The structure described by KW7P2O25 crystallizes in the monoclinic Cm space group. K(1) is bonded in a 8-coordinate geometry to one O(14), one O(7), two equivalent O(1), two equivalent O(13), and two equivalent O(16) atoms. There are seven inequivalent W sites. In the first W site, W(1) is bonded to one O(3), one O(4), two equivalent O(5), and two equivalent O(6) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 1-7°. In the second W site, W(2) is bonded to one O(17), one O(9), two equivalent O(11), and two equivalent O(5) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 0-10°. In the third W site, W(3) is bonded to one O(10), one O(17), two equivalent O(12), and two equivalent O(6) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 2-5°. In the fourth W site, W(4) is bonded to one O(3), one O(7), two equivalent O(1), and two equivalent O(11) atoms to form WO6 octahedra that share  a cornercorner with one W(1)O6 octahedra, corners with two equivalent W(2)O6 octahedra, corners with two equivalent W(6)O6 octahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 7-15°. In the fifth W site, W(5) is bonded to one O(4), one O(8), two equivalent O(12), and two equivalent O(2) atoms to form WO6 octahedra that share  a cornercorner with one W(1)O6 octahedra, corners with two equivalent W(3)O6 octahedra, corners with two equivalent W(7)O6 octahedra, and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 1-14°. In the sixth W site, W(6) is bonded to one O(13), one O(9), two equivalent O(1), and two equivalent O(15) atoms to form WO6 octahedra that share  a cornercorner with one W(2)O6 octahedra, corners with two equivalent W(4)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 0-15°. In the seventh W site, W(7) is bonded to one O(10), one O(14), two equivalent O(16), and two equivalent O(2) atoms to form WO6 octahedra that share  a cornercorner with one W(3)O6 octahedra, corners with two equivalent W(5)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 3-14°. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(13), one O(8), and two equivalent O(16) atoms to form PO4 tetrahedra that share  a cornercorner with one W(5)O6 octahedra,  a cornercorner with one W(6)O6 octahedra, and corners with two equivalent W(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 18-38°. In the second P site, P(2) is bonded to one O(14), one O(7), and two equivalent O(15) atoms to form PO4 tetrahedra that share  a cornercorner with one W(4)O6 octahedra,  a cornercorner with one W(7)O6 octahedra, and corners with two equivalent W(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-40°. There are seventeen inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one K(1), one W(4), and one W(6) atom. In the second O site, O(2) is bonded in a linear geometry to one W(5) and one W(7) atom. In the third O site, O(3) is bonded in a linear geometry to one W(1) and one W(4) atom. In the fourth O site, O(4) is bonded in a linear geometry to one W(1) and one W(5) atom. In the fifth O site, O(5) is bonded in a linear geometry to one W(1) and one W(2) atom. In the sixth O site, O(6) is bonded in a linear geometry to one W(1) and one W(3) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one K(1), one W(4), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one W(5) and one P(1) atom. In the ninth O site, O(9) is bonded in a linear geometry to one W(2) and one W(6) atom. In the tenth O site, O(10) is bonded in a linear geometry to one W(3) and one W(7) atom. In the eleventh O site, O(11) is bonded in a linear geometry to one W(2) and one W(4) atom. In the twelfth O site, O(12) is bonded in a linear geometry to one W(3) and one W(5) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to two equivalent K(1), one W(6), and one P(1) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one K(1), one W(7), and one P(2) atom. In the fifteenth O site, O(15) is bonded in a distorted linear geometry to one W(6) and one P(2) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one K(1), one W(7), and one P(1) atom. In the seventeenth O site, O(17) is bonded in a linear geometry to one W(2) and one W(3) atom. is represented by the CIF card [CIF]
