The crystal structure described by Ba2Fe8Ni3(SbO11)2 crystallizes in the trigonal P-3m1 space group. Ba(1) is bonded to three equivalent O(5) and nine equivalent O(2) atoms to form BaO12 cuboctahedra that share corners with six equivalent Ba(1)O12 cuboctahedra, corners with three equivalent Ni(1)O4 tetrahedra, edges with three equivalent Fe(1)O6 octahedra, edges with three equivalent Ni(1)O4 tetrahedra, faces with three equivalent Ba(1)O12 cuboctahedra, and faces with four equivalent Sb(1)O6 octahedra. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra,  a cornercorner with one Ni(1)O4 tetrahedra, corners with three equivalent Fe(2)O4 tetrahedra,  an edgeedge with one Ba(1)O12 cuboctahedra,  an edgeedge with one Ni(2)O6 octahedra, and edges with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the second Fe site, Fe(2) is bonded to one O(4) and three equivalent O(1) atoms to form FeO4 tetrahedra that share corners with three equivalent Ni(2)O6 octahedra and corners with nine equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-58°. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(3) and three equivalent O(2) atoms to form NiO4 tetrahedra that share corners with three equivalent Ba(1)O12 cuboctahedra, corners with three equivalent Fe(1)O6 octahedra, corners with three equivalent Sb(1)O6 octahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 49-60°. In the second Ni site, Ni(2) is bonded to six equivalent O(1) atoms to form NiO6 octahedra that share corners with six equivalent Fe(2)O4 tetrahedra and edges with six equivalent Fe(1)O6 octahedra. Sb(1) is bonded to three equivalent O(2) and three equivalent O(5) atoms to form SbO6 octahedra that share corners with six equivalent Fe(1)O6 octahedra, corners with three equivalent Ni(1)O4 tetrahedra, and faces with four equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 51°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Fe(2), two equivalent Fe(1), and one Ni(2) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to three equivalent Ba(1), one Ni(1), and one Sb(1) atom. In the third O site, O(3) is bonded in a distorted tetrahedral geometry to three equivalent Fe(1) and one Ni(1) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Fe(2) and three equivalent Fe(1) atoms. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Ba(1), two equivalent Fe(1), and one Sb(1) atom. is represented by the CIF card [CIF]
data_Ba2Fe8Ni3(SbO11)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.023
_cell_length_b   6.023
_cell_length_c   14.427
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   453.190
_cell_formula_units_Z   1
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
  Ba  Ba0  1  0.667  0.333  0.575  1.0
  Ba  Ba1  1  0.333  0.667  0.425  1.0
  Fe  Fe2  1  0.835  0.670  0.828  1.0
  Fe  Fe3  1  0.835  0.165  0.828  1.0
  Fe  Fe4  1  0.330  0.165  0.828  1.0
  Fe  Fe5  1  0.165  0.330  0.172  1.0
  Fe  Fe6  1  0.165  0.835  0.172  1.0
  Fe  Fe7  1  0.670  0.835  0.172  1.0
  Fe  Fe8  1  0.667  0.333  0.046  1.0
  Fe  Fe9  1  0.333  0.667  0.954  1.0
  Ni  Ni10  1  0.000  0.000  0.622  1.0
  Ni  Ni11  1  0.000  0.000  0.378  1.0
  Ni  Ni12  1  0.000  0.000  0.000  1.0
  Sb  Sb13  1  0.667  0.333  0.324  1.0
  Sb  Sb14  1  0.333  0.667  0.676  1.0
  O  O15  1  0.844  0.689  0.087  1.0
  O  O16  1  0.844  0.156  0.087  1.0
  O  O17  1  0.311  0.156  0.087  1.0
  O  O18  1  0.156  0.311  0.913  1.0
  O  O19  1  0.156  0.844  0.913  1.0
  O  O20  1  0.689  0.844  0.913  1.0
  O  O21  1  0.821  0.641  0.407  1.0
  O  O22  1  0.821  0.179  0.407  1.0
  O  O23  1  0.359  0.179  0.407  1.0
  O  O24  1  0.179  0.359  0.593  1.0
  O  O25  1  0.179  0.821  0.593  1.0
  O  O26  1  0.641  0.821  0.593  1.0
  O  O27  1  0.000  0.000  0.761  1.0
  O  O28  1  0.000  0.000  0.239  1.0
  O  O29  1  0.667  0.333  0.909  1.0
  O  O30  1  0.333  0.667  0.091  1.0
  O  O31  1  0.504  0.007  0.755  1.0
  O  O32  1  0.504  0.496  0.755  1.0
  O  O33  1  0.993  0.496  0.755  1.0
  O  O34  1  0.496  0.993  0.245  1.0
  O  O35  1  0.496  0.504  0.245  1.0
  O  O36  1  0.007  0.504  0.245  1.0
[/CIF]
.
