data_NaCu2Ru
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.52
_cell_length_b   4.69
_cell_length_c   4.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaCu2Ru
_chemical_formula_sum   'Na1 Cu2 Ru1'
_cell_volume   58.06
_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
  Na  Na2  1  0.0  0.0  0.74  1.0
  Cu  Cu0  1  0.26  0.0  0.33  1.0
  Cu  Cu1  1  0.26  0.35  0.45  1.0
  Ru  Ru3  1  0.0  0.35  0.85  1.0

data_NaCu2Ru
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.52
_cell_length_b   4.69
_cell_length_c   4.92
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaCu2Ru
_chemical_formula_sum   'Na1 Cu2 Ru1'
_cell_volume   58.06
_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
  Na  Na0  1  0.0  0.0  0.74  1.0
  Cu  Cu1  1  0.26  0.0  0.33  1.0
  Cu  Cu2  1  0.26  0.35  0.45  1.0
  Ru  Ru3  1  0.0  0.35  0.85  1.0

Na Cu Cu Ru
NaRuCu2 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one NaRuCu2 cluster. Na(1) is bonded in a 1-coordinate geometry to one Ru(1), one Cu(1), and one Cu(2) atom. The Na(1)-Ru(1) bond length is 1.71 Å. The Na(1)-Cu(1) bond length is 2.15 Å. The Na(1)-Cu(2) bond length is 2.28 Å. Ru(1) is bonded in a distorted single-bond geometry to one Na(1) and one Cu(2) atom. The Ru(1)-Cu(2) bond length is 2.11 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 2-coordinate geometry to one Na(1) and one Cu(2) atom. The Cu(1)-Cu(2) bond length is 1.72 Å. In the second Cu site, Cu(2) is bonded in a 3-coordinate geometry to one Na(1), one Ru(1), and one Cu(1) atom.