The crystal structure described by Fe(PO3)4 crystallizes in the monoclinic P2_1 space group. Fe(1) is bonded to one O(1), one O(10), one O(11), one O(7), one O(8), and one O(9) atom to form FeO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(10), one O(3), one O(4), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles are 42°. In the second P site, P(2) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Fe(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-48°. In the third P site, P(3) is bonded to one O(2), one O(5), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Fe(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-48°. In the fourth P site, P(4) is bonded to one O(11), one O(12), one O(2), and one O(3) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 47°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Fe(1) and one P(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(3) and one P(4) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one P(1) and one P(4) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one P(2) and one P(3) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one P(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Fe(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(3) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Fe(1) and one P(3) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(1) atom. In the eleventh O site, O(11) is bonded in a distorted bent 120 degrees geometry to one Fe(1) and one P(4) atom. In the twelfth O site, O(12) is bonded in a single-bond geometry to one P(4) atom. is represented by the CIF card [CIF]
data_Fe(PO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.605
_cell_length_b   5.266
_cell_length_c   7.482
_cell_angle_alpha   81.342
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   529.841
_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
  Fe  Fe0  1  0.234  0.493  0.513  1.0
  Fe  Fe1  1  0.734  0.507  0.487  1.0
  P  P2  1  0.175  0.138  0.898  1.0
  P  P3  1  0.597  0.020  0.438  1.0
  P  P4  1  0.873  0.987  0.552  1.0
  P  P5  1  0.097  0.980  0.562  1.0
  P  P6  1  0.675  0.862  0.102  1.0
  P  P7  1  0.373  0.013  0.448  1.0
  P  P8  1  0.819  0.208  0.874  1.0
  P  P9  1  0.319  0.792  0.126  1.0
  O  O10  1  0.612  0.285  0.484  1.0
  O  O11  1  0.352  0.021  0.233  1.0
  O  O12  1  0.852  0.979  0.767  1.0
  O  O13  1  0.267  0.942  0.953  1.0
  O  O14  1  0.110  0.969  0.777  1.0
  O  O15  1  0.485  0.936  0.469  1.0
  O  O16  1  0.618  0.827  0.937  1.0
  O  O17  1  0.656  0.804  0.540  1.0
  O  O18  1  0.317  0.794  0.554  1.0
  O  O19  1  0.858  0.721  0.508  1.0
  O  O20  1  0.112  0.715  0.516  1.0
  O  O21  1  0.719  0.633  0.222  1.0
  O  O22  1  0.247  0.615  0.239  1.0
  O  O23  1  0.407  0.647  0.069  1.0
  O  O24  1  0.907  0.353  0.931  1.0
  O  O25  1  0.610  0.031  0.223  1.0
  O  O26  1  0.219  0.367  0.778  1.0
  O  O27  1  0.747  0.385  0.761  1.0
  O  O28  1  0.358  0.279  0.492  1.0
  O  O29  1  0.817  0.206  0.446  1.0
  O  O30  1  0.156  0.196  0.460  1.0
  O  O31  1  0.118  0.173  0.063  1.0
  O  O32  1  0.985  0.064  0.531  1.0
  O  O33  1  0.767  0.058  0.047  1.0
[/CIF]
.
The crystal structure described by Fe(PO3)4 crystallizes in the monoclinic P2_1 space group. Fe(1) is bonded to one O(1), one O(10), one O(11), one O(7), one O(8), and one O(9) atom to form FeO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(4)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(10), one O(3), one O(4), and one O(6) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles are 42°. In the second P site, P(2) is bonded to one O(1), one O(4), one O(5), and one O(7) atom to form PO4 tetrahedra that share corners with two equivalent Fe(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 42-48°. In the third P site, P(3) is bonded to one O(2), one O(5), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Fe(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-48°. In the fourth P site, P(4) is bonded to one O(11), one O(12), one O(2), and one O(3) atom to form PO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 47°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 120 degrees geometry to one Fe(1) and one P(2) atom. In the second O site, O(2) is bonded in a bent 120 degrees geometry to one P(3) and one P(4) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one P(1) and one P(4) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one P(2) and one P(3) atom. In the sixth O site, O(6) is bonded in a single-bond geometry to one P(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 150 degrees geometry to one Fe(1) and one P(2) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(3) atom. In the ninth O site, O(9) is bonded in a distorted bent 120 degrees geometry to one Fe(1) and one P(3) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one Fe(1) and one P(1) atom. In the eleventh O site, O(11) is bonded in a distorted bent 120 degrees geometry to one Fe(1) and one P(4) atom. In the twelfth O site, O(12) is bonded in a single-bond geometry to one P(4) atom. is represented by the CIF card [CIF]
data_Fe(PO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.605
_cell_length_b   5.266
_cell_length_c   7.482
_cell_angle_alpha   81.342
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   529.841
_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
  Fe  Fe0  1  0.234  0.493  0.513  1.0
  Fe  Fe1  1  0.734  0.507  0.487  1.0
  P  P2  1  0.175  0.138  0.898  1.0
  P  P3  1  0.597  0.020  0.438  1.0
  P  P4  1  0.873  0.987  0.552  1.0
  P  P5  1  0.097  0.980  0.562  1.0
  P  P6  1  0.675  0.862  0.102  1.0
  P  P7  1  0.373  0.013  0.448  1.0
  P  P8  1  0.819  0.208  0.874  1.0
  P  P9  1  0.319  0.792  0.126  1.0
  O  O10  1  0.612  0.285  0.484  1.0
  O  O11  1  0.352  0.021  0.233  1.0
  O  O12  1  0.852  0.979  0.767  1.0
  O  O13  1  0.267  0.942  0.953  1.0
  O  O14  1  0.110  0.969  0.777  1.0
  O  O15  1  0.485  0.936  0.469  1.0
  O  O16  1  0.618  0.827  0.937  1.0
  O  O17  1  0.656  0.804  0.540  1.0
  O  O18  1  0.317  0.794  0.554  1.0
  O  O19  1  0.858  0.721  0.508  1.0
  O  O20  1  0.112  0.715  0.516  1.0
  O  O21  1  0.719  0.633  0.222  1.0
  O  O22  1  0.247  0.615  0.239  1.0
  O  O23  1  0.407  0.647  0.069  1.0
  O  O24  1  0.907  0.353  0.931  1.0
  O  O25  1  0.610  0.031  0.223  1.0
  O  O26  1  0.219  0.367  0.778  1.0
  O  O27  1  0.747  0.385  0.761  1.0
  O  O28  1  0.358  0.279  0.492  1.0
  O  O29  1  0.817  0.206  0.446  1.0
  O  O30  1  0.156  0.196  0.460  1.0
  O  O31  1  0.118  0.173  0.063  1.0
  O  O32  1  0.985  0.064  0.531  1.0
  O  O33  1  0.767  0.058  0.047  1.0
[/CIF]
.