The structure described by Rb2PrO3 is High Pressure (4-7GPa) Tellurium-derived structured and crystallizes in the orthorhombic Fddd space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form distorted RbO6 octahedra that share corners with two equivalent Rb(1)O6 octahedra, corners with two equivalent Rb(2)O6 octahedra, corners with two equivalent Pr(1)O6 octahedra, edges with two equivalent Rb(1)O6 octahedra, edges with five equivalent Rb(2)O6 octahedra, and edges with five equivalent Pr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 15-23°. In the second Rb site, Rb(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form distorted RbO6 octahedra that share corners with two equivalent Rb(1)O6 octahedra, corners with four equivalent Pr(1)O6 octahedra, edges with three equivalent Rb(2)O6 octahedra, edges with four equivalent Pr(1)O6 octahedra, and edges with five equivalent Rb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 17-19°. Pr(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form PrO6 octahedra that share corners with two equivalent Rb(1)O6 octahedra, corners with four equivalent Rb(2)O6 octahedra, edges with three equivalent Pr(1)O6 octahedra, edges with four equivalent Rb(2)O6 octahedra, and edges with five equivalent Rb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 15-19°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), and two equivalent Pr(1) atoms. In the second O site, O(2) is bonded to two equivalent Rb(1), two equivalent Rb(2), and two equivalent Pr(1) atoms to form a mixture of distorted edge and corner-sharing ORb4Pr2 octahedra. The corner-sharing octahedral tilt angles range from 7-17°. is represented by the CIF card [CIF]
data_Rb2PrO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.781
_cell_length_b   12.193
_cell_length_c   6.799
_cell_angle_alpha   79.034
_cell_angle_beta   69.483
_cell_angle_gamma   31.483
_symmetry_Int_Tables_number   1
_cell_volume   505.272
_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
  Rb  Rb0  1  0.996  0.996  0.504  1.0
  Rb  Rb1  1  0.746  0.746  0.254  1.0
  Rb  Rb2  1  0.422  0.422  0.578  1.0
  Rb  Rb3  1  0.578  0.578  0.422  1.0
  Rb  Rb4  1  0.672  0.672  0.828  1.0
  Rb  Rb5  1  0.828  0.828  0.672  1.0
  Rb  Rb6  1  0.504  0.504  0.996  1.0
  Rb  Rb7  1  0.254  0.254  0.746  1.0
  Pr  Pr8  1  0.086  0.086  0.914  1.0
  Pr  Pr9  1  0.914  0.914  0.086  1.0
  Pr  Pr10  1  0.336  0.336  0.164  1.0
  Pr  Pr11  1  0.164  0.164  0.336  1.0
  O  O12  1  0.179  0.821  0.821  1.0
  O  O13  1  0.142  0.661  0.298  1.0
  O  O14  1  0.899  0.298  0.661  1.0
  O  O15  1  0.661  0.142  0.899  1.0
  O  O16  1  0.298  0.899  0.142  1.0
  O  O17  1  0.429  0.071  0.071  1.0
  O  O18  1  0.821  0.179  0.179  1.0
  O  O19  1  0.952  0.351  0.108  1.0
  O  O20  1  0.589  0.108  0.351  1.0
  O  O21  1  0.351  0.952  0.589  1.0
  O  O22  1  0.108  0.589  0.952  1.0
  O  O23  1  0.071  0.429  0.429  1.0
[/CIF]
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The structure described by Rb2PrO3 is High Pressure (4-7GPa) Tellurium-derived structured and crystallizes in the orthorhombic Fddd space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form distorted RbO6 octahedra that share corners with two equivalent Rb(1)O6 octahedra, corners with two equivalent Rb(2)O6 octahedra, corners with two equivalent Pr(1)O6 octahedra, edges with two equivalent Rb(1)O6 octahedra, edges with five equivalent Rb(2)O6 octahedra, and edges with five equivalent Pr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 15-23°. In the second Rb site, Rb(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form distorted RbO6 octahedra that share corners with two equivalent Rb(1)O6 octahedra, corners with four equivalent Pr(1)O6 octahedra, edges with three equivalent Rb(2)O6 octahedra, edges with four equivalent Pr(1)O6 octahedra, and edges with five equivalent Rb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 17-19°. Pr(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form PrO6 octahedra that share corners with two equivalent Rb(1)O6 octahedra, corners with four equivalent Rb(2)O6 octahedra, edges with three equivalent Pr(1)O6 octahedra, edges with four equivalent Rb(2)O6 octahedra, and edges with five equivalent Rb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 15-19°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), and two equivalent Pr(1) atoms. In the second O site, O(2) is bonded to two equivalent Rb(1), two equivalent Rb(2), and two equivalent Pr(1) atoms to form a mixture of distorted edge and corner-sharing ORb4Pr2 octahedra. The corner-sharing octahedral tilt angles range from 7-17°. is represented by the CIF card [CIF]
data_Rb2PrO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.781
_cell_length_b   12.193
_cell_length_c   6.799
_cell_angle_alpha   79.034
_cell_angle_beta   69.483
_cell_angle_gamma   31.483
_symmetry_Int_Tables_number   1
_cell_volume   505.272
_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
  Rb  Rb0  1  0.996  0.996  0.504  1.0
  Rb  Rb1  1  0.746  0.746  0.254  1.0
  Rb  Rb2  1  0.422  0.422  0.578  1.0
  Rb  Rb3  1  0.578  0.578  0.422  1.0
  Rb  Rb4  1  0.672  0.672  0.828  1.0
  Rb  Rb5  1  0.828  0.828  0.672  1.0
  Rb  Rb6  1  0.504  0.504  0.996  1.0
  Rb  Rb7  1  0.254  0.254  0.746  1.0
  Pr  Pr8  1  0.086  0.086  0.914  1.0
  Pr  Pr9  1  0.914  0.914  0.086  1.0
  Pr  Pr10  1  0.336  0.336  0.164  1.0
  Pr  Pr11  1  0.164  0.164  0.336  1.0
  O  O12  1  0.179  0.821  0.821  1.0
  O  O13  1  0.142  0.661  0.298  1.0
  O  O14  1  0.899  0.298  0.661  1.0
  O  O15  1  0.661  0.142  0.899  1.0
  O  O16  1  0.298  0.899  0.142  1.0
  O  O17  1  0.429  0.071  0.071  1.0
  O  O18  1  0.821  0.179  0.179  1.0
  O  O19  1  0.952  0.351  0.108  1.0
  O  O20  1  0.589  0.108  0.351  1.0
  O  O21  1  0.351  0.952  0.589  1.0
  O  O22  1  0.108  0.589  0.952  1.0
  O  O23  1  0.071  0.429  0.429  1.0
[/CIF]
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