The crystal structure described by WO3 crystallizes in the triclinic P1 space group. There are seven inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(10), one O(2), one O(4), one O(5), and one O(8) atom to form WO6 octahedra that share  a cornercorner with one W(2)O6 octahedra,  a cornercorner with one W(4)O6 octahedra,  a cornercorner with one W(6)O6 octahedra, corners with two equivalent W(7)O6 octahedra, and  a cornercorner with one W(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 19-40°. In the second W site, W(2) is bonded to one O(1), one O(14), one O(17), one O(21), one O(6), and one O(9) atom to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 31-39°. In the third W site, W(3) is bonded to one O(10), one O(11), one O(12), one O(13), and one O(7) atom to form distorted corner-sharing WO5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 28-37°. In the fourth W site, W(4) is bonded to one O(12), one O(14), one O(15), one O(16), one O(2), and one O(3) atom to form WO6 octahedra that share  a cornercorner with one W(1)O6 octahedra,  a cornercorner with one W(2)O6 octahedra,  a cornercorner with one W(6)O6 octahedra, corners with two equivalent W(5)O6 octahedra, and  a cornercorner with one W(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 19-38°. In the fifth W site, W(5) is bonded to one O(13), one O(15), one O(16), one O(18), one O(20), and one O(21) atom to form WO6 octahedra that share  a cornercorner with one W(2)O6 octahedra,  a cornercorner with one W(6)O6 octahedra,  a cornercorner with one W(7)O6 octahedra, corners with two equivalent W(4)O6 octahedra, and  a cornercorner with one W(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 19-38°. In the sixth W site, W(6) is bonded to one O(17), one O(18), one O(19), one O(3), one O(4), and one O(6) atom to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 32-40°. In the seventh W site, W(7) is bonded to one O(11), one O(19), one O(20), one O(5), one O(8), and one O(9) atom to form WO6 octahedra that share  a cornercorner with one W(2)O6 octahedra,  a cornercorner with one W(5)O6 octahedra,  a cornercorner with one W(6)O6 octahedra, corners with two equivalent W(1)O6 octahedra, and  a cornercorner with one W(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 19-40°. There are twenty-one inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one W(1) and one W(2) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one W(1) and one W(4) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one W(4) and one W(6) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one W(1) and one W(6) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one W(1) and one W(7) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one W(2) and one W(6) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one W(3) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one W(1) and one W(7) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one W(2) and one W(7) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one W(1) and one W(3) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one W(3) and one W(7) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one W(3) and one W(4) atom. In the thirteenth O site, O(13) is bonded in a bent 150 degrees geometry to one W(3) and one W(5) atom. In the fourteenth O site, O(14) is bonded in a bent 150 degrees geometry to one W(2) and one W(4) atom. In the fifteenth O site, O(15) is bonded in a bent 150 degrees geometry to one W(4) and one W(5) atom. In the sixteenth O site, O(16) is bonded in a bent 150 degrees geometry to one W(4) and one W(5) atom. In the seventeenth O site, O(17) is bonded in a bent 150 degrees geometry to one W(2) and one W(6) atom. In the eighteenth O site, O(18) is bonded in a bent 150 degrees geometry to one W(5) and one W(6) atom. In the nineteenth O site, O(19) is bonded in a bent 150 degrees geometry to one W(6) and one W(7) atom. In the twentieth O site, O(20) is bonded in a bent 150 degrees geometry to one W(5) and one W(7) atom. In the twenty-first O site, O(21) is bonded in a bent 150 degrees geometry to one W(2) and one W(5) atom. is represented by the CIF card [CIF]
data_WO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.402
_cell_length_b   7.580
_cell_length_c   8.435
_cell_angle_alpha   101.275
_cell_angle_beta   90.100
_cell_angle_gamma   90.055
_symmetry_Int_Tables_number   1
_cell_volume   464.083
_cell_formula_units_Z   7
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  0.749  0.183  0.203  1.0
  W  W1  1  0.500  0.524  0.501  1.0
  W  W2  1  0.999  0.449  0.946  1.0
  W  W3  1  0.751  0.815  0.824  1.0
  W  W4  1  0.250  0.814  0.823  1.0
  W  W5  1  0.500  0.022  0.521  1.0
  W  W6  1  0.251  0.182  0.201  1.0
  O  O7  1  0.683  0.394  0.358  1.0
  O  O8  1  0.792  0.993  0.014  1.0
  O  O9  1  0.680  0.968  0.673  1.0
  O  O10  1  0.682  0.035  0.355  1.0
  O  O11  1  0.500  0.174  0.130  1.0
  O  O12  1  0.500  0.267  0.585  1.0
  O  O13  1  0.996  0.317  0.753  1.0
  O  O14  1  0.000  0.175  0.266  1.0
  O  O15  1  0.318  0.394  0.356  1.0
  O  O16  1  0.821  0.346  0.065  1.0
  O  O17  1  0.178  0.343  0.062  1.0
  O  O18  1  0.823  0.635  0.942  1.0
  O  O19  1  0.177  0.633  0.940  1.0
  O  O20  1  0.684  0.608  0.654  1.0
  O  O21  1  0.000  0.826  0.755  1.0
  O  O22  1  0.500  0.814  0.889  1.0
  O  O23  1  0.500  0.739  0.429  1.0
  O  O24  1  0.320  0.967  0.673  1.0
  O  O25  1  0.318  0.034  0.354  1.0
  O  O26  1  0.208  0.991  0.014  1.0
  O  O27  1  0.315  0.608  0.653  1.0
[/CIF]
.
