The structure described by Ni2Sb2O7 crystallizes in the cubic Fd-3m space group. Ni(1) is bonded to two equivalent O(2) and six equivalent O(1) atoms to form distorted NiO8 hexagonal bipyramids that share edges with six equivalent Ni(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 Ni(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 49°. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Ni(1) and two equivalent Sb(1) atoms to form distorted ONi2Sb2 tetrahedra that share corners with two equivalent O(2)Ni4 tetrahedra, corners with twelve equivalent O(1)Ni2Sb2 tetrahedra,  an edgeedge with one O(2)Ni4 tetrahedra, and edges with four equivalent O(1)Ni2Sb2 tetrahedra. In the second O site, O(2) is bonded to four equivalent Ni(1) atoms to form ONi4 tetrahedra that share corners with four equivalent O(2)Ni4 tetrahedra, corners with twelve equivalent O(1)Ni2Sb2 tetrahedra, and edges with six equivalent O(1)Ni2Sb2 tetrahedra. is represented by the CIF card [CIF]
data_Ni2Sb2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.209
_cell_length_b   7.209
_cell_length_c   7.209
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   264.869
_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
  Ni  Ni0  1  0.625  0.125  0.125  1.0
  Ni  Ni1  1  0.125  0.625  0.125  1.0
  Ni  Ni2  1  0.125  0.125  0.625  1.0
  Ni  Ni3  1  0.125  0.125  0.125  1.0
  Sb  Sb4  1  0.125  0.625  0.625  1.0
  Sb  Sb5  1  0.625  0.125  0.625  1.0
  Sb  Sb6  1  0.625  0.625  0.125  1.0
  Sb  Sb7  1  0.625  0.625  0.625  1.0
  O  O8  1  0.706  0.706  0.294  1.0
  O  O9  1  0.294  0.294  0.706  1.0
  O  O10  1  0.706  0.294  0.706  1.0
  O  O11  1  0.294  0.706  0.294  1.0
  O  O12  1  0.294  0.706  0.706  1.0
  O  O13  1  0.706  0.294  0.294  1.0
  O  O14  1  0.544  0.544  0.956  1.0
  O  O15  1  0.956  0.956  0.544  1.0
  O  O16  1  0.544  0.956  0.544  1.0
  O  O17  1  0.956  0.544  0.956  1.0
  O  O18  1  0.956  0.544  0.544  1.0
  O  O19  1  0.544  0.956  0.956  1.0
  O  O20  1  0.250  0.250  0.250  1.0
  O  O21  1  0.000  0.000  0.000  1.0
[/CIF]
.
The structure described by Ni2Sb2O7 crystallizes in the cubic Fd-3m space group. Ni(1) is bonded to two equivalent O(2) and six equivalent O(1) atoms to form distorted NiO8 hexagonal bipyramids that share edges with six equivalent Ni(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 Ni(1)O8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 49°. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Ni(1) and two equivalent Sb(1) atoms to form distorted ONi2Sb2 tetrahedra that share corners with two equivalent O(2)Ni4 tetrahedra, corners with twelve equivalent O(1)Ni2Sb2 tetrahedra,  an edgeedge with one O(2)Ni4 tetrahedra, and edges with four equivalent O(1)Ni2Sb2 tetrahedra. In the second O site, O(2) is bonded to four equivalent Ni(1) atoms to form ONi4 tetrahedra that share corners with four equivalent O(2)Ni4 tetrahedra, corners with twelve equivalent O(1)Ni2Sb2 tetrahedra, and edges with six equivalent O(1)Ni2Sb2 tetrahedra. is represented by the CIF card [CIF]
data_Ni2Sb2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.209
_cell_length_b   7.209
_cell_length_c   7.209
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   264.869
_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
  Ni  Ni0  1  0.625  0.125  0.125  1.0
  Ni  Ni1  1  0.125  0.625  0.125  1.0
  Ni  Ni2  1  0.125  0.125  0.625  1.0
  Ni  Ni3  1  0.125  0.125  0.125  1.0
  Sb  Sb4  1  0.125  0.625  0.625  1.0
  Sb  Sb5  1  0.625  0.125  0.625  1.0
  Sb  Sb6  1  0.625  0.625  0.125  1.0
  Sb  Sb7  1  0.625  0.625  0.625  1.0
  O  O8  1  0.706  0.706  0.294  1.0
  O  O9  1  0.294  0.294  0.706  1.0
  O  O10  1  0.706  0.294  0.706  1.0
  O  O11  1  0.294  0.706  0.294  1.0
  O  O12  1  0.294  0.706  0.706  1.0
  O  O13  1  0.706  0.294  0.294  1.0
  O  O14  1  0.544  0.544  0.956  1.0
  O  O15  1  0.956  0.956  0.544  1.0
  O  O16  1  0.544  0.956  0.544  1.0
  O  O17  1  0.956  0.544  0.956  1.0
  O  O18  1  0.956  0.544  0.544  1.0
  O  O19  1  0.544  0.956  0.956  1.0
  O  O20  1  0.250  0.250  0.250  1.0
  O  O21  1  0.000  0.000  0.000  1.0
[/CIF]
.