The compound described by Pb7(O4Cl)2 crystallizes in the monoclinic P2_1 space group. There are seven inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted trigonal bipyramidal geometry to one O(1), one O(2), one O(3), one O(4), and one Cl(2) atom. In the second Pb site, Pb(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(7) atom. In the third Pb site, Pb(3) is bonded in a 4-coordinate geometry to one O(3), one O(4), one O(5), and one O(6) atom. In the fourth Pb site, Pb(4) is bonded in a 3-coordinate geometry to one O(3), one O(4), and one O(5) atom. In the fifth Pb site, Pb(5) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(8), and one Cl(1) atom. In the sixth Pb site, Pb(6) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(7), and one O(8) atom. In the seventh Pb site, Pb(7) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(8) is bonded in a distorted trigonal planar geometry to one Pb(5), one Pb(6), and one Pb(7) atom. In the second O site, O(1) is bonded to one Pb(1), one Pb(2), one Pb(5), and one Pb(6) atom to form a mixture of corner and edge-sharing OPb4 tetrahedra. In the third O site, O(2) is bonded to one Pb(1), one Pb(2), one Pb(5), and one Pb(6) atom to form a mixture of corner and edge-sharing OPb4 tetrahedra. In the fourth O site, O(3) is bonded to one Pb(1), one Pb(2), one Pb(3), and one Pb(4) atom to form a mixture of distorted corner and edge-sharing OPb4 tetrahedra. In the fifth O site, O(4) is bonded to one Pb(1), one Pb(2), one Pb(3), and one Pb(4) atom to form a mixture of distorted corner and edge-sharing OPb4 tetrahedra. In the sixth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Pb(3), one Pb(4), and one Pb(7) atom. In the seventh O site, O(6) is bonded in a distorted L-shaped geometry to one Pb(3) and one Pb(7) atom. In the eighth O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Pb(2), one Pb(6), and one Pb(7) atom. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted single-bond geometry to one Pb(5) atom. In the second Cl site, Cl(2) is bonded in a single-bond geometry to one Pb(1) atom. is represented by the CIF card [CIF]
data_Pb7(ClO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   20.136
_cell_length_b   5.928
_cell_length_c   7.293
_cell_angle_alpha   66.846
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   800.471
_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  0.996  0.964  0.345  1.0
  Pb  Pb1  1  0.496  0.036  0.655  1.0
  Pb  Pb2  1  0.035  0.603  0.051  1.0
  Pb  Pb3  1  0.535  0.397  0.949  1.0
  Pb  Pb4  1  0.866  0.170  0.999  1.0
  Pb  Pb5  1  0.366  0.830  0.001  1.0
  Pb  Pb6  1  0.864  0.497  0.348  1.0
  Pb  Pb7  1  0.364  0.503  0.652  1.0
  Pb  Pb8  1  0.146  0.400  0.491  1.0
  Pb  Pb9  1  0.646  0.600  0.509  1.0
  Pb  Pb10  1  0.164  0.015  0.181  1.0
  Pb  Pb11  1  0.664  0.985  0.819  1.0
  Pb  Pb12  1  0.225  0.758  0.798  1.0
  Pb  Pb13  1  0.725  0.242  0.202  1.0
  Cl  Cl14  1  0.063  0.236  0.821  1.0
  Cl  Cl15  1  0.563  0.764  0.179  1.0
  Cl  Cl16  1  0.932  0.799  0.673  1.0
  Cl  Cl17  1  0.432  0.201  0.327  1.0
  O  O18  1  0.074  0.723  0.315  1.0
  O  O19  1  0.574  0.277  0.685  1.0
  O  O20  1  0.077  0.214  0.300  1.0
  O  O21  1  0.577  0.786  0.700  1.0
  O  O22  1  0.936  0.290  0.201  1.0
  O  O23  1  0.436  0.710  0.799  1.0
  O  O24  1  0.936  0.811  0.176  1.0
  O  O25  1  0.436  0.189  0.824  1.0
  O  O26  1  0.305  0.509  0.911  1.0
  O  O27  1  0.805  0.491  0.089  1.0
  O  O28  1  0.289  0.055  0.769  1.0
  O  O29  1  0.789  0.945  0.231  1.0
  O  O30  1  0.161  0.688  0.043  1.0
  O  O31  1  0.661  0.312  0.957  1.0
  O  O32  1  0.194  0.754  0.522  1.0
  O  O33  1  0.694  0.246  0.478  1.0
[/CIF]
.
