [P4mm]
_cell_length_a [3.7294]
_cell_length_b [3.7294]
_cell_length_c [9.5366]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [99]
_chemical_formula_structural [CaLaNdHg]
_chemical_formula_sum '[Ca1 La1 Nd1 Hg1]'
_cell_volume [132.6403]
_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
[
  Ca  Ca0  1  0.5000  0.5000  0.7713  1
  La  La1  1  0.0000  0.0000  0.0876  1
  Nd  Nd2  1  0.5000  0.5000  0.3578  1
  Hg  Hg3  1  0.0000  0.0000  0.5681  1
]