data_Cu2NiRu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.41
_cell_length_b   4.41
_cell_length_c   4.41
_cell_angle_alpha   129.84
_cell_angle_beta   129.84
_cell_angle_gamma   73.66
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu2NiRu
_chemical_formula_sum   'Cu2 Ni1 Ru1'
_cell_volume   49.36
_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  0.0  0.0  0.53  1.0
  Cu  Cu1  1  0.0  0.87  0.77  1.0
  Ni  Ni2  1  0.0  0.0  0.0  1.0
  Ru  Ru3  1  0.87  0.0  0.77  1.0

data_Cu2NiRu
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.74
_cell_length_b   3.74
_cell_length_c   4.41
_cell_angle_alpha   115.08
_cell_angle_beta   115.08
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cu2NiRu
_chemical_formula_sum   'Cu2 Ni1 Ru1'
_cell_volume   49.36
_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  0.53  0.53  0.53  1.0
  Cu  Cu1  1  0.9  0.77  0.9  1.0
  Ni  Ni2  1  0.0  0.0  0.0  1.0
  Ru  Ru3  1  0.77  0.9  0.9  1.0

Cu Cu Ni Ru
Cu Cu Ni Ru 0 3 - o o 0 1 o - o 1 2 o + + 1 3 - + o 2 3 - o - 
RuNiCu2 is Copper structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one RuNiCu2 cluster. Ru(1) is bonded in a 2-coordinate geometry to one Ni(1), one Cu(1), and one Cu(2) atom. The Ru(1)-Ni(1) bond length is 0.80 Å. The Ru(1)-Cu(1) bond length is 1.47 Å. The Ru(1)-Cu(2) bond length is 0.69 Å. Ni(1) is bonded in a 2-coordinate geometry to one Ru(1) and one Cu(2) atom. The Ni(1)-Cu(2) bond length is 0.80 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 1-coordinate geometry to one Ru(1) atom. In the second Cu site, Cu(2) is bonded in a distorted single-bond geometry to one Ru(1) and one Ni(1) atom.