The material described by Rh3Pt is Copper-derived structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to four equivalent Rh(1), four equivalent Rh(2), and four equivalent Pt(1) atoms to form RhPt4Rh8 cuboctahedra that share corners with twelve equivalent Rh(1)Pt4Rh8 cuboctahedra, edges with eight equivalent Rh(1)Pt4Rh8 cuboctahedra, edges with eight equivalent Rh(2)Pt4Rh8 cuboctahedra, edges with eight equivalent Pt(1)Rh12 cuboctahedra, faces with four equivalent Rh(2)Pt4Rh8 cuboctahedra, faces with four equivalent Pt(1)Rh12 cuboctahedra, and faces with ten equivalent Rh(1)Pt4Rh8 cuboctahedra. In the second Rh site, Rh(2) is bonded to eight equivalent Rh(1) and four equivalent Pt(1) atoms to form RhPt4Rh8 cuboctahedra that share corners with four equivalent Rh(2)Pt4Rh8 cuboctahedra, corners with eight equivalent Pt(1)Rh12 cuboctahedra, edges with eight equivalent Rh(2)Pt4Rh8 cuboctahedra, edges with sixteen equivalent Rh(1)Pt4Rh8 cuboctahedra, faces with four equivalent Rh(2)Pt4Rh8 cuboctahedra, faces with six equivalent Pt(1)Rh12 cuboctahedra, and faces with eight equivalent Rh(1)Pt4Rh8 cuboctahedra. Pt(1) is bonded to four equivalent Rh(2) and eight equivalent Rh(1) atoms to form PtRh12 cuboctahedra that share corners with four equivalent Pt(1)Rh12 cuboctahedra, corners with eight equivalent Rh(2)Pt4Rh8 cuboctahedra, edges with eight equivalent Pt(1)Rh12 cuboctahedra, edges with sixteen equivalent Rh(1)Pt4Rh8 cuboctahedra, faces with four equivalent Pt(1)Rh12 cuboctahedra, faces with six equivalent Rh(2)Pt4Rh8 cuboctahedra, and faces with eight equivalent Rh(1)Pt4Rh8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_PtRh3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.706
_cell_length_b   4.706
_cell_length_c   4.706
_cell_angle_alpha   131.867
_cell_angle_beta   131.867
_cell_angle_gamma   70.440
_symmetry_Int_Tables_number   1
_cell_volume   56.642
_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  0.000  0.000  0.000  1.0
  Rh  Rh1  1  0.750  0.250  0.500  1.0
  Rh  Rh2  1  0.250  0.750  0.500  1.0
  Rh  Rh3  1  0.500  0.500  0.000  1.0
[/CIF]
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The material described by Rh3Pt is Copper-derived structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded to four equivalent Rh(1), four equivalent Rh(2), and four equivalent Pt(1) atoms to form RhPt4Rh8 cuboctahedra that share corners with twelve equivalent Rh(1)Pt4Rh8 cuboctahedra, edges with eight equivalent Rh(1)Pt4Rh8 cuboctahedra, edges with eight equivalent Rh(2)Pt4Rh8 cuboctahedra, edges with eight equivalent Pt(1)Rh12 cuboctahedra, faces with four equivalent Rh(2)Pt4Rh8 cuboctahedra, faces with four equivalent Pt(1)Rh12 cuboctahedra, and faces with ten equivalent Rh(1)Pt4Rh8 cuboctahedra. In the second Rh site, Rh(2) is bonded to eight equivalent Rh(1) and four equivalent Pt(1) atoms to form RhPt4Rh8 cuboctahedra that share corners with four equivalent Rh(2)Pt4Rh8 cuboctahedra, corners with eight equivalent Pt(1)Rh12 cuboctahedra, edges with eight equivalent Rh(2)Pt4Rh8 cuboctahedra, edges with sixteen equivalent Rh(1)Pt4Rh8 cuboctahedra, faces with four equivalent Rh(2)Pt4Rh8 cuboctahedra, faces with six equivalent Pt(1)Rh12 cuboctahedra, and faces with eight equivalent Rh(1)Pt4Rh8 cuboctahedra. Pt(1) is bonded to four equivalent Rh(2) and eight equivalent Rh(1) atoms to form PtRh12 cuboctahedra that share corners with four equivalent Pt(1)Rh12 cuboctahedra, corners with eight equivalent Rh(2)Pt4Rh8 cuboctahedra, edges with eight equivalent Pt(1)Rh12 cuboctahedra, edges with sixteen equivalent Rh(1)Pt4Rh8 cuboctahedra, faces with four equivalent Pt(1)Rh12 cuboctahedra, faces with six equivalent Rh(2)Pt4Rh8 cuboctahedra, and faces with eight equivalent Rh(1)Pt4Rh8 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_PtRh3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.706
_cell_length_b   4.706
_cell_length_c   4.706
_cell_angle_alpha   131.867
_cell_angle_beta   131.867
_cell_angle_gamma   70.440
_symmetry_Int_Tables_number   1
_cell_volume   56.642
_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  0.000  0.000  0.000  1.0
  Rh  Rh1  1  0.750  0.250  0.500  1.0
  Rh  Rh2  1  0.250  0.750  0.500  1.0
  Rh  Rh3  1  0.500  0.500  0.000  1.0
[/CIF]
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