data_Na2YIr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.08
_cell_length_b   5.24
_cell_length_c   5.56
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2YIr
_chemical_formula_sum   'Na2 Y1 Ir1'
_cell_volume   89.64
_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  0.54  0.62  1.0  1.0
  Na  Na2  1  0.54  0.62  0.56  1.0
  Y  Y3  1  0.0  0.0  0.0  1.0
  Ir  Ir0  1  0.0  0.0  0.78  1.0

data_Na2YIr
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.08
_cell_length_b   5.24
_cell_length_c   5.56
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2YIr
_chemical_formula_sum   'Na2 Y1 Ir1'
_cell_volume   89.64
_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  0.54  0.62  0.56  1.0
  Na  Na1  1  0.54  0.62  1.0  1.0
  Y  Y2  1  0.0  0.0  0.0  1.0
  Ir  Ir3  1  0.0  0.0  0.78  1.0

Na Na Y Ir
Na Na Y Ir 0 3 o + o 0 3 + + o 0 2 o + + 0 2 + + + 0 1 o o o 0 1 o o + 1 3 o + o 1 3 + + o 1 1 + o o 2 3 o o - 