The structure described by WO2 crystallizes in the triclinic P1 space group. There are twelve inequivalent W sites. In the first W site, W(1) is bonded to one O(2), one O(3), one O(4), one O(6), one O(7), and one O(8) atom to form distorted WO6 octahedra that share  a cornercorner with one W(12)O4 tetrahedra,  an edgeedge with one W(3)O6 octahedra, edges with two equivalent W(4)O6 octahedra, and edges with two equivalent W(6)O6 octahedra. In the second W site, W(2) is bonded to one O(10), one O(15), one O(16), one O(20), one O(5), and one O(9) atom to form distorted edge-sharing WO6 octahedra. In the third W site, W(3) is bonded to one O(11), one O(12), one O(5), one O(6), one O(8), and one O(9) atom to form edge-sharing WO6 octahedra. In the fourth W site, W(4) is bonded to one O(1), one O(12), one O(3), one O(4), one O(6), and one O(7) atom to form distorted WO6 octahedra that share  a cornercorner with one W(12)O4 tetrahedra,  an edgeedge with one W(3)O6 octahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent W(6)O6 octahedra. In the fifth W site, W(5) is bonded to one O(10), one O(11), one O(14), one O(15), one O(16), and one O(9) atom to form edge-sharing WO6 octahedra. In the sixth W site, W(6) is bonded to one O(1), one O(12), one O(2), one O(3), one O(7), and one O(8) atom to form distorted WO6 octahedra that share  a cornercorner with one W(12)O4 tetrahedra,  an edgeedge with one W(3)O6 octahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent W(4)O6 octahedra. In the seventh W site, W(7) is bonded to one O(13), one O(14), one O(16), one O(18), one O(19), and one O(20) atom to form edge-sharing WO6 octahedra. In the eighth W site, W(8) is bonded to one O(10), one O(11), one O(14), one O(15), one O(20), and one O(5) atom to form edge-sharing WO6 octahedra. In the ninth W site, W(9) is bonded to one O(17), one O(18), one O(19), one O(21), one O(22), and one O(23) atom to form WO6 octahedra that share corners with two equivalent W(12)O4 tetrahedra,  an edgeedge with one W(7)O6 octahedra, edges with two equivalent W(10)O6 octahedra, and edges with two equivalent W(11)O6 octahedra. In the tenth W site, W(10) is bonded to one O(13), one O(17), one O(19), one O(21), one O(23), and one O(24) atom to form distorted WO6 octahedra that share corners with two equivalent W(12)O4 tetrahedra,  an edgeedge with one W(7)O6 octahedra, edges with two equivalent W(11)O6 octahedra, and edges with two equivalent W(9)O6 octahedra. In the eleventh W site, W(11) is bonded to one O(13), one O(17), one O(18), one O(22), one O(23), and one O(24) atom to form WO6 octahedra that share corners with two equivalent W(12)O4 tetrahedra,  an edgeedge with one W(7)O6 octahedra, edges with two equivalent W(10)O6 octahedra, and edges with two equivalent W(9)O6 octahedra. In the twelfth W site, W(12) is bonded to one O(21), one O(22), one O(24), and one O(7) atom to form corner-sharing WO4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-61°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one W(4) and one W(6) atom. In the second O site, O(2) is bonded in a water-like geometry to one W(1) and one W(6) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one W(1), one W(4), and one W(6) atom. In the fourth O site, O(4) is bonded in a water-like geometry to one W(1) and one W(4) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one W(2), one W(3), and one W(8) atom. In the sixth O site, O(6) is bonded in a trigonal non-coplanar geometry to one W(1), one W(3), and one W(4) atom. In the seventh O site, O(7) is bonded in a rectangular see-saw-like geometry to one W(1), one W(12), one W(4), and one W(6) atom. In the eighth O site, O(8) is bonded in a trigonal non-coplanar geometry to one W(1), one W(3), and one W(6) atom. