The structure described by Ba7Pb17O24 crystallizes in the monoclinic Pm space group. There are five inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 6-coordinate geometry to two equivalent O(13), two equivalent O(3), and two equivalent O(6) atoms. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(12), one O(2), one O(4), one O(5), one O(7), and one O(8) atom. In the third Ba site, Ba(3) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(11), two equivalent O(8), and two equivalent O(9) atoms. In the fourth Ba site, Ba(4) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(13), one O(2), one O(3), one O(6), one O(7), and one O(9) atom. In the fifth Ba site, Ba(5) is bonded in a 5-coordinate geometry to one O(10), two equivalent O(13), and two equivalent O(3) atoms. There are eleven inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted T-shaped geometry to one O(5) and two equivalent O(1) atoms. In the second Pb site, Pb(2) is bonded in a distorted T-shaped geometry to one O(2), one O(3), and one O(4) atom. In the third Pb site, Pb(3) is bonded in a distorted T-shaped geometry to one O(5) and two equivalent O(8) atoms. In the fourth Pb site, Pb(4) is bonded in a 3-coordinate geometry to one O(4), one O(6), and one O(7) atom. In the fifth Pb site, Pb(5) is bonded in a distorted T-shaped geometry to one O(5) and two equivalent O(11) atoms. In the sixth Pb site, Pb(6) is bonded in a distorted T-shaped geometry to one O(12), one O(13), and one O(4) atom. In the seventh Pb site, Pb(7) is bonded in a distorted T-shaped geometry to one O(7), one O(8), and one O(9) atom. In the eighth Pb site, Pb(8) is bonded in a 3-coordinate geometry to one O(10) and two equivalent O(6) atoms. In the ninth Pb site, Pb(9) is bonded in a distorted T-shaped geometry to one O(1), one O(2), and one O(9) atom. In the tenth Pb site, Pb(10) is bonded in a 3-coordinate geometry to one O(10) and two equivalent O(3) atoms. In the eleventh Pb site, Pb(11) is bonded in a distorted T-shaped geometry to one O(11), one O(12), and one O(9) atom. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Ba(2), one Ba(3), one Pb(1), and one Pb(9) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Ba(2), one Ba(4), one Pb(2), and one Pb(9) atom. In the third O site, O(3) is bonded to one Ba(1), one Ba(4), one Ba(5), one Pb(10), and one Pb(2) atom to form distorted face-sharing OBa3Pb2 square pyramids. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Ba(2), one Pb(2), one Pb(4), and one Pb(6) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent Ba(2), one Pb(1), one Pb(3), and one Pb(5) atom. In the sixth O site, O(6) is bonded in a distorted see-saw-like geometry to one Ba(1), one Ba(4), one Pb(4), and one Pb(8) atom. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Ba(2), one Ba(4), one Pb(4), and one Pb(7) atom. In the eighth O site, O(8) is bonded in a distorted see-saw-like geometry to one Ba(2), one Ba(3), one Pb(3), and one Pb(7) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Ba(3), one Ba(4), one Pb(11), one Pb(7), and one Pb(9) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Ba(5), two equivalent Ba(4), one Pb(10), and one Pb(8) atom. In the eleventh O site, O(11) is bonded in a distorted see-saw-like geometry to one Ba(2), one Ba(3), one Pb(11), and one Pb(5) atom. In the twelfth O site, O(12) is bonded in a distorted see-saw-like geometry to one Ba(2), one Ba(4), one Pb(11), and one Pb(6) atom. In the thirteenth O site, O(13) is bonded in a distorted see-saw-like geometry to one Ba(1), one Ba(4), one Ba(5), and one Pb(6) atom. is represented by the CIF file [CIF]
data_Ba7Pb17O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   19.089
_cell_length_b   7.934
_cell_length_c   8.025
_cell_angle_alpha   61.097
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1064.000
_cell_formula_units_Z   1
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