data_KP2W7O25
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.084
_cell_length_b   14.084
_cell_length_c   6.817
_cell_angle_alpha   83.351
_cell_angle_beta   83.351
_cell_angle_gamma   22.379
_symmetry_Int_Tables_number   1
_cell_volume   511.203
_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
  K  K0  1  0.251  0.251  0.636  1.0
  P  P1  1  0.794  0.794  0.804  1.0
  P  P2  1  0.207  0.207  0.196  1.0
  W  W3  1  0.999  0.999  0.994  1.0
  W  W4  1  0.554  0.554  0.300  1.0
  W  W5  1  0.443  0.443  0.695  1.0
  W  W6  1  0.112  0.112  0.599  1.0
  W  W7  1  0.885  0.885  0.390  1.0
  W  W8  1  0.668  0.668  0.912  1.0
  W  W9  1  0.331  0.331  0.087  1.0
  O  O10  1  0.900  0.401  0.749  1.0
  O  O11  1  0.602  0.101  0.262  1.0
  O  O12  1  0.101  0.602  0.262  1.0
  O  O13  1  0.401  0.900  0.749  1.0
  O  O14  1  0.062  0.062  0.797  1.0
  O  O15  1  0.938  0.938  0.203  1.0
  O  O16  1  0.779  0.280  0.159  1.0
  O  O17  1  0.715  0.228  0.843  1.0
  O  O18  1  0.228  0.715  0.843  1.0
  O  O19  1  0.280  0.779  0.159  1.0
  O  O20  1  0.177  0.177  0.402  1.0
  O  O21  1  0.822  0.822  0.599  1.0
  O  O22  1  0.614  0.614  0.094  1.0
  O  O23  1  0.386  0.386  0.905  1.0
  O  O24  1  0.836  0.342  0.453  1.0
  O  O25  1  0.662  0.162  0.553  1.0
  O  O26  1  0.162  0.662  0.553  1.0
  O  O27  1  0.342  0.836  0.453  1.0
  O  O28  1  0.738  0.738  0.766  1.0
  O  O29  1  0.261  0.261  0.237  1.0
  O  O30  1  0.965  0.429  0.079  1.0
  O  O31  1  0.565  0.038  0.914  1.0
  O  O32  1  0.038  0.565  0.914  1.0
  O  O33  1  0.429  0.965  0.079  1.0
  O  O34  1  0.501  0.501  0.500  1.0
[/CIF]
.
The structure described by KW7P2O25 crystallizes in the monoclinic Cm space group. K(1) is bonded in a 8-coordinate geometry to one O(14), one O(7), two equivalent O(1), two equivalent O(13), and two equivalent O(16) atoms. There are seven inequivalent W sites. In the first W site, W(1) is bonded to one O(3), one O(4), two equivalent O(5), and two equivalent O(6) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 1-7°. In the second W site, W(2) is bonded to one O(17), one O(9), two equivalent O(11), and two equivalent O(5) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 0-10°. In the third W site, W(3) is bonded to one O(10), one O(17), two equivalent O(12), and two equivalent O(6) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 2-5°. In the fourth W site, W(4) is bonded to one O(3), one O(7), two equivalent O(1), and two equivalent O(11) atoms to form WO6 octahedra that share  a cornercorner with one W(1)O6 octahedra, corners with two equivalent W(2)O6 octahedra, corners with two equivalent W(6)O6 octahedra, and  a cornercorner with one P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 7-15°. In the fifth W site, W(5) is bonded to one O(4), one O(8), two equivalent O(12), and two equivalent O(2) atoms to form WO6 octahedra that share  a cornercorner with one W(1)O6 octahedra, corners with two equivalent W(3)O6 octahedra, corners with two equivalent W(7)O6 octahedra, and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 1-14°. In the sixth W site, W(6) is bonded to one O(13), one O(9), two equivalent O(1), and two equivalent O(15) atoms to form WO6 octahedra that share  a cornercorner with one W(2)O6 octahedra, corners with two equivalent W(4)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and corners with two equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 0-15°. In the seventh W site, W(7) is bonded to one O(10), one O(14), two equivalent O(16), and two equivalent O(2) atoms to form WO6 octahedra that share  a cornercorner with one W(3)O6 octahedra, corners with two equivalent W(5)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with two equivalent P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 3-14°. