The structure described by Pr5S9 crystallizes in the monoclinic C2 space group. There are five inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 8-coordinate geometry to one S(10), one S(2), one S(6), one S(7), two equivalent S(1), and two equivalent S(3) atoms. In the second Pr site, Pr(2) is bonded in a 9-coordinate geometry to one S(2), one S(3), one S(4), two equivalent S(5), two equivalent S(8), and two equivalent S(9) atoms. In the third Pr site, Pr(3) is bonded in a 8-coordinate geometry to one S(1), one S(10), one S(4), one S(5), one S(6), one S(7), and two equivalent S(2) atoms. In the fourth Pr site, Pr(4) is bonded in a 8-coordinate geometry to one S(5), one S(7), one S(8), one S(9), two equivalent S(1), and two equivalent S(3) atoms. In the fifth Pr site, Pr(5) is bonded in a 8-coordinate geometry to one S(2), one S(5), one S(7), one S(8), one S(9), and three equivalent S(4) atoms. There are ten inequivalent S sites. In the first S site, S(8) is bonded in a 4-coordinate geometry to one Pr(4), one Pr(5), and two equivalent Pr(2) atoms. In the second S site, S(9) is bonded in a 4-coordinate geometry to one Pr(4), one Pr(5), and two equivalent Pr(2) atoms. In the third S site, S(10) is bonded in a 8-coordinate geometry to two equivalent Pr(1), two equivalent Pr(3), two equivalent S(6), and two equivalent S(7) atoms. In the fourth S site, S(1) is bonded to one Pr(3), two equivalent Pr(1), and two equivalent Pr(4) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids. In the fifth S site, S(2) is bonded to one Pr(1), one Pr(2), one Pr(5), and two equivalent Pr(3) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids. In the sixth S site, S(3) is bonded to one Pr(2), two equivalent Pr(1), and two equivalent Pr(4) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids. In the seventh S site, S(4) is bonded to one Pr(2), one Pr(3), and three equivalent Pr(5) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids. In the eighth S site, S(5) is bonded to one Pr(3), one Pr(4), one Pr(5), and two equivalent Pr(2) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids. In the ninth S site, S(6) is bonded in a 4-coordinate geometry to two equivalent Pr(1), two equivalent Pr(3), and two equivalent S(10) atoms. In the tenth S site, S(7) is bonded in a 5-coordinate geometry to one Pr(1), one Pr(3), one Pr(4), one Pr(5), and one S(10) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr5S9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.230
_cell_length_b   12.230
_cell_length_c   10.009
_cell_angle_alpha   82.024
_cell_angle_beta   82.024
_cell_angle_gamma   26.344
_symmetry_Int_Tables_number   1
_cell_volume   657.553
_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
  Pr  Pr0  1  0.941  0.045  0.235  1.0
  Pr  Pr1  1  0.149  0.250  0.848  1.0
  Pr  Pr2  1  0.346  0.444  0.428  1.0
  Pr  Pr3  1  0.533  0.657  0.041  1.0
  Pr  Pr4  1  0.760  0.832  0.631  1.0
  Pr  Pr5  1  0.343  0.467  0.959  1.0
  Pr  Pr6  1  0.556  0.654  0.572  1.0
  Pr  Pr7  1  0.750  0.851  0.152  1.0
  Pr  Pr8  1  0.955  0.059  0.765  1.0
  Pr  Pr9  1  0.168  0.240  0.369  1.0
  S  S10  1  0.472  0.575  0.821  1.0
  S  S11  1  0.074  0.177  0.626  1.0
  S  S12  1  0.865  0.982  0.012  1.0
  S  S13  1  0.684  0.757  0.423  1.0
  S  S14  1  0.271  0.373  0.213  1.0
  S  S15  1  0.018  0.135  0.988  1.0
  S  S16  1  0.627  0.729  0.787  1.0
  S  S17  1  0.425  0.528  0.179  1.0
  S  S18  1  0.243  0.316  0.577  1.0
  S  S19  1  0.823  0.926  0.374  1.0
  S  S20  1  0.700  0.300  0.500  1.0
  S  S21  1  0.286  0.889  0.327  1.0
  S  S22  1  0.111  0.714  0.673  1.0
  S  S23  1  0.892  0.486  0.124  1.0
  S  S24  1  0.514  0.108  0.876  1.0
  S  S25  1  0.003  0.608  0.888  1.0
  S  S26  1  0.199  0.801  0.500  1.0
  S  S27  1  0.392  0.997  0.112  1.0
[/CIF]
.
