The material described by Pr2Y is beta-derived structured and crystallizes in the trigonal R-3m space group. Pr(1) is bonded to nine equivalent Pr(1) and three equivalent Y(1) atoms to form PrPr9Y3 cuboctahedra that share corners with six equivalent Y(1)Pr6Y6 cuboctahedra, corners with nine equivalent Pr(1)Pr9Y3 cuboctahedra, edges with six equivalent Y(1)Pr6Y6 cuboctahedra, edges with fifteen equivalent Pr(1)Pr9Y3 cuboctahedra, faces with seven equivalent Y(1)Pr6Y6 cuboctahedra, and faces with twelve equivalent Pr(1)Pr9Y3 cuboctahedra. Y(1) is bonded to six equivalent Pr(1) and six equivalent Y(1) atoms to form YPr6Y6 cuboctahedra that share corners with six equivalent Y(1)Pr6Y6 cuboctahedra, corners with twelve equivalent Pr(1)Pr9Y3 cuboctahedra, edges with six equivalent Y(1)Pr6Y6 cuboctahedra, edges with twelve equivalent Pr(1)Pr9Y3 cuboctahedra, faces with six equivalent Y(1)Pr6Y6 cuboctahedra, and faces with fourteen equivalent Pr(1)Pr9Y3 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2Y
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.185
_cell_length_b   9.185
_cell_length_c   9.185
_cell_angle_alpha   23.300
_cell_angle_beta   23.300
_cell_angle_gamma   23.300
_symmetry_Int_Tables_number   1
_cell_volume   106.442
_cell_formula_units_Z   1
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  0.776  0.776  0.776  1.0
  Pr  Pr1  1  0.224  0.224  0.224  1.0
  Y  Y2  1  0.000  0.000  0.000  1.0
[/CIF]
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The material described by Pr2Y is beta-derived structured and crystallizes in the trigonal R-3m space group. Pr(1) is bonded to nine equivalent Pr(1) and three equivalent Y(1) atoms to form PrPr9Y3 cuboctahedra that share corners with six equivalent Y(1)Pr6Y6 cuboctahedra, corners with nine equivalent Pr(1)Pr9Y3 cuboctahedra, edges with six equivalent Y(1)Pr6Y6 cuboctahedra, edges with fifteen equivalent Pr(1)Pr9Y3 cuboctahedra, faces with seven equivalent Y(1)Pr6Y6 cuboctahedra, and faces with twelve equivalent Pr(1)Pr9Y3 cuboctahedra. Y(1) is bonded to six equivalent Pr(1) and six equivalent Y(1) atoms to form YPr6Y6 cuboctahedra that share corners with six equivalent Y(1)Pr6Y6 cuboctahedra, corners with twelve equivalent Pr(1)Pr9Y3 cuboctahedra, edges with six equivalent Y(1)Pr6Y6 cuboctahedra, edges with twelve equivalent Pr(1)Pr9Y3 cuboctahedra, faces with six equivalent Y(1)Pr6Y6 cuboctahedra, and faces with fourteen equivalent Pr(1)Pr9Y3 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pr2Y
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.185
_cell_length_b   9.185
_cell_length_c   9.185
_cell_angle_alpha   23.300
_cell_angle_beta   23.300
_cell_angle_gamma   23.300
_symmetry_Int_Tables_number   1
_cell_volume   106.442
_cell_formula_units_Z   1
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  0.776  0.776  0.776  1.0
  Pr  Pr1  1  0.224  0.224  0.224  1.0
  Y  Y2  1  0.000  0.000  0.000  1.0
[/CIF]
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