data_Na2CrPb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.06
_cell_length_b   6.06
_cell_length_c   4.74
_cell_angle_alpha   111.85
_cell_angle_beta   111.85
_cell_angle_gamma   38.98
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2CrPb
_chemical_formula_sum   'Na2 Cr1 Pb1'
_cell_volume   100.59
_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  0.49  0.0  0.29  1.0
  Na  Na2  1  0.06  0.0  0.07  1.0
  Cr  Cr0  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.77  0.0  0.18  1.0

data_Na2CrPb
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.04
_cell_length_b   4.74
_cell_length_c   6.06
_cell_angle_alpha   111.85
_cell_angle_beta   109.49
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2CrPb
_chemical_formula_sum   'Na2 Cr1 Pb1'
_cell_volume   100.59
_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  Na0  1  0.0  0.07  0.06  1.0
  Na  Na1  1  0.0  0.29  0.49  1.0
  Cr  Cr2  1  0.0  0.0  0.0  1.0
  Pb  Pb3  1  0.0  0.18  0.77  1.0

Na Na Cr Pb