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 4-coordinate geometry to one O(1), 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(3), one O(4), and one O(6) atom. In the fourth Pb site, Pb(4) is bonded in a distorted T-shaped geometry to one O(3), one O(4), and one O(5) atom. In the fifth Pb site, Pb(5) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(7), one O(8), and one Cl(1) atom. In the sixth Pb site, Pb(6) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(7), one O(8), and one Cl(1) 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 T-shaped 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 distorted 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 distorted 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 corner and edge-sharing OPb4 tetrahedra. In the sixth O site, O(5) is bonded in a bent 120 degrees geometry to one Pb(4) and one Pb(7) atom. In the seventh O site, O(6) is bonded in a water-like geometry to one Pb(3) and one Pb(7) atom. In the eighth O site, O(7) is bonded in a 3-coordinate geometry to one Pb(5), 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 water-like geometry to one Pb(5) and one Pb(6) atom. In the second Cl site, Cl(2) is bonded in a distorted 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   20.327
_cell_length_b   5.974
_cell_length_c   7.188
_cell_angle_alpha   66.750
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   801.900
_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  0.003  0.689  0.346  1.0
  Pb  Pb1  1  0.503  0.311  0.654  1.0
  Pb  Pb2  1  0.972  0.332  0.047  1.0
  Pb  Pb3  1  0.472  0.668  0.953  1.0
  Pb  Pb4  1  0.127  0.856  0.997  1.0
  Pb  Pb5  1  0.627  0.144  0.003  1.0
  Pb  Pb6  1  0.134  0.157  0.369  1.0
  Pb  Pb7  1  0.634  0.843  0.631  1.0
  Pb  Pb8  1  0.849  0.197  0.458  1.0
  Pb  Pb9  1  0.349  0.803  0.542  1.0
  Pb  Pb10  1  0.840  0.832  0.155  1.0
  Pb  Pb11  1  0.340  0.168  0.845  1.0
  Pb  Pb12  1  0.772  0.441  0.797  1.0
  Pb  Pb13  1  0.272  0.559  0.203  1.0
  Cl  Cl14  1  0.934  0.976  0.805  1.0
  Cl  Cl15  1  0.434  0.024  0.195  1.0
  Cl  Cl16  1  0.070  0.537  0.669  1.0
  Cl  Cl17  1  0.570  0.463  0.331  1.0
  O  O18  1  0.928  0.956  0.299  1.0
  O  O19  1  0.428  0.044  0.701  1.0
  O  O20  1  0.927  0.471  0.287  1.0
  O  O21  1  0.427  0.529  0.713  1.0
  O  O22  1  0.064  0.517  0.194  1.0
  O  O23  1  0.564  0.483  0.806  1.0
  O  O24  1  0.063  0.016  0.181  1.0
  O  O25  1  0.563  0.984  0.819  1.0
  O  O26  1  0.709  0.675  0.865  1.0
  O  O27  1  0.209  0.325  0.135  1.0
  O  O28  1  0.698  0.212  0.757  1.0
  O  O29  1  0.198  0.788  0.243  1.0
  O  O30  1  0.826  0.261  0.068  1.0
  O  O31  1  0.326  0.739  0.932  1.0
  O  O32  1  0.820  0.551  0.517  1.0
  O  O33  1  0.320  0.449  0.483  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 4-coordinate geometry to one O(1), 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(3), one O(4), and one O(6) atom. In the fourth Pb site, Pb(4) is bonded in a distorted T-shaped geometry to one O(3), one O(4), and one O(5) atom. In the fifth Pb site, Pb(5) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(7), one O(8), and one Cl(1) atom. In the sixth Pb site, Pb(6) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(7), one O(8), and one Cl(1) 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 T-shaped 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 distorted 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 distorted 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 corner and edge-sharing OPb4 tetrahedra. In the sixth O site, O(5) is bonded in a bent 120 degrees geometry to one Pb(4) and one Pb(7) atom. In the seventh O site, O(6) is bonded in a water-like geometry to one Pb(3) and one Pb(7) atom. In the eighth O site, O(7) is bonded in a 3-coordinate geometry to one Pb(5), 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 water-like geometry to one Pb(5) and one Pb(6) atom. In the second Cl site, Cl(2) is bonded in a distorted 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   20.327
_cell_length_b   5.974
_cell_length_c   7.188
_cell_angle_alpha   66.750
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   801.900
_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  0.003  0.689  0.346  1.0
  Pb  Pb1  1  0.503  0.311  0.654  1.0
  Pb  Pb2  1  0.972  0.332  0.047  1.0
  Pb  Pb3  1  0.472  0.668  0.953  1.0
  Pb  Pb4  1  0.127  0.856  0.997  1.0
  Pb  Pb5  1  0.627  0.144  0.003  1.0
  Pb  Pb6  1  0.134  0.157  0.369  1.0
  Pb  Pb7  1  0.634  0.843  0.631  1.0
  Pb  Pb8  1  0.849  0.197  0.458  1.0
  Pb  Pb9  1  0.349  0.803  0.542  1.0
  Pb  Pb10  1  0.840  0.832  0.155  1.0
  Pb  Pb11  1  0.340  0.168  0.845  1.0
  Pb  Pb12  1  0.772  0.441  0.797  1.0
  Pb  Pb13  1  0.272  0.559  0.203  1.0
  Cl  Cl14  1  0.934  0.976  0.805  1.0
  Cl  Cl15  1  0.434  0.024  0.195  1.0
  Cl  Cl16  1  0.070  0.537  0.669  1.0
  Cl  Cl17  1  0.570  0.463  0.331  1.0
  O  O18  1  0.928  0.956  0.299  1.0
  O  O19  1  0.428  0.044  0.701  1.0
  O  O20  1  0.927  0.471  0.287  1.0
  O  O21  1  0.427  0.529  0.713  1.0
  O  O22  1  0.064  0.517  0.194  1.0
  O  O23  1  0.564  0.483  0.806  1.0
  O  O24  1  0.063  0.016  0.181  1.0
  O  O25  1  0.563  0.984  0.819  1.0
  O  O26  1  0.709  0.675  0.865  1.0
  O  O27  1  0.209  0.325  0.135  1.0
  O  O28  1  0.698  0.212  0.757  1.0
  O  O29  1  0.198  0.788  0.243  1.0
  O  O30  1  0.826  0.261  0.068  1.0
  O  O31  1  0.326  0.739  0.932  1.0
  O  O32  1  0.820  0.551  0.517  1.0
  O  O33  1  0.320  0.449  0.483  1.0
[/CIF]
.