The structure described by Rb5Sn(PSe5)3 crystallizes in the triclinic P-1 space group. There are five inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 9-coordinate geometry to one Se(10), one Se(11), one Se(12), one Se(2), one Se(3), one Se(6), one Se(8), and two equivalent Se(5) atoms. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one Se(12), one Se(14), one Se(15), one Se(6), one Se(8), and three equivalent Se(9) atoms. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to one Se(10), one Se(11), one Se(2), one Se(3), one Se(7), and three equivalent Se(4) atoms. In the fourth Rb site, Rb(4) is bonded to one Se(13), one Se(15), one Se(5), one Se(9), two equivalent Se(12), and two equivalent Se(6) atoms to form RbSe8 hexagonal bipyramids that share corners with two equivalent Rb(4)Se8 hexagonal bipyramids,  a cornercorner with one Sn(1)Se6 octahedra,  a cornercorner with one P(1)Se4 tetrahedra,  an edgeedge with one Rb(4)Se8 hexagonal bipyramid,  an edgeedge with one P(1)Se4 tetrahedra, and edges with two equivalent P(3)Se4 tetrahedra. The corner-sharing octahedral tilt angles are 32°. In the fifth Rb site, Rb(5) is bonded in a 7-coordinate geometry to one Se(1), one Se(4), one Se(7), two equivalent Se(10), and two equivalent Se(11) atoms. Sn(1) is bonded to one Se(14), one Se(2), one Se(3), one Se(5), one Se(7), and one Se(8) atom to form SnSe6 octahedra that share  a cornercorner with one Rb(4)Se8 hexagonal bipyramid,  a cornercorner with one P(1)Se4 tetrahedra,  a cornercorner with one P(2)Se4 tetrahedra, and  a cornercorner with one P(3)Se4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to one Se(10), one Se(13), one Se(6), and one Se(7) atom to form PSe4 tetrahedra that share  a cornercorner with one Rb(4)Se8 hexagonal bipyramid,  a cornercorner with one Sn(1)Se6 octahedra, and  an edgeedge with one Rb(4)Se8 hexagonal bipyramid. The corner-sharing octahedral tilt angles are 71°. In the second P site, P(2) is bonded to one Se(1), one Se(11), one Se(3), and one Se(4) atom to form PSe4 tetrahedra that share  a cornercorner with one Sn(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 74°. In the third P site, P(3) is bonded to one Se(12), one Se(15), one Se(8), and one Se(9) atom to form PSe4 tetrahedra that share  a cornercorner with one Sn(1)Se6 octahedra and edges with two equivalent Rb(4)Se8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 74°. There are fifteen inequivalent Se sites. In the first Se site, Se(1) is bonded in a 3-coordinate geometry to one Rb(5), one P(2), and one Se(2) atom. In the second Se site, Se(2) is bonded in a rectangular see-saw-like geometry to one Rb(1), one Rb(3), one Sn(1), and one Se(1) atom. In the third Se site, Se(3) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(3), one Sn(1), and one P(2) atom. In the fourth Se site, Se(4) is bonded to one Rb(5), three equivalent Rb(3), and one P(2) atom to form a mixture of distorted edge and corner-sharing SeRb4P square pyramids. In the fifth Se site, Se(5) is bonded in a 5-coordinate geometry to one Rb(4), two equivalent Rb(1), one Sn(1), and one Se(15) atom. In the sixth Se site, Se(6) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(2), two equivalent Rb(4), and one P(1) atom. In the seventh Se site, Se(7) is bonded in a 4-coordinate geometry to one Rb(3), one