The structure described by Sb9PO25 crystallizes in the tetragonal I-4 space group. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing SbO6 octahedra. The corner-sharing octahedral tilt angles range from 0-24°. In the second Sb site, Sb(2) is bonded to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms to form a mixture of corner and edge-sharing SbO6 octahedra. The corner-sharing octahedral tilt angles range from 11-34°. In the third Sb site, Sb(3) is bonded to one O(3), one O(4), one O(5), one O(7), and two equivalent O(6) atoms to form SbO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra, corners with two equivalent Sb(3)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and edges with two equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-30°. P(1) is bonded to four equivalent O(7) atoms to form PO4 tetrahedra that share corners with four equivalent Sb(3)O6 octahedra. The corner-sharing octahedral tilt angles are 42°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent Sb(1) atoms. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Sb(1) and one Sb(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Sb(2) and one Sb(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Sb(3) and two equivalent Sb(2) atoms. In the fifth O site, O(5) is bonded in a linear geometry to one Sb(2) and one Sb(3) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Sb(2) and two equivalent Sb(3) atoms. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Sb(3) and one P(1) atom. is represented by the CIF card [CIF]
data_Sb9PO25
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.114
_cell_length_b   11.114
_cell_length_c   11.114
_cell_angle_alpha   91.820
_cell_angle_beta   91.820
_cell_angle_gamma   159.470
_symmetry_Int_Tables_number   1
_cell_volume   473.698
_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
  Sb  Sb0  1  0.000  0.000  0.000  1.0
  Sb  Sb1  1  0.913  0.239  0.118  1.0
  Sb  Sb2  1  0.100  0.307  0.448  1.0
  Sb  Sb3  1  0.347  0.900  0.207  1.0
  Sb  Sb4  1  0.761  0.879  0.674  1.0
  Sb  Sb5  1  0.205  0.087  0.326  1.0
  Sb  Sb6  1  0.693  0.141  0.793  1.0
  Sb  Sb7  1  0.859  0.653  0.552  1.0
  Sb  Sb8  1  0.121  0.795  0.882  1.0
  P  P9  1  0.750  0.250  0.500  1.0
  O  O10  1  0.500  0.500  0.000  1.0
  O  O11  1  0.920  0.099  0.027  1.0
  O  O12  1  0.164  0.198  0.415  1.0
  O  O13  1  0.409  0.778  0.151  1.0
  O  O14  1  0.038  0.290  0.281  1.0
  O  O15  1  0.251  0.836  0.034  1.0
  O  O16  1  0.872  0.375  0.204  1.0
  O  O17  1  0.625  0.829  0.496  1.0
  O  O18  1  0.222  0.373  0.630  1.0
  O  O19  1  0.475  0.962  0.384  1.0
  O  O20  1  0.901  0.927  0.820  1.0
  O  O21  1  0.038  0.422  0.513  1.0
  O  O22  1  0.243  0.962  0.251  1.0
  O  O23  1  0.710  0.991  0.749  1.0
  O  O24  1  0.909  0.525  0.487  1.0
  O  O25  1  0.107  0.080  0.180  1.0
  O  O26  1  0.578  0.091  0.616  1.0
  O  O27  1  0.742  0.591  0.370  1.0
  O  O28  1  0.332  0.129  0.504  1.0
  O  O29  1  0.171  0.668  0.796  1.0
  O  O30  1  0.802  0.217  0.966  1.0
  O  O31  1  0.009  0.757  0.719  1.0
  O  O32  1  0.627  0.258  0.849  1.0
  O  O33  1  0.783  0.749  0.585  1.0
  O  O34  1  0.073  0.893  0.973  1.0
[/CIF]
.
The structure described by Sb9PO25 crystallizes in the tetragonal I-4 space group. There are three inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form corner-sharing SbO6 octahedra. The corner-sharing octahedral tilt angles range from 0-24°. In the second Sb site, Sb(2) is bonded to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms to form a mixture of corner and edge-sharing SbO6 octahedra. The corner-sharing octahedral tilt angles range from 11-34°. In the third Sb site, Sb(3) is bonded to one O(3), one O(4), one O(5), one O(7), and two equivalent O(6) atoms to form SbO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra, corners with two equivalent Sb(3)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and edges with two equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 11-30°. P(1) is bonded to four equivalent O(7) atoms to form PO4 tetrahedra that share corners with four equivalent Sb(3)O6 octahedra. The corner-sharing octahedral tilt angles are 42°. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to two equivalent Sb(1) atoms. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one Sb(1) and one Sb(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Sb(2) and one Sb(3) atom. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Sb(3) and two equivalent Sb(2) atoms. In the fifth O site, O(5) is bonded in a linear geometry to one Sb(2) and one Sb(3) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Sb(2) and two equivalent Sb(3) atoms. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Sb(3) and one P(1) atom. is represented by the CIF card [CIF]
data_Sb9PO25
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.114
_cell_length_b   11.114
_cell_length_c   11.114
_cell_angle_alpha   91.820
_cell_angle_beta   91.820
_cell_angle_gamma   159.470
_symmetry_Int_Tables_number   1
_cell_volume   473.698
_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
  Sb  Sb0  1  0.000  0.000  0.000  1.0
  Sb  Sb1  1  0.913  0.239  0.118  1.0
  Sb  Sb2  1  0.100  0.307  0.448  1.0
  Sb  Sb3  1  0.347  0.900  0.207  1.0
  Sb  Sb4  1  0.761  0.879  0.674  1.0
  Sb  Sb5  1  0.205  0.087  0.326  1.0
  Sb  Sb6  1  0.693  0.141  0.793  1.0
  Sb  Sb7  1  0.859  0.653  0.552  1.0
  Sb  Sb8  1  0.121  0.795  0.882  1.0
  P  P9  1  0.750  0.250  0.500  1.0
  O  O10  1  0.500  0.500  0.000  1.0
  O  O11  1  0.920  0.099  0.027  1.0
  O  O12  1  0.164  0.198  0.415  1.0
  O  O13  1  0.409  0.778  0.151  1.0
  O  O14  1  0.038  0.290  0.281  1.0
  O  O15  1  0.251  0.836  0.034  1.0
  O  O16  1  0.872  0.375  0.204  1.0
  O  O17  1  0.625  0.829  0.496  1.0
  O  O18  1  0.222  0.373  0.630  1.0
  O  O19  1  0.475  0.962  0.384  1.0
  O  O20  1  0.901  0.927  0.820  1.0
  O  O21  1  0.038  0.422  0.513  1.0
  O  O22  1  0.243  0.962  0.251  1.0
  O  O23  1  0.710  0.991  0.749  1.0
  O  O24  1  0.909  0.525  0.487  1.0
  O  O25  1  0.107  0.080  0.180  1.0
  O  O26  1  0.578  0.091  0.616  1.0
  O  O27  1  0.742  0.591  0.370  1.0
  O  O28  1  0.332  0.129  0.504  1.0
  O  O29  1  0.171  0.668  0.796  1.0
  O  O30  1  0.802  0.217  0.966  1.0
  O  O31  1  0.009  0.757  0.719  1.0
  O  O32  1  0.627  0.258  0.849  1.0
  O  O33  1  0.783  0.749  0.585  1.0
  O  O34  1  0.073  0.893  0.973  1.0
[/CIF]
.