The structure described by Pr5S9 crystallizes in the monoclinic C2 space group. There are five inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 8-coordinate geometry to one S(10), one S(2), one S(6), one S(7), two equivalent S(1), and two equivalent S(3) atoms. In the second Pr site, Pr(2) is bonded in a 9-coordinate geometry to one S(2), one S(3), one S(4), two equivalent S(5), two equivalent S(8), and two equivalent S(9) atoms. In the third Pr site, Pr(3) is bonded in a 8-coordinate geometry to one S(1), one S(10), one S(4), one S(5), one S(6), one S(7), and two equivalent S(2) atoms. In the fourth Pr site, Pr(4) is bonded in a 8-coordinate geometry to one S(5), one S(7), one S(8), one S(9), two equivalent S(1), and two equivalent S(3) atoms. In the fifth Pr site, Pr(5) is bonded in a 8-coordinate geometry to one S(2), one S(5), one S(7), one S(8), one S(9), and three equivalent S(4) atoms. There are ten inequivalent S sites. In the first S site, S(8) is bonded in a 4-coordinate geometry to one Pr(4), one Pr(5), and two equivalent Pr(2) atoms. In the second S site, S(9) is bonded in a 4-coordinate geometry to one Pr(4), one Pr(5), and two equivalent Pr(2) atoms. In the third S site, S(10) is bonded in a 8-coordinate geometry to two equivalent Pr(1), two equivalent Pr(3), two equivalent S(6), and two equivalent S(7) atoms. In the fourth S site, S(1) is bonded to one Pr(3), two equivalent Pr(1), and two equivalent Pr(4) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids. In the fifth S site, S(2) is bonded to one Pr(1), one Pr(2), one Pr(5), and two equivalent Pr(3) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids. In the sixth S site, S(3) is bonded to one Pr(2), two equivalent Pr(1), and two equivalent Pr(4) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids. In the seventh S site, S(4) is bonded to one Pr(2), one Pr(3), and three equivalent Pr(5) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids. In the eighth S site, S(5) is bonded to one Pr(3), one Pr(4), one Pr(5), and two equivalent Pr(2) atoms to form a mixture of distorted edge and corner-sharing SPr5 trigonal bipyramids. In the ninth S site, S(6) is bonded in a 4-coordinate geometry to two equivalent Pr(1), two equivalent Pr(3), and two equivalent S(10) atoms. In the tenth S site, S(7) is bonded in a 5-coordinate geometry to one Pr(1), one Pr(3), one Pr(4), one Pr(5), and one S(10) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr5S9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.230
_cell_length_b   12.230
_cell_length_c   10.009
_cell_angle_alpha   82.024
_cell_angle_beta   82.024
_cell_angle_gamma   26.344
_symmetry_Int_Tables_number   1
_cell_volume   657.553
_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
  Pr  Pr0  1  0.941  0.045  0.235  1.0
  Pr  Pr1  1  0.149  0.250  0.848  1.0
  Pr  Pr2  1  0.346  0.444  0.428  1.0
  Pr  Pr3  1  0.533  0.657  0.041  1.0
  Pr  Pr4  1  0.760  0.832  0.631  1.0
  Pr  Pr5  1  0.343  0.467  0.959  1.0
  Pr  Pr6  1  0.556  0.654  0.572  1.0
  Pr  Pr7  1  0.750  0.851  0.152  1.0
  Pr  Pr8  1  0.955  0.059  0.765  1.0
  Pr  Pr9  1  0.168  0.240  0.369  1.0
  S  S10  1  0.472  0.575  0.821  1.0
  S  S11  1  0.074  0.177  0.626  1.0
  S  S12  1  0.865  0.982  0.012  1.0
  S  S13  1  0.684  0.757  0.423  1.0
  S  S14  1  0.271  0.373  0.213  1.0
  S  S15  1  0.018  0.135  0.988  1.0
  S  S16  1  0.627  0.729  0.787  1.0
  S  S17  1  0.425  0.528  0.179  1.0
  S  S18  1  0.243  0.316  0.577  1.0
  S  S19  1  0.823  0.926  0.374  1.0
  S  S20  1  0.700  0.300  0.500  1.0
  S  S21  1  0.286  0.889  0.327  1.0
  S  S22  1  0.111  0.714  0.673  1.0
  S  S23  1  0.892  0.486  0.124  1.0
  S  S24  1  0.514  0.108  0.876  1.0
  S  S25  1  0.003  0.608  0.888  1.0
  S  S26  1  0.199  0.801  0.500  1.0
  S  S27  1  0.392  0.997  0.112  1.0
[/CIF]
.