The material described by Pr2(SO4)3 crystallizes in the monoclinic C2/c space group. Pr(1) is bonded in a 9-coordinate geometry to one O(3), one O(4), one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second S site, S(2) is bonded in a tetrahedral geometry to two equivalent O(5) and two equivalent O(6) atoms. There are six inequivalent O sites. In the first O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Pr(1) and one S(1) atom. In the second O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Pr(1) and one S(2) atom. In the third O site, O(6) is bonded in a distorted water-like geometry to one Pr(1) and one S(2) atom. In the fourth O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Pr(1) and one S(1) atom. In the fifth O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Pr(1) and one S(1) atom. In the sixth O site, O(3) is bonded in a bent 150 degrees geometry to one Pr(1) and one S(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2(SO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.326
_cell_length_b   11.326
_cell_length_c   6.971
_cell_angle_alpha   73.632
_cell_angle_beta   73.632
_cell_angle_gamma   34.512
_symmetry_Int_Tables_number   1
_cell_volume   484.055
_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  0.722  0.014  0.631  1.0
  Pr  Pr1  1  0.278  0.986  0.369  1.0
  Pr  Pr2  1  0.986  0.278  0.869  1.0
  Pr  Pr3  1  0.014  0.722  0.131  1.0
  S  S4  1  0.500  0.868  0.820  1.0
  S  S5  1  0.500  0.132  0.180  1.0
  S  S6  1  0.132  0.500  0.680  1.0
  S  S7  1  0.868  0.500  0.320  1.0
  S  S8  1  0.833  0.167  0.750  1.0
  S  S9  1  0.167  0.833  0.250  1.0
  O  O10  1  0.344  0.962  0.696  1.0
  O  O11  1  0.656  0.038  0.304  1.0
  O  O12  1  0.038  0.656  0.804  1.0
  O  O13  1  0.962  0.344  0.196  1.0
  O  O14  1  0.629  0.016  0.998  1.0
  O  O15  1  0.371  0.984  0.002  1.0
  O  O16  1  0.984  0.371  0.502  1.0
  O  O17  1  0.016  0.629  0.498  1.0
  O  O18  1  0.354  0.351  0.626  1.0
  O  O19  1  0.646  0.649  0.374  1.0
  O  O20  1  0.649  0.646  0.874  1.0
  O  O21  1  0.351  0.354  0.126  1.0
  O  O22  1  0.603  0.898  0.711  1.0
  O  O23  1  0.397  0.102  0.289  1.0
  O  O24  1  0.102  0.397  0.789  1.0
  O  O25  1  0.898  0.603  0.211  1.0
  O  O26  1  0.908  0.981  0.855  1.0
  O  O27  1  0.092  0.019  0.145  1.0
  O  O28  1  0.019  0.092  0.645  1.0
  O  O29  1  0.981  0.908  0.355  1.0
  O  O30  1  0.692  0.263  0.609  1.0
  O  O31  1  0.308  0.737  0.391  1.0
  O  O32  1  0.737  0.308  0.891  1.0
  O  O33  1  0.263  0.692  0.109  1.0
[/CIF]
.
The material described by Pr2(SO4)3 crystallizes in the monoclinic C2/c space group. Pr(1) is bonded in a 9-coordinate geometry to one O(3), one O(4), one O(6), two equivalent O(1), two equivalent O(2), and two equivalent O(5) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. In the second S site, S(2) is bonded in a tetrahedral geometry to two equivalent O(5) and two equivalent O(6) atoms. There are six inequivalent O sites. In the first O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Pr(1) and one S(1) atom. In the second O site, O(5) is bonded in a 3-coordinate geometry to two equivalent Pr(1) and one S(2) atom. In the third O site, O(6) is bonded in a distorted water-like geometry to one Pr(1) and one S(2) atom. In the fourth O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Pr(1) and one S(1) atom. In the fifth O site, O(2) is bonded in a distorted single-bond geometry to two equivalent Pr(1) and one S(1) atom. In the sixth O site, O(3) is bonded in a bent 150 degrees geometry to one Pr(1) and one S(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2(SO4)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.326
_cell_length_b   11.326
_cell_length_c   6.971
_cell_angle_alpha   73.632
_cell_angle_beta   73.632
_cell_angle_gamma   34.512
_symmetry_Int_Tables_number   1
_cell_volume   484.055
_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  0.722  0.014  0.631  1.0
  Pr  Pr1  1  0.278  0.986  0.369  1.0
  Pr  Pr2  1  0.986  0.278  0.869  1.0
  Pr  Pr3  1  0.014  0.722  0.131  1.0
  S  S4  1  0.500  0.868  0.820  1.0
  S  S5  1  0.500  0.132  0.180  1.0
  S  S6  1  0.132  0.500  0.680  1.0
  S  S7  1  0.868  0.500  0.320  1.0
  S  S8  1  0.833  0.167  0.750  1.0
  S  S9  1  0.167  0.833  0.250  1.0
  O  O10  1  0.344  0.962  0.696  1.0
  O  O11  1  0.656  0.038  0.304  1.0
  O  O12  1  0.038  0.656  0.804  1.0
  O  O13  1  0.962  0.344  0.196  1.0
  O  O14  1  0.629  0.016  0.998  1.0
  O  O15  1  0.371  0.984  0.002  1.0
  O  O16  1  0.984  0.371  0.502  1.0
  O  O17  1  0.016  0.629  0.498  1.0
  O  O18  1  0.354  0.351  0.626  1.0
  O  O19  1  0.646  0.649  0.374  1.0
  O  O20  1  0.649  0.646  0.874  1.0
  O  O21  1  0.351  0.354  0.126  1.0
  O  O22  1  0.603  0.898  0.711  1.0
  O  O23  1  0.397  0.102  0.289  1.0
  O  O24  1  0.102  0.397  0.789  1.0
  O  O25  1  0.898  0.603  0.211  1.0
  O  O26  1  0.908  0.981  0.855  1.0
  O  O27  1  0.092  0.019  0.145  1.0
  O  O28  1  0.019  0.092  0.645  1.0
  O  O29  1  0.981  0.908  0.355  1.0
  O  O30  1  0.692  0.263  0.609  1.0
  O  O31  1  0.308  0.737  0.391  1.0
  O  O32  1  0.737  0.308  0.891  1.0
  O  O33  1  0.263  0.692  0.109  1.0
[/CIF]
.