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one W(2), one W(3), and one W(5) atom. In the tenth O site, O(10) is bonded in a distorted trigonal non-coplanar geometry to one W(2), one W(5), and one W(8) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one W(3), one W(5), and one W(8) atom. In the twelfth O site, O(12) is bonded in a trigonal non-coplanar geometry to one W(3), one W(4), and one W(6) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one W(10), one W(11), and one W(7) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal non-coplanar geometry to one W(5), one W(7), and one W(8) atom. In the fifteenth O site, O(15) is bonded in a trigonal non-coplanar geometry to one W(2), one W(5), and one W(8) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal non-coplanar geometry to one W(2), one W(5), and one W(7) atom. In the seventeenth O site, O(17) is bonded in a distorted trigonal non-coplanar geometry to one W(10), one W(11), and one W(9) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal non-coplanar geometry to one W(11), one W(7), and one W(9) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal non-coplanar geometry to one W(10), one W(7), and one W(9) atom. In the twentieth O site, O(20) is bonded in a distorted trigonal non-coplanar geometry to one W(2), one W(7), and one W(8) atom. In the twenty-first O site, O(21) is bonded in a distorted trigonal planar geometry to one W(10), one W(12), and one W(9) atom. In the twenty-second O site, O(22) is bonded in a distorted trigonal planar geometry to one W(11), one W(12), and one W(9) atom. In the twenty-third O site, O(23) is bonded in a trigonal non-coplanar geometry to one W(10), one W(11), and one W(9) atom. In the twenty-fourth O site, O(24) is bonded in a trigonal planar geometry to one W(10), one W(11), and one W(12) atom. is represented by the CIF file [CIF]
data_WO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.483
_cell_length_b   6.519
_cell_length_c   15.493
_cell_angle_alpha   90.686
_cell_angle_beta   90.190
_cell_angle_gamma   119.511
_symmetry_Int_Tables_number   1
_cell_volume   569.732
_cell_formula_units_Z   12
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  0.657  0.325  0.163  1.0
  W  W1  1  0.503  0.497  0.503  1.0
  W  W2  1  0.838  0.668  0.329  1.0
  W  W3  1  0.662  0.850  0.163  1.0
  W  W4  1  0.996  0.993  0.499  1.0
  W  W5  1  0.180  0.839  0.161  1.0
  W  W6  1  0.158  0.332  0.665  1.0
  W  W7  1  0.993  0.494  0.499  1.0
  W  W8  1  0.333  0.665  0.834  1.0
  W  W9  1  0.329  0.170  0.840  1.0
  W  W10  1  0.837  0.170  0.834  1.0
  W  W11  1  0.836  0.668  0.955  1.0
  O  O12  1  0.365  0.691  0.104  1.0
  O  O13  1  0.347  0.144  0.101  1.0
  O  O14  1  0.509  0.002  0.232  1.0
  O  O15  1  0.810  0.153  0.105  1.0
  O  O16  1  0.707  0.391  0.421  1.0
  O  O17  1  0.567  0.544  0.237  1.0
  O  O18  1  0.827  0.670  0.085  1.0
  O  O19  1  0.975  0.540  0.235  1.0
  O  O20  1  0.701  0.805  0.420  1.0
  O  O21  1  0.859  0.680  0.566  1.0
  O  O22  1  0.111  0.795  0.419  1.0
  O  O23  1  0.964  0.940  0.231  1.0
  O  O24  1  0.021  0.065  0.754  1.0
  O  O25  1  0.883  0.187  0.583  1.0
  O  O26  1  0.151  0.321  0.441  1.0
  O  O27  1  0.288  0.181  0.584  1.0
  O  O28  1  0.153  0.350  0.901  1.0
  O  O29  1  0.025  0.474  0.756  1.0
  O  O30  1  0.435  0.475  0.757  1.0
  O  O31  1  0.289  0.602  0.588  1.0
  O  O32  1  0.161  0.822  0.905  1.0
  O  O33  1  0.678  0.830  0.900  1.0
  O  O34  1  0.503  0.993  0.782  1.0
  O  O35  1  0.680  0.341  0.906  1.0
[/CIF]
.
