The crystal structure described by Fe2(WO4)3 crystallizes in the triclinic P-1 space group. There are three inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(12), one O(6), and one O(9) atom to form WO4 tetrahedra that share corners with two equivalent Fe(2)O6 octahedra and corners with three equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-60°. In the second W site, W(2) is bonded to one O(10), one O(3), one O(4), and one O(7) atom to form WO4 tetrahedra that share corners with two equivalent Fe(1)O6 octahedra and corners with two equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 18-56°. In the third W site, W(3) is bonded to one O(11), one O(2), one O(5), and one O(8) atom to form WO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra and corners with two equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 17-37°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(2), one O(6), one O(7), and two equivalent O(9) atoms to form FeO6 octahedra that share  a cornercorner with one W(3)O4 tetrahedra, corners with two equivalent W(2)O4 tetrahedra, corners with three equivalent W(1)O4 tetrahedra, and  an edgeedge with one Fe(1)O6 octahedra. In the second Fe site, Fe(2) is bonded to one O(3), one O(4), one O(5), one O(8), and two equivalent O(1) atoms to form FeO6 octahedra that share corners with two equivalent W(1)O4 tetrahedra, corners with two equivalent W(2)O4 tetrahedra, corners with two equivalent W(3)O4 tetrahedra, and  an edgeedge with one Fe(2)O6 octahedra. There are twelve inequivalent O sites. In the first O site, O(12) is bonded in a single-bond geometry to one W(1) atom. In the second O site, O(1) is bonded in a trigonal planar geometry to one W(1) and two equivalent Fe(2) atoms. In the third O site, O(2) is bonded in a linear geometry to one W(3) and one Fe(1) atom. In the fourth O site, O(3) is bonded in a bent 150 degrees geometry to one W(2) and one Fe(2) atom. In the fifth O site, O(4) is bonded in a bent 150 degrees geometry to one W(2) and one Fe(2) atom. In the sixth O site, O(5) is bonded in a bent 150 degrees geometry to one W(3) and one Fe(2) atom. In the seventh O site, O(6) is bonded in a bent 150 degrees geometry to one W(1) and one Fe(1) atom. In the eighth O site, O(7) is bonded in a bent 120 degrees geometry to one W(2) and one Fe(1) atom. In the ninth O site, O(8) is bonded in a bent 150 degrees geometry to one W(3) and one Fe(2) atom. In the tenth O site, O(9) is bonded in a distorted trigonal planar geometry to one W(1) and two equivalent Fe(1) atoms. In the eleventh O site, O(10) is bonded in a bent 120 degrees geometry to one W(2) and one Fe(1) atom. In the twelfth O site, O(11) is bonded in a single-bond geometry to one W(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe2(WO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.986
_cell_length_b   8.703
_cell_length_c   10.404
_cell_angle_alpha   108.211
_cell_angle_beta   103.568
_cell_angle_gamma   103.981
_symmetry_Int_Tables_number   1
_cell_volume   549.074
_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  0.376  0.959  0.608  1.0
  Fe  Fe1  1  0.624  0.041  0.392  1.0
  Fe  Fe2  1  0.048  0.204  0.015  1.0
  Fe  Fe3  1  0.952  0.796  0.985  1.0
  W  W4  1  0.883  0.903  0.665  1.0
  W  W5  1  0.117  0.097  0.335  1.0
  W  W6  1  0.211  0.670  0.262  1.0
  W  W7  1  0.789  0.330  0.738  1.0
  W  W8  1  0.598  0.258  0.133  1.0
  W  W9  1  0.402  0.742  0.867  1.0
  O  O10  1  0.068  0.056  0.140  1.0
  O  O11  1  0.932  0.944  0.860  1.0
  O  O12  1  0.568  0.133  0.246  1.0
  O  O13  1  0.432  0.867  0.754  1.0
  O  O14  1  0.161  0.442  0.167  1.0
  O  O15  1  0.839  0.558  0.833  1.0
  O  O16  1  0.976  0.256  0.837  1.0
  O  O17  1  0.024  0.744  0.163  1.0
  O  O18  1  0.234  0.807  0.970  1.0
  O  O19  1  0.766  0.193  0.030  1.0
  O  O20  1  0.878  0.003  0.364  1.0
  O  O21  1  0.122  0.997  0.636  1.0
  O  O22  1  0.534  0.212  0.733  1.0
  O  O23  1  0.466  0.788  0.267  1.0
  O  O24  1  0.335  0.222  0.017  1.0
  O  O25  1  0.665  0.778  0.983  1.0
  O  O26  1  0.340  0.040  0.428  1.0
  O  O27  1  0.660  0.960  0.572  1.0
  O  O28  1  0.225  0.726  0.448  1.0
  O  O29  1  0.775  0.274  0.552  1.0
  O  O30  1  0.721  0.477  0.244  1.0
  O  O31  1  0.279  0.523  0.756  1.0
  O  O32  1  0.180  0.319  0.416  1.0
  O  O33  1  0.820  0.681  0.584  1.0
[/CIF]
.
