The compound described by Pb3Te2O6BrBr crystallizes in the monoclinic C2/m space group. The structure consists of four hydrogen bromide atoms inside a Pb3Te2O6Br framework. In the Pb3Te2O6Br framework, there are three inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to two equivalent O(1), two equivalent O(4), and one Br(2) atom. In the second Pb site, Pb(2) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(2), and two equivalent Br(2) atoms. In the third Pb site, Pb(3) is bonded in a 4-coordinate geometry to two equivalent O(1), two equivalent O(4), and one Br(2) atom. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form distorted edge-sharing TeO4 trigonal pyramids. In the second Te site, Te(2) is bonded in a distorted T-shaped geometry to one O(3) and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(2) is bonded to two equivalent Pb(2) and two equivalent Te(1) atoms to form distorted OTe2Pb2 tetrahedra that share corners with four equivalent O(1)TePb3 tetrahedra, edges with two equivalent O(2)Te2Pb2 tetrahedra, and edges with two equivalent O(1)TePb3 tetrahedra. In the second O site, O(3) is bonded in a bent 150 degrees geometry to one Pb(2) and one Te(2) atom. In the third O site, O(4) is bonded in a 3-coordinate geometry to one Pb(1), one Pb(3), and one Te(2) atom. In the fourth O site, O(1) is bonded to one Pb(1), one Pb(2), one Pb(3), and one Te(1) atom to form distorted OTePb3 tetrahedra that share corners with two equivalent O(2)Te2Pb2 tetrahedra,  an edgeedge with one O(2)Te2Pb2 tetrahedra, and edges with two equivalent O(1)TePb3 tetrahedra. Br(2) is bonded in a 4-coordinate geometry to one Pb(1), one Pb(3), and two equivalent Pb(2) atoms. is represented by the CIF file [CIF]
data_Te2Pb3(BrO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.088
_cell_length_b   9.088
_cell_length_c   11.256
_cell_angle_alpha   75.768
_cell_angle_beta   75.768
_cell_angle_gamma   37.041
_symmetry_Int_Tables_number   1
_cell_volume   540.920
_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
  Te  Te0  1  0.601  0.601  0.948  1.0
  Te  Te1  1  0.399  0.399  0.052  1.0
  Te  Te2  1  0.870  0.870  0.585  1.0
  Te  Te3  1  0.130  0.130  0.415  1.0
  Pb  Pb4  1  0.260  0.260  0.791  1.0
  Pb  Pb5  1  0.740  0.740  0.209  1.0
  Pb  Pb6  1  0.026  0.026  0.802  1.0
  Pb  Pb7  1  0.974  0.974  0.198  1.0
  Pb  Pb8  1  0.665  0.665  0.610  1.0
  Pb  Pb9  1  0.335  0.335  0.390  1.0
  Br  Br10  1  0.818  0.818  0.900  1.0
  Br  Br11  1  0.182  0.182  0.100  1.0
  Br  Br12  1  0.460  0.460  0.690  1.0
  Br  Br13  1  0.540  0.540  0.310  1.0
  O  O14  1  0.863  0.401  0.817  1.0
  O  O15  1  0.401  0.863  0.817  1.0
  O  O16  1  0.137  0.599  0.183  1.0
  O  O17  1  0.599  0.137  0.183  1.0
  O  O18  1  0.713  0.287  0.000  1.0
  O  O19  1  0.287  0.713  0.000  1.0
  O  O20  1  0.889  0.889  0.412  1.0
  O  O21  1  0.111  0.111  0.588  1.0
  O  O22  1  0.028  0.552  0.612  1.0
  O  O23  1  0.552  0.028  0.612  1.0
  O  O24  1  0.972  0.448  0.388  1.0
  O  O25  1  0.448  0.972  0.388  1.0
[/CIF]
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The compound described by Pb3Te2O6BrBr crystallizes in the monoclinic C2/m space group. The structure consists of four hydrogen bromide atoms inside a Pb3Te2O6Br framework. In the Pb3Te2O6Br framework, there are three inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 4-coordinate geometry to two equivalent O(1), two equivalent O(4), and one Br(2) atom. In the second Pb site, Pb(2) is bonded in a 5-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(2), and two equivalent Br(2) atoms. In the third Pb site, Pb(3) is bonded in a 4-coordinate geometry to two equivalent O(1), two equivalent O(4), and one Br(2) atom. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form distorted edge-sharing TeO4 trigonal pyramids. In the second Te site, Te(2) is bonded in a distorted T-shaped geometry to one O(3) and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(2) is bonded to two equivalent Pb(2) and two equivalent Te(1) atoms to form distorted OTe2Pb2 tetrahedra that share corners with four equivalent O(1)TePb3 tetrahedra, edges with two equivalent O(2)Te2Pb2 tetrahedra, and edges with two equivalent O(1)TePb3 tetrahedra. In the second O site, O(3) is bonded in a bent 150 degrees geometry to one Pb(2) and one Te(2) atom. In the third O site, O(4) is bonded in a 3-coordinate geometry to one Pb(1), one Pb(3), and one Te(2) atom. In the fourth O site, O(1) is bonded to one Pb(1), one Pb(2), one Pb(3), and one Te(1) atom to form distorted OTePb3 tetrahedra that share corners with two equivalent O(2)Te2Pb2 tetrahedra,  an edgeedge with one O(2)Te2Pb2 tetrahedra, and edges with two equivalent O(1)TePb3 tetrahedra. Br(2) is bonded in a 4-coordinate geometry to one Pb(1), one Pb(3), and two equivalent Pb(2) atoms. is represented by the CIF file [CIF]
data_Te2Pb3(BrO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.088
_cell_length_b   9.088
_cell_length_c   11.256
_cell_angle_alpha   75.768
_cell_angle_beta   75.768
_cell_angle_gamma   37.041
_symmetry_Int_Tables_number   1
_cell_volume   540.920
_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
  Te  Te0  1  0.601  0.601  0.948  1.0
  Te  Te1  1  0.399  0.399  0.052  1.0
  Te  Te2  1  0.870  0.870  0.585  1.0
  Te  Te3  1  0.130  0.130  0.415  1.0
  Pb  Pb4  1  0.260  0.260  0.791  1.0
  Pb  Pb5  1  0.740  0.740  0.209  1.0
  Pb  Pb6  1  0.026  0.026  0.802  1.0
  Pb  Pb7  1  0.974  0.974  0.198  1.0
  Pb  Pb8  1  0.665  0.665  0.610  1.0
  Pb  Pb9  1  0.335  0.335  0.390  1.0
  Br  Br10  1  0.818  0.818  0.900  1.0
  Br  Br11  1  0.182  0.182  0.100  1.0
  Br  Br12  1  0.460  0.460  0.690  1.0
  Br  Br13  1  0.540  0.540  0.310  1.0
  O  O14  1  0.863  0.401  0.817  1.0
  O  O15  1  0.401  0.863  0.817  1.0
  O  O16  1  0.137  0.599  0.183  1.0
  O  O17  1  0.599  0.137  0.183  1.0
  O  O18  1  0.713  0.287  0.000  1.0
  O  O19  1  0.287  0.713  0.000  1.0
  O  O20  1  0.889  0.889  0.412  1.0
  O  O21  1  0.111  0.111  0.588  1.0
  O  O22  1  0.028  0.552  0.612  1.0
  O  O23  1  0.552  0.028  0.612  1.0
  O  O24  1  0.972  0.448  0.388  1.0
  O  O25  1  0.448  0.972  0.388  1.0
[/CIF]
.