The material described by KP4(WO4)8 crystallizes in the monoclinic Cm space group. K(1) is bonded in a 10-coordinate geometry to one O(1), one O(18), two equivalent O(19), two equivalent O(3), two equivalent O(5), and two equivalent O(8) atoms. There are six inequivalent W sites. In the first W site, W(1) is bonded to one O(12), one O(18), two equivalent O(16), and two equivalent O(8) atoms to form WO6 octahedra that share  a cornercorner with one W(4)O6 octahedra, corners with two equivalent W(3)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 2-12°. In the second W site, W(2) is bonded to one O(13), one O(17), two equivalent O(15), and two equivalent O(9) atoms to form WO6 octahedra that share  a cornercorner with one W(5)O6 octahedra, corners with two equivalent W(3)O6 octahedra, corners with two equivalent W(6)O6 octahedra, and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 1-10°. In the third W site, W(3) is bonded to one O(10), one O(11), one O(14), one O(15), one O(16), and one O(19) 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(4)O6 octahedra,  a cornercorner with one W(5)O6 octahedra,  a cornercorner with one W(6)O6 octahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 1-11°. In the fourth W site, W(4) is bonded to one O(1), one O(12), two equivalent O(10), and two equivalent O(4) atoms to form WO6 octahedra that share  a cornercorner with one W(1)O6 octahedra, corners with two equivalent W(3)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 5-11°. In the fifth W site, W(5) is bonded to one O(13), one O(2), two equivalent O(11), and two equivalent O(5) atoms to form WO6 octahedra that share  a cornercorner with one W(2)O6 octahedra, corners with two equivalent W(3)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 6-9°. In the sixth W site, W(6) is bonded to one O(14), one O(3), one O(6), one O(7), one O(8), and one O(9) 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(3)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 7-12°. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(17), one O(2), and two equivalent O(6) atoms to form PO4 tetrahedra that share  a cornercorner with one W(2)O6 octahedra,  a cornercorner with one W(5)O6 octahedra, and corners with two equivalent W(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-37°. In the second P site, P(2) is bonded to one O(1), one O(18), and two equivalent O(7) atoms to form PO4 tetrahedra that share  a cornercorner with one W(1)O6 octahedra,  a cornercorner with one W(4)O6 octahedra, and corners with two equivalent W(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-37°. In the third P site, P(3) is bonded to one O(19), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share  a cornercorner with one W(3)O6 octahedra,  a cornercorner with one W(4)O6 octahedra,  a cornercorner with one W(5)O6 octahedra, and  a cornercorner with one W(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-37°. There are nineteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one W(4), and one P(2) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one W(5) and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one W(6), and one P(3) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one W(4) and one P(3) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one W(5), and one P(3) atom. In the sixth O site, O(6) is bonded in a distorted linear geometry to one W(6) and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one W(6) and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to one K(1), one W(1), and one W(6) 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(4) atom. In the eleventh O site, O(11) is bonded in a linear geometry to one W(3) and one W(5) atom. In the twelfth O site, O(12) is bonded in a linear geometry to one W(1) and one W(4) atom. In the thirteenth O site, O(13) is bonded in a linear geometry to one W(2) and one W(5) atom. In the fourteenth O site, O(14) is bonded in a linear geometry to one W(3) and one W(6) atom. In the fifteenth O site, O(15) is bonded in a linear geometry to one W(2) and one W(3) atom. In the sixteenth O site, O(16) is bonded in a linear geometry to one W(1) and one W(3) atom. In the seventeenth O site, O(17) is bonded in a bent 150 degrees geometry to one W(2) and one P(1) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one K(1), one W(1), and one P(2) atom. In the nineteenth O site, O(19) is bonded in a distorted bent 150 degrees geometry to one K(1), one W(3), and one P(3) atom. is represented by the CIF card [CIF]