The structure described by WO2 crystallizes in the triclinic P1 space group. There are twelve inequivalent W sites. In the first W site, W(1) is bonded to one O(2), one O(3), one O(4), one O(6), one O(7), and one O(8) atom to form distorted WO6 octahedra that share  a cornercorner with one W(12)O4 tetrahedra,  an edgeedge with one W(3)O6 octahedra, edges with two equivalent W(4)O6 octahedra, and edges with two equivalent W(6)O6 octahedra. In the second W site, W(2) is bonded to one O(10), one O(15), one O(16), one O(20), one O(5), and one O(9) atom to form distorted edge-sharing WO6 octahedra. In the third W site, W(3) is bonded to one O(11), one O(12), one O(5), one O(6), one O(8), and one O(9) atom to form edge-sharing WO6 octahedra. In the fourth W site, W(4) is bonded to one O(1), one O(12), one O(3), one O(4), one O(6), and one O(7) atom to form distorted WO6 octahedra that share  a cornercorner with one W(12)O4 tetrahedra,  an edgeedge with one W(3)O6 octahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent W(6)O6 octahedra. In the fifth W site, W(5) is bonded to one O(10), one O(11), one O(14), one O(15), one O(16), and one O(9) atom to form edge-sharing WO6 octahedra. In the sixth W site, W(6) is bonded to one O(1), one O(12), one O(2), one O(3), one O(7), and one O(8) atom to form distorted WO6 octahedra that share  a cornercorner with one W(12)O4 tetrahedra,  an edgeedge with one W(3)O6 octahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent W(4)O6 octahedra. In the seventh W site, W(7) is bonded to one O(13), one O(14), one O(16), one O(18), one O(19), and one O(20) atom to form edge-sharing WO6 octahedra. In the eighth W site, W(8) is bonded to one O(10), one O(11), one O(14), one O(15), one O(20), and one O(5) atom to form edge-sharing WO6 octahedra. In the ninth W site, W(9) is bonded to one O(17), one O(18), one O(19), one O(21), one O(22), and one O(23) atom to form WO6 octahedra that share corners with two equivalent W(12)O4 tetrahedra,  an edgeedge with one W(7)O6 octahedra, edges with two equivalent W(10)O6 octahedra, and edges with two equivalent W(11)O6 octahedra. In the tenth W site, W(10) is bonded to one O(13), one O(17), one O(19), one O(21), one O(23), and one O(24) atom to form distorted WO6 octahedra that share corners with two equivalent W(12)O4 tetrahedra,  an edgeedge with one W(7)O6 octahedra, edges with two equivalent W(11)O6 octahedra, and edges with two equivalent W(9)O6 octahedra. In the eleventh W site, W(11) is bonded to one O(13), one O(17), one O(18), one O(22), one O(23), and one O(24) atom to form WO6 octahedra that share corners with two equivalent W(12)O4 tetrahedra,  an edgeedge with one W(7)O6 octahedra, edges with two equivalent W(10)O6 octahedra, and edges with two equivalent W(9)O6 octahedra. In the twelfth W site, W(12) is bonded to one O(21), one O(22), one O(24), and one O(7) atom to form corner-sharing WO4 tetrahedra. The corner-sharing octahedral tilt angles range from 51-61°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a water-like geometry to one W(4) and one W(6) atom. In the second O site, O(2) is bonded in a water-like geometry to one W(1) and one W(6) atom. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one W(1), one W(4), and one W(6) atom. In the fourth O site, O(4) is bonded in a water-like geometry to one W(1) and one W(4) atom. