The material structure described by K3Te(PO7)2 crystallizes in the triclinic P-1 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(13), one O(14), one O(3), and two equivalent O(2) atoms. In the second K site, K(2) is bonded to one O(12), one O(4), one O(5), two equivalent O(6), and two equivalent O(8) atoms to form distorted KO7 pentagonal bipyramids that share corners with two equivalent Te(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra,  an edgeedge with one Te(1)O6 octahedra, and edges with two equivalent K(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 36-42°. In the third K site, K(3) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(12), one O(14), one O(3), one O(4), and one O(9) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(10), one O(7), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent K(2)O7 pentagonal bipyramids and  a cornercorner with one P(2)O4 tetrahedra. In the second P site, P(2) is bonded to one O(10), one O(11), one O(12), and one O(13) atom to form PO4 tetrahedra that share  a cornercorner with one K(2)O7 pentagonal bipyramid and  a cornercorner with one P(1)O4 tetrahedra. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms to form TeO6 octahedra that share corners with four equivalent K(2)O7 pentagonal bipyramids and edges with two equivalent K(2)O7 pentagonal bipyramids. In the second Te site, Te(2) is bonded in an octahedral geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one K(3), and one Te(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent K(1) and one Te(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one K(3), and one Te(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(2), one K(3), and one Te(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one K(2) and one Te(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to two equivalent K(2) and one Te(1) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one P(1) and one O(14) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent K(2) and one P(1) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to one K(3) and one P(1) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one K(3), one P(1), and one P(2) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one K(1), one K(3), and one P(2) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one K(2), one K(3), and one P(2) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one K(1) and one P(2) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one K(1), one K(3), and one O(7) atom. is represented by the CIF card [CIF]
data_K3Te(PO7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.443
_cell_length_b   7.353
_cell_length_c   16.252
_cell_angle_alpha   77.155
_cell_angle_beta   82.159
_cell_angle_gamma   71.219
_symmetry_Int_Tables_number   1
_cell_volume   708.954
_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
  K  K0  1  0.200  0.171  0.425  1.0
  K  K1  1  0.800  0.829  0.575  1.0
  K  K2  1  0.817  0.835  0.069  1.0
  K  K3  1  0.183  0.165  0.931  1.0
  K  K4  1  0.397  0.510  0.744  1.0
  K  K5  1  0.603  0.490  0.256  1.0
  Te  Te6  1  0.500  0.500  0.000  1.0
  Te  Te7  1  0.500  0.500  0.500  1.0
  P  P8  1  0.853  0.965  0.817  1.0
  P  P9  1  0.147  0.035  0.183  1.0
  P  P10  1  0.194  0.058  0.687  1.0
  P  P11  1  0.806  0.942  0.313  1.0
  O  O12  1  0.664  0.482  0.594  1.0
  O  O13  1  0.336  0.518  0.406  1.0
  O  O14  1  0.448  0.779  0.479  1.0
  O  O15  1  0.552  0.221  0.521  1.0
  O  O16  1  0.247  0.588  0.576  1.0
  O  O17  1  0.753  0.412  0.424  1.0
  O  O18  1  0.308  0.510  0.917  1.0
  O  O19  1  0.692  0.490  0.083  1.0
  O  O20  1  0.754  0.422  0.923  1.0
  O  O21  1  0.246  0.578  0.077  1.0
  O  O22  1  0.461  0.776  0.992  1.0
  O  O23  1  0.539  0.224  0.008  1.0
  O  O24  1  0.739  0.801  0.828  1.0
  O  O25  1  0.261  0.199  0.172  1.0
  O  O26  1  0.972  0.931  0.896  1.0
  O  O27  1  0.028  0.069  0.104  1.0
  O  O28  1  0.684  0.162  0.797  1.0
  O  O29  1  0.316  0.838  0.203  1.0
  O  O30  1  0.029  0.927  0.737  1.0
  O  O31  1  0.971  0.073  0.263  1.0
  O  O32  1  0.416  0.904  0.679  1.0
  O  O33  1  0.584  0.096  0.321  1.0
  O  O34  1  0.195  0.200  0.742  1.0
  O  O35  1  0.805  0.800  0.258  1.0
  O  O36  1  0.107  0.149  0.600  1.0
  O  O37  1  0.893  0.851  0.400  1.0
  O  O38  1  0.888  0.590  0.762  1.0
  O  O39  1  0.112  0.410  0.238  1.0
[/CIF]
.
