The structure described by W2O5 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(2), one O(3), two equivalent O(1), and two equivalent O(4) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedra are not tilted. In the second W site, W(2) is bonded in a square co-planar geometry to one O(2), one O(3), and two equivalent O(1) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one W(1) and one W(2) atom. In the second O site, O(2) is bonded in a linear geometry to one W(1) and one W(2) atom. In the third O site, O(3) is bonded in a linear geometry to one W(1) and one W(2) atom. In the fourth O site, O(4) is bonded in a linear geometry to two equivalent W(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_W2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.830
_cell_length_b   5.463
_cell_length_c   5.463
_cell_angle_alpha   89.931
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   114.311
_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
  O  O0  1  0.500  0.247  0.753  1.0
  O  O1  1  0.500  0.753  0.247  1.0
  O  O2  1  0.500  0.245  0.245  1.0
  O  O3  1  0.500  0.755  0.755  1.0
  O  O4  1  1.000  0.500  0.500  1.0
  W  W5  1  0.500  0.500  0.500  1.0
  W  W6  1  0.500  0.000  0.000  1.0
[/CIF]
.
The structure described by W2O5 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(2), one O(3), two equivalent O(1), and two equivalent O(4) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedra are not tilted. In the second W site, W(2) is bonded in a square co-planar geometry to one O(2), one O(3), and two equivalent O(1) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a linear geometry to one W(1) and one W(2) atom. In the second O site, O(2) is bonded in a linear geometry to one W(1) and one W(2) atom. In the third O site, O(3) is bonded in a linear geometry to one W(1) and one W(2) atom. In the fourth O site, O(4) is bonded in a linear geometry to two equivalent W(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_W2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.830
_cell_length_b   5.463
_cell_length_c   5.463
_cell_angle_alpha   89.931
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   114.311
_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
  O  O0  1  0.500  0.247  0.753  1.0
  O  O1  1  0.500  0.753  0.247  1.0
  O  O2  1  0.500  0.245  0.245  1.0
  O  O3  1  0.500  0.755  0.755  1.0
  O  O4  1  1.000  0.500  0.500  1.0
  W  W5  1  0.500  0.500  0.500  1.0
  W  W6  1  0.500  0.000  0.000  1.0
[/CIF]
.