data_Na3Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.42
_cell_length_b   5.42
_cell_length_c   5.85
_cell_angle_alpha   95.76
_cell_angle_beta   95.76
_cell_angle_gamma   30.95
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na3Rh
_chemical_formula_sum   'Na3 Rh1'
_cell_volume   88.0
_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
  Na  Na1  1  0.02  0.0  0.18  1.0
  Na  Na2  1  0.82  0.0  0.64  1.0
  Rh  Rh3  1  0.92  0.0  0.91  1.0

data_Na3Rh
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.89
_cell_length_b   5.42
_cell_length_c   5.85
_cell_angle_alpha   95.76
_cell_angle_beta   90.0
_cell_angle_gamma   105.48
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na3Rh
_chemical_formula_sum   'Na3 Rh1'
_cell_volume   88.0
_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
  Na  Na1  1  0.0  0.18  0.36  1.0
  Na  Na2  1  0.0  0.98  0.82  1.0
  Rh  Rh3  1  0.0  0.08  0.09  1.0

Na Na Na Rh
Na3Rh crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Na3Rh cluster. There are three inequivalent Na sites. In the first Na site, Na(1) is bonded in a single-bond geometry to one Na(2) and one Rh(1) atom. The Na(1)-Na(2) bond length is 1.03 Å. The Na(1)-Rh(1) bond length is 0.65 Å. In the second Na site, Na(2) is bonded in a single-bond geometry to one Na(1) atom. In the third Na site, Na(3) is bonded in a single-bond geometry to one Rh(1) atom. The Na(3)-Rh(1) bond length is 1.62 Å. Rh(1) is bonded in a distorted single-bond geometry to one Na(1) and one Na(3) atom.