Rb(5), one Sn(1), and one P(1) atom. In the eighth Se site, Se(8) is bonded in a distorted see-saw-like geometry to one Rb(1), one Rb(2), one Sn(1), and one P(3) atom. In the ninth Se site, Se(9) is bonded in a 5-coordinate geometry to one Rb(4), three equivalent Rb(2), and one P(3) atom. In the tenth Se site, Se(10) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(3), two equivalent Rb(5), and one P(1) atom. In the eleventh Se site, Se(11) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(3), two equivalent Rb(5), and one P(2) atom. In the twelfth Se site, Se(12) is bonded to one Rb(1), one Rb(2), two equivalent Rb(4), and one P(3) atom to form distorted edge-sharing SeRb4P square pyramids. In the thirteenth Se site, Se(13) is bonded in a distorted single-bond geometry to one Rb(4), one P(1), and one Se(14) atom. In the fourteenth Se site, Se(14) is bonded in a distorted trigonal non-coplanar geometry to one Rb(2), one Sn(1), and one Se(13) atom. In the fifteenth Se site, Se(15) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(4), one P(3), and one Se(5) atom. is represented by the CIF file [CIF]
data_Rb5Sn(PSe5)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.349
_cell_length_b   11.894
_cell_length_c   19.413
_cell_angle_alpha   86.788
_cell_angle_beta   100.020
_cell_angle_gamma   107.704
_symmetry_Int_Tables_number   1
_cell_volume   1591.881
_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
  Rb  Rb0  1  0.584  0.647  0.754  1.0
  Rb  Rb1  1  0.296  0.135  0.962  1.0
  Rb  Rb2  1  0.704  0.865  0.038  1.0
  Rb  Rb3  1  0.330  0.145  0.545  1.0
  Rb  Rb4  1  0.670  0.855  0.455  1.0
  Rb  Rb5  1  0.057  0.595  0.117  1.0
  Rb  Rb6  1  0.416  0.353  0.246  1.0
  Rb  Rb7  1  0.000  0.386  0.627  1.0
  Rb  Rb8  1  1.000  0.614  0.373  1.0
  Rb  Rb9  1  0.943  0.405  0.883  1.0
  Sn  Sn10  1  0.831  0.098  0.258  1.0
  Sn  Sn11  1  0.169  0.902  0.742  1.0
  P  P12  1  0.414  0.261  0.748  1.0
  P  P13  1  0.232  0.776  0.564  1.0
  P  P14  1  0.768  0.224  0.436  1.0
  P  P15  1  0.972  0.230  0.073  1.0
  P  P16  1  0.028  0.770  0.927  1.0
  P  P17  1  0.586  0.739  0.252  1.0
  Se  Se18  1  0.946  0.682  0.604  1.0
  Se  Se19  1  0.144  0.163  0.360  1.0
  Se  Se20  1  0.054  0.318  0.396  1.0
  Se  Se21  1  0.587  0.099  0.352  1.0
  Se  Se22  1  0.821  0.130  0.532  1.0
  Se  Se23  1  0.123  0.665  0.771  1.0
  Se  Se24  1  0.594  0.644  0.162  1.0
  Se  Se25  1  0.413  0.901  0.648  1.0
  Se  Se26  1  0.131  0.127  0.710  1.0
  Se  Se27  1  0.869  0.873  0.290  1.0
  Se  Se28  1  0.949  0.896  0.847  1.0
  Se  Se29  1  0.051  0.104  0.153  1.0
  Se  Se30  1  0.877  0.335  0.229  1.0
  Se  Se31  1  0.806  0.146  0.975  1.0
  Se  Se32  1  0.476  0.622  0.335  1.0
  Se  Se33  1  0.667  0.373  0.446  1.0
  Se  Se34  1  0.774  0.626  0.941  1.0
  Se  Se35  1  0.629  0.154  0.764  1.0
  Se  Se36  1  0.510  0.004  0.165  1.0
  Se  Se37  1  0.194  0.854  0.025  1.0
  Se  Se38  1  0.741  0.292  0.111  1.0
  Se  Se39  1  0.179  0.870  0.468  1.0
  Se  Se40  1  0.226  0.374  0.059  1.0
  Se  Se41  1  0.333  0.627  0.554  1.0
  Se  Se42  1  0.259  0.708  0.889  1.0
  Se  Se43  1  0.406  0.356  0.838  1.0
  Se  Se44  1  0.524  0.378  0.665  1.0
  Se  Se45  1  0.490  0.996  0.835  1.0
  Se  Se46  1  0.856  0.837  0.640  1.0
  Se  Se47  1  0.371  0.846  0.236  1.0
[/CIF]
.
