data_Na2HgPd
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.46
_cell_length_b   3.46
_cell_length_c   8.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2HgPd
_chemical_formula_sum   'Na2 Hg1 Pd1'
_cell_volume   97.35
_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
  Na  Na1  1  0.0  0.0  0.72  1.0
  Na  Na2  1  0.73  0.73  0.52  1.0
  Hg  Hg0  1  0.73  0.73  0.74  1.0
  Pd  Pd3  1  0.0  0.0  0.33  1.0

data_Na2HgPd
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.9
_cell_length_b   4.9
_cell_length_c   8.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Na2HgPd
_chemical_formula_sum   'Na4 Hg2 Pd2'
_cell_volume   194.71
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Na  Na0  2  0.0  0.0  0.72  1.0
  Na  Na1  2  0.23  0.5  0.52  1.0
  Hg  Hg2  2  0.23  0.5  0.74  1.0
  Pd  Pd3  2  0.0  0.0  0.33  1.0

Na Na Hg Pd
Na Na Hg Pd 0 2 - - o 0 1 - - o 1 3 + + o 1 2 o o o 