The material described by Pb2O3 crystallizes in the monoclinic C2/m space group. There are three inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form a mixture of corner and edge-sharing PbO6 octahedra. The corner-sharing octahedral tilt angles are 33°. In the second Pb site, Pb(2) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. In the third Pb site, Pb(3) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Pb(1) atoms. In the second O site, O(2) is bonded to one Pb(2), one Pb(3), and two equivalent Pb(1) atoms to form a mixture of corner and edge-sharing OPb4 tetrahedra. is represented by the CIF file [CIF]
data_Pb2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.421
_cell_length_b   5.421
_cell_length_c   5.736
_cell_angle_alpha   89.197
_cell_angle_beta   89.197
_cell_angle_gamma   101.011
_symmetry_Int_Tables_number   1
_cell_volume   165.406
_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
  Pb  Pb0  1  0.000  0.500  0.000  1.0
  Pb  Pb1  1  0.000  0.000  0.500  1.0
  Pb  Pb2  1  0.500  0.500  0.500  1.0
  Pb  Pb3  1  0.500  0.000  0.000  1.0
  O  O4  1  0.250  0.250  0.109  1.0
  O  O5  1  0.253  0.760  0.745  1.0
  O  O6  1  0.747  0.240  0.255  1.0
  O  O7  1  0.750  0.750  0.891  1.0
  O  O8  1  0.240  0.747  0.255  1.0
  O  O9  1  0.760  0.253  0.745  1.0
[/CIF]
.
The material described by Pb2O3 crystallizes in the monoclinic C2/m space group. There are three inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form a mixture of corner and edge-sharing PbO6 octahedra. The corner-sharing octahedral tilt angles are 33°. In the second Pb site, Pb(2) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. In the third Pb site, Pb(3) is bonded in a 4-coordinate geometry to four equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Pb(1) atoms. In the second O site, O(2) is bonded to one Pb(2), one Pb(3), and two equivalent Pb(1) atoms to form a mixture of corner and edge-sharing OPb4 tetrahedra. is represented by the CIF file [CIF]
data_Pb2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.421
_cell_length_b   5.421
_cell_length_c   5.736
_cell_angle_alpha   89.197
_cell_angle_beta   89.197
_cell_angle_gamma   101.011
_symmetry_Int_Tables_number   1
_cell_volume   165.406
_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
  Pb  Pb0  1  0.000  0.500  0.000  1.0
  Pb  Pb1  1  0.000  0.000  0.500  1.0
  Pb  Pb2  1  0.500  0.500  0.500  1.0
  Pb  Pb3  1  0.500  0.000  0.000  1.0
  O  O4  1  0.250  0.250  0.109  1.0
  O  O5  1  0.253  0.760  0.745  1.0
  O  O6  1  0.747  0.240  0.255  1.0
  O  O7  1  0.750  0.750  0.891  1.0
  O  O8  1  0.240  0.747  0.255  1.0
  O  O9  1  0.760  0.253  0.745  1.0
[/CIF]
.