The structure described by Rb5Sn(PSe5)3 crystallizes in the triclinic P-1 space group. There are five inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 9-coordinate geometry to one Se(10), one Se(11), one Se(12), one Se(2), one Se(3), one Se(6), one Se(8), and two equivalent Se(5) atoms. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one Se(12), one Se(14), one Se(15), one Se(6), one Se(8), and three equivalent Se(9) atoms. In the third Rb site, Rb(3) is bonded in a 8-coordinate geometry to one Se(10), one Se(11), one Se(2), one Se(3), one Se(7), and three equivalent Se(4) atoms. In the fourth Rb site, Rb(4) is bonded to one Se(13), one Se(15), one Se(5), one Se(9), two equivalent Se(12), and two equivalent Se(6) atoms to form RbSe8 hexagonal bipyramids that share corners with two equivalent Rb(4)Se8 hexagonal bipyramids,  a cornercorner with one Sn(1)Se6 octahedra,  a cornercorner with one P(1)Se4 tetrahedra,  an edgeedge with one Rb(4)Se8 hexagonal bipyramid,  an edgeedge with one P(1)Se4 tetrahedra, and edges with two equivalent P(3)Se4 tetrahedra. The corner-sharing octahedral tilt angles are 32°. In the fifth Rb site, Rb(5) is bonded in a 7-coordinate geometry to one Se(1), one Se(4), one Se(7), two equivalent Se(10), and two equivalent Se(11) atoms. Sn(1) is bonded to one Se(14), one Se(2), one Se(3), one Se(5), one Se(7), and one Se(8) atom to form SnSe6 octahedra that share  a cornercorner with one Rb(4)Se8 hexagonal bipyramid,  a cornercorner with one P(1)Se4 tetrahedra,  a cornercorner with one P(2)Se4 tetrahedra, and  a cornercorner with one P(3)Se4 tetrahedra. There are three inequivalent P sites. In the first P site, P(1) is bonded to one Se(10), one Se(13), one Se(6), and one Se(7) atom to form PSe4 tetrahedra that share  a cornercorner with one Rb(4)Se8 hexagonal bipyramid,  a cornercorner with one Sn(1)Se6 octahedra, and  an edgeedge with one Rb(4)Se8 hexagonal bipyramid. The corner-sharing octahedral tilt angles are 71°. In the second P site, P(2) is bonded to one Se(1), one Se(11), one Se(3), and one Se(4) atom to form PSe4 tetrahedra that share  a cornercorner with one Sn(1)Se6 octahedra. The corner-sharing octahedral tilt angles are 74°. In the third P site, P(3) is bonded to one Se(12), one Se(15), one Se(8), and one Se(9) atom to form PSe4 tetrahedra that share  a cornercorner with one Sn(1)Se6 octahedra and edges with two equivalent Rb(4)Se8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 74°. There are fifteen inequivalent Se sites. In the first Se site, Se(1) is bonded in a 3-coordinate geometry to one Rb(5), one P(2), and one Se(2) atom. In the second Se site, Se(2) is bonded in a rectangular see-saw-like geometry to one Rb(1), one Rb(3), one Sn(1), and one Se(1) atom. In the third Se site, Se(3) is bonded in a 4-coordinate geometry to one Rb(1), one Rb(3), one Sn(1), and one P(2) atom. In the fourth Se site, Se(4) is bonded to one Rb(5), three equivalent Rb(3), and one P(2) atom to form a mixture of distorted edge and corner-sharing SeRb4P square pyramids. In the fifth Se site, Se(5) is bonded in a 5-coordinate geometry to one Rb(4), two equivalent Rb(1), one Sn(1), and one Se(15) atom. In the sixth Se site, Se(6) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(2), two equivalent Rb(4), and one P(1) atom. In the seventh Se site, Se(7) is bonded in a 4-coordinate geometry