data_NaIr2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.13
_cell_length_b   4.79
_cell_length_c   4.81
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaIr2Pb
_chemical_formula_sum   'Na1 Ir2 Pb1'
_cell_volume   72.14
_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  Na2  1  0.0  0.0  0.0  1.0
  Ir  Ir0  1  0.56  0.4  0.0  1.0
  Ir  Ir1  1  0.0  0.4  0.41  1.0
  Pb  Pb3  1  0.56  0.0  0.41  1.0

data_NaIr2Pb
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.13
_cell_length_b   4.79
_cell_length_c   4.81
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaIr2Pb
_chemical_formula_sum   'Na1 Ir2 Pb1'
_cell_volume   72.14
_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  0.0  0.0  1.0
  Ir  Ir1  1  -0.0  0.4  0.41  1.0
  Ir  Ir2  1  0.56  0.4  0.0  1.0
  Pb  Pb3  1  0.56  0.0  0.41  1.0

Na Ir Ir Pb
NaIr2Pb crystallizes in the triclinic P1 space group. Na(1) is bonded in a 4-coordinate geometry to two equivalent Ir(1), three equivalent Ir(2), and two equivalent Pb(1) atoms. There is one shorter (2.34 Å) and one longer (2.59 Å) Na(1)-Ir(1) bond length. There are a spread of Na(1)-Ir(2) bond distances ranging from 2.73-3.49 Å. There is one shorter (2.39 Å) and one longer (2.63 Å) Na(1)-Pb(1) bond length. There are two inequivalent Ir sites. In the first Ir site, Ir(1) is bonded in a 2-coordinate geometry to two equivalent Na(1) and four equivalent Ir(2) atoms. There are a spread of Ir(1)-Ir(2) bond distances ranging from 2.39-3.36 Å. In the second Ir site, Ir(2) is bonded in a 13-coordinate geometry to three equivalent Na(1), two equivalent Ir(2), four equivalent Ir(1), and four equivalent Pb(1) atoms. Both Ir(2)-Ir(2) bond lengths are 3.13 Å. There are a spread of Ir(2)-Pb(1) bond distances ranging from 2.34-3.39 Å. Pb(1) is bonded in a 1-coordinate geometry to two equivalent Na(1) and four equivalent Ir(2) atoms.