The material described by PPPr crystallizes in the monoclinic P2_1/c space group. Pr(1) is bonded in a 9-coordinate geometry to four equivalent P(2) and five equivalent P(1) atoms. There are two inequivalent P sites. In the first P site, P(2) is bonded in a 6-coordinate geometry to four equivalent Pr(1), one P(1), and one P(2) atom. In the second P site, P(1) is bonded to five equivalent Pr(1) and one P(2) atom to form a mixture of distorted edge and corner-sharing PPr5P pentagonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_PrP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.626
_cell_length_b   4.072
_cell_length_c   10.218
_cell_angle_alpha   74.641
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   265.839
_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  0.316  0.080  0.142  1.0
  Pr  Pr1  1  0.816  0.920  0.358  1.0
  Pr  Pr2  1  0.684  0.920  0.858  1.0
  Pr  Pr3  1  0.184  0.080  0.642  1.0
  P  P4  1  0.663  0.533  0.162  1.0
  P  P5  1  0.163  0.467  0.338  1.0
  P  P6  1  0.337  0.467  0.838  1.0
  P  P7  1  0.837  0.533  0.662  1.0
  P  P8  1  0.380  0.692  0.454  1.0
  P  P9  1  0.880  0.308  0.046  1.0
  P  P10  1  0.620  0.308  0.546  1.0
  P  P11  1  0.120  0.692  0.954  1.0
[/CIF]
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The material described by PPPr crystallizes in the monoclinic P2_1/c space group. Pr(1) is bonded in a 9-coordinate geometry to four equivalent P(2) and five equivalent P(1) atoms. There are two inequivalent P sites. In the first P site, P(2) is bonded in a 6-coordinate geometry to four equivalent Pr(1), one P(1), and one P(2) atom. In the second P site, P(1) is bonded to five equivalent Pr(1) and one P(2) atom to form a mixture of distorted edge and corner-sharing PPr5P pentagonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_PrP2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.626
_cell_length_b   4.072
_cell_length_c   10.218
_cell_angle_alpha   74.641
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   265.839
_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  0.316  0.080  0.142  1.0
  Pr  Pr1  1  0.816  0.920  0.358  1.0
  Pr  Pr2  1  0.684  0.920  0.858  1.0
  Pr  Pr3  1  0.184  0.080  0.642  1.0
  P  P4  1  0.663  0.533  0.162  1.0
  P  P5  1  0.163  0.467  0.338  1.0
  P  P6  1  0.337  0.467  0.838  1.0
  P  P7  1  0.837  0.533  0.662  1.0
  P  P8  1  0.380  0.692  0.454  1.0
  P  P9  1  0.880  0.308  0.046  1.0
  P  P10  1  0.620  0.308  0.546  1.0
  P  P11  1  0.120  0.692  0.954  1.0
[/CIF]
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