The compound described by Pb2Sb2O7 crystallizes in the cubic Fd-3m space group. Pb(1) is bonded in a hexagonal planar geometry to six equivalent O(1) atoms. Sb(1) is bonded in a body-centered cubic geometry to two equivalent O(2) and six equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Pb(1) and two equivalent Sb(1) atoms to form OSb2Pb2 tetrahedra that share corners with two equivalent O(2)Sb4 tetrahedra, corners with twelve equivalent O(1)Sb2Pb2 tetrahedra,  an edgeedge with one O(2)Sb4 tetrahedra, and edges with four equivalent O(1)Sb2Pb2 tetrahedra. In the second O site, O(2) is bonded to four equivalent Sb(1) atoms to form OSb4 tetrahedra that share corners with four equivalent O(2)Sb4 tetrahedra, corners with twelve equivalent O(1)Sb2Pb2 tetrahedra, and edges with six equivalent O(1)Sb2Pb2 tetrahedra. is represented by the CIF card [CIF]
data_Sb2Pb2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.595
_cell_length_b   7.595
_cell_length_c   7.595
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   309.735
_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
  Sb  Sb0  1  0.625  0.625  0.125  1.0
  Sb  Sb1  1  0.625  0.125  0.625  1.0
  Sb  Sb2  1  0.625  0.625  0.625  1.0
  Sb  Sb3  1  0.125  0.625  0.625  1.0
  Pb  Pb4  1  0.125  0.625  0.125  1.0
  Pb  Pb5  1  0.625  0.125  0.125  1.0
  Pb  Pb6  1  0.125  0.125  0.625  1.0
  Pb  Pb7  1  0.125  0.125  0.125  1.0
  O  O8  1  0.973  0.527  0.973  1.0
  O  O9  1  0.277  0.723  0.723  1.0
  O  O10  1  0.527  0.973  0.973  1.0
  O  O11  1  0.527  0.973  0.527  1.0
  O  O12  1  0.527  0.527  0.973  1.0
  O  O13  1  0.277  0.723  0.277  1.0
  O  O14  1  0.500  0.500  0.500  1.0
  O  O15  1  0.973  0.527  0.527  1.0
  O  O16  1  0.277  0.277  0.723  1.0
  O  O17  1  0.723  0.277  0.277  1.0
  O  O18  1  0.750  0.750  0.750  1.0
  O  O19  1  0.723  0.723  0.277  1.0
  O  O20  1  0.723  0.277  0.723  1.0
  O  O21  1  0.973  0.973  0.527  1.0
[/CIF]
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The compound described by Pb2Sb2O7 crystallizes in the cubic Fd-3m space group. Pb(1) is bonded in a hexagonal planar geometry to six equivalent O(1) atoms. Sb(1) is bonded in a body-centered cubic geometry to two equivalent O(2) and six equivalent O(1) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Pb(1) and two equivalent Sb(1) atoms to form OSb2Pb2 tetrahedra that share corners with two equivalent O(2)Sb4 tetrahedra, corners with twelve equivalent O(1)Sb2Pb2 tetrahedra,  an edgeedge with one O(2)Sb4 tetrahedra, and edges with four equivalent O(1)Sb2Pb2 tetrahedra. In the second O site, O(2) is bonded to four equivalent Sb(1) atoms to form OSb4 tetrahedra that share corners with four equivalent O(2)Sb4 tetrahedra, corners with twelve equivalent O(1)Sb2Pb2 tetrahedra, and edges with six equivalent O(1)Sb2Pb2 tetrahedra. is represented by the CIF card [CIF]
data_Sb2Pb2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.595
_cell_length_b   7.595
_cell_length_c   7.595
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   309.735
_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
  Sb  Sb0  1  0.625  0.625  0.125  1.0
  Sb  Sb1  1  0.625  0.125  0.625  1.0
  Sb  Sb2  1  0.625  0.625  0.625  1.0
  Sb  Sb3  1  0.125  0.625  0.625  1.0
  Pb  Pb4  1  0.125  0.625  0.125  1.0
  Pb  Pb5  1  0.625  0.125  0.125  1.0
  Pb  Pb6  1  0.125  0.125  0.625  1.0
  Pb  Pb7  1  0.125  0.125  0.125  1.0
  O  O8  1  0.973  0.527  0.973  1.0
  O  O9  1  0.277  0.723  0.723  1.0
  O  O10  1  0.527  0.973  0.973  1.0
  O  O11  1  0.527  0.973  0.527  1.0
  O  O12  1  0.527  0.527  0.973  1.0
  O  O13  1  0.277  0.723  0.277  1.0
  O  O14  1  0.500  0.500  0.500  1.0
  O  O15  1  0.973  0.527  0.527  1.0
  O  O16  1  0.277  0.277  0.723  1.0
  O  O17  1  0.723  0.277  0.277  1.0
  O  O18  1  0.750  0.750  0.750  1.0
  O  O19  1  0.723  0.723  0.277  1.0
  O  O20  1  0.723  0.277  0.723  1.0
  O  O21  1  0.973  0.973  0.527  1.0
[/CIF]
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