The crystal structure described by Pb2O3 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to one O(1), two equivalent O(2), and three equivalent O(3) atoms to form a mixture of edge and corner-sharing PbO6 octahedra. The corner-sharing octahedral tilt angles range from 48-56°. In the second Pb site, Pb(2) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Pb(1) and two equivalent Pb(2) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Pb(1) and two equivalent Pb(2) atoms. In the third O site, O(3) is bonded in a trigonal planar geometry to three equivalent Pb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pb2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.681
_cell_length_b   7.601
_cell_length_c   7.851
_cell_angle_alpha   67.073
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   312.204
_cell_formula_units_Z   4
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  0.754  0.089  0.883  1.0
  Pb  Pb1  1  0.254  0.911  0.617  1.0
  Pb  Pb2  1  0.246  0.911  0.117  1.0
  Pb  Pb3  1  0.746  0.089  0.383  1.0
  Pb  Pb4  1  0.742  0.612  0.854  1.0
  Pb  Pb5  1  0.242  0.388  0.646  1.0
  Pb  Pb6  1  0.258  0.388  0.146  1.0
  Pb  Pb7  1  0.758  0.612  0.354  1.0
  O  O8  1  0.627  0.369  0.735  1.0
  O  O9  1  0.127  0.631  0.765  1.0
  O  O10  1  0.373  0.631  0.265  1.0
  O  O11  1  0.873  0.369  0.235  1.0
  O  O12  1  0.909  0.809  0.050  1.0
  O  O13  1  0.409  0.191  0.450  1.0
  O  O14  1  0.091  0.191  0.950  1.0
  O  O15  1  0.591  0.809  0.550  1.0
  O  O16  1  0.433  0.934  0.860  1.0
  O  O17  1  0.933  0.066  0.640  1.0
  O  O18  1  0.567  0.066  0.140  1.0
  O  O19  1  0.067  0.934  0.360  1.0
[/CIF]
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The crystal structure described by Pb2O3 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to one O(1), two equivalent O(2), and three equivalent O(3) atoms to form a mixture of edge and corner-sharing PbO6 octahedra. The corner-sharing octahedral tilt angles range from 48-56°. In the second Pb site, Pb(2) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(2) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Pb(1) and two equivalent Pb(2) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Pb(1) and two equivalent Pb(2) atoms. In the third O site, O(3) is bonded in a trigonal planar geometry to three equivalent Pb(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pb2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.681
_cell_length_b   7.601
_cell_length_c   7.851
_cell_angle_alpha   67.073
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   312.204
_cell_formula_units_Z   4
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  0.754  0.089  0.883  1.0
  Pb  Pb1  1  0.254  0.911  0.617  1.0
  Pb  Pb2  1  0.246  0.911  0.117  1.0
  Pb  Pb3  1  0.746  0.089  0.383  1.0
  Pb  Pb4  1  0.742  0.612  0.854  1.0
  Pb  Pb5  1  0.242  0.388  0.646  1.0
  Pb  Pb6  1  0.258  0.388  0.146  1.0
  Pb  Pb7  1  0.758  0.612  0.354  1.0
  O  O8  1  0.627  0.369  0.735  1.0
  O  O9  1  0.127  0.631  0.765  1.0
  O  O10  1  0.373  0.631  0.265  1.0
  O  O11  1  0.873  0.369  0.235  1.0
  O  O12  1  0.909  0.809  0.050  1.0
  O  O13  1  0.409  0.191  0.450  1.0
  O  O14  1  0.091  0.191  0.950  1.0
  O  O15  1  0.591  0.809  0.550  1.0
  O  O16  1  0.433  0.934  0.860  1.0
  O  O17  1  0.933  0.066  0.640  1.0
  O  O18  1  0.567  0.066  0.140  1.0
  O  O19  1  0.067  0.934  0.360  1.0
[/CIF]
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