data_Na2BeRu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.08
_cell_length_b   4.08
_cell_length_c   7.47
_cell_angle_alpha   93.15
_cell_angle_beta   93.15
_cell_angle_gamma   37.64
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2BeRu
_chemical_formula_sum   'Na2 Be1 Ru1'
_cell_volume   75.77
_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  Na1  1  0.09  0.0  0.44  1.0
  Na  Na2  1  0.56  0.0  0.18  1.0
  Be  Be0  1  0.7  0.0  0.45  1.0
  Ru  Ru3  1  0.59  0.0  0.12  1.0

data_Na2BeRu
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.63
_cell_length_b   4.08
_cell_length_c   7.47
_cell_angle_alpha   93.15
_cell_angle_beta   90.0
_cell_angle_gamma   108.82
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2BeRu
_chemical_formula_sum   'Na2 Be1 Ru1'
_cell_volume   75.77
_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  0.44  0.82  1.0
  Na  Na1  1  0.0  0.91  0.56  1.0
  Be  Be2  1  0.0  0.3  0.55  1.0
  Ru  Ru3  1  0.0  0.41  0.88  1.0

Na Na Be Ru
Na2BeRu crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Na2BeRu cluster. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a distorted single-bond geometry to one Be(1) atom. The Na(1)-Be(1) bond length is 1.59 Å. In the second Na site, Na(2) is bonded in a single-bond geometry to one Be(1) and one Ru(1) atom. The Na(2)-Be(1) bond length is 2.06 Å. The Na(2)-Ru(1) bond length is 0.48 Å. Be(1) is bonded in a 2-coordinate geometry to one Na(1) and one Na(2) atom. Ru(1) is bonded in a single-bond geometry to one Na(2) atom.