The compound described by Pt3Rh is Copper-derived structured and crystallizes in the tetragonal I4/mmm space group. Rh(1) is bonded to four equivalent Pt(2) and eight equivalent Pt(1) atoms to form RhPt12 cuboctahedra that share corners with four equivalent Rh(1)Pt12 cuboctahedra, corners with eight equivalent Pt(2)Pt8Rh4 cuboctahedra, edges with eight equivalent Rh(1)Pt12 cuboctahedra, edges with sixteen equivalent Pt(1)Pt8Rh4 cuboctahedra, faces with four equivalent Rh(1)Pt12 cuboctahedra, faces with six equivalent Pt(2)Pt8Rh4 cuboctahedra, and faces with eight equivalent Pt(1)Pt8Rh4 cuboctahedra. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to four equivalent Rh(1), four equivalent Pt(1), and four equivalent Pt(2) atoms to form PtPt8Rh4 cuboctahedra that share corners with twelve equivalent Pt(1)Pt8Rh4 cuboctahedra, edges with eight equivalent Rh(1)Pt12 cuboctahedra, edges with eight equivalent Pt(1)Pt8Rh4 cuboctahedra, edges with eight equivalent Pt(2)Pt8Rh4 cuboctahedra, faces with four equivalent Rh(1)Pt12 cuboctahedra, faces with four equivalent Pt(2)Pt8Rh4 cuboctahedra, and faces with ten equivalent Pt(1)Pt8Rh4 cuboctahedra. In the second Pt site, Pt(2) is bonded to four equivalent Rh(1) and eight equivalent Pt(1) atoms to form PtPt8Rh4 cuboctahedra that share corners with four equivalent Pt(2)Pt8Rh4 cuboctahedra, corners with eight equivalent Rh(1)Pt12 cuboctahedra, edges with eight equivalent Pt(2)Pt8Rh4 cuboctahedra, edges with sixteen equivalent Pt(1)Pt8Rh4 cuboctahedra, faces with four equivalent Pt(2)Pt8Rh4 cuboctahedra, faces with six equivalent Rh(1)Pt12 cuboctahedra, and faces with eight equivalent Pt(1)Pt8Rh4 cuboctahedra. is represented by the CIF card [CIF]
data_Pt3Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.805
_cell_length_b   4.805
_cell_length_c   4.805
_cell_angle_alpha   131.954
_cell_angle_beta   131.954
_cell_angle_gamma   70.302
_symmetry_Int_Tables_number   1
_cell_volume   60.120
_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
  Pt  Pt0  1  0.750  0.250  0.500  1.0
  Pt  Pt1  1  0.250  0.750  0.500  1.0
  Pt  Pt2  1  0.500  0.500  0.000  1.0
  Rh  Rh3  1  0.000  0.000  0.000  1.0
[/CIF]
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The compound described by Pt3Rh is Copper-derived structured and crystallizes in the tetragonal I4/mmm space group. Rh(1) is bonded to four equivalent Pt(2) and eight equivalent Pt(1) atoms to form RhPt12 cuboctahedra that share corners with four equivalent Rh(1)Pt12 cuboctahedra, corners with eight equivalent Pt(2)Pt8Rh4 cuboctahedra, edges with eight equivalent Rh(1)Pt12 cuboctahedra, edges with sixteen equivalent Pt(1)Pt8Rh4 cuboctahedra, faces with four equivalent Rh(1)Pt12 cuboctahedra, faces with six equivalent Pt(2)Pt8Rh4 cuboctahedra, and faces with eight equivalent Pt(1)Pt8Rh4 cuboctahedra. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded to four equivalent Rh(1), four equivalent Pt(1), and four equivalent Pt(2) atoms to form PtPt8Rh4 cuboctahedra that share corners with twelve equivalent Pt(1)Pt8Rh4 cuboctahedra, edges with eight equivalent Rh(1)Pt12 cuboctahedra, edges with eight equivalent Pt(1)Pt8Rh4 cuboctahedra, edges with eight equivalent Pt(2)Pt8Rh4 cuboctahedra, faces with four equivalent Rh(1)Pt12 cuboctahedra, faces with four equivalent Pt(2)Pt8Rh4 cuboctahedra, and faces with ten equivalent Pt(1)Pt8Rh4 cuboctahedra. In the second Pt site, Pt(2) is bonded to four equivalent Rh(1) and eight equivalent Pt(1) atoms to form PtPt8Rh4 cuboctahedra that share corners with four equivalent Pt(2)Pt8Rh4 cuboctahedra, corners with eight equivalent Rh(1)Pt12 cuboctahedra, edges with eight equivalent Pt(2)Pt8Rh4 cuboctahedra, edges with sixteen equivalent Pt(1)Pt8Rh4 cuboctahedra, faces with four equivalent Pt(2)Pt8Rh4 cuboctahedra, faces with six equivalent Rh(1)Pt12 cuboctahedra, and faces with eight equivalent Pt(1)Pt8Rh4 cuboctahedra. is represented by the CIF card [CIF]
data_Pt3Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.805
_cell_length_b   4.805
_cell_length_c   4.805
_cell_angle_alpha   131.954
_cell_angle_beta   131.954
_cell_angle_gamma   70.302
_symmetry_Int_Tables_number   1
_cell_volume   60.120
_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
  Pt  Pt0  1  0.750  0.250  0.500  1.0
  Pt  Pt1  1  0.250  0.750  0.500  1.0
  Pt  Pt2  1  0.500  0.500  0.000  1.0
  Rh  Rh3  1  0.000  0.000  0.000  1.0
[/CIF]
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