The crystal structure described by KPbO2 crystallizes in the triclinic P-1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(2), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the second K site, K(2) is bonded to one O(3), one O(6), two equivalent O(2), and two equivalent O(7) atoms to form distorted KO6 octahedra that share corners with three equivalent Pb(4)O6 octahedra,  an edgeedge with one Pb(4)O6 octahedra, edges with two equivalent K(2)O6 octahedra, and edges with two equivalent Pb(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-17°. In the third K site, K(3) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the fourth K site, K(4) is bonded to one O(5), one O(8), two equivalent O(1), and two equivalent O(4) atoms to form distorted KO6 octahedra that share corners with three equivalent Pb(3)O6 octahedra,  an edgeedge with one Pb(3)O6 octahedra, edges with two equivalent K(4)O6 octahedra, and edges with two equivalent Pb(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-16°. There are four inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(8) atom. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one O(2), one O(3), and one O(6) atom. In the third Pb site, Pb(3) is bonded to one O(1), one O(3), one O(4), one O(6), one O(7), and one O(8) atom to form PbO6 octahedra that share corners with three equivalent K(4)O6 octahedra,  an edgeedge with one K(4)O6 octahedra, edges with two equivalent K(2)O6 octahedra, and edges with two equivalent Pb(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-16°. In the fourth Pb site, Pb(4) is bonded to one O(1), one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form PbO6 octahedra that share corners with three equivalent K(2)O6 octahedra,  an edgeedge with one K(2)O6 octahedra, edges with two equivalent K(4)O6 octahedra, and edges with two equivalent Pb(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-17°. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one K(3), two equivalent K(4), one Pb(3), and one Pb(4) atom to form OK3Pb2 square pyramids that share corners with two equivalent O(4)K4Pb2 octahedra, corners with two equivalent O(8)K2Pb3 square pyramids, corners with two equivalent O(5)K3Pb2 square pyramids, corners with three equivalent O(3)K2Pb3 square pyramids,  an edgeedge with one O(2)K4Pb2 octahedra, edges with two equivalent O(4)K4Pb2 octahedra,  an edgeedge with one O(8)K2Pb3 square pyramid,  an edgeedge with one O(1)K3Pb2 square pyramid,  an edgeedge with one O(5)K3Pb2 square pyramid,  an edgeedge with one O(6)K3Pb2 square pyramid, and  an edgeedge with one O(7)K3Pb2 square pyramid. The corner-sharing octahedral tilt angles range from 14-18°. In the second O site, O(2) is bonded to one K(1), one K(3), two equivalent K(2), one Pb(2), and one Pb(4) atom to form distorted OK4Pb2 octahedra that share  a cornercorner with one O(3)K2Pb3 square pyramid,  a cornercorner with one O(6)K3Pb2 square pyramid, corners with two equivalent O(7)K3Pb2 square pyramids, corners with three equivalent O(5)K3Pb2 square pyramids,  an edgeedge with one O(2)K4Pb2 octahedra,  an edgeedge with one O(4)K4Pb2 octahedra,  an edgeedge with one O(8)K2Pb3 square pyramid,  an edgeedge with one O(1)K3Pb2 square pyramid, edges with two equivalent O(3)K2Pb3 square pyramids, edges with two equivalent O(6)K3Pb2 square pyramids, and edges with two equivalent O(7)K3Pb2 square pyramids. In the third O site, O(3) is bonded to one K(2), one K(3), one Pb(2), one Pb(3), and