The crystal structure described by Co7Sb2O12 is Spinel-like structured and crystallizes in the monoclinic C2/c space group. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form CoO4 tetrahedra that share corners with two equivalent Co(4)O6 octahedra, corners with two equivalent Co(5)O6 octahedra, corners with four equivalent Co(3)O6 octahedra, and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-62°. In the second Co site, Co(2) is bonded to two equivalent O(5) and two equivalent O(6) atoms to form CoO4 tetrahedra that share corners with two equivalent Co(4)O6 octahedra, corners with two equivalent Co(5)O6 octahedra, corners with four equivalent Co(3)O6 octahedra, and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-62°. In the third Co site, Co(3) is bonded to one O(1), one O(2), one O(5), one O(6), and two equivalent O(3) atoms to form CoO6 octahedra that share corners with two equivalent Co(2)O4 tetrahedra, corners with four equivalent Co(1)O4 tetrahedra,  an edgeedge with one Co(3)O6 octahedra,  an edgeedge with one Co(4)O6 octahedra,  an edgeedge with one Co(5)O6 octahedra, and edges with three equivalent Sb(1)O6 octahedra. In the fourth Co site, Co(4) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms to form CoO6 octahedra that share corners with two equivalent Co(2)O4 tetrahedra, corners with four equivalent Co(1)O4 tetrahedra, edges with two equivalent Co(3)O6 octahedra, edges with two equivalent Co(5)O6 octahedra, and edges with two equivalent Sb(1)O6 octahedra. In the fifth Co site, Co(5) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form CoO6 octahedra that share corners with two equivalent Co(2)O4 tetrahedra, corners with four equivalent Co(1)O4 tetrahedra, edges with two equivalent Co(3)O6 octahedra, edges with two equivalent Co(4)O6 octahedra, and edges with two equivalent Sb(1)O6 octahedra. Sb(1) is bonded to one O(3), one O(4), one O(5), one O(6), and two equivalent O(2) atoms to form SbO6 octahedra that share corners with two equivalent Co(2)O4 tetrahedra, corners with four equivalent Co(1)O4 tetrahedra,  an edgeedge with one Co(4)O6 octahedra,  an edgeedge with one Co(5)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, and edges with three equivalent Co(3)O6 octahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Co(1), one Co(3), one Co(4), and one Co(5) atom. In the second O site, O(2) is bonded to one Co(1), one Co(3), and two equivalent Sb(1) atoms to form distorted OCo2Sb2 trigonal pyramids that share  a cornercorner with one O(3)Co3Sb trigonal pyramid,  an edgeedge with one O(2)Co2Sb2 trigonal pyramid, and edges with two equivalent O(3)Co3Sb trigonal pyramids. In the third O site, O(3) is bonded to one Co(1), two equivalent Co(3), and one Sb(1) atom to form distorted OCo3Sb trigonal pyramids that share  a cornercorner with one O(2)Co2Sb2 trigonal pyramid,  an edgeedge with one O(3)Co3Sb trigonal pyramid, and edges with two equivalent O(2)Co2Sb2 trigonal pyramids. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Co(1), one Co(4), one Co(5), and one Sb(1) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Co(2), one Co(3), one Co(5), and one Sb(1) atom. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Co(2), one Co(3), one Co(4), and one Sb(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Co7(SbO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.079
_cell_length_b   6.079
_cell_length_c   13.308
_cell_angle_alpha   78.190
_cell_angle_beta   78.190
_cell_angle_gamma   90.387
