The crystal structure described by Pb2Sb2O7 crystallizes in the cubic Fd-3m space group. Pb(1) is bonded to two equivalent O(2) and six equivalent O(1) atoms to form distorted PbO8 hexagonal bipyramids that share edges with six equivalent Pb(1)O8 hexagonal bipyramids and edges with six equivalent Sb(1)O6 octahedra. Sb(1) is bonded to six equivalent O(1) atoms to form SbO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra and edges with six equivalent Pb(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 42°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Pb(1) and two equivalent Sb(1) atoms. In the second O site, O(2) is bonded to four equivalent Pb(1) atoms to form corner-sharing OPb4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sb2Pb2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.676
_cell_length_b   7.676
_cell_length_c   7.676
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   319.853
_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  0.125  0.625  0.125  1.0
  Sb  Sb1  1  0.125  0.125  0.125  1.0
  Sb  Sb2  1  0.625  0.125  0.125  1.0
  Sb  Sb3  1  0.125  0.125  0.625  1.0
  Pb  Pb4  1  0.625  0.125  0.625  1.0
  Pb  Pb5  1  0.125  0.625  0.625  1.0
  Pb  Pb6  1  0.625  0.625  0.125  1.0
  Pb  Pb7  1  0.625  0.625  0.625  1.0
  O  O8  1  0.058  0.442  0.058  1.0
  O  O9  1  0.058  0.442  0.442  1.0
  O  O10  1  0.808  0.192  0.808  1.0
  O  O11  1  0.808  0.192  0.192  1.0
  O  O12  1  0.192  0.808  0.192  1.0
  O  O13  1  0.750  0.750  0.750  1.0
  O  O14  1  0.192  0.192  0.808  1.0
  O  O15  1  0.442  0.058  0.058  1.0
  O  O16  1  0.442  0.058  0.442  1.0
  O  O17  1  0.192  0.808  0.808  1.0
  O  O18  1  0.058  0.058  0.442  1.0
  O  O19  1  0.500  0.500  0.500  1.0
  O  O20  1  0.442  0.442  0.058  1.0
  O  O21  1  0.808  0.808  0.192  1.0
[/CIF]
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The crystal structure described by Pb2Sb2O7 crystallizes in the cubic Fd-3m space group. Pb(1) is bonded to two equivalent O(2) and six equivalent O(1) atoms to form distorted PbO8 hexagonal bipyramids that share edges with six equivalent Pb(1)O8 hexagonal bipyramids and edges with six equivalent Sb(1)O6 octahedra. Sb(1) is bonded to six equivalent O(1) atoms to form SbO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra and edges with six equivalent Pb(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 42°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to two equivalent Pb(1) and two equivalent Sb(1) atoms. In the second O site, O(2) is bonded to four equivalent Pb(1) atoms to form corner-sharing OPb4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sb2Pb2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.676
_cell_length_b   7.676
_cell_length_c   7.676
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   319.853
_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  0.125  0.625  0.125  1.0
  Sb  Sb1  1  0.125  0.125  0.125  1.0
  Sb  Sb2  1  0.625  0.125  0.125  1.0
  Sb  Sb3  1  0.125  0.125  0.625  1.0
  Pb  Pb4  1  0.625  0.125  0.625  1.0
  Pb  Pb5  1  0.125  0.625  0.625  1.0
  Pb  Pb6  1  0.625  0.625  0.125  1.0
  Pb  Pb7  1  0.625  0.625  0.625  1.0
  O  O8  1  0.058  0.442  0.058  1.0
  O  O9  1  0.058  0.442  0.442  1.0
  O  O10  1  0.808  0.192  0.808  1.0
  O  O11  1  0.808  0.192  0.192  1.0
  O  O12  1  0.192  0.808  0.192  1.0
  O  O13  1  0.750  0.750  0.750  1.0
  O  O14  1  0.192  0.192  0.808  1.0
  O  O15  1  0.442  0.058  0.058  1.0
  O  O16  1  0.442  0.058  0.442  1.0
  O  O17  1  0.192  0.808  0.808  1.0
  O  O18  1  0.058  0.058  0.442  1.0
  O  O19  1  0.500  0.500  0.500  1.0
  O  O20  1  0.442  0.442  0.058  1.0
  O  O21  1  0.808  0.808  0.192  1.0
[/CIF]
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