one Pb(4) atom to form OK2Pb3 square pyramids that share  a cornercorner with one O(2)K4Pb2 octahedra, corners with two equivalent O(6)K3Pb2 square pyramids, corners with two equivalent O(7)K3Pb2 square pyramids, corners with three equivalent O(1)K3Pb2 square pyramids,  an edgeedge with one O(4)K4Pb2 octahedra, edges with two equivalent O(2)K4Pb2 octahedra,  an edgeedge with one O(8)K2Pb3 square pyramid,  an edgeedge with one O(5)K3Pb2 square pyramid,  an edgeedge with one O(6)K3Pb2 square pyramid, and  an edgeedge with one O(7)K3Pb2 square pyramid. The corner-sharing octahedral tilt angles are 85°. In the fourth O site, O(4) is bonded to one K(1), one K(3), two equivalent K(4), one Pb(1), and one Pb(3) atom to form distorted OK4Pb2 octahedra that share  a cornercorner with one O(8)K2Pb3 square pyramid,  a cornercorner with one O(5)K3Pb2 square pyramid, corners with two equivalent O(1)K3Pb2 square pyramids, corners with three equivalent O(6)K3Pb2 square pyramids,  an edgeedge with one O(2)K4Pb2 octahedra,  an edgeedge with one O(4)K4Pb2 octahedra,  an edgeedge with one O(3)K2Pb3 square pyramid,  an edgeedge with one O(7)K3Pb2 square pyramid, edges with two equivalent O(8)K2Pb3 square pyramids, edges with two equivalent O(1)K3Pb2 square pyramids, and edges with two equivalent O(5)K3Pb2 square pyramids. In the fifth O site, O(5) is bonded to one K(1), one K(3), one K(4), one Pb(1), and one Pb(4) atom to form distorted OK3Pb2 square pyramids that share  a cornercorner with one O(4)K4Pb2 octahedra, corners with three equivalent O(2)K4Pb2 octahedra, corners with two equivalent O(8)K2Pb3 square pyramids, corners with two equivalent O(1)K3Pb2 square pyramids, edges with two equivalent O(4)K4Pb2 octahedra,  an edgeedge with one O(3)K2Pb3 square pyramid,  an edgeedge with one O(8)K2Pb3 square pyramid,  an edgeedge with one O(1)K3Pb2 square pyramid,  an edgeedge with one O(6)K3Pb2 square pyramid, and  an edgeedge with one O(7)K3Pb2 square pyramid. The corner-sharing octahedral tilt angles range from 9-84°. In the sixth O site, O(6) is bonded to one K(1), one K(2), one K(3), one Pb(2), and one Pb(3) atom to form distorted OK3Pb2 square pyramids that share  a cornercorner with one O(2)K4Pb2 octahedra, corners with three equivalent O(4)K4Pb2 octahedra, corners with two equivalent O(3)K2Pb3 square pyramids, corners with two equivalent O(7)K3Pb2 square pyramids, edges with two equivalent O(2)K4Pb2 octahedra,  an edgeedge with one O(3)K2Pb3 square pyramid,  an edgeedge with one O(8)K2Pb3 square pyramid,  an edgeedge with one O(1)K3Pb2 square pyramid,  an edgeedge with one O(5)K3Pb2 square pyramid, and  an edgeedge with one O(7)K3Pb2 square pyramid. The corner-sharing octahedral tilt angles range from 9-84°. In the seventh O site, O(7) is bonded to one K(1), two equivalent K(2), one Pb(3), and one Pb(4) atom to form OK3Pb2 square pyramids that share corners with two equivalent O(2)K4Pb2 octahedra, corners with two equivalent O(3)K2Pb3 square pyramids, corners with two equivalent O(6)K3Pb2 square pyramids, corners with three equivalent O(8)K2Pb3 square pyramids,  an edgeedge with one O(4)K4Pb2 octahedra, edges with two equivalent O(2)K4Pb2 octahedra,  an edgeedge with one O(3)K2Pb3 square pyramid,  an edgeedge with one O(1)K3Pb2 square pyramid,  an edgeedge with one O(5)K3Pb2 square pyramid,  an edgeedge with one O(6)K3Pb2 square pyramid, and  an edgeedge with one O(7)K3Pb2 square pyramid. The corner-sharing octahedral tilt angles