The material structure described by K3Te(PO7)2 crystallizes in the triclinic P-1 space group. There are three inequivalent K sites. In the first K site, K(1) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(13), one O(14), one O(3), and two equivalent O(2) atoms. In the second K site, K(2) is bonded to one O(12), one O(4), one O(5), two equivalent O(6), and two equivalent O(8) atoms to form distorted KO7 pentagonal bipyramids that share corners with two equivalent Te(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, corners with two equivalent P(1)O4 tetrahedra,  an edgeedge with one Te(1)O6 octahedra, and edges with two equivalent K(2)O7 pentagonal bipyramids. The corner-sharing octahedral tilt angles range from 36-42°. In the third K site, K(3) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(12), one O(14), one O(3), one O(4), and one O(9) atom. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(10), one O(7), one O(8), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent K(2)O7 pentagonal bipyramids and  a cornercorner with one P(2)O4 tetrahedra. In the second P site, P(2) is bonded to one O(10), one O(11), one O(12), and one O(13) atom to form PO4 tetrahedra that share  a cornercorner with one K(2)O7 pentagonal bipyramid and  a cornercorner with one P(1)O4 tetrahedra. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded to two equivalent O(4), two equivalent O(5), and two equivalent O(6) atoms to form TeO6 octahedra that share corners with four equivalent K(2)O7 pentagonal bipyramids and edges with two equivalent K(2)O7 pentagonal bipyramids. In the second Te site, Te(2) is bonded in an octahedral geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one K(1), one K(3), and one Te(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent K(1) and one Te(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one K(1), one K(3), and one Te(2) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(2), one K(3), and one Te(1) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one K(2) and one Te(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to two equivalent K(2) and one Te(1) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one P(1) and one O(14) atom. In the eighth O site, O(8) is bonded in a distorted single-bond geometry to two equivalent K(2) and one P(1) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to one K(3) and one P(1) atom. In the tenth O site, O(10) is bonded in a distorted bent 120 degrees geometry to one K(3), one P(1), and one P(2) atom. In the eleventh O site, O(11) is bonded in a distorted single-bond geometry to one K(1), one K(3), and one P(2) atom. In the twelfth O site, O(12) is bonded in a distorted single-bond geometry to one K(2), one K(3), and one P(2) atom. In the thirteenth O site, O(13) is bonded in a distorted single-bond geometry to one K(1) and one P(2) atom. In the fourteenth O site, O(14) is bonded in a 3-coordinate geometry to one K(1), one K(3), and one O(7) atom. is represented by the CIF card [CIF]
data_K3Te(PO7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.443
_cell_length_b   7.353
_cell_length_c   16.252
_cell_angle_alpha   77.155
_cell_angle_beta   82.159
_cell_angle_gamma   71.219
_symmetry_Int_Tables_number   1
_cell_volume   708.954
_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
  K  K0  1  0.200  0.171  0.425  1.0
  K  K1  1  0.800  0.829  0.575  1.0
  K  K2  1  0.817  0.835  0.069  1.0
  K  K3  1  0.183  0.165  0.931  1.0
  K  K4  1  0.397  0.510  0.744  1.0
  K  K5  1  0.603  0.490  0.256  1.0
  Te  Te6  1  0.500  0.500  0.000  1.0
  Te  Te7  1  0.500  0.500  0.500  1.0
  P  P8  1  0.853  0.965  0.817  1.0
  P  P9  1  0.147  0.035  0.183  1.0
  P  P10  1  0.194  0.058  0.687  1.0
  P  P11  1  0.806  0.942  0.313  1.0
  O  O12  1  0.664  0.482  0.594  1.0
  O  O13  1  0.336  0.518  0.406  1.0
  O  O14  1  0.448  0.779  0.479  1.0
  O  O15  1  0.552  0.221  0.521  1.0
  O  O16  1  0.247  0.588  0.576  1.0
  O  O17  1  0.753  0.412  0.424  1.0
  O  O18  1  0.308  0.510  0.917  1.0
  O  O19  1  0.692  0.490  0.083  1.0
  O  O20  1  0.754  0.422  0.923  1.0
  O  O21  1  0.246  0.578  0.077  1.0
  O  O22  1  0.461  0.776  0.992  1.0
  O  O23  1  0.539  0.224  0.008  1.0
  O  O24  1  0.739  0.801  0.828  1.0
  O  O25  1  0.261  0.199  0.172  1.0
  O  O26  1  0.972  0.931  0.896  1.0
  O  O27  1  0.028  0.069  0.104  1.0
  O  O28  1  0.684  0.162  0.797  1.0
  O  O29  1  0.316  0.838  0.203  1.0
  O  O30  1  0.029  0.927  0.737  1.0
  O  O31  1  0.971  0.073  0.263  1.0
  O  O32  1  0.416  0.904  0.679  1.0
  O  O33  1  0.584  0.096  0.321  1.0
  O  O34  1  0.195  0.200  0.742  1.0
  O  O35  1  0.805  0.800  0.258  1.0
  O  O36  1  0.107  0.149  0.600  1.0
  O  O37  1  0.893  0.851  0.400  1.0
  O  O38  1  0.888  0.590  0.762  1.0
  O  O39  1  0.112  0.410  0.238  1.0
[/CIF]
.