The crystal structure described by WO3 crystallizes in the triclinic P1 space group. There are seven inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(10), one O(2), one O(4), one O(5), and one O(8) atom to form WO6 octahedra that share  a cornercorner with one W(2)O6 octahedra,  a cornercorner with one W(4)O6 octahedra,  a cornercorner with one W(6)O6 octahedra, corners with two equivalent W(7)O6 octahedra, and  a cornercorner with one W(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 19-40°. In the second W site, W(2) is bonded to one O(1), one O(14), one O(17), one O(21), one O(6), and one O(9) atom to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 31-39°. In the third W site, W(3) is bonded to one O(10), one O(11), one O(12), one O(13), and one O(7) atom to form distorted corner-sharing WO5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 28-37°. In the fourth W site, W(4) is bonded to one O(12), one O(14), one O(15), one O(16), one O(2), and one O(3) atom to form WO6 octahedra that share  a cornercorner with one W(1)O6 octahedra,  a cornercorner with one W(2)O6 octahedra,  a cornercorner with one W(6)O6 octahedra, corners with two equivalent W(5)O6 octahedra, and  a cornercorner with one W(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 19-38°. In the fifth W site, W(5) is bonded to one O(13), one O(15), one O(16), one O(18), one O(20), and one O(21) atom to form WO6 octahedra that share  a cornercorner with one W(2)O6 octahedra,  a cornercorner with one W(6)O6 octahedra,  a cornercorner with one W(7)O6 octahedra, corners with two equivalent W(4)O6 octahedra, and  a cornercorner with one W(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 19-38°. In the sixth W site, W(6) is bonded to one O(17), one O(18), one O(19), one O(3), one O(4), and one O(6) atom to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 32-40°. In the seventh W site, W(7) is bonded to one O(11), one O(19), one O(20), one O(5), one O(8), and one O(9) atom to form WO6 octahedra that share  a cornercorner with one W(2)O6 octahedra,  a cornercorner with one W(5)O6 octahedra,  a cornercorner with one W(6)O6 octahedra, corners with two equivalent W(1)O6 octahedra, and  a cornercorner with one W(3)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 19-40°. There are twenty-one inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one W(1) and one W(2) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one W(1) and one W(4) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one W(4) and one W(6) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one W(1) and one W(6) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one W(1) and one W(7) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one W(2) and one W(6) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one W(3) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one W(1) and one W(7) atom. In the ninth O site, O(9) is bonded in a bent 150 degrees geometry to one W(2) and one W(7) atom. In the tenth O site, O(10) is bonded in a bent 150 degrees geometry to one W(1) and one W(3) atom. In the eleventh O site, O(11) is bonded in a bent 150 degrees geometry to one W(3) and one W(7) atom. In the twelfth O site, O(12) is bonded in a bent 150 degrees geometry to one W(3) and one W(4) atom. In the thirteenth O site, O(13) is bonded in a bent 150 degrees geometry to one W(3) and one W(5) atom. In the fourteenth O site, O(14) is bonded in a bent 150 degrees geometry to one W(2) and one W(4) atom. In the fifteenth O site, O(15) is bonded in a bent 150 degrees geometry to one W(4) and one W(5) atom. In the sixteenth O site, O(16) is bonded in a bent 150 degrees geometry to one W(4) and one W(5) atom. In the seventeenth O site, O(17) is bonded in a bent 150 degrees geometry to one W(2) and one W(6) atom. In the eighteenth O site, O(18) is bonded in a bent 150 degrees geometry to one W(5) and one W(6) atom. In the nineteenth O site, O(19) is bonded in a bent 150 degrees geometry to one W(6) and one W(7) atom. In the twentieth O site, O(20) is bonded in a bent 150 degrees geometry to one W(5) and one W(7) atom. In the twenty-first O site, O(21) is bonded in a bent 150 degrees geometry to one W(2) and one W(5) atom. is represented by the CIF card [CIF]
data_WO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.402
_cell_length_b   7.580
_cell_length_c   8.435
_cell_angle_alpha   101.275
_cell_angle_beta   90.100
_cell_angle_gamma   90.055
_symmetry_Int_Tables_number   1
_cell_volume   464.083
_cell_formula_units_Z   7
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  0.749  0.183  0.203  1.0
  W  W1  1  0.500  0.524  0.501  1.0
  W  W2  1  0.999  0.449  0.946  1.0
  W  W3  1  0.751  0.815  0.824  1.0
  W  W4  1  0.250  0.814  0.823  1.0
  W  W5  1  0.500  0.022  0.521  1.0
  W  W6  1  0.251  0.182  0.201  1.0
  O  O7  1  0.683  0.394  0.358  1.0
  O  O8  1  0.792  0.993  0.014  1.0
  O  O9  1  0.680  0.968  0.673  1.0
  O  O10  1  0.682  0.035  0.355  1.0
  O  O11  1  0.500  0.174  0.130  1.0
  O  O12  1  0.500  0.267  0.585  1.0
  O  O13  1  0.996  0.317  0.753  1.0
  O  O14  1  0.000  0.175  0.266  1.0
  O  O15  1  0.318  0.394  0.356  1.0
  O  O16  1  0.821  0.346  0.065  1.0
  O  O17  1  0.178  0.343  0.062  1.0
  O  O18  1  0.823  0.635  0.942  1.0
  O  O19  1  0.177  0.633  0.940  1.0
  O  O20  1  0.684  0.608  0.654  1.0
  O  O21  1  0.000  0.826  0.755  1.0
  O  O22  1  0.500  0.814  0.889  1.0
  O  O23  1  0.500  0.739  0.429  1.0
  O  O24  1  0.320  0.967  0.673  1.0
  O  O25  1  0.318  0.034  0.354  1.0
  O  O26  1  0.208  0.991  0.014  1.0
  O  O27  1  0.315  0.608  0.653  1.0
[/CIF]
.