The crystal structure described by Ba2Fe8Ni3(SbO11)2 crystallizes in the trigonal P-3m1 space group. Ba(1) is bonded to three equivalent O(5) and nine equivalent O(2) atoms to form BaO12 cuboctahedra that share corners with six equivalent Ba(1)O12 cuboctahedra, corners with three equivalent Ni(1)O4 tetrahedra, edges with three equivalent Fe(1)O6 octahedra, edges with three equivalent Ni(1)O4 tetrahedra, faces with three equivalent Ba(1)O12 cuboctahedra, and faces with four equivalent Sb(1)O6 octahedra. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra,  a cornercorner with one Ni(1)O4 tetrahedra, corners with three equivalent Fe(2)O4 tetrahedra,  an edgeedge with one Ba(1)O12 cuboctahedra,  an edgeedge with one Ni(2)O6 octahedra, and edges with four equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the second Fe site, Fe(2) is bonded to one O(4) and three equivalent O(1) atoms to form FeO4 tetrahedra that share corners with three equivalent Ni(2)O6 octahedra and corners with nine equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-58°. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to one O(3) and three equivalent O(2) atoms to form NiO4 tetrahedra that share corners with three equivalent Ba(1)O12 cuboctahedra, corners with three equivalent Fe(1)O6 octahedra, corners with three equivalent Sb(1)O6 octahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 49-60°. In the second Ni site, Ni(2) is bonded to six equivalent O(1) atoms to form NiO6 octahedra that share corners with six equivalent Fe(2)O4 tetrahedra and edges with six equivalent Fe(1)O6 octahedra. Sb(1) is bonded to three equivalent O(2) and three equivalent O(5) atoms to form SbO6 octahedra that share corners with six equivalent Fe(1)O6 octahedra, corners with three equivalent Ni(1)O4 tetrahedra, and faces with four equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 51°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Fe(2), two equivalent Fe(1), and one Ni(2) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to three equivalent Ba(1), one Ni(1), and one Sb(1) atom. In the third O site, O(3) is bonded in a distorted tetrahedral geometry to three equivalent Fe(1) and one Ni(1) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Fe(2) and three equivalent Fe(1) atoms. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Ba(1), two equivalent Fe(1), and one Sb(1) atom. is represented by the CIF card [CIF]
data_Ba2Fe8Ni3(SbO11)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.023
_cell_length_b   6.023
_cell_length_c   14.427
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   453.190
_cell_formula_units_Z   1
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
  Ba  Ba0  1  0.667  0.333  0.575  1.0
  Ba  Ba1  1  0.333  0.667  0.425  1.0
  Fe  Fe2  1  0.835  0.670  0.828  1.0
  Fe  Fe3  1  0.835  0.165  0.828  1.0
  Fe  Fe4  1  0.330  0.165  0.828  1.0
  Fe  Fe5  1  0.165  0.330  0.172  1.0
  Fe  Fe6  1  0.165  0.835  0.172  1.0
  Fe  Fe7  1  0.670  0.835  0.172  1.0
  Fe  Fe8  1  0.667  0.333  0.046  1.0
  Fe  Fe9  1  0.333  0.667  0.954  1.0
  Ni  Ni10  1  0.000  0.000  0.622  1.0
  Ni  Ni11  1  0.000  0.000  0.378  1.0
  Ni  Ni12  1  0.000  0.000  0.000  1.0
  Sb  Sb13  1  0.667  0.333  0.324  1.0
  Sb  Sb14  1  0.333  0.667  0.676  1.0
  O  O15  1  0.844  0.689  0.087  1.0
  O  O16  1  0.844  0.156  0.087  1.0
  O  O17  1  0.311  0.156  0.087  1.0
  O  O18  1  0.156  0.311  0.913  1.0
  O  O19  1  0.156  0.844  0.913  1.0
  O  O20  1  0.689  0.844  0.913  1.0
  O  O21  1  0.821  0.641  0.407  1.0
  O  O22  1  0.821  0.179  0.407  1.0
  O  O23  1  0.359  0.179  0.407  1.0
  O  O24  1  0.179  0.359  0.593  1.0
  O  O25  1  0.179  0.821  0.593  1.0
  O  O26  1  0.641  0.821  0.593  1.0
  O  O27  1  0.000  0.000  0.761  1.0
  O  O28  1  0.000  0.000  0.239  1.0
  O  O29  1  0.667  0.333  0.909  1.0
  O  O30  1  0.333  0.667  0.091  1.0
  O  O31  1  0.504  0.007  0.755  1.0
  O  O32  1  0.504  0.496  0.755  1.0
  O  O33  1  0.993  0.496  0.755  1.0
  O  O34  1  0.496  0.993  0.245  1.0
  O  O35  1  0.496  0.504  0.245  1.0
  O  O36  1  0.007  0.504  0.245  1.0
[/CIF]
.