The structure described by W5O7 crystallizes in the orthorhombic Cmcm space group. There are three inequivalent W sites. In the first W site, W(1) is bonded to one O(2), two equivalent O(3), and three equivalent O(1) atoms to form a mixture of corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles are 9°. In the second W site, W(2) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form a mixture of distorted corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles are 9°. In the third W site, W(3) is bonded in a 6-coordinate geometry to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(4) is bonded in a bent 120 degrees geometry to two equivalent W(3) atoms. In the second O site, O(1) is bonded to one W(3), two equivalent W(2), and three equivalent W(1) atoms to form OW6 octahedra that share corners with two equivalent O(1)W6 octahedra, corners with two equivalent O(3)W5 square pyramids, edges with five equivalent O(1)W6 octahedra, and edges with five equivalent O(3)W5 square pyramids. The corner-sharing octahedra are not tilted. In the third O site, O(2) is bonded in a trigonal non-coplanar geometry to one W(1) and two equivalent W(3) atoms. In the fourth O site, O(3) is bonded to one W(2), two equivalent W(1), and two equivalent W(3) atoms to form OW5 square pyramids that share corners with two equivalent O(1)W6 octahedra,  a cornercorner with one O(3)W5 square pyramid, edges with five equivalent O(1)W6 octahedra, and edges with two equivalent O(3)W5 square pyramids. The corner-sharing octahedral tilt angles are 9°. is represented by the CIF card [CIF]
data_W5O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.943
_cell_length_b   5.943
_cell_length_c   18.690
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   147.062
_symmetry_Int_Tables_number   1
_cell_volume   358.941
_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
  W  W0  1  0.729  0.271  0.578  1.0
  W  W1  1  0.000  0.000  0.500  1.0
  W  W2  1  0.000  0.000  0.000  1.0
  W  W3  1  0.271  0.729  0.422  1.0
  W  W4  1  0.271  0.729  0.078  1.0
  W  W5  1  0.729  0.271  0.922  1.0
  W  W6  1  0.539  0.461  0.158  1.0
  W  W7  1  0.461  0.539  0.842  1.0
  W  W8  1  0.461  0.539  0.658  1.0
  W  W9  1  0.539  0.461  0.342  1.0
  O  O10  1  0.342  0.658  0.961  1.0
  O  O11  1  0.658  0.342  0.039  1.0
  O  O12  1  0.658  0.342  0.461  1.0
  O  O13  1  0.342  0.658  0.539  1.0
  O  O14  1  0.853  0.147  0.838  1.0
  O  O15  1  0.147  0.853  0.162  1.0
  O  O16  1  0.147  0.853  0.338  1.0
  O  O17  1  0.853  0.147  0.662  1.0
  O  O18  1  0.103  0.897  0.899  1.0
  O  O19  1  0.897  0.103  0.101  1.0
  O  O20  1  0.897  0.103  0.399  1.0
  O  O21  1  0.103  0.897  0.601  1.0
  O  O22  1  0.551  0.449  0.750  1.0
  O  O23  1  0.449  0.551  0.250  1.0
[/CIF]
.
The structure described by W5O7 crystallizes in the orthorhombic Cmcm space group. There are three inequivalent W sites. In the first W site, W(1) is bonded to one O(2), two equivalent O(3), and three equivalent O(1) atoms to form a mixture of corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles are 9°. In the second W site, W(2) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form a mixture of distorted corner and edge-sharing WO6 octahedra. The corner-sharing octahedral tilt angles are 9°. In the third W site, W(3) is bonded in a 6-coordinate geometry to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(4) is bonded in a bent 120 degrees geometry to two equivalent W(3) atoms. In the second O site, O(1) is bonded to one W(3), two equivalent W(2), and three equivalent W(1) atoms to form OW6 octahedra that share corners with two equivalent O(1)W6 octahedra, corners with two equivalent O(3)W5 square pyramids, edges with five equivalent O(1)W6 octahedra, and edges with five equivalent O(3)W5 square pyramids. The corner-sharing octahedra are not tilted. In the third O site, O(2) is bonded in a trigonal non-coplanar geometry to one W(1) and two equivalent W(3) atoms. In the fourth O site, O(3) is bonded to one W(2), two equivalent W(1), and two equivalent W(3) atoms to form OW5 square pyramids that share corners with two equivalent O(1)W6 octahedra,  a cornercorner with one O(3)W5 square pyramid, edges with five equivalent O(1)W6 octahedra, and edges with two equivalent O(3)W5 square pyramids. The corner-sharing octahedral tilt angles are 9°. is represented by the CIF card [CIF]
data_W5O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.943
_cell_length_b   5.943
_cell_length_c   18.690
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   147.062
_symmetry_Int_Tables_number   1
_cell_volume   358.941
_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
  W  W0  1  0.729  0.271  0.578  1.0
  W  W1  1  0.000  0.000  0.500  1.0
  W  W2  1  0.000  0.000  0.000  1.0
  W  W3  1  0.271  0.729  0.422  1.0
  W  W4  1  0.271  0.729  0.078  1.0
  W  W5  1  0.729  0.271  0.922  1.0
  W  W6  1  0.539  0.461  0.158  1.0
  W  W7  1  0.461  0.539  0.842  1.0
  W  W8  1  0.461  0.539  0.658  1.0
  W  W9  1  0.539  0.461  0.342  1.0
  O  O10  1  0.342  0.658  0.961  1.0
  O  O11  1  0.658  0.342  0.039  1.0
  O  O12  1  0.658  0.342  0.461  1.0
  O  O13  1  0.342  0.658  0.539  1.0
  O  O14  1  0.853  0.147  0.838  1.0
  O  O15  1  0.147  0.853  0.162  1.0
  O  O16  1  0.147  0.853  0.338  1.0
  O  O17  1  0.853  0.147  0.662  1.0
  O  O18  1  0.103  0.897  0.899  1.0
  O  O19  1  0.897  0.103  0.101  1.0
  O  O20  1  0.897  0.103  0.399  1.0
  O  O21  1  0.103  0.897  0.601  1.0
  O  O22  1  0.551  0.449  0.750  1.0
  O  O23  1  0.449  0.551  0.250  1.0
[/CIF]
.