The compound described by Pr2S2O crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 7-coordinate geometry to two equivalent S(2), four equivalent S(1), and one O(1) atom. In the second Pr site, Pr(2) is bonded in a 7-coordinate geometry to one S(1), three equivalent S(2), and three equivalent O(1) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded to one Pr(2) and four equivalent Pr(1) atoms to form distorted SPr5 trigonal bipyramids that share corners with three equivalent O(1)Pr4 tetrahedra, corners with four equivalent S(1)Pr5 trigonal bipyramids, edges with two equivalent O(1)Pr4 tetrahedra, and edges with four equivalent S(1)Pr5 trigonal bipyramids. In the second S site, S(2) is bonded in a 5-coordinate geometry to two equivalent Pr(1) and three equivalent Pr(2) atoms. O(1) is bonded to one Pr(1) and three equivalent Pr(2) atoms to form OPr4 tetrahedra that share corners with four equivalent O(1)Pr4 tetrahedra, corners with three equivalent S(1)Pr5 trigonal bipyramids,  an edgeedge with one O(1)Pr4 tetrahedra, and edges with two equivalent S(1)Pr5 trigonal bipyramids. is represented by the CIF file [CIF]
data_Pr2S2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.255
_cell_length_b   7.143
_cell_length_c   8.619
_cell_angle_alpha   81.445
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   441.700
_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
  Pr  Pr0  1  0.444  0.248  0.137  1.0
  Pr  Pr1  1  0.056  0.748  0.137  1.0
  Pr  Pr2  1  0.865  0.314  0.419  1.0
  Pr  Pr3  1  0.635  0.814  0.419  1.0
  Pr  Pr4  1  0.365  0.186  0.581  1.0
  Pr  Pr5  1  0.135  0.686  0.581  1.0
  Pr  Pr6  1  0.944  0.252  0.863  1.0
  Pr  Pr7  1  0.556  0.752  0.863  1.0
  S  S8  1  0.775  0.472  0.079  1.0
  S  S9  1  0.725  0.972  0.079  1.0
  S  S10  1  0.145  0.063  0.324  1.0
  S  S11  1  0.355  0.563  0.324  1.0
  S  S12  1  0.645  0.437  0.676  1.0
  S  S13  1  0.855  0.937  0.676  1.0
  S  S14  1  0.275  0.028  0.921  1.0
  S  S15  1  0.225  0.528  0.921  1.0
  O  O16  1  0.587  0.149  0.383  1.0
  O  O17  1  0.913  0.649  0.383  1.0
  O  O18  1  0.087  0.351  0.617  1.0
  O  O19  1  0.413  0.851  0.617  1.0
[/CIF]
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The compound described by Pr2S2O crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 7-coordinate geometry to two equivalent S(2), four equivalent S(1), and one O(1) atom. In the second Pr site, Pr(2) is bonded in a 7-coordinate geometry to one S(1), three equivalent S(2), and three equivalent O(1) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded to one Pr(2) and four equivalent Pr(1) atoms to form distorted SPr5 trigonal bipyramids that share corners with three equivalent O(1)Pr4 tetrahedra, corners with four equivalent S(1)Pr5 trigonal bipyramids, edges with two equivalent O(1)Pr4 tetrahedra, and edges with four equivalent S(1)Pr5 trigonal bipyramids. In the second S site, S(2) is bonded in a 5-coordinate geometry to two equivalent Pr(1) and three equivalent Pr(2) atoms. O(1) is bonded to one Pr(1) and three equivalent Pr(2) atoms to form OPr4 tetrahedra that share corners with four equivalent O(1)Pr4 tetrahedra, corners with three equivalent S(1)Pr5 trigonal bipyramids,  an edgeedge with one O(1)Pr4 tetrahedra, and edges with two equivalent S(1)Pr5 trigonal bipyramids. is represented by the CIF file [CIF]
data_Pr2S2O
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.255
_cell_length_b   7.143
_cell_length_c   8.619
_cell_angle_alpha   81.445
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   441.700
_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
  Pr  Pr0  1  0.444  0.248  0.137  1.0
  Pr  Pr1  1  0.056  0.748  0.137  1.0
  Pr  Pr2  1  0.865  0.314  0.419  1.0
  Pr  Pr3  1  0.635  0.814  0.419  1.0
  Pr  Pr4  1  0.365  0.186  0.581  1.0
  Pr  Pr5  1  0.135  0.686  0.581  1.0
  Pr  Pr6  1  0.944  0.252  0.863  1.0
  Pr  Pr7  1  0.556  0.752  0.863  1.0
  S  S8  1  0.775  0.472  0.079  1.0
  S  S9  1  0.725  0.972  0.079  1.0
  S  S10  1  0.145  0.063  0.324  1.0
  S  S11  1  0.355  0.563  0.324  1.0
  S  S12  1  0.645  0.437  0.676  1.0
  S  S13  1  0.855  0.937  0.676  1.0
  S  S14  1  0.275  0.028  0.921  1.0
  S  S15  1  0.225  0.528  0.921  1.0
  O  O16  1  0.587  0.149  0.383  1.0
  O  O17  1  0.913  0.649  0.383  1.0
  O  O18  1  0.087  0.351  0.617  1.0
  O  O19  1  0.413  0.851  0.617  1.0
[/CIF]
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