_symmetry_Int_Tables_number   1
_cell_volume   470.546
_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
  Co  Co0  1  0.295  0.019  0.921  1.0
  Co  Co1  1  0.981  0.705  0.579  1.0
  Co  Co2  1  0.019  0.295  0.421  1.0
  Co  Co3  1  0.642  0.358  0.250  1.0
  Co  Co4  1  0.661  0.185  0.660  1.0
  Co  Co5  1  0.705  0.981  0.079  1.0
  Co  Co6  1  0.339  0.815  0.340  1.0
  Co  Co7  1  0.185  0.661  0.160  1.0
  Co  Co8  1  0.500  0.500  0.000  1.0
  Co  Co9  1  0.358  0.642  0.750  1.0
  Co  Co10  1  0.000  0.500  0.000  1.0
  Co  Co11  1  0.815  0.339  0.840  1.0
  Co  Co12  1  0.500  0.500  0.500  1.0
  Co  Co13  1  0.500  0.000  0.500  1.0
  Sb  Sb14  1  0.181  0.164  0.164  1.0
  Sb  Sb15  1  0.819  0.836  0.836  1.0
  Sb  Sb16  1  0.164  0.181  0.664  1.0
  Sb  Sb17  1  0.836  0.819  0.336  1.0
  O  O18  1  0.718  0.251  0.505  1.0
  O  O19  1  0.082  0.063  0.326  1.0
  O  O20  1  0.396  0.922  0.173  1.0
  O  O21  1  0.755  0.756  0.490  1.0
  O  O22  1  0.078  0.604  0.327  1.0
  O  O23  1  0.251  0.718  0.005  1.0
  O  O24  1  0.756  0.755  0.990  1.0
  O  O25  1  0.045  0.604  0.835  1.0
  O  O26  1  0.597  0.603  0.831  1.0
  O  O27  1  0.403  0.397  0.169  1.0
  O  O28  1  0.244  0.245  0.010  1.0
  O  O29  1  0.749  0.282  0.995  1.0
  O  O30  1  0.922  0.396  0.673  1.0
  O  O31  1  0.397  0.403  0.669  1.0
  O  O32  1  0.245  0.244  0.510  1.0
  O  O33  1  0.604  0.078  0.827  1.0
  O  O34  1  0.063  0.082  0.826  1.0
  O  O35  1  0.918  0.937  0.674  1.0
  O  O36  1  0.396  0.955  0.665  1.0
  O  O37  1  0.604  0.045  0.335  1.0
  O  O38  1  0.937  0.918  0.174  1.0
  O  O39  1  0.282  0.749  0.495  1.0
  O  O40  1  0.603  0.597  0.331  1.0
  O  O41  1  0.955  0.396  0.165  1.0
[/CIF]
.
The crystal structure described by Co7Sb2O12 is Spinel-like structured and crystallizes in the monoclinic C2/c space group. There are five inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form CoO4 tetrahedra that share corners with two equivalent Co(4)O6 octahedra, corners with two equivalent Co(5)O6 octahedra, corners with four equivalent Co(3)O6 octahedra, and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-62°. In the second Co site, Co(2) is bonded to two equivalent O(5) and two equivalent O(6) atoms to form CoO4 tetrahedra that share corners with two equivalent Co(4)O6 octahedra, corners with two equivalent Co(5)O6 octahedra, corners with four equivalent Co(3)O6 octahedra, and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-62°. In the third Co site, Co(3) is bonded to one O(1), one O(2), one O(5), one O(6), and two equivalent O(3) atoms to form CoO6 octahedra that share corners with two equivalent Co(2)O4 tetrahedra, corners with four equivalent Co(1)O4 tetrahedra,  an edgeedge with one Co(3)O6 octahedra,  an edgeedge with one Co(4)O6 octahedra,  an edgeedge with one Co(5)O6 octahedra, and edges with three equivalent Sb(1)O6 octahedra. In the fourth Co site, Co(4) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms to form CoO6 octahedra that share corners with two equivalent Co(2)O4 tetrahedra, corners with four equivalent Co(1)O4 tetrahedra, edges with two equivalent Co(3)O6 octahedra, edges with two equivalent Co(5)O6 octahedra, and edges with two equivalent Sb(1)O6 octahedra. In the fifth Co site, Co(5) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form CoO6 octahedra that share corners with two equivalent Co(2)O4 tetrahedra, corners with four equivalent Co(1)O4 tetrahedra, edges with two equivalent Co(3)O6 