The crystal structure described by K2PbO3 crystallizes in the orthorhombic Cmc2_1 space group. K(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. Pb(1) is bonded to one O(2) and four equivalent O(1) atoms to form distorted edge-sharing PbO5 trigonal bipyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent K(1) and two equivalent Pb(1) atoms to form a mixture of distorted edge, corner, and face-sharing OK4Pb2 octahedra. The corner-sharing octahedral tilt angles range from 37-52°. In the second O site, O(2) is bonded in a 5-coordinate geometry to four equivalent K(1) and one Pb(1) atom. is represented by the CIF file [CIF]
data_K2PbO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.018
_cell_length_b   6.362
_cell_length_c   6.362
_cell_angle_alpha   113.615
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   223.189
_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
  K  K0  1  0.265  0.477  0.803  1.0
  K  K1  1  0.765  0.197  0.523  1.0
  K  K2  1  0.765  0.523  0.197  1.0
  K  K3  1  0.265  0.803  0.477  1.0
  Pb  Pb4  1  0.731  0.900  0.900  1.0
  Pb  Pb5  1  0.231  0.100  0.100  1.0
  O  O6  1  0.995  0.835  0.101  1.0
  O  O7  1  0.495  0.165  0.899  1.0
  O  O8  1  0.495  0.899  0.165  1.0
  O  O9  1  0.995  0.101  0.835  1.0
  O  O10  1  0.124  0.377  0.377  1.0
  O  O11  1  0.624  0.623  0.623  1.0
[/CIF]
.
The crystal structure described by K2PbO3 crystallizes in the orthorhombic Cmc2_1 space group. K(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. Pb(1) is bonded to one O(2) and four equivalent O(1) atoms to form distorted edge-sharing PbO5 trigonal bipyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent K(1) and two equivalent Pb(1) atoms to form a mixture of distorted edge, corner, and face-sharing OK4Pb2 octahedra. The corner-sharing octahedral tilt angles range from 37-52°. In the second O site, O(2) is bonded in a 5-coordinate geometry to four equivalent K(1) and one Pb(1) atom. is represented by the CIF file [CIF]
data_K2PbO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.018
_cell_length_b   6.362
_cell_length_c   6.362
_cell_angle_alpha   113.615
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   223.189
_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
  K  K0  1  0.265  0.477  0.803  1.0
  K  K1  1  0.765  0.197  0.523  1.0
  K  K2  1  0.765  0.523  0.197  1.0
  K  K3  1  0.265  0.803  0.477  1.0
  Pb  Pb4  1  0.731  0.900  0.900  1.0
  Pb  Pb5  1  0.231  0.100  0.100  1.0
  O  O6  1  0.995  0.835  0.101  1.0
  O  O7  1  0.495  0.165  0.899  1.0
  O  O8  1  0.495  0.899  0.165  1.0
  O  O9  1  0.995  0.101  0.835  1.0
  O  O10  1  0.124  0.377  0.377  1.0
  O  O11  1  0.624  0.623  0.623  1.0
[/CIF]
.