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(13), one O(8), and two equivalent O(16) atoms to form PO4 tetrahedra that share  a cornercorner with one W(5)O6 octahedra,  a cornercorner with one W(6)O6 octahedra, and corners with two equivalent W(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 18-38°. In the second P site, P(2) is bonded to one O(14), one O(7), and two equivalent O(15) atoms to form PO4 tetrahedra that share  a cornercorner with one W(4)O6 octahedra,  a cornercorner with one W(7)O6 octahedra, and corners with two equivalent W(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-40°. There are seventeen inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one K(1), one W(4), and one W(6) atom. In the second O site, O(2) is bonded in a linear geometry to one W(5) and one W(7) atom. In the third O site, O(3) is bonded in a linear geometry to one W(1) and one W(4) atom. In the fourth O site, O(4) is bonded in a linear geometry to one W(1) and one W(5) atom. In the fifth O site, O(5) is bonded in a linear geometry to one W(1) and one W(2) atom. In the sixth O site, O(6) is bonded in a linear geometry to one W(1) and one W(3) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one K(1), one W(4), and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one W(5) and one P(1) atom. In the ninth O site, O(9) is bonded in a linear geometry to one W(2) and one W(6) atom. In the tenth O site, O(10) is bonded in a linear geometry to one W(3) and one W(7) atom. In the eleventh O site, O(11) is bonded in a linear geometry to one W(2) and one W(4) atom. In the twelfth O site, O(12) is bonded in a linear geometry to one W(3) and one W(5) atom. In the thirteenth O site, O(13) is bonded in a 4-coordinate geometry to two equivalent K(1), one W(6), and one P(1) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one K(1), one W(7), and one P(2) atom. In the fifteenth O site, O(15) is bonded in a distorted linear geometry to one W(6) and one P(2) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one K(1), one W(7), and one P(1) atom. In the seventeenth O site, O(17) is bonded in a linear geometry to one W(2) and one W(3) atom. is represented by the CIF card [CIF]
data_KP2W7O25
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   14.084
_cell_length_b   14.084
_cell_length_c   6.817
_cell_angle_alpha   83.351
_cell_angle_beta   83.351
_cell_angle_gamma   22.379
_symmetry_Int_Tables_number   1
_cell_volume   511.203
_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
  K  K0  1  0.251  0.251  0.636  1.0
  P  P1  1  0.794  0.794  0.804  1.0
  P  P2  1  0.207  0.207  0.196  1.0
  W  W3  1  0.999  0.999  0.994  1.0
  W  W4  1  0.554  0.554  0.300  1.0
  W  W5  1  0.443  0.443  0.695  1.0
  W  W6  1  0.112  0.112  0.599  1.0
  W  W7  1  0.885  0.885  0.390  1.0
  W  W8  1  0.668  0.668  0.912  1.0
  W  W9  1  0.331  0.331  0.087  1.0
  O  O10  1  0.900  0.401  0.749  1.0
  O  O11  1  0.602  0.101  0.262  1.0
  O  O12  1  0.101  0.602  0.262  1.0
  O  O13  1  0.401  0.900  0.749  1.0
  O  O14  1  0.062  0.062  0.797  1.0
  O  O15  1  0.938  0.938  0.203  1.0
  O  O16  1  0.779  0.280  0.159  1.0
  O  O17  1  0.715  0.228  0.843  1.0
  O  O18  1  0.228  0.715  0.843  1.0
  O  O19  1  0.280  0.779  0.159  1.0
  O  O20  1  0.177  0.177  0.402  1.0
  O  O21  1  0.822  0.822  0.599  1.0
  O  O22  1  0.614  0.614  0.094  1.0
  O  O23  1  0.386  0.386  0.905  1.0
  O  O24  1  0.836  0.342  0.453  1.0
  O  O25  1  0.662  0.162  0.553  1.0
  O  O26  1  0.162  0.662  0.553  1.0
  O  O27  1  0.342  0.836  0.453  1.0
  O  O28  1  0.738  0.738  0.766  1.0
  O  O29  1  0.261  0.261  0.237  1.0
  O  O30  1  0.965  0.429  0.079  1.0
  O  O31  1  0.565  0.038  0.914  1.0
  O  O32  1  0.038  0.565  0.914  1.0
  O  O33  1  0.429  0.965  0.079  1.0
  O  O34  1  0.501  0.501  0.500  1.0
[/CIF]
.