The crystal structure described by Fe2(WO4)3 crystallizes in the triclinic P-1 space group. There are three inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(12), one O(6), and one O(9) atom to form WO4 tetrahedra that share corners with two equivalent Fe(2)O6 octahedra and corners with three equivalent Fe(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 37-60°. In the second W site, W(2) is bonded to one O(10), one O(3), one O(4), and one O(7) atom to form WO4 tetrahedra that share corners with two equivalent Fe(1)O6 octahedra and corners with two equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 18-56°. In the third W site, W(3) is bonded to one O(11), one O(2), one O(5), and one O(8) atom to form WO4 tetrahedra that share  a cornercorner with one Fe(1)O6 octahedra and corners with two equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 17-37°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(2), one O(6), one O(7), and two equivalent O(9) atoms to form FeO6 octahedra that share  a cornercorner with one W(3)O4 tetrahedra, corners with two equivalent W(2)O4 tetrahedra, corners with three equivalent W(1)O4 tetrahedra, and  an edgeedge with one Fe(1)O6 octahedra. In the second Fe site, Fe(2) is bonded to one O(3), one O(4), one O(5), one O(8), and two equivalent O(1) atoms to form FeO6 octahedra that share corners with two equivalent W(1)O4 tetrahedra, corners with two equivalent W(2)O4 tetrahedra, corners with two equivalent W(3)O4 tetrahedra, and  an edgeedge with one Fe(2)O6 octahedra. There are twelve inequivalent O sites. In the first O site, O(12) is bonded in a single-bond geometry to one W(1) atom. In the second O site, O(1) is bonded in a trigonal planar geometry to one W(1) and two equivalent Fe(2) atoms. In the third O site, O(2) is bonded in a linear geometry to one W(3) and one Fe(1) atom. In the fourth O site, O(3) is bonded in a bent 150 degrees geometry to one W(2) and one Fe(2) atom. In the fifth O site, O(4) is bonded in a bent 150 degrees geometry to one W(2) and one Fe(2) atom. In the sixth O site, O(5) is bonded in a bent 150 degrees geometry to one W(3) and one Fe(2) atom. In the seventh O site, O(6) is bonded in a bent 150 degrees geometry to one W(1) and one Fe(1) atom. In the eighth O site, O(7) is bonded in a bent 120 degrees geometry to one W(2) and one Fe(1) atom. In the ninth O site, O(8) is bonded in a bent 150 degrees geometry to one W(3) and one Fe(2) atom. In the tenth O site, O(9) is bonded in a distorted trigonal planar geometry to one W(1) and two equivalent Fe(1) atoms. In the eleventh O site, O(10) is bonded in a bent 120 degrees geometry to one W(2) and one Fe(1) atom. In the twelfth O site, O(11) is bonded in a single-bond geometry to one W(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Fe2(WO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.986
_cell_length_b   8.703
_cell_length_c   10.404
_cell_angle_alpha   108.211
_cell_angle_beta   103.568
_cell_angle_gamma   103.981
_symmetry_Int_Tables_number   1
_cell_volume   549.074
_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  0.376  0.959  0.608  1.0
  Fe  Fe1  1  0.624  0.041  0.392  1.0
  Fe  Fe2  1  0.048  0.204  0.015  1.0
  Fe  Fe3  1  0.952  0.796  0.985  1.0
  W  W4  1  0.883  0.903  0.665  1.0
  W  W5  1  0.117  0.097  0.335  1.0
  W  W6  1  0.211  0.670  0.262  1.0
  W  W7  1  0.789  0.330  0.738  1.0
  W  W8  1  0.598  0.258  0.133  1.0
  W  W9  1  0.402  0.742  0.867  1.0
  O  O10  1  0.068  0.056  0.140  1.0
  O  O11  1  0.932  0.944  0.860  1.0
  O  O12  1  0.568  0.133  0.246  1.0
  O  O13  1  0.432  0.867  0.754  1.0
  O  O14  1  0.161  0.442  0.167  1.0
  O  O15  1  0.839  0.558  0.833  1.0
  O  O16  1  0.976  0.256  0.837  1.0
  O  O17  1  0.024  0.744  0.163  1.0
  O  O18  1  0.234  0.807  0.970  1.0
  O  O19  1  0.766  0.193  0.030  1.0
  O  O20  1  0.878  0.003  0.364  1.0
  O  O21  1  0.122  0.997  0.636  1.0
  O  O22  1  0.534  0.212  0.733  1.0
  O  O23  1  0.466  0.788  0.267  1.0
  O  O24  1  0.335  0.222  0.017  1.0
  O  O25  1  0.665  0.778  0.983  1.0
  O  O26  1  0.340  0.040  0.428  1.0
  O  O27  1  0.660  0.960  0.572  1.0
  O  O28  1  0.225  0.726  0.448  1.0
  O  O29  1  0.775  0.274  0.552  1.0
  O  O30  1  0.721  0.477  0.244  1.0
  O  O31  1  0.279  0.523  0.756  1.0
  O  O32  1  0.180  0.319  0.416  1.0
  O  O33  1  0.820  0.681  0.584  1.0
[/CIF]
.