The compound described by Pb7(O4Cl)2 crystallizes in the monoclinic P2_1 space group. There are seven inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a distorted trigonal bipyramidal geometry to one O(1), one O(2), one O(3), one O(4), and one Cl(2) atom. In the second Pb site, Pb(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(7) atom. In the third Pb site, Pb(3) is bonded in a 4-coordinate geometry to one O(3), one O(4), one O(5), and one O(6) atom. In the fourth Pb site, Pb(4) is bonded in a 3-coordinate geometry to one O(3), one O(4), and one O(5) atom. In the fifth Pb site, Pb(5) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(8), and one Cl(1) atom. In the sixth Pb site, Pb(6) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(7), and one O(8) atom. In the seventh Pb site, Pb(7) is bonded in a tetrahedral geometry to one O(5), one O(6), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(8) is bonded in a distorted trigonal planar geometry to one Pb(5), one Pb(6), and one Pb(7) atom. In the second O site, O(1) is bonded to one Pb(1), one Pb(2), one Pb(5), and one Pb(6) atom to form a mixture of corner and edge-sharing OPb4 tetrahedra. In the third O site, O(2) is bonded to one Pb(1), one Pb(2), one Pb(5), and one Pb(6) atom to form a mixture of corner and edge-sharing OPb4 tetrahedra. In the fourth O site, O(3) is bonded to one Pb(1), one Pb(2), one Pb(3), and one Pb(4) atom to form a mixture of distorted corner and edge-sharing OPb4 tetrahedra. In the fifth O site, O(4) is bonded to one Pb(1), one Pb(2), one Pb(3), and one Pb(4) atom to form a mixture of distorted corner and edge-sharing OPb4 tetrahedra. In the sixth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Pb(3), one Pb(4), and one Pb(7) atom. In the seventh O site, O(6) is bonded in a distorted L-shaped geometry to one Pb(3) and one Pb(7) atom. In the eighth O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one Pb(2), one Pb(6), and one Pb(7) atom. There are two inequivalent Cl sites. In the first Cl site, Cl(1) is bonded in a distorted single-bond geometry to one Pb(5) atom. In the second Cl site, Cl(2) is bonded in a single-bond geometry to one Pb(1) atom. is represented by the CIF card [CIF]
data_Pb7(ClO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   20.136
_cell_length_b   5.928
_cell_length_c   7.293
_cell_angle_alpha   66.846
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   800.471
_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  0.996  0.964  0.345  1.0
  Pb  Pb1  1  0.496  0.036  0.655  1.0
  Pb  Pb2  1  0.035  0.603  0.051  1.0
  Pb  Pb3  1  0.535  0.397  0.949  1.0
  Pb  Pb4  1  0.866  0.170  0.999  1.0
  Pb  Pb5  1  0.366  0.830  0.001  1.0
  Pb  Pb6  1  0.864  0.497  0.348  1.0
  Pb  Pb7  1  0.364  0.503  0.652  1.0
  Pb  Pb8  1  0.146  0.400  0.491  1.0
  Pb  Pb9  1  0.646  0.600  0.509  1.0
  Pb  Pb10  1  0.164  0.015  0.181  1.0
  Pb  Pb11  1  0.664  0.985  0.819  1.0
  Pb  Pb12  1  0.225  0.758  0.798  1.0
  Pb  Pb13  1  0.725  0.242  0.202  1.0
  Cl  Cl14  1  0.063  0.236  0.821  1.0
  Cl  Cl15  1  0.563  0.764  0.179  1.0
  Cl  Cl16  1  0.932  0.799  0.673  1.0
  Cl  Cl17  1  0.432  0.201  0.327  1.0
  O  O18  1  0.074  0.723  0.315  1.0
  O  O19  1  0.574  0.277  0.685  1.0
  O  O20  1  0.077  0.214  0.300  1.0
  O  O21  1  0.577  0.786  0.700  1.0
  O  O22  1  0.936  0.290  0.201  1.0
  O  O23  1  0.436  0.710  0.799  1.0
  O  O24  1  0.936  0.811  0.176  1.0
  O  O25  1  0.436  0.189  0.824  1.0
  O  O26  1  0.305  0.509  0.911  1.0
  O  O27  1  0.805  0.491  0.089  1.0
  O  O28  1  0.289  0.055  0.769  1.0
  O  O29  1  0.789  0.945  0.231  1.0
  O  O30  1  0.161  0.688  0.043  1.0
  O  O31  1  0.661  0.312  0.957  1.0
  O  O32  1  0.194  0.754  0.522  1.0
  O  O33  1  0.694  0.246  0.478  1.0
[/CIF]
.