data_KP4(WO4)8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.751
_cell_length_b   8.751
_cell_length_c   10.330
_cell_angle_alpha   66.952
_cell_angle_beta   66.952
_cell_angle_gamma   76.847
_symmetry_Int_Tables_number   1
_cell_volume   667.216
_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  0.194  0.194  0.999  1.0
  P  P1  1  0.416  0.416  0.130  1.0
  P  P2  1  0.914  0.914  0.129  1.0
  P  P3  1  0.084  0.587  0.870  1.0
  P  P4  1  0.587  0.084  0.870  1.0
  W  W5  1  0.991  0.991  0.407  1.0
  W  W6  1  0.489  0.489  0.410  1.0
  W  W7  1  0.513  0.012  0.591  1.0
  W  W8  1  0.012  0.513  0.591  1.0
  W  W9  1  0.031  0.031  0.749  1.0
  W  W10  1  0.531  0.531  0.752  1.0
  W  W11  1  0.471  0.969  0.250  1.0
  W  W12  1  0.969  0.471  0.250  1.0
  O  O13  1  0.007  0.007  0.961  1.0
  O  O14  1  0.508  0.508  0.962  1.0
  O  O15  1  0.491  0.995  0.038  1.0
  O  O16  1  0.995  0.491  0.038  1.0
  O  O17  1  0.039  0.775  0.838  1.0
  O  O18  1  0.536  0.273  0.838  1.0
  O  O19  1  0.228  0.461  0.162  1.0
  O  O20  1  0.726  0.960  0.162  1.0
  O  O21  1  0.461  0.228  0.162  1.0
  O  O22  1  0.960  0.726  0.162  1.0
  O  O23  1  0.273  0.536  0.838  1.0
  O  O24  1  0.775  0.039  0.838  1.0
  O  O25  1  0.241  0.987  0.305  1.0
  O  O26  1  0.740  0.485  0.308  1.0
  O  O27  1  0.015  0.263  0.692  1.0
  O  O28  1  0.512  0.758  0.692  1.0
  O  O29  1  0.263  0.015  0.692  1.0
  O  O30  1  0.758  0.512  0.692  1.0
  O  O31  1  0.485  0.740  0.308  1.0
  O  O32  1  0.987  0.241  0.305  1.0
  O  O33  1  0.020  0.020  0.583  1.0
  O  O34  1  0.518  0.518  0.576  1.0
  O  O35  1  0.480  0.982  0.420  1.0
  O  O36  1  0.982  0.480  0.420  1.0
  O  O37  1  0.498  0.252  0.500  1.0
  O  O38  1  0.997  0.744  0.504  1.0
  O  O39  1  0.744  0.997  0.504  1.0
  O  O40  1  0.252  0.498  0.500  1.0
  O  O41  1  0.478  0.478  0.221  1.0
  O  O42  1  0.979  0.979  0.213  1.0
  O  O43  1  0.023  0.521  0.783  1.0
  O  O44  1  0.521  0.023  0.783  1.0
[/CIF]
.
The material described by KP4(WO4)8 crystallizes in the monoclinic Cm space group. K(1) is bonded in a 10-coordinate geometry to one O(1), one O(18), two equivalent O(19), two equivalent O(3), two equivalent O(5), and two equivalent O(8) atoms. There are six inequivalent W sites. In the first W site, W(1) is bonded to one O(12), one O(18), two equivalent O(16), and two equivalent O(8) atoms to form WO6 octahedra that share  a cornercorner with one W(4)O6 octahedra, corners with two equivalent W(3)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 2-12°. In the second W site, W(2) is bonded to one O(13), one O(17), two equivalent O(15), and two equivalent O(9) atoms to form WO6 octahedra that share  a cornercorner with one W(5)O6 octahedra, corners with two equivalent W(3)O6 octahedra, corners with two equivalent W(6)O6 octahedra, and  a cornercorner with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 1-10°. In the third W site, W(3) is bonded to one O(10), one O(11), one O(14), one O(15), one O(16), and one O(19) 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(4)O6 octahedra,  a cornercorner with one W(5)O6 octahedra,  a cornercorner with one W(6)O6 octahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 1-11°. In the fourth W site, W(4) is bonded to one O(1), one O(12), two equivalent O(10), and two equivalent O(4) atoms to form WO6 octahedra that share  a cornercorner with one W(1)O6 octahedra, corners with two equivalent W(3)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 5-11°. In the fifth W site, W(5) is bonded to one O(13), one O(2), two equivalent O(11), and two equivalent O(5) atoms to form WO6 octahedra that share  a cornercorner with one W(2)O6 octahedra, corners with two equivalent W(3)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and corners with two equivalent P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 6-9°. In the sixth W site, W(6) is bonded to one O(14), one O(3), one O(6), one O(7), one O(8), and one O(9) 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(3)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 7-12°. There are three inequivalent P sites. In the first P site, P(1) is bonded to one O(17), one O(2), and two equivalent O(6) atoms to form PO4 tetrahedra that share  a cornercorner with one W(2)O6 octahedra,  a cornercorner