The crystal structure described by KPrP2Se6 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 8-coordinate geometry to one Se(1), one Se(4), two equivalent Se(3), two equivalent Se(5), and two equivalent Se(6) atoms. Pr(1) is bonded in a 9-coordinate geometry to one Se(3), one Se(5), one Se(6), two equivalent Se(1), two equivalent Se(2), and two equivalent Se(4) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one P(2), one Se(1), one Se(5), and one Se(6) atom to form distorted PPSe3 tetrahedra that share  a cornercorner with one Se(3)K2PrP tetrahedra. In the second P site, P(2) is bonded in a distorted tetrahedral geometry to one P(1), one Se(2), one Se(3), and one Se(4) atom. There are six inequivalent Se sites. In the first Se site, Se(5) is bonded in a 4-coordinate geometry to two equivalent K(1), one Pr(1), and one P(1) atom. In the second Se site, Se(6) is bonded in a distorted see-saw-like geometry to two equivalent K(1), one Pr(1), and one P(1) atom. In the third Se site, Se(1) is bonded in a distorted rectangular see-saw-like geometry to one K(1), two equivalent Pr(1), and one P(1) atom. In the fourth Se site, Se(2) is bonded in a distorted T-shaped geometry to two equivalent Pr(1) and one P(2) atom. In the fifth Se site, Se(3) is bonded to two equivalent K(1), one Pr(1), and one P(2) atom to form distorted SeK2PrP tetrahedra that share  a cornercorner with one P(1)PSe3 tetrahedra and corners with two equivalent Se(3)K2PrP tetrahedra. In the sixth Se site, Se(4) is bonded in a 4-coordinate geometry to one K(1), two equivalent Pr(1), and one P(2) atom. is represented by the CIF card [CIF]
data_KPr(PSe3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.898
_cell_length_b   11.979
_cell_length_c   12.574
_cell_angle_alpha   70.477
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1121.140
_cell_formula_units_Z   4
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  0.413  0.626  0.128  1.0
  K  K1  1  0.587  0.374  0.872  1.0
  K  K2  1  0.913  0.874  0.872  1.0
  K  K3  1  0.087  0.126  0.128  1.0
  Pr  Pr4  1  0.603  0.905  0.351  1.0
  Pr  Pr5  1  0.397  0.095  0.649  1.0
  Pr  Pr6  1  0.103  0.595  0.649  1.0
  Pr  Pr7  1  0.897  0.405  0.351  1.0
  P  P8  1  0.883  0.733  0.210  1.0
  P  P9  1  0.117  0.267  0.790  1.0
  P  P10  1  0.383  0.767  0.790  1.0
  P  P11  1  0.617  0.233  0.210  1.0
  P  P12  1  0.598  0.753  0.676  1.0
  P  P13  1  0.402  0.247  0.324  1.0
  P  P14  1  0.098  0.747  0.324  1.0
  P  P15  1  0.902  0.253  0.676  1.0
  Se  Se16  1  0.689  0.633  0.329  1.0
  Se  Se17  1  0.311  0.367  0.671  1.0
  Se  Se18  1  0.189  0.867  0.671  1.0
  Se  Se19  1  0.811  0.133  0.329  1.0
  Se  Se20  1  0.973  0.816  0.449  1.0
  Se  Se21  1  0.027  0.184  0.551  1.0
  Se  Se22  1  0.473  0.684  0.551  1.0
  Se  Se23  1  0.527  0.316  0.449  1.0
  Se  Se24  1  0.291  0.861  0.215  1.0
  Se  Se25  1  0.709  0.139  0.785  1.0
  Se  Se26  1  0.791  0.639  0.785  1.0
  Se  Se27  1  0.209  0.361  0.215  1.0
  Se  Se28  1  0.690  0.936  0.588  1.0
  Se  Se29  1  0.310  0.064  0.412  1.0
  Se  Se30  1  0.190  0.564  0.412  1.0
  Se  Se31  1  0.810  0.436  0.588  1.0
  Se  Se32  1  0.982  0.628  0.110  1.0
  Se  Se33  1  0.018  0.372  0.890  1.0
  Se  Se34  1  0.482  0.872  0.890  1.0
  Se  Se35  1  0.518  0.128  0.110  1.0
  Se  Se36  1  0.786  0.914  0.130  1.0
  Se  Se37  1  0.214  0.086  0.870  1.0
  Se  Se38  1  0.286  0.586  0.870  1.0
  Se  Se39  1  0.714  0.414  0.130  1.0
[/CIF]
