The crystal structure described by Pd3Rh is alpha La-derived structured and crystallizes in the tetragonal I4/mmm space group. Rh(1) is bonded to four equivalent Pd(2) and eight equivalent Pd(1) atoms to form RhPd12 cuboctahedra that share corners with four equivalent Rh(1)Pd12 cuboctahedra, corners with eight equivalent Pd(2)Pd8Rh4 cuboctahedra, edges with eight equivalent Rh(1)Pd12 cuboctahedra, edges with sixteen equivalent Pd(1)Pd8Rh4 cuboctahedra, faces with four equivalent Rh(1)Pd12 cuboctahedra, faces with six equivalent Pd(2)Pd8Rh4 cuboctahedra, and faces with eight equivalent Pd(1)Pd8Rh4 cuboctahedra. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded to four equivalent Rh(1), four equivalent Pd(1), and four equivalent Pd(2) atoms to form PdPd8Rh4 cuboctahedra that share corners with twelve equivalent Pd(1)Pd8Rh4 cuboctahedra, edges with eight equivalent Rh(1)Pd12 cuboctahedra, edges with eight equivalent Pd(1)Pd8Rh4 cuboctahedra, edges with eight equivalent Pd(2)Pd8Rh4 cuboctahedra, faces with four equivalent Rh(1)Pd12 cuboctahedra, faces with four equivalent Pd(2)Pd8Rh4 cuboctahedra, and faces with ten equivalent Pd(1)Pd8Rh4 cuboctahedra. In the second Pd site, Pd(2) is bonded to four equivalent Rh(1) and eight equivalent Pd(1) atoms to form PdPd8Rh4 cuboctahedra that share corners with four equivalent Pd(2)Pd8Rh4 cuboctahedra, corners with eight equivalent Rh(1)Pd12 cuboctahedra, edges with eight equivalent Pd(2)Pd8Rh4 cuboctahedra, edges with sixteen equivalent Pd(1)Pd8Rh4 cuboctahedra, faces with four equivalent Pd(2)Pd8Rh4 cuboctahedra, faces with six equivalent Rh(1)Pd12 cuboctahedra, and faces with eight equivalent Pd(1)Pd8Rh4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pd3Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.800
_cell_length_b   4.800
_cell_length_c   4.800
_cell_angle_alpha   132.339
_cell_angle_beta   132.339
_cell_angle_gamma   69.694
_symmetry_Int_Tables_number   1
_cell_volume   59.273
_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
  Pd  Pd0  1  0.750  0.250  0.500  1.0
  Pd  Pd1  1  0.250  0.750  0.500  1.0
  Pd  Pd2  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 crystal structure described by Pd3Rh is alpha La-derived structured and crystallizes in the tetragonal I4/mmm space group. Rh(1) is bonded to four equivalent Pd(2) and eight equivalent Pd(1) atoms to form RhPd12 cuboctahedra that share corners with four equivalent Rh(1)Pd12 cuboctahedra, corners with eight equivalent Pd(2)Pd8Rh4 cuboctahedra, edges with eight equivalent Rh(1)Pd12 cuboctahedra, edges with sixteen equivalent Pd(1)Pd8Rh4 cuboctahedra, faces with four equivalent Rh(1)Pd12 cuboctahedra, faces with six equivalent Pd(2)Pd8Rh4 cuboctahedra, and faces with eight equivalent Pd(1)Pd8Rh4 cuboctahedra. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded to four equivalent Rh(1), four equivalent Pd(1), and four equivalent Pd(2) atoms to form PdPd8Rh4 cuboctahedra that share corners with twelve equivalent Pd(1)Pd8Rh4 cuboctahedra, edges with eight equivalent Rh(1)Pd12 cuboctahedra, edges with eight equivalent Pd(1)Pd8Rh4 cuboctahedra, edges with eight equivalent Pd(2)Pd8Rh4 cuboctahedra, faces with four equivalent Rh(1)Pd12 cuboctahedra, faces with four equivalent Pd(2)Pd8Rh4 cuboctahedra, and faces with ten equivalent Pd(1)Pd8Rh4 cuboctahedra. In the second Pd site, Pd(2) is bonded to four equivalent Rh(1) and eight equivalent Pd(1) atoms to form PdPd8Rh4 cuboctahedra that share corners with four equivalent Pd(2)Pd8Rh4 cuboctahedra, corners with eight equivalent Rh(1)Pd12 cuboctahedra, edges with eight equivalent Pd(2)Pd8Rh4 cuboctahedra, edges with sixteen equivalent Pd(1)Pd8Rh4 cuboctahedra, faces with four equivalent Pd(2)Pd8Rh4 cuboctahedra, faces with six equivalent Rh(1)Pd12 cuboctahedra, and faces with eight equivalent Pd(1)Pd8Rh4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Pd3Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.800
_cell_length_b   4.800
_cell_length_c   4.800
_cell_angle_alpha   132.339
_cell_angle_beta   132.339
_cell_angle_gamma   69.694
_symmetry_Int_Tables_number   1
_cell_volume   59.273
_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
  Pd  Pd0  1  0.750  0.250  0.500  1.0
  Pd  Pd1  1  0.250  0.750  0.500  1.0
  Pd  Pd2  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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