The crystal structure described by Sb(PO3)4 crystallizes in the monoclinic C2/c space group. Sb(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form corner-sharing PO4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Sb(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Sb(1) and one P(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Sb(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Sb(1) and one P(1) atom. is represented by the CIF file [CIF]
data_Sb(PO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.721
_cell_length_b   8.721
_cell_length_c   9.283
_cell_angle_alpha   58.943
_cell_angle_beta   58.943
_cell_angle_gamma   48.434
_symmetry_Int_Tables_number   1
_cell_volume   435.578
_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  0.797  0.203  0.250  1.0
  Sb  Sb1  1  0.203  0.797  0.750  1.0
  P  P2  1  0.391  0.335  0.124  1.0
  P  P3  1  0.727  0.989  0.687  1.0
  P  P4  1  0.989  0.727  0.187  1.0
  P  P5  1  0.665  0.609  0.376  1.0
  P  P6  1  0.335  0.391  0.624  1.0
  P  P7  1  0.011  0.273  0.813  1.0
  P  P8  1  0.273  0.011  0.313  1.0
  P  P9  1  0.609  0.665  0.876  1.0
  O  O10  1  0.576  0.184  0.205  1.0
  O  O11  1  0.245  0.014  0.488  1.0
  O  O12  1  0.301  0.200  0.163  1.0
  O  O13  1  0.014  0.109  0.798  1.0
  O  O14  1  0.891  0.986  0.702  1.0
  O  O15  1  0.195  0.500  0.241  1.0
  O  O16  1  0.816  0.424  0.295  1.0
  O  O17  1  0.500  0.195  0.741  1.0
  O  O18  1  0.986  0.755  0.012  1.0
  O  O19  1  0.800  0.699  0.337  1.0
  O  O20  1  0.554  0.577  0.567  1.0
  O  O21  1  0.423  0.446  0.933  1.0
  O  O22  1  0.577  0.554  0.067  1.0
  O  O23  1  0.446  0.423  0.433  1.0
  O  O24  1  0.200  0.301  0.663  1.0
  O  O25  1  0.014  0.245  0.988  1.0
  O  O26  1  0.500  0.805  0.259  1.0
  O  O27  1  0.184  0.576  0.705  1.0
  O  O28  1  0.805  0.500  0.759  1.0
  O  O29  1  0.109  0.014  0.298  1.0
  O  O30  1  0.986  0.891  0.202  1.0
  O  O31  1  0.699  0.800  0.837  1.0
  O  O32  1  0.755  0.986  0.512  1.0
  O  O33  1  0.424  0.816  0.795  1.0
[/CIF]
.
The crystal structure described by Sb(PO3)4 crystallizes in the monoclinic C2/c space group. Sb(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form corner-sharing PO4 tetrahedra. In the second P site, P(2) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form corner-sharing PO4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one Sb(1) and one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Sb(1) and one P(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Sb(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the sixth O site, O(6) is bonded in a distorted single-bond geometry to one Sb(1) and one P(1) atom. is represented by the CIF file [CIF]
data_Sb(PO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.721
_cell_length_b   8.721
_cell_length_c   9.283
_cell_angle_alpha   58.943
_cell_angle_beta   58.943
_cell_angle_gamma   48.434
_symmetry_Int_Tables_number   1
_cell_volume   435.578
_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  0.797  0.203  0.250  1.0
  Sb  Sb1  1  0.203  0.797  0.750  1.0
  P  P2  1  0.391  0.335  0.124  1.0
  P  P3  1  0.727  0.989  0.687  1.0
  P  P4  1  0.989  0.727  0.187  1.0
  P  P5  1  0.665  0.609  0.376  1.0
  P  P6  1  0.335  0.391  0.624  1.0
  P  P7  1  0.011  0.273  0.813  1.0
  P  P8  1  0.273  0.011  0.313  1.0
  P  P9  1  0.609  0.665  0.876  1.0
  O  O10  1  0.576  0.184  0.205  1.0
  O  O11  1  0.245  0.014  0.488  1.0
  O  O12  1  0.301  0.200  0.163  1.0
  O  O13  1  0.014  0.109  0.798  1.0
  O  O14  1  0.891  0.986  0.702  1.0
  O  O15  1  0.195  0.500  0.241  1.0
  O  O16  1  0.816  0.424  0.295  1.0
  O  O17  1  0.500  0.195  0.741  1.0
  O  O18  1  0.986  0.755  0.012  1.0
  O  O19  1  0.800  0.699  0.337  1.0
  O  O20  1  0.554  0.577  0.567  1.0
  O  O21  1  0.423  0.446  0.933  1.0
  O  O22  1  0.577  0.554  0.067  1.0
  O  O23  1  0.446  0.423  0.433  1.0
  O  O24  1  0.200  0.301  0.663  1.0
  O  O25  1  0.014  0.245  0.988  1.0
  O  O26  1  0.500  0.805  0.259  1.0
  O  O27  1  0.184  0.576  0.705  1.0
  O  O28  1  0.805  0.500  0.759  1.0
  O  O29  1  0.109  0.014  0.298  1.0
  O  O30  1  0.986  0.891  0.202  1.0
  O  O31  1  0.699  0.800  0.837  1.0
  O  O32  1  0.755  0.986  0.512  1.0
  O  O33  1  0.424  0.816  0.795  1.0
[/CIF]
.