  Ba  Ba0  1  0.000  0.333  0.365  1.0
  Ba  Ba1  1  0.334  0.336  0.332  1.0
  Ba  Ba2  1  0.666  0.336  0.332  1.0
  Ba  Ba3  1  0.500  0.666  0.667  1.0
  Ba  Ba4  1  0.831  0.667  0.658  1.0
  Ba  Ba5  1  0.169  0.667  0.658  1.0
  Ba  Ba6  1  0.000  0.334  0.873  1.0
  Pb  Pb7  1  0.500  0.655  0.161  1.0
  Pb  Pb8  1  0.166  0.651  0.157  1.0
  Pb  Pb9  1  0.834  0.651  0.157  1.0
  Pb  Pb10  1  0.500  0.160  0.183  1.0
  Pb  Pb11  1  0.830  0.163  0.179  1.0
  Pb  Pb12  1  0.170  0.163  0.179  1.0
  Pb  Pb13  1  0.500  0.183  0.648  1.0
  Pb  Pb14  1  0.830  0.186  0.647  1.0
  Pb  Pb15  1  0.170  0.186  0.647  1.0
  Pb  Pb16  1  0.335  0.831  0.349  1.0
  Pb  Pb17  1  0.665  0.831  0.349  1.0
  Pb  Pb18  1  0.000  0.831  0.356  1.0
  Pb  Pb19  1  0.333  0.818  0.839  1.0
  Pb  Pb20  1  0.000  0.811  0.854  1.0
  Pb  Pb21  1  0.667  0.818  0.839  1.0
  Pb  Pb22  1  0.666  0.349  0.816  1.0
  Pb  Pb23  1  0.334  0.349  0.816  1.0
  O  O24  1  0.416  0.602  0.999  1.0
  O  O25  1  0.750  0.605  0.993  1.0
  O  O26  1  0.081  0.584  0.003  1.0
  O  O27  1  0.250  0.605  0.993  1.0
  O  O28  1  0.584  0.602  0.999  1.0
  O  O29  1  0.919  0.584  0.003  1.0
  O  O30  1  0.173  0.335  0.329  1.0
  O  O31  1  0.827  0.335  0.329  1.0
  O  O32  1  0.500  0.336  0.331  1.0
  O  O33  1  0.918  0.020  0.373  1.0
  O  O34  1  0.250  0.994  0.396  1.0
  O  O35  1  0.417  0.001  0.397  1.0
  O  O36  1  0.750  0.994  0.396  1.0
  O  O37  1  0.583  0.001  0.397  1.0
  O  O38  1  0.082  0.020  0.373  1.0
  O  O39  1  0.334  0.669  0.666  1.0
  O  O40  1  0.000  0.690  0.662  1.0
  O  O41  1  0.666  0.669  0.666  1.0
  O  O42  1  0.582  0.398  0.604  1.0
  O  O43  1  0.253  0.401  0.599  1.0
  O  O44  1  0.418  0.398  0.604  1.0
  O  O45  1  0.912  0.391  0.614  1.0
  O  O46  1  0.088  0.391  0.614  1.0
  O  O47  1  0.747  0.401  0.599  1.0
[/CIF]
.
The structure described by Ba7Pb17O24 crystallizes in the monoclinic Pm space group. There are five inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 6-coordinate geometry to two equivalent O(13), two equivalent O(3), and two equivalent O(6) atoms. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(12), one O(2), one O(4), one O(5), one O(7), and one O(8) atom. In the third Ba site, Ba(3) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(11), two equivalent O(8), and two equivalent O(9) atoms. In the fourth Ba site, Ba(4) is bonded in a 8-coordinate geometry to one O(10), one O(12), one O(13), one O(2), one O(3), one O(6), one O(7), and one O(9) atom. In the fifth Ba site, Ba(5) is bonded in a 5-coordinate geometry to one O(10), two equivalent O(13), and two equivalent O(3) atoms. There are eleven inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted T-shaped geometry to one O(5) and two equivalent O(1) atoms. In the second Pb site, Pb(2) is bonded in a distorted T-shaped geometry to one O(2), one O(3), and one O(4) atom. In the third Pb site, Pb(3) is bonded in a distorted T-shaped geometry to one O(5) and two equivalent O(8) atoms. In the fourth Pb site, Pb(4) is bonded in a 3-coordinate geometry to one O(4), one O(6), and one O(7) atom. In the fifth Pb site, Pb(5) is bonded in a distorted T-shaped geometry to one O(5) and two equivalent O(11) atoms. In the sixth Pb site, Pb(6) is bonded in a distorted T-shaped geometry to one O(12), one O(13), and one O(4) atom. In the seventh Pb site, Pb(7) is bonded in a distorted T-shaped geometry to one O(7), one O(8), and one O(9) atom. In the eighth Pb site, Pb(8) is bonded in a 3-coordinate geometry to one O(10) and two equivalent O(6) atoms. In the ninth Pb site, Pb(9) is bonded in a distorted T-shaped geometry to one O(1), one O(2), and one O(9) atom. In the tenth Pb site, Pb(10) is bonded in a 3-coordinate geometry to one O(10) and two equivalent O(3) atoms. In the eleventh Pb site, Pb(11) is bonded in a distorted T-shaped geometry to one O(11), one O(12), and one O(9) atom. