The structure described by La4PbBi2 crystallizes in the tetragonal I-42d space group. La(1) is bonded in a 6-coordinate geometry to two equivalent Pb(1) and four equivalent Bi(1) atoms. Pb(1) is bonded to eight equivalent La(1) atoms to form distorted PbLa8 hexagonal bipyramids that share corners with eight equivalent Bi(1)La8 hexagonal bipyramids, edges with four equivalent Pb(1)La8 hexagonal bipyramids, and faces with eight equivalent Bi(1)La8 hexagonal bipyramids. Bi(1) is bonded to eight equivalent La(1) atoms to form distorted BiLa8 hexagonal bipyramids that share corners with four equivalent Pb(1)La8 hexagonal bipyramids, corners with four equivalent Bi(1)La8 hexagonal bipyramids, edges with four equivalent Bi(1)La8 hexagonal bipyramids, faces with four equivalent Pb(1)La8 hexagonal bipyramids, and faces with four equivalent Bi(1)La8 hexagonal bipyramids. is represented by the CIF card [CIF]
data_La4Bi2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.572
_cell_length_b   8.572
_cell_length_c   8.572
_cell_angle_alpha   109.560
_cell_angle_beta   109.560
_cell_angle_gamma   109.294
_symmetry_Int_Tables_number   1
_cell_volume   484.897
_cell_formula_units_Z   2
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
  La  La0  1  0.981  0.374  0.251  1.0
  La  La1  1  0.123  0.730  0.749  1.0
  La  La2  1  0.627  0.876  0.107  1.0
  La  La3  1  0.769  0.520  0.893  1.0
  La  La4  1  0.124  0.231  0.751  1.0
  La  La5  1  0.480  0.373  0.249  1.0
  La  La6  1  0.626  0.877  0.607  1.0
  La  La7  1  0.270  0.019  0.393  1.0
  Bi  Bi8  1  0.375  0.501  0.626  1.0
  Bi  Bi9  1  0.875  0.749  0.374  1.0
  Bi  Bi10  1  0.499  0.125  0.874  1.0
  Bi  Bi11  1  0.251  0.625  0.126  1.0
  Pb  Pb12  1  0.750  0.250  0.500  1.0
  Pb  Pb13  1  0.000  0.000  0.000  1.0
[/CIF]
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The structure described by La4PbBi2 crystallizes in the tetragonal I-42d space group. La(1) is bonded in a 6-coordinate geometry to two equivalent Pb(1) and four equivalent Bi(1) atoms. Pb(1) is bonded to eight equivalent La(1) atoms to form distorted PbLa8 hexagonal bipyramids that share corners with eight equivalent Bi(1)La8 hexagonal bipyramids, edges with four equivalent Pb(1)La8 hexagonal bipyramids, and faces with eight equivalent Bi(1)La8 hexagonal bipyramids. Bi(1) is bonded to eight equivalent La(1) atoms to form distorted BiLa8 hexagonal bipyramids that share corners with four equivalent Pb(1)La8 hexagonal bipyramids, corners with four equivalent Bi(1)La8 hexagonal bipyramids, edges with four equivalent Bi(1)La8 hexagonal bipyramids, faces with four equivalent Pb(1)La8 hexagonal bipyramids, and faces with four equivalent Bi(1)La8 hexagonal bipyramids. is represented by the CIF card [CIF]
data_La4Bi2Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.572
_cell_length_b   8.572
_cell_length_c   8.572
_cell_angle_alpha   109.560
_cell_angle_beta   109.560
_cell_angle_gamma   109.294
_symmetry_Int_Tables_number   1
_cell_volume   484.897
_cell_formula_units_Z   2
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
  La  La0  1  0.981  0.374  0.251  1.0
  La  La1  1  0.123  0.730  0.749  1.0
  La  La2  1  0.627  0.876  0.107  1.0
  La  La3  1  0.769  0.520  0.893  1.0
  La  La4  1  0.124  0.231  0.751  1.0
  La  La5  1  0.480  0.373  0.249  1.0
  La  La6  1  0.626  0.877  0.607  1.0
  La  La7  1  0.270  0.019  0.393  1.0
  Bi  Bi8  1  0.375  0.501  0.626  1.0
  Bi  Bi9  1  0.875  0.749  0.374  1.0
  Bi  Bi10  1  0.499  0.125  0.874  1.0
  Bi  Bi11  1  0.251  0.625  0.126  1.0
  Pb  Pb12  1  0.750  0.250  0.500  1.0
  Pb  Pb13  1  0.000  0.000  0.000  1.0
[/CIF]
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