The material described by WP4O12 crystallizes in the monoclinic C2/c space group. W(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form WO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with four equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share  a cornercorner with one W(1)O6 octahedra and corners with two equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 35°. In the second P site, P(2) is bonded to one O(2), one O(3), one O(4), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent W(1)O6 octahedra and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 18-41°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one W(1) and one P(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one P(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one W(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted linear geometry to one W(1) and one P(2) atom. is represented by the CIF file [CIF]
data_P4WO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.361
_cell_length_b   7.361
_cell_length_c   10.151
_cell_angle_alpha   64.665
_cell_angle_beta   64.665
_cell_angle_gamma   69.151
_symmetry_Int_Tables_number   1
_cell_volume   439.127
_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
  P  P0  1  0.280  0.311  0.685  1.0
  P  P1  1  0.266  0.737  0.472  1.0
  P  P2  1  0.263  0.734  0.028  1.0
  P  P3  1  0.311  0.280  0.185  1.0
  P  P4  1  0.689  0.720  0.815  1.0
  P  P5  1  0.737  0.266  0.972  1.0
  P  P6  1  0.734  0.263  0.528  1.0
  P  P7  1  0.720  0.689  0.315  1.0
  W  W8  1  0.054  0.946  0.750  1.0
  W  W9  1  0.946  0.054  0.250  1.0
  O  O10  1  0.834  0.640  0.173  1.0
  O  O11  1  0.789  0.255  0.103  1.0
  O  O12  1  0.479  0.750  0.341  1.0
  O  O13  1  0.255  0.789  0.603  1.0
  O  O14  1  0.264  0.501  0.530  1.0
  O  O15  1  0.232  0.146  0.661  1.0
  O  O16  1  0.501  0.264  0.030  1.0
  O  O17  1  0.360  0.166  0.327  1.0
  O  O18  1  0.101  0.853  0.401  1.0
  O  O19  1  0.854  0.768  0.839  1.0
  O  O20  1  0.250  0.521  0.159  1.0
  O  O21  1  0.147  0.899  0.099  1.0
  O  O22  1  0.853  0.101  0.901  1.0
  O  O23  1  0.750  0.479  0.841  1.0
  O  O24  1  0.146  0.232  0.161  1.0
  O  O25  1  0.899  0.147  0.599  1.0
  O  O26  1  0.640  0.834  0.673  1.0
  O  O27  1  0.499  0.736  0.970  1.0
  O  O28  1  0.768  0.854  0.339  1.0
  O  O29  1  0.736  0.499  0.470  1.0
  O  O30  1  0.745  0.211  0.397  1.0
  O  O31  1  0.521  0.250  0.659  1.0
  O  O32  1  0.211  0.745  0.897  1.0
  O  O33  1  0.166  0.360  0.827  1.0
[/CIF]
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The material described by WP4O12 crystallizes in the monoclinic C2/c space group. W(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(6) atoms to form WO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra and corners with four equivalent P(2)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share  a cornercorner with one W(1)O6 octahedra and corners with two equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 35°. In the second P site, P(2) is bonded to one O(2), one O(3), one O(4), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent W(1)O6 octahedra and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 18-41°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one P(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one W(1) and one P(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one P(1) and one P(2) atom. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one W(1) and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted linear geometry to one W(1) and one P(2) atom. is represented by the CIF file [CIF]
data_P4WO12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.361
_cell_length_b   7.361
_cell_length_c   10.151
_cell_angle_alpha   64.665
_cell_angle_beta   64.665
_cell_angle_gamma   69.151
_symmetry_Int_Tables_number   1
_cell_volume   439.127
_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
  P  P0  1  0.280  0.311  0.685  1.0
  P  P1  1  0.266  0.737  0.472  1.0
  P  P2  1  0.263  0.734  0.028  1.0
  P  P3  1  0.311  0.280  0.185  1.0
  P  P4  1  0.689  0.720  0.815  1.0
  P  P5  1  0.737  0.266  0.972  1.0
  P  P6  1  0.734  0.263  0.528  1.0
  P  P7  1  0.720  0.689  0.315  1.0
  W  W8  1  0.054  0.946  0.750  1.0
  W  W9  1  0.946  0.054  0.250  1.0
  O  O10  1  0.834  0.640  0.173  1.0
  O  O11  1  0.789  0.255  0.103  1.0
  O  O12  1  0.479  0.750  0.341  1.0
  O  O13  1  0.255  0.789  0.603  1.0
  O  O14  1  0.264  0.501  0.530  1.0
  O  O15  1  0.232  0.146  0.661  1.0
  O  O16  1  0.501  0.264  0.030  1.0
  O  O17  1  0.360  0.166  0.327  1.0
  O  O18  1  0.101  0.853  0.401  1.0
  O  O19  1  0.854  0.768  0.839  1.0
  O  O20  1  0.250  0.521  0.159  1.0
  O  O21  1  0.147  0.899  0.099  1.0
  O  O22  1  0.853  0.101  0.901  1.0
  O  O23  1  0.750  0.479  0.841  1.0
  O  O24  1  0.146  0.232  0.161  1.0
  O  O25  1  0.899  0.147  0.599  1.0
  O  O26  1  0.640  0.834  0.673  1.0
  O  O27  1  0.499  0.736  0.970  1.0
  O  O28  1  0.768  0.854  0.339  1.0
  O  O29  1  0.736  0.499  0.470  1.0
  O  O30  1  0.745  0.211  0.397  1.0
  O  O31  1  0.521  0.250  0.659  1.0
  O  O32  1  0.211  0.745  0.897  1.0
  O  O33  1  0.166  0.360  0.827  1.0
[/CIF]
.