with one W(5)O6 octahedra, and corners with two equivalent W(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-37°. In the second P site, P(2) is bonded to one O(1), one O(18), and two equivalent O(7) atoms to form PO4 tetrahedra that share  a cornercorner with one W(1)O6 octahedra,  a cornercorner with one W(4)O6 octahedra, and corners with two equivalent W(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-37°. In the third P site, P(3) is bonded to one O(19), one O(3), one O(4), and one O(5) atom to form PO4 tetrahedra that share  a cornercorner with one W(3)O6 octahedra,  a cornercorner with one W(4)O6 octahedra,  a cornercorner with one W(5)O6 octahedra, and  a cornercorner with one W(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-37°. There are nineteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one W(4), and one P(2) atom. In the second O site, O(2) is bonded in a bent 150 degrees geometry to one W(5) and one P(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one W(6), and one P(3) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one W(4) and one P(3) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one W(5), and one P(3) atom. In the sixth O site, O(6) is bonded in a distorted linear geometry to one W(6) and one P(1) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to one W(6) and one P(2) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to one K(1), one W(1), and one W(6) 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(4) atom. In the eleventh O site, O(11) is bonded in a linear geometry to one W(3) and one W(5) atom. In the twelfth O site, O(12) is bonded in a linear geometry to one W(1) and one W(4) atom. In the thirteenth O site, O(13) is bonded in a linear geometry to one W(2) and one W(5) atom. In the fourteenth O site, O(14) is bonded in a linear geometry to one W(3) and one W(6) atom. In the fifteenth O site, O(15) is bonded in a linear geometry to one W(2) and one W(3) atom. In the sixteenth O site, O(16) is bonded in a linear geometry to one W(1) and one W(3) atom. In the seventeenth O site, O(17) is bonded in a bent 150 degrees geometry to one W(2) and one P(1) atom. In the eighteenth O site, O(18) is bonded in a 3-coordinate geometry to one K(1), one W(1), and one P(2) atom. In the nineteenth O site, O(19) is bonded in a distorted bent 150 degrees geometry to one K(1), one W(3), and one P(3) atom. is represented by the CIF card [CIF]
data_KP4(WO4)8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.751
_cell_length_b   8.751
_cell_length_c   10.330
_cell_angle_alpha   66.952
_cell_angle_beta   66.952
_cell_angle_gamma   76.847
_symmetry_Int_Tables_number   1
_cell_volume   667.216
_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  0.194  0.194  0.999  1.0
  P  P1  1  0.416  0.416  0.130  1.0
  P  P2  1  0.914  0.914  0.129  1.0
  P  P3  1  0.084  0.587  0.870  1.0
  P  P4  1  0.587  0.084  0.870  1.0
  W  W5  1  0.991  0.991  0.407  1.0
  W  W6  1  0.489  0.489  0.410  1.0
  W  W7  1  0.513  0.012  0.591  1.0
  W  W8  1  0.012  0.513  0.591  1.0
  W  W9  1  0.031  0.031  0.749  1.0
  W  W10  1  0.531  0.531  0.752  1.0
  W  W11  1  0.471  0.969  0.250  1.0
  W  W12  1  0.969  0.471  0.250  1.0
  O  O13  1  0.007  0.007  0.961  1.0
  O  O14  1  0.508  0.508  0.962  1.0
  O  O15  1  0.491  0.995  0.038  1.0
  O  O16  1  0.995  0.491  0.038  1.0
  O  O17  1  0.039  0.775  0.838  1.0
  O  O18  1  0.536  0.273  0.838  1.0
  O  O19  1  0.228  0.461  0.162  1.0
  O  O20  1  0.726  0.960  0.162  1.0
  O  O21  1  0.461  0.228  0.162  1.0
  O  O22  1  0.960  0.726  0.162  1.0
  O  O23  1  0.273  0.536  0.838  1.0
  O  O24  1  0.775  0.039  0.838  1.0
  O  O25  1  0.241  0.987  0.305  1.0
  O  O26  1  0.740  0.485  0.308  1.0
  O  O27  1  0.015  0.263  0.692  1.0
  O  O28  1  0.512  0.758  0.692  1.0
  O  O29  1  0.263  0.015  0.692  1.0
  O  O30  1  0.758  0.512  0.692  1.0
  O  O31  1  0.485  0.740  0.308  1.0
  O  O32  1  0.987  0.241  0.305  1.0
  O  O33  1  0.020  0.020  0.583  1.0
  O  O34  1  0.518  0.518  0.576  1.0
  O  O35  1  0.480  0.982  0.420  1.0
  O  O36  1  0.982  0.480  0.420  1.0
  O  O37  1  0.498  0.252  0.500  1.0
  O  O38  1  0.997  0.744  0.504  1.0
  O  O39  1  0.744  0.997  0.504  1.0
  O  O40  1  0.252  0.498  0.500  1.0
  O  O41  1  0.478  0.478  0.221  1.0
  O  O42  1  0.979  0.979  0.213  1.0
  O  O43  1  0.023  0.521  0.783  1.0
  O  O44  1  0.521  0.023  0.783  1.0
[/CIF]
.