The material described by Ce5Pb3O crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a distorted single-bond geometry to two equivalent Pb(2), three equivalent Pb(1), and one O(1) atom. In the second Ce site, Ce(2) is bonded to two equivalent Pb(2) and four equivalent Pb(1) atoms to form corner-sharing CePb6 octahedra. The corner-sharing octahedral tilt angles range from 0-44°. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 8-coordinate geometry to two equivalent Ce(2) and six equivalent Ce(1) atoms. In the second Pb site, Pb(2) is bonded in a distorted q6 geometry to two equivalent Ce(2) and eight equivalent Ce(1) atoms. O(1) is bonded in a tetrahedral geometry to four equivalent Ce(1) atoms. is represented by the CIF card [CIF]
data_Ce5Pb3O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.469
_cell_length_b   9.469
_cell_length_c   9.469
_cell_angle_alpha   125.270
_cell_angle_beta   125.271
_cell_angle_gamma   81.095
_symmetry_Int_Tables_number   1
_cell_volume   545.192
_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
  Ce  Ce0  1  0.000  0.199  0.500  1.0
  Ce  Ce1  1  0.801  0.301  0.802  1.0
  Ce  Ce2  1  0.500  0.000  0.802  1.0
  Ce  Ce3  1  0.500  1.000  0.198  1.0
  Ce  Ce4  1  1.000  0.801  0.500  1.0
  Ce  Ce5  1  0.500  0.500  1.000  1.0
  Ce  Ce6  1  0.199  0.699  0.198  1.0
  Ce  Ce7  1  0.699  0.500  0.500  1.0
  Ce  Ce8  1  0.301  0.500  0.500  1.0
  Ce  Ce9  1  0.000  0.000  0.000  1.0
  Pb  Pb10  1  0.852  0.352  0.204  1.0
  Pb  Pb11  1  0.148  0.648  0.796  1.0
  Pb  Pb12  1  0.352  0.148  0.500  1.0
  Pb  Pb13  1  0.750  0.750  0.000  1.0
  Pb  Pb14  1  0.648  0.852  0.500  1.0
  Pb  Pb15  1  0.250  0.250  0.000  1.0
  O  O16  1  0.750  0.250  0.500  1.0
  O  O17  1  0.250  0.750  0.500  1.0
[/CIF]
.
The material described by Ce5Pb3O crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a distorted single-bond geometry to two equivalent Pb(2), three equivalent Pb(1), and one O(1) atom. In the second Ce site, Ce(2) is bonded to two equivalent Pb(2) and four equivalent Pb(1) atoms to form corner-sharing CePb6 octahedra. The corner-sharing octahedral tilt angles range from 0-44°. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 8-coordinate geometry to two equivalent Ce(2) and six equivalent Ce(1) atoms. In the second Pb site, Pb(2) is bonded in a distorted q6 geometry to two equivalent Ce(2) and eight equivalent Ce(1) atoms. O(1) is bonded in a tetrahedral geometry to four equivalent Ce(1) atoms. is represented by the CIF card [CIF]
data_Ce5Pb3O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.469
_cell_length_b   9.469
_cell_length_c   9.469
_cell_angle_alpha   125.270
_cell_angle_beta   125.271
_cell_angle_gamma   81.095
_symmetry_Int_Tables_number   1
_cell_volume   545.192
_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
  Ce  Ce0  1  0.000  0.199  0.500  1.0
  Ce  Ce1  1  0.801  0.301  0.802  1.0
  Ce  Ce2  1  0.500  0.000  0.802  1.0
  Ce  Ce3  1  0.500  1.000  0.198  1.0
  Ce  Ce4  1  1.000  0.801  0.500  1.0
  Ce  Ce5  1  0.500  0.500  1.000  1.0
  Ce  Ce6  1  0.199  0.699  0.198  1.0
  Ce  Ce7  1  0.699  0.500  0.500  1.0
  Ce  Ce8  1  0.301  0.500  0.500  1.0
  Ce  Ce9  1  0.000  0.000  0.000  1.0
  Pb  Pb10  1  0.852  0.352  0.204  1.0
  Pb  Pb11  1  0.148  0.648  0.796  1.0
  Pb  Pb12  1  0.352  0.148  0.500  1.0
  Pb  Pb13  1  0.750  0.750  0.000  1.0
  Pb  Pb14  1  0.648  0.852  0.500  1.0
  Pb  Pb15  1  0.250  0.250  0.000  1.0
  O  O16  1  0.750  0.250  0.500  1.0
  O  O17  1  0.250  0.750  0.500  1.0
[/CIF]
.