octahedra, edges with two equivalent Co(4)O6 octahedra, and edges with two equivalent Sb(1)O6 octahedra. Sb(1) is bonded to one O(3), one O(4), one O(5), one O(6), and two equivalent O(2) atoms to form SbO6 octahedra that share corners with two equivalent Co(2)O4 tetrahedra, corners with four equivalent Co(1)O4 tetrahedra,  an edgeedge with one Co(4)O6 octahedra,  an edgeedge with one Co(5)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, and edges with three equivalent Co(3)O6 octahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Co(1), one Co(3), one Co(4), and one Co(5) atom. In the second O site, O(2) is bonded to one Co(1), one Co(3), and two equivalent Sb(1) atoms to form distorted OCo2Sb2 trigonal pyramids that share  a cornercorner with one O(3)Co3Sb trigonal pyramid,  an edgeedge with one O(2)Co2Sb2 trigonal pyramid, and edges with two equivalent O(3)Co3Sb trigonal pyramids. In the third O site, O(3) is bonded to one Co(1), two equivalent Co(3), and one Sb(1) atom to form distorted OCo3Sb trigonal pyramids that share  a cornercorner with one O(2)Co2Sb2 trigonal pyramid,  an edgeedge with one O(3)Co3Sb trigonal pyramid, and edges with two equivalent O(2)Co2Sb2 trigonal pyramids. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Co(1), one Co(4), one Co(5), and one Sb(1) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Co(2), one Co(3), one Co(5), and one Sb(1) atom. In the sixth O site, O(6) is bonded in a rectangular see-saw-like geometry to one Co(2), one Co(3), one Co(4), and one Sb(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Co7(SbO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.079
_cell_length_b   6.079
_cell_length_c   13.308
_cell_angle_alpha   78.190
_cell_angle_beta   78.190
_cell_angle_gamma   90.387
_symmetry_Int_Tables_number   1
_cell_volume   470.546
_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
  Co  Co0  1  0.295  0.019  0.921  1.0
  Co  Co1  1  0.981  0.705  0.579  1.0
  Co  Co2  1  0.019  0.295  0.421  1.0
  Co  Co3  1  0.642  0.358  0.250  1.0
  Co  Co4  1  0.661  0.185  0.660  1.0
  Co  Co5  1  0.705  0.981  0.079  1.0
  Co  Co6  1  0.339  0.815  0.340  1.0
  Co  Co7  1  0.185  0.661  0.160  1.0
  Co  Co8  1  0.500  0.500  0.000  1.0
  Co  Co9  1  0.358  0.642  0.750  1.0
  Co  Co10  1  0.000  0.500  0.000  1.0
  Co  Co11  1  0.815  0.339  0.840  1.0
  Co  Co12  1  0.500  0.500  0.500  1.0
  Co  Co13  1  0.500  0.000  0.500  1.0
  Sb  Sb14  1  0.181  0.164  0.164  1.0
  Sb  Sb15  1  0.819  0.836  0.836  1.0
  Sb  Sb16  1  0.164  0.181  0.664  1.0
  Sb  Sb17  1  0.836  0.819  0.336  1.0
  O  O18  1  0.718  0.251  0.505  1.0
  O  O19  1  0.082  0.063  0.326  1.0
  O  O20  1  0.396  0.922  0.173  1.0
  O  O21  1  0.755  0.756  0.490  1.0
  O  O22  1  0.078  0.604  0.327  1.0
  O  O23  1  0.251  0.718  0.005  1.0
  O  O24  1  0.756  0.755  0.990  1.0
  O  O25  1  0.045  0.604  0.835  1.0
  O  O26  1  0.597  0.603  0.831  1.0
  O  O27  1  0.403  0.397  0.169  1.0
  O  O28  1  0.244  0.245  0.010  1.0
  O  O29  1  0.749  0.282  0.995  1.0
  O  O30  1  0.922  0.396  0.673  1.0
  O  O31  1  0.397  0.403  0.669  1.0
  O  O32  1  0.245  0.244  0.510  1.0
  O  O33  1  0.604  0.078  0.827  1.0
  O  O34  1  0.063  0.082  0.826  1.0
  O  O35  1  0.918  0.937  0.674  1.0
  O  O36  1  0.396  0.955  0.665  1.0
  O  O37  1  0.604  0.045  0.335  1.0
  O  O38  1  0.937  0.918  0.174  1.0
  O  O39  1  0.282  0.749  0.495  1.0
  O  O40  1  0.603  0.597  0.331  1.0
  O  O41  1  0.955  0.396  0.165  1.0
[/CIF]
.