range from 14-18°. In the eighth O site, O(8) is bonded to one K(1), one K(4), one Pb(1), one Pb(3), and one Pb(4) atom to form OK2Pb3 square pyramids that share  a cornercorner with one O(4)K4Pb2 octahedra, corners with two equivalent O(1)K3Pb2 square pyramids, corners with two equivalent O(5)K3Pb2 square pyramids, corners with three equivalent O(7)K3Pb2 square pyramids,  an edgeedge with one O(2)K4Pb2 octahedra, edges with two equivalent O(4)K4Pb2 octahedra,  an edgeedge with one O(3)K2Pb3 square pyramid,  an edgeedge with one O(1)K3Pb2 square pyramid,  an edgeedge with one O(5)K3Pb2 square pyramid, and  an edgeedge with one O(6)K3Pb2 square pyramid. The corner-sharing octahedral tilt angles are 85°. is represented by the Crystallographic Information File (CIF) [CIF]
data_KPbO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.440
_cell_length_b   7.002
_cell_length_c   7.508
_cell_angle_alpha   117.371
_cell_angle_beta   93.933
_cell_angle_gamma   105.175
_symmetry_Int_Tables_number   1
_cell_volume   283.055
_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
  K  K0  1  0.469  0.248  0.994  1.0
  K  K1  1  0.024  0.748  0.748  1.0
  K  K2  1  0.531  0.752  0.006  1.0
  K  K3  1  0.976  0.252  0.252  1.0
  O  O4  1  0.690  0.492  0.402  1.0
  O  O5  1  0.310  0.508  0.598  1.0
  O  O6  1  0.276  0.027  0.196  1.0
  O  O7  1  0.724  0.973  0.804  1.0
  O  O8  1  0.284  0.976  0.567  1.0
  O  O9  1  0.716  0.024  0.433  1.0
  O  O10  1  0.712  0.432  0.794  1.0
  O  O11  1  0.288  0.568  0.206  1.0
  Pb  Pb12  1  0.943  0.234  0.744  1.0
  Pb  Pb13  1  0.057  0.766  0.256  1.0
  Pb  Pb14  1  0.508  0.741  0.501  1.0
  Pb  Pb15  1  0.492  0.259  0.499  1.0
[/CIF]
.
The crystal structure described by KPbO2 crystallizes in the triclinic P-1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(2), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the second K site, K(2) is bonded to one O(3), one O(6), two equivalent O(2), and two equivalent O(7) atoms to form distorted KO6 octahedra that share corners with three equivalent Pb(4)O6 octahedra,  an edgeedge with one Pb(4)O6 octahedra, edges with two equivalent K(2)O6 octahedra, and edges with two equivalent Pb(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-17°. In the third K site, K(3) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the fourth K site, K(4) is bonded to one O(5), one O(8), two equivalent O(1), and two equivalent O(4) atoms to form distorted KO6 octahedra that share corners with three equivalent Pb(3)O6 octahedra,  an edgeedge with one Pb(3)O6 octahedra, edges with two equivalent K(4)O6 octahedra, and edges with two equivalent Pb(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-16°. There are four inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 3-coordinate geometry to one O(4), one O(5), and one O(8) atom. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one O(2), one O(3), and one O(6) atom. In the third Pb site, Pb(3) is bonded to one O(1), one O(3), one O(4), one O(6), one O(7), and one O(8) atom to form PbO6 octahedra that share corners with three equivalent K(4)O6 octahedra,  an edgeedge with one K(4)O6 octahedra, edges with two equivalent K(2)O6 octahedra, and edges with two equivalent Pb(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-16°. In the fourth Pb site, Pb(4) is bonded to one O(1), one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form PbO6 octahedra that share corners with three equivalent