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted see-saw-like geometry to one Ba(2), one Ba(3), one Pb(1), and one Pb(9) atom. In the second O site, O(2) is bonded in a distorted see-saw-like geometry to one Ba(2), one Ba(4), one Pb(2), and one Pb(9) atom. In the third O site, O(3) is bonded to one Ba(1), one Ba(4), one Ba(5), one Pb(10), and one Pb(2) atom to form distorted face-sharing OBa3Pb2 square pyramids. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Ba(2), one Pb(2), one Pb(4), and one Pb(6) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to two equivalent Ba(2), one Pb(1), one Pb(3), and one Pb(5) atom. In the sixth O site, O(6) is bonded in a distorted see-saw-like geometry to one Ba(1), one Ba(4), one Pb(4), and one Pb(8) atom. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Ba(2), one Ba(4), one Pb(4), and one Pb(7) atom. In the eighth O site, O(8) is bonded in a distorted see-saw-like geometry to one Ba(2), one Ba(3), one Pb(3), and one Pb(7) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Ba(3), one Ba(4), one Pb(11), one Pb(7), and one Pb(9) atom. In the tenth O site, O(10) is bonded in a distorted trigonal planar geometry to one Ba(5), two equivalent Ba(4), one Pb(10), and one Pb(8) atom. In the eleventh O site, O(11) is bonded in a distorted see-saw-like geometry to one Ba(2), one Ba(3), one Pb(11), and one Pb(5) atom. In the twelfth O site, O(12) is bonded in a distorted see-saw-like geometry to one Ba(2), one Ba(4), one Pb(11), and one Pb(6) atom. In the thirteenth O site, O(13) is bonded in a distorted see-saw-like geometry to one Ba(1), one Ba(4), one Ba(5), and one Pb(6) atom. is represented by the CIF file [CIF]
data_Ba7Pb17O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   19.089
_cell_length_b   7.934
_cell_length_c   8.025
_cell_angle_alpha   61.097
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1064.000
_cell_formula_units_Z   1
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
  Ba  Ba0  1  0.000  0.333  0.365  1.0
  Ba  Ba1  1  0.334  0.336  0.332  1.0
  Ba  Ba2  1  0.666  0.336  0.332  1.0
  Ba  Ba3  1  0.500  0.666  0.667  1.0
  Ba  Ba4  1  0.831  0.667  0.658  1.0
  Ba  Ba5  1  0.169  0.667  0.658  1.0
  Ba  Ba6  1  0.000  0.334  0.873  1.0
  Pb  Pb7  1  0.500  0.655  0.161  1.0
  Pb  Pb8  1  0.166  0.651  0.157  1.0
  Pb  Pb9  1  0.834  0.651  0.157  1.0
  Pb  Pb10  1  0.500  0.160  0.183  1.0
  Pb  Pb11  1  0.830  0.163  0.179  1.0
  Pb  Pb12  1  0.170  0.163  0.179  1.0
  Pb  Pb13  1  0.500  0.183  0.648  1.0
  Pb  Pb14  1  0.830  0.186  0.647  1.0
  Pb  Pb15  1  0.170  0.186  0.647  1.0
  Pb  Pb16  1  0.335  0.831  0.349  1.0
  Pb  Pb17  1  0.665  0.831  0.349  1.0
  Pb  Pb18  1  0.000  0.831  0.356  1.0
  Pb  Pb19  1  0.333  0.818  0.839  1.0
  Pb  Pb20  1  0.000  0.811  0.854  1.0
  Pb  Pb21  1  0.667  0.818  0.839  1.0
  Pb  Pb22  1  0.666  0.349  0.816  1.0
  Pb  Pb23  1  0.334  0.349  0.816  1.0
  O  O24  1  0.416  0.602  0.999  1.0
  O  O25  1  0.750  0.605  0.993  1.0
  O  O26  1  0.081  0.584  0.003  1.0
  O  O27  1  0.250  0.605  0.993  1.0
  O  O28  1  0.584  0.602  0.999  1.0
  O  O29  1  0.919  0.584  0.003  1.0
  O  O30  1  0.173  0.335  0.329  1.0
  O  O31  1  0.827  0.335  0.329  1.0
  O  O32  1  0.500  0.336  0.331  1.0
  O  O33  1  0.918  0.020  0.373  1.0
  O  O34  1  0.250  0.994  0.396  1.0
  O  O35  1  0.417  0.001  0.397  1.0
  O  O36  1  0.750  0.994  0.396  1.0
  O  O37  1  0.583  0.001  0.397  1.0
  O  O38  1  0.082  0.020  0.373  1.0
  O  O39  1  0.334  0.669  0.666  1.0
  O  O40  1  0.000  0.690  0.662  1.0
  O  O41  1  0.666  0.669  0.666  1.0
  O  O42  1  0.582  0.398  0.604  1.0
  O  O43  1  0.253  0.401  0.599  1.0
  O  O44  1  0.418  0.398  0.604  1.0
  O  O45  1  0.912  0.391  0.614  1.0
  O  O46  1  0.088  0.391  0.614  1.0
  O  O47  1  0.747  0.401  0.599  1.0
[/CIF]
.