The compound described by K4Zn(P3O11)2 crystallizes in the monoclinic C2/m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(1), one O(6), two equivalent O(3), and two equivalent O(7) atoms. In the second K site, K(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form distorted KO6 pentagonal pyramids that share corners with two equivalent P(1)O4 tetrahedra, corners with four equivalent P(2)O4 tetrahedra, and  an edgeedge with one K(2)O6 pentagonal pyramid. Zn(1) is bonded to two equivalent O(2) and four equivalent O(7) atoms to form ZnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), and two equivalent O(5) atoms to form PO4 tetrahedra that share  a cornercorner with one Zn(1)O6 octahedra, corners with two equivalent K(2)O6 pentagonal pyramids, and corners with two equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 41°. In the second P site, P(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent K(2)O6 pentagonal pyramids,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the second O site, O(6) is bonded in a 2-coordinate geometry to one K(1) and two equivalent P(2) atoms. In the third O site, O(7) is bonded in a bent 120 degrees geometry to one K(1) and one Zn(1) atom. In the fourth O site, O(1) is bonded in a distorted single-bond geometry to one K(1), two equivalent K(2), and one P(1) atom. In the fifth O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one P(1) atom. In the sixth O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one P(2) atom. In the seventh O site, O(4) is bonded in a single-bond geometry to one K(2) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K4Zn(P3O11)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.425
_cell_length_b   8.425
_cell_length_c   9.739
_cell_angle_alpha   64.512
_cell_angle_beta   64.512
_cell_angle_gamma   78.414
_symmetry_Int_Tables_number   1
_cell_volume   563.149
_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  0.158  0.158  0.573  1.0
  K  K1  1  0.842  0.842  0.427  1.0
  K  K2  1  0.781  0.219  0.000  1.0
  K  K3  1  0.219  0.781  0.000  1.0
  Zn  Zn4  1  0.500  0.500  0.500  1.0
  P  P5  1  0.260  0.260  0.904  1.0
  P  P6  1  0.740  0.740  0.096  1.0
  P  P7  1  0.989  0.706  0.782  1.0
  P  P8  1  0.706  0.989  0.782  1.0
  P  P9  1  0.011  0.294  0.218  1.0
  P  P10  1  0.294  0.011  0.218  1.0
  O  O11  1  0.157  0.157  0.878  1.0
  O  O12  1  0.843  0.843  0.122  1.0
  O  O13  1  0.393  0.393  0.763  1.0
  O  O14  1  0.607  0.607  0.237  1.0
  O  O15  1  0.152  0.792  0.739  1.0
  O  O16  1  0.792  0.152  0.739  1.0
  O  O17  1  0.848  0.208  0.261  1.0
  O  O18  1  0.208  0.848  0.261  1.0
  O  O19  1  0.994  0.559  0.732  1.0
  O  O20  1  0.559  0.994  0.732  1.0
  O  O21  1  0.006  0.441  0.268  1.0
  O  O22  1  0.441  0.006  0.268  1.0
  O  O23  1  0.127  0.362  0.021  1.0
  O  O24  1  0.362  0.127  0.021  1.0
  O  O25  1  0.873  0.638  0.979  1.0
  O  O26  1  0.638  0.873  0.979  1.0
  O  O27  1  0.861  0.861  0.706  1.0
  O  O28  1  0.139  0.139  0.294  1.0
  O  O29  1  0.729  0.515  0.503  1.0
  O  O30  1  0.515  0.729  0.503  1.0
  O  O31  1  0.271  0.485  0.497  1.0
  O  O32  1  0.485  0.271  0.497  1.0
[/CIF]
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The compound described by K4Zn(P3O11)2 crystallizes in the monoclinic C2/m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one O(1), one O(6), two equivalent O(3), and two equivalent O(7) atoms. In the second K site, K(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form distorted KO6 pentagonal pyramids that share corners with two equivalent P(1)O4 tetrahedra, corners with four equivalent P(2)O4 tetrahedra, and  an edgeedge with one K(2)O6 pentagonal pyramid. Zn(1) is bonded to two equivalent O(2) and four equivalent O(7) atoms to form ZnO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(2), and two equivalent O(5) atoms to form PO4 tetrahedra that share  a cornercorner with one Zn(1)O6 octahedra, corners with two equivalent K(2)O6 pentagonal pyramids, and corners with two equivalent P(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 41°. In the second P site, P(2) is bonded to one O(3), one O(4), one O(5), and one O(6) atom to form PO4 tetrahedra that share corners with two equivalent K(2)O6 pentagonal pyramids,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(2)O4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(5) is bonded in a bent 120 degrees geometry to one P(1) and one P(2) atom. In the second O site, O(6) is bonded in a 2-coordinate geometry to one K(1) and two equivalent P(2) atoms. In the third O site, O(7) is bonded in a bent 120 degrees geometry to one K(1) and one Zn(1) atom. In the fourth O site, O(1) is bonded in a distorted single-bond geometry to one K(1), two equivalent K(2), and one P(1) atom. In the fifth O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one P(1) atom. In the sixth O site, O(3) is bonded in a distorted single-bond geometry to one K(1), one K(2), and one P(2) atom. In the seventh O site, O(4) is bonded in a single-bond geometry to one K(2) and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K4Zn(P3O11)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.425
_cell_length_b   8.425
_cell_length_c   9.739
_cell_angle_alpha   64.512
_cell_angle_beta   64.512
_cell_angle_gamma   78.414
_symmetry_Int_Tables_number   1
_cell_volume   563.149
_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  0.158  0.158  0.573  1.0
  K  K1  1  0.842  0.842  0.427  1.0
  K  K2  1  0.781  0.219  0.000  1.0
  K  K3  1  0.219  0.781  0.000  1.0
  Zn  Zn4  1  0.500  0.500  0.500  1.0
  P  P5  1  0.260  0.260  0.904  1.0
  P  P6  1  0.740  0.740  0.096  1.0
  P  P7  1  0.989  0.706  0.782  1.0
  P  P8  1  0.706  0.989  0.782  1.0
  P  P9  1  0.011  0.294  0.218  1.0
  P  P10  1  0.294  0.011  0.218  1.0
  O  O11  1  0.157  0.157  0.878  1.0
  O  O12  1  0.843  0.843  0.122  1.0
  O  O13  1  0.393  0.393  0.763  1.0
  O  O14  1  0.607  0.607  0.237  1.0
  O  O15  1  0.152  0.792  0.739  1.0
  O  O16  1  0.792  0.152  0.739  1.0
  O  O17  1  0.848  0.208  0.261  1.0
  O  O18  1  0.208  0.848  0.261  1.0
  O  O19  1  0.994  0.559  0.732  1.0
  O  O20  1  0.559  0.994  0.732  1.0
  O  O21  1  0.006  0.441  0.268  1.0
  O  O22  1  0.441  0.006  0.268  1.0
  O  O23  1  0.127  0.362  0.021  1.0
  O  O24  1  0.362  0.127  0.021  1.0
  O  O25  1  0.873  0.638  0.979  1.0
  O  O26  1  0.638  0.873  0.979  1.0
  O  O27  1  0.861  0.861  0.706  1.0
  O  O28  1  0.139  0.139  0.294  1.0
  O  O29  1  0.729  0.515  0.503  1.0
  O  O30  1  0.515  0.729  0.503  1.0
  O  O31  1  0.271  0.485  0.497  1.0
  O  O32  1  0.485  0.271  0.497  1.0
[/CIF]
.