K(2)O6 octahedra,  an edgeedge with one K(2)O6 octahedra, edges with two equivalent K(4)O6 octahedra, and edges with two equivalent Pb(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 10-17°. There are eight inequivalent O sites. In the first O site, O(1) is bonded to one K(3), two equivalent K(4), one Pb(3), and one Pb(4) atom to form OK3Pb2 square pyramids that share corners with two equivalent O(4)K4Pb2 octahedra, corners with two equivalent O(8)K2Pb3 square pyramids, corners with two equivalent O(5)K3Pb2 square pyramids, corners with three equivalent O(3)K2Pb3 square pyramids,  an edgeedge with one O(2)K4Pb2 octahedra, edges with two equivalent O(4)K4Pb2 octahedra,  an edgeedge with one O(8)K2Pb3 square pyramid,  an edgeedge with one O(1)K3Pb2 square pyramid,  an edgeedge with one O(5)K3Pb2 square pyramid,  an edgeedge with one O(6)K3Pb2 square pyramid, and  an edgeedge with one O(7)K3Pb2 square pyramid. The corner-sharing octahedral tilt angles range from 14-18°. In the second O site, O(2) is bonded to one K(1), one K(3), two equivalent K(2), one Pb(2), and one Pb(4) atom to form distorted OK4Pb2 octahedra that share  a cornercorner with one O(3)K2Pb3 square pyramid,  a cornercorner with one O(6)K3Pb2 square pyramid, corners with two equivalent O(7)K3Pb2 square pyramids, corners with three equivalent O(5)K3Pb2 square pyramids,  an edgeedge with one O(2)K4Pb2 octahedra,  an edgeedge with one O(4)K4Pb2 octahedra,  an edgeedge with one O(8)K2Pb3 square pyramid,  an edgeedge with one O(1)K3Pb2 square pyramid, edges with two equivalent O(3)K2Pb3 square pyramids, edges with two equivalent O(6)K3Pb2 square pyramids, and edges with two equivalent O(7)K3Pb2 square pyramids. In the third O site, O(3) is bonded to one K(2), one K(3), one Pb(2), one Pb(3), and one Pb(4) atom to form OK2Pb3 square pyramids that share  a cornercorner with one O(2)K4Pb2 octahedra, corners with two equivalent O(6)K3Pb2 square pyramids, corners with two equivalent O(7)K3Pb2 square pyramids, corners with three equivalent O(1)K3Pb2 square pyramids,  an edgeedge with one O(4)K4Pb2 octahedra, edges with two equivalent O(2)K4Pb2 octahedra,  an edgeedge with one O(8)K2Pb3 square pyramid,  an edgeedge with one O(5)K3Pb2 square pyramid,  an edgeedge with one O(6)K3Pb2 square pyramid, and  an edgeedge with one O(7)K3Pb2 square pyramid. The corner-sharing octahedral tilt angles are 85°. In the fourth O site, O(4) is bonded to one K(1), one K(3), two equivalent K(4), one Pb(1), and one Pb(3) atom to form distorted OK4Pb2 octahedra that share  a cornercorner with one O(8)K2Pb3 square pyramid,  a cornercorner with one O(5)K3Pb2 square pyramid, corners with two equivalent O(1)K3Pb2 square pyramids, corners with three equivalent O(6)K3Pb2 square pyramids,  an edgeedge with one O(2)K4Pb2 octahedra,  an edgeedge with one O(4)K4Pb2 octahedra,  an edgeedge with one O(3)K2Pb3 square pyramid,  an edgeedge with one O(7)K3Pb2 square pyramid, edges with two equivalent O(8)K2Pb3 square pyramids, edges with two equivalent O(1)K3Pb2 square pyramids, and edges with two equivalent O(5)K3Pb2 square pyramids. In the fifth O site, O(5) is bonded to one K(1), one K(3), one K(4), one Pb(1), and one Pb(4) atom to form distorted OK3Pb2 square pyramids that share  a cornercorner with one O(4)K4Pb2 octahedra, corners with three equivalent O(2)K4Pb2 octahedra, corners with two equivalent O(8)K2Pb3 square pyramids, corners with two equivalent O(1)K3Pb2 square pyramids, edges with two