data_NiAg2Ru
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.76
_cell_length_b   3.76
_cell_length_c   4.34
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NiAg2Ru
_chemical_formula_sum   'Ni1 Ag2 Ru1'
_cell_volume   61.48
_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
  Ni  Ni2  1  0.0  0.0  0.0  1.0
  Ag  Ag0  1  0.88  0.0  0.17  1.0
  Ag  Ag1  1  0.0  0.88  0.17  1.0
  Ru  Ru3  1  0.88  0.88  0.0  1.0

data_NiAg2Ru
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.32
_cell_length_b   5.32
_cell_length_c   4.34
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NiAg2Ru
_chemical_formula_sum   'Ni2 Ag4 Ru2'
_cell_volume   122.95
_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
  Ni  Ni0  2  0.0  0.0  0.0  1.0
  Ag  Ag1  4  0.44  0.44  0.17  1.0
  Ru  Ru2  2  0.38  0.5  0.0  1.0

Ni Ag Ag Ru
Ni Ag Ag Ru 0 3 - - o 1 2 + - o 
RuNiAg2 is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two RuNiAg2 clusters. Ru(1) is bonded in a 3-coordinate geometry to one Ni(1) and two equivalent Ag(1) atoms. The Ru(1)-Ni(1) bond length is 0.63 Å. Both Ru(1)-Ag(1) bond lengths are 0.86 Å. Ni(1) is bonded in a distorted single-bond geometry to one Ru(1) and two equivalent Ag(1) atoms. Both Ni(1)-Ag(1) bond lengths are 0.86 Å. Ag(1) is bonded in a 3-coordinate geometry to one Ru(1), one Ni(1), and one Ag(1) atom. The Ag(1)-Ag(1) bond length is 0.63 Å.