The structure described by PrO3 crystallizes in the hexagonal P6_3/m space group. Pr(1) is bonded in a 9-coordinate geometry to nine equivalent O(1) atoms. O(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Pr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_PrO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.630
_cell_length_b   5.630
_cell_length_c   4.411
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   121.078
_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  0.333  0.667  0.750  1.0
  Pr  Pr1  1  0.667  0.333  0.250  1.0
  O  O2  1  0.420  0.144  0.750  1.0
  O  O3  1  0.580  0.856  0.250  1.0
  O  O4  1  0.856  0.276  0.750  1.0
  O  O5  1  0.144  0.724  0.250  1.0
  O  O6  1  0.724  0.580  0.750  1.0
  O  O7  1  0.276  0.420  0.250  1.0
[/CIF]
.
The structure described by PrO3 crystallizes in the hexagonal P6_3/m space group. Pr(1) is bonded in a 9-coordinate geometry to nine equivalent O(1) atoms. O(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent Pr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_PrO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.630
_cell_length_b   5.630
_cell_length_c   4.411
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   121.078
_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  0.333  0.667  0.750  1.0
  Pr  Pr1  1  0.667  0.333  0.250  1.0
  O  O2  1  0.420  0.144  0.750  1.0
  O  O3  1  0.580  0.856  0.250  1.0
  O  O4  1  0.856  0.276  0.750  1.0
  O  O5  1  0.144  0.724  0.250  1.0
  O  O6  1  0.724  0.580  0.750  1.0
  O  O7  1  0.276  0.420  0.250  1.0
[/CIF]
.