to one Rb(3), one Rb(5), one Sn(1), and one P(1) atom. In the eighth Se site, Se(8) is bonded in a distorted see-saw-like geometry to one Rb(1), one Rb(2), one Sn(1), and one P(3) atom. In the ninth Se site, Se(9) is bonded in a 5-coordinate geometry to one Rb(4), three equivalent Rb(2), and one P(3) atom. In the tenth Se site, Se(10) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(3), two equivalent Rb(5), and one P(1) atom. In the eleventh Se site, Se(11) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(3), two equivalent Rb(5), and one P(2) atom. In the twelfth Se site, Se(12) is bonded to one Rb(1), one Rb(2), two equivalent Rb(4), and one P(3) atom to form distorted edge-sharing SeRb4P square pyramids. In the thirteenth Se site, Se(13) is bonded in a distorted single-bond geometry to one Rb(4), one P(1), and one Se(14) atom. In the fourteenth Se site, Se(14) is bonded in a distorted trigonal non-coplanar geometry to one Rb(2), one Sn(1), and one Se(13) atom. In the fifteenth Se site, Se(15) is bonded in a distorted single-bond geometry to one Rb(2), one Rb(4), one P(3), and one Se(5) atom. is represented by the CIF file [CIF]
data_Rb5Sn(PSe5)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.349
_cell_length_b   11.894
_cell_length_c   19.413
_cell_angle_alpha   86.788
_cell_angle_beta   100.020
_cell_angle_gamma   107.704
_symmetry_Int_Tables_number   1
_cell_volume   1591.881
_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
  Rb  Rb0  1  0.584  0.647  0.754  1.0
  Rb  Rb1  1  0.296  0.135  0.962  1.0
  Rb  Rb2  1  0.704  0.865  0.038  1.0
  Rb  Rb3  1  0.330  0.145  0.545  1.0
  Rb  Rb4  1  0.670  0.855  0.455  1.0
  Rb  Rb5  1  0.057  0.595  0.117  1.0
  Rb  Rb6  1  0.416  0.353  0.246  1.0
  Rb  Rb7  1  0.000  0.386  0.627  1.0
  Rb  Rb8  1  1.000  0.614  0.373  1.0
  Rb  Rb9  1  0.943  0.405  0.883  1.0
  Sn  Sn10  1  0.831  0.098  0.258  1.0
  Sn  Sn11  1  0.169  0.902  0.742  1.0
  P  P12  1  0.414  0.261  0.748  1.0
  P  P13  1  0.232  0.776  0.564  1.0
  P  P14  1  0.768  0.224  0.436  1.0
  P  P15  1  0.972  0.230  0.073  1.0
  P  P16  1  0.028  0.770  0.927  1.0
  P  P17  1  0.586  0.739  0.252  1.0
  Se  Se18  1  0.946  0.682  0.604  1.0
  Se  Se19  1  0.144  0.163  0.360  1.0
  Se  Se20  1  0.054  0.318  0.396  1.0
  Se  Se21  1  0.587  0.099  0.352  1.0
  Se  Se22  1  0.821  0.130  0.532  1.0
  Se  Se23  1  0.123  0.665  0.771  1.0
  Se  Se24  1  0.594  0.644  0.162  1.0
  Se  Se25  1  0.413  0.901  0.648  1.0
  Se  Se26  1  0.131  0.127  0.710  1.0
  Se  Se27  1  0.869  0.873  0.290  1.0
  Se  Se28  1  0.949  0.896  0.847  1.0
  Se  Se29  1  0.051  0.104  0.153  1.0
  Se  Se30  1  0.877  0.335  0.229  1.0
  Se  Se31  1  0.806  0.146  0.975  1.0
  Se  Se32  1  0.476  0.622  0.335  1.0
  Se  Se33  1  0.667  0.373  0.446  1.0
  Se  Se34  1  0.774  0.626  0.941  1.0
  Se  Se35  1  0.629  0.154  0.764  1.0
  Se  Se36  1  0.510  0.004  0.165  1.0
  Se  Se37  1  0.194  0.854  0.025  1.0
  Se  Se38  1  0.741  0.292  0.111  1.0
  Se  Se39  1  0.179  0.870  0.468  1.0
  Se  Se40  1  0.226  0.374  0.059  1.0
  Se  Se41  1  0.333  0.627  0.554  1.0
  Se  Se42  1  0.259  0.708  0.889  1.0
  Se  Se43  1  0.406  0.356  0.838  1.0
  Se  Se44  1  0.524  0.378  0.665  1.0
  Se  Se45  1  0.490  0.996  0.835  1.0
  Se  Se46  1  0.856  0.837  0.640  1.0
  Se  Se47  1  0.371  0.846  0.236  1.0
[/CIF]
.