equivalent O(4)K4Pb2 octahedra,  an edgeedge with one O(3)K2Pb3 square pyramid,  an edgeedge with one O(8)K2Pb3 square pyramid,  an edgeedge with one O(1)K3Pb2 square pyramid,  an edgeedge with one O(6)K3Pb2 square pyramid, and  an edgeedge with one O(7)K3Pb2 square pyramid. The corner-sharing octahedral tilt angles range from 9-84°. In the sixth O site, O(6) is bonded to one K(1), one K(2), one K(3), one Pb(2), and one Pb(3) atom to form distorted OK3Pb2 square pyramids that share  a cornercorner with one O(2)K4Pb2 octahedra, corners with three equivalent O(4)K4Pb2 octahedra, corners with two equivalent O(3)K2Pb3 square pyramids, corners with two equivalent O(7)K3Pb2 square pyramids, edges with two equivalent O(2)K4Pb2 octahedra,  an edgeedge with one O(3)K2Pb3 square pyramid,  an edgeedge with one O(8)K2Pb3 square pyramid,  an edgeedge with one O(1)K3Pb2 square pyramid,  an edgeedge with one O(5)K3Pb2 square pyramid, and  an edgeedge with one O(7)K3Pb2 square pyramid. The corner-sharing octahedral tilt angles range from 9-84°. In the seventh O site, O(7) is bonded to one K(1), two equivalent K(2), one Pb(3), and one Pb(4) atom to form OK3Pb2 square pyramids that share corners with two equivalent O(2)K4Pb2 octahedra, corners with two equivalent O(3)K2Pb3 square pyramids, corners with two equivalent O(6)K3Pb2 square pyramids, corners with three equivalent O(8)K2Pb3 square pyramids,  an edgeedge with one O(4)K4Pb2 octahedra, edges with two equivalent O(2)K4Pb2 octahedra,  an edgeedge with one O(3)K2Pb3 square pyramid,  an edgeedge with one O(1)K3Pb2 square pyramid,  an edgeedge with one O(5)K3Pb2 square pyramid,  an edgeedge with one O(6)K3Pb2 square pyramid, and  an edgeedge with one O(7)K3Pb2 square pyramid. The corner-sharing octahedral tilt angles range from 14-18°. In the eighth O site, O(8) is bonded to one K(1), one K(4), one Pb(1), one Pb(3), and one Pb(4) atom to form OK2Pb3 square pyramids that share  a cornercorner with one O(4)K4Pb2 octahedra, corners with two equivalent O(1)K3Pb2 square pyramids, corners with two equivalent O(5)K3Pb2 square pyramids, corners with three equivalent O(7)K3Pb2 square pyramids,  an edgeedge with one O(2)K4Pb2 octahedra, edges with two equivalent O(4)K4Pb2 octahedra,  an edgeedge with one O(3)K2Pb3 square pyramid,  an edgeedge with one O(1)K3Pb2 square pyramid,  an edgeedge with one O(5)K3Pb2 square pyramid, and  an edgeedge with one O(6)K3Pb2 square pyramid. The corner-sharing octahedral tilt angles are 85°. is represented by the Crystallographic Information File (CIF) [CIF]
data_KPbO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.440
_cell_length_b   7.002
_cell_length_c   7.508
_cell_angle_alpha   117.371
_cell_angle_beta   93.933
_cell_angle_gamma   105.175
_symmetry_Int_Tables_number   1
_cell_volume   283.055
_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
  K  K0  1  0.469  0.248  0.994  1.0
  K  K1  1  0.024  0.748  0.748  1.0
  K  K2  1  0.531  0.752  0.006  1.0
  K  K3  1  0.976  0.252  0.252  1.0
  O  O4  1  0.690  0.492  0.402  1.0
  O  O5  1  0.310  0.508  0.598  1.0
  O  O6  1  0.276  0.027  0.196  1.0
  O  O7  1  0.724  0.973  0.804  1.0
  O  O8  1  0.284  0.976  0.567  1.0
  O  O9  1  0.716  0.024  0.433  1.0
  O  O10  1  0.712  0.432  0.794  1.0
  O  O11  1  0.288  0.568  0.206  1.0
  Pb  Pb12  1  0.943  0.234  0.744  1.0
  Pb  Pb13  1  0.057  0.766  0.256  1.0
  Pb  Pb14  1  0.508  0.741  0.501  1.0
  Pb  Pb15  1  0.492  0.259  0.499  1.0
[/CIF]
.