The structure described by Rb2PrO3 is Krennerite-derived structured and crystallizes in the orthorhombic Cmc2_1 space group. Rb(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. Pr(1) is bonded to one O(2) and four equivalent O(1) atoms to form distorted edge-sharing PrO5 trigonal bipyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Rb(1) and two equivalent Pr(1) atoms to form a mixture of distorted edge, face, and corner-sharing ORb4Pr2 octahedra. The corner-sharing octahedral tilt angles range from 38-48°. In the second O site, O(2) is bonded in a 5-coordinate geometry to four equivalent Rb(1) and one Pr(1) atom. is represented by the CIF card [CIF]
data_Rb2PrO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.861
_cell_length_b   6.861
_cell_length_c   6.581
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   113.352
_symmetry_Int_Tables_number   1
_cell_volume   284.392
_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
  Rb  Rb0  1  0.813  0.477  0.267  1.0
  Rb  Rb1  1  0.523  0.187  0.767  1.0
  Rb  Rb2  1  0.187  0.523  0.767  1.0
  Rb  Rb3  1  0.477  0.813  0.267  1.0
  Pr  Pr4  1  0.102  0.102  0.238  1.0
  Pr  Pr5  1  0.898  0.898  0.738  1.0
  O  O6  1  0.852  0.114  0.999  1.0
  O  O7  1  0.886  0.148  0.499  1.0
  O  O8  1  0.609  0.609  0.671  1.0
  O  O9  1  0.391  0.391  0.171  1.0
  O  O10  1  0.114  0.852  0.999  1.0
  O  O11  1  0.148  0.886  0.499  1.0
[/CIF]
.
The structure described by Rb2PrO3 is Krennerite-derived structured and crystallizes in the orthorhombic Cmc2_1 space group. Rb(1) is bonded in a 6-coordinate geometry to two equivalent O(2) and four equivalent O(1) atoms. Pr(1) is bonded to one O(2) and four equivalent O(1) atoms to form distorted edge-sharing PrO5 trigonal bipyramids. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Rb(1) and two equivalent Pr(1) atoms to form a mixture of distorted edge, face, and corner-sharing ORb4Pr2 octahedra. The corner-sharing octahedral tilt angles range from 38-48°. In the second O site, O(2) is bonded in a 5-coordinate geometry to four equivalent Rb(1) and one Pr(1) atom. is represented by the CIF card [CIF]
data_Rb2PrO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.861
_cell_length_b   6.861
_cell_length_c   6.581
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   113.352
_symmetry_Int_Tables_number   1
_cell_volume   284.392
_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
  Rb  Rb0  1  0.813  0.477  0.267  1.0
  Rb  Rb1  1  0.523  0.187  0.767  1.0
  Rb  Rb2  1  0.187  0.523  0.767  1.0
  Rb  Rb3  1  0.477  0.813  0.267  1.0
  Pr  Pr4  1  0.102  0.102  0.238  1.0
  Pr  Pr5  1  0.898  0.898  0.738  1.0
  O  O6  1  0.852  0.114  0.999  1.0
  O  O7  1  0.886  0.148  0.499  1.0
  O  O8  1  0.609  0.609  0.671  1.0
  O  O9  1  0.391  0.391  0.171  1.0
  O  O10  1  0.114  0.852  0.999  1.0
  O  O11  1  0.148  0.886  0.499  1.0
[/CIF]
.