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The crystal structure described by KPrP2Se6 crystallizes in the monoclinic P2_1/c space group. K(1) is bonded in a 8-coordinate geometry to one Se(1), one Se(4), two equivalent Se(3), two equivalent Se(5), and two equivalent Se(6) atoms. Pr(1) is bonded in a 9-coordinate geometry to one Se(3), one Se(5), one Se(6), two equivalent Se(1), two equivalent Se(2), and two equivalent Se(4) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded to one P(2), one Se(1), one Se(5), and one Se(6) atom to form distorted PPSe3 tetrahedra that share  a cornercorner with one Se(3)K2PrP tetrahedra. In the second P site, P(2) is bonded in a distorted tetrahedral geometry to one P(1), one Se(2), one Se(3), and one Se(4) atom. There are six inequivalent Se sites. In the first Se site, Se(5) is bonded in a 4-coordinate geometry to two equivalent K(1), one Pr(1), and one P(1) atom. In the second Se site, Se(6) is bonded in a distorted see-saw-like geometry to two equivalent K(1), one Pr(1), and one P(1) atom. In the third Se site, Se(1) is bonded in a distorted rectangular see-saw-like geometry to one K(1), two equivalent Pr(1), and one P(1) atom. In the fourth Se site, Se(2) is bonded in a distorted T-shaped geometry to two equivalent Pr(1) and one P(2) atom. In the fifth Se site, Se(3) is bonded to two equivalent K(1), one Pr(1), and one P(2) atom to form distorted SeK2PrP tetrahedra that share  a cornercorner with one P(1)PSe3 tetrahedra and corners with two equivalent Se(3)K2PrP tetrahedra. In the sixth Se site, Se(4) is bonded in a 4-coordinate geometry to one K(1), two equivalent Pr(1), and one P(2) atom. is represented by the CIF card [CIF]
data_KPr(PSe3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.898
_cell_length_b   11.979
_cell_length_c   12.574
_cell_angle_alpha   70.477
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1121.140
_cell_formula_units_Z   4
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  0.413  0.626  0.128  1.0
  K  K1  1  0.587  0.374  0.872  1.0
  K  K2  1  0.913  0.874  0.872  1.0
  K  K3  1  0.087  0.126  0.128  1.0
  Pr  Pr4  1  0.603  0.905  0.351  1.0
  Pr  Pr5  1  0.397  0.095  0.649  1.0
  Pr  Pr6  1  0.103  0.595  0.649  1.0
  Pr  Pr7  1  0.897  0.405  0.351  1.0
  P  P8  1  0.883  0.733  0.210  1.0
  P  P9  1  0.117  0.267  0.790  1.0
  P  P10  1  0.383  0.767  0.790  1.0
  P  P11  1  0.617  0.233  0.210  1.0
  P  P12  1  0.598  0.753  0.676  1.0
  P  P13  1  0.402  0.247  0.324  1.0
  P  P14  1  0.098  0.747  0.324  1.0
  P  P15  1  0.902  0.253  0.676  1.0
  Se  Se16  1  0.689  0.633  0.329  1.0
  Se  Se17  1  0.311  0.367  0.671  1.0
  Se  Se18  1  0.189  0.867  0.671  1.0
  Se  Se19  1  0.811  0.133  0.329  1.0
  Se  Se20  1  0.973  0.816  0.449  1.0
  Se  Se21  1  0.027  0.184  0.551  1.0
  Se  Se22  1  0.473  0.684  0.551  1.0
  Se  Se23  1  0.527  0.316  0.449  1.0
  Se  Se24  1  0.291  0.861  0.215  1.0
  Se  Se25  1  0.709  0.139  0.785  1.0
  Se  Se26  1  0.791  0.639  0.785  1.0
  Se  Se27  1  0.209  0.361  0.215  1.0
  Se  Se28  1  0.690  0.936  0.588  1.0
  Se  Se29  1  0.310  0.064  0.412  1.0
  Se  Se30  1  0.190  0.564  0.412  1.0
  Se  Se31  1  0.810  0.436  0.588  1.0
  Se  Se32  1  0.982  0.628  0.110  1.0
  Se  Se33  1  0.018  0.372  0.890  1.0
  Se  Se34  1  0.482  0.872  0.890  1.0
  Se  Se35  1  0.518  0.128  0.110  1.0
  Se  Se36  1  0.786  0.914  0.130  1.0
  Se  Se37  1  0.214  0.086  0.870  1.0
  Se  Se38  1  0.286  0.586  0.870  1.0
  Se  Se39  1  0.714  0.414  0.130  1.0
[/CIF]
.