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one W(2), one W(3), and one W(8) atom. In the sixth O site, O(6) is bonded in a trigonal non-coplanar geometry to one W(1), one W(3), and one W(4) atom. In the seventh O site, O(7) is bonded in a rectangular see-saw-like geometry to one W(1), one W(12), one W(4), and one W(6) atom. In the eighth O site, O(8) is bonded in a trigonal non-coplanar geometry to one W(1), one W(3), and one W(6) atom. In the ninth O site, O(9) is bonded in a distorted trigonal non-coplanar geometry to one W(2), one W(3), and one W(5) atom. In the tenth O site, O(10) is bonded in a distorted trigonal non-coplanar geometry to one W(2), one W(5), and one W(8) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal non-coplanar geometry to one W(3), one W(5), and one W(8) atom. In the twelfth O site, O(12) is bonded in a trigonal non-coplanar geometry to one W(3), one W(4), and one W(6) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one W(10), one W(11), and one W(7) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal non-coplanar geometry to one W(5), one W(7), and one W(8) atom. In the fifteenth O site, O(15) is bonded in a trigonal non-coplanar geometry to one W(2), one W(5), and one W(8) atom. In the sixteenth O site, O(16) is bonded in a distorted trigonal non-coplanar geometry to one W(2), one W(5), and one W(7) atom. In the seventeenth O site, O(17) is bonded in a distorted trigonal non-coplanar geometry to one W(10), one W(11), and one W(9) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal non-coplanar geometry to one W(11), one W(7), and one W(9) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal non-coplanar geometry to one W(10), one W(7), and one W(9) atom. In the twentieth O site, O(20) is bonded in a distorted trigonal non-coplanar geometry to one W(2), one W(7), and one W(8) atom. In the twenty-first O site, O(21) is bonded in a distorted trigonal planar geometry to one W(10), one W(12), and one W(9) atom. In the twenty-second O site, O(22) is bonded in a distorted trigonal planar geometry to one W(11), one W(12), and one W(9) atom. In the twenty-third O site, O(23) is bonded in a trigonal non-coplanar geometry to one W(10), one W(11), and one W(9) atom. In the twenty-fourth O site, O(24) is bonded in a trigonal planar geometry to one W(10), one W(11), and one W(12) atom. is represented by the CIF file [CIF]
data_WO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.483
_cell_length_b   6.519
_cell_length_c   15.493
_cell_angle_alpha   90.686
_cell_angle_beta   90.190
_cell_angle_gamma   119.511
_symmetry_Int_Tables_number   1
_cell_volume   569.732
_cell_formula_units_Z   12
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  0.657  0.325  0.163  1.0
  W  W1  1  0.503  0.497  0.503  1.0
  W  W2  1  0.838  0.668  0.329  1.0
  W  W3  1  0.662  0.850  0.163  1.0
  W  W4  1  0.996  0.993  0.499  1.0
  W  W5  1  0.180  0.839  0.161  1.0
  W  W6  1  0.158  0.332  0.665  1.0
  W  W7  1  0.993  0.494  0.499  1.0
  W  W8  1  0.333  0.665  0.834  1.0
  W  W9  1  0.329  0.170  0.840  1.0
  W  W10  1  0.837  0.170  0.834  1.0
  W  W11  1  0.836  0.668  0.955  1.0
  O  O12  1  0.365  0.691  0.104  1.0
  O  O13  1  0.347  0.144  0.101  1.0
  O  O14  1  0.509  0.002  0.232  1.0
  O  O15  1  0.810  0.153  0.105  1.0
  O  O16  1  0.707  0.391  0.421  1.0
  O  O17  1  0.567  0.544  0.237  1.0
  O  O18  1  0.827  0.670  0.085  1.0
  O  O19  1  0.975  0.540  0.235  1.0
  O  O20  1  0.701  0.805  0.420  1.0
  O  O21  1  0.859  0.680  0.566  1.0
  O  O22  1  0.111  0.795  0.419  1.0
  O  O23  1  0.964  0.940  0.231  1.0
  O  O24  1  0.021  0.065  0.754  1.0
  O  O25  1  0.883  0.187  0.583  1.0
  O  O26  1  0.151  0.321  0.441  1.0
  O  O27  1  0.288  0.181  0.584  1.0
  O  O28  1  0.153  0.350  0.901  1.0
  O  O29  1  0.025  0.474  0.756  1.0
  O  O30  1  0.435  0.475  0.757  1.0
  O  O31  1  0.289  0.602  0.588  1.0
  O  O32  1  0.161  0.822  0.905  1.0
  O  O33  1  0.678  0.830  0.900  1.0
  O  O34  1  0.503  0.993  0.782  1.0
  O  O35  1  0.680  0.341  0.906  1.0
[/CIF]
.