data_Cu2PdRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.74
_cell_length_b   2.74
_cell_length_c   7.18
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu2PdRh
_chemical_formula_sum   'Cu2 Pd1 Rh1'
_cell_volume   53.95
_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
  Cu  Cu0  1  0.37  0.37  0.09  1.0
  Cu  Cu1  1  0.0  0.0  0.69  1.0
  Pd  Pd2  1  0.37  0.37  0.51  1.0
  Rh  Rh3  1  0.0  0.0  0.49  1.0

data_Cu2PdRh
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.88
_cell_length_b   3.88
_cell_length_c   7.18
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Cu2PdRh
_chemical_formula_sum   'Cu4 Pd2 Rh2'
_cell_volume   107.9
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Cu  Cu0  2  0.0  0.0  0.69  1.0
  Cu  Cu1  2  0.37  0.0  0.09  1.0
  Pd  Pd2  2  0.37  0.0  0.51  1.0
  Rh  Rh3  2  0.0  0.0  0.49  1.0

Cu Cu Pd Rh
Cu Cu Pd Rh 0 1 o o - 0 3 o o o 0 0 + o o 0 0 o + o 0 2 o o o 1 3 o o o 2 3 o o o 
RhPdCu2 crystallizes in the monoclinic Cm space group. Rh(1) is bonded in a 2-coordinate geometry to one Pd(1), one Cu(1), and one Cu(2) atom. The Rh(1)-Pd(1) bond length is 1.44 Å. The Rh(1)-Cu(1) bond length is 3.21 Å. The Rh(1)-Cu(2) bond length is 1.43 Å. Pd(1) is bonded in a 1-coordinate geometry to one Rh(1) and one Cu(1) atom. The Pd(1)-Cu(1) bond length is 3.01 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 7-coordinate geometry to one Rh(1), one Pd(1), one Cu(2), and four equivalent Cu(1) atoms. The Cu(1)-Cu(2) bond length is 3.22 Å. All Cu(1)-Cu(1) bond lengths are 2.74 Å. In the second Cu site, Cu(2) is bonded in a single-bond geometry to one Rh(1) and one Cu(1) atom.