data_NaTc2Ru
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.02
_cell_length_b   10.02
_cell_length_c   10.02
_cell_angle_alpha   15.74
_cell_angle_beta   15.74
_cell_angle_gamma   15.74
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaTc2Ru
_chemical_formula_sum   'Na1 Tc2 Ru1'
_cell_volume   64.52
_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  0.0  1.0
  Tc  Tc2  1  0.0  0.0  0.11  1.0
  Tc  Tc3  1  0.0  0.0  0.58  1.0
  Ru  Ru1  1  0.0  0.0  0.84  1.0

data_NaTc2Ru
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.75
_cell_length_b   2.74
_cell_length_c   10.02
_cell_angle_alpha   90.0
_cell_angle_beta   99.09
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaTc2Ru
_chemical_formula_sum   'Na2 Tc4 Ru2'
_cell_volume   129.05
_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
  Na  Na0  2  0.0  0.0  0.0  1.0
  Tc  Tc1  2  -0.0  0.0  0.89  1.0
  Tc  Tc2  2  -0.0  0.0  0.42  1.0
  Ru  Ru3  2  -0.0  0.0  0.16  1.0

Na Tc Tc Ru
Na Tc Tc Ru 0 1 o o o 0 3 o o - 2 2 o + - 2 2 + - o 2 2 + o - 2 3 o o o 
NaTc2Ru crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two NaTc2Ru clusters. Na(1) is bonded in a linear geometry to one Tc(1) and one Ru(1) atom. The Na(1)-Tc(1) bond length is 1.07 Å. The Na(1)-Ru(1) bond length is 1.56 Å. There are two inequivalent Tc sites. In the first Tc site, Tc(1) is bonded in a single-bond geometry to one Na(1) atom. In the second Tc site, Tc(2) is bonded in a distorted single-bond geometry to one Ru(1) atom. The Tc(2)-Ru(1) bond length is 2.64 Å. Ru(1) is bonded in a single-bond geometry to one Na(1) and one Tc(2) atom.