data_Na2GeRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.8
_cell_length_b   2.8
_cell_length_c   9.62
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2GeRh
_chemical_formula_sum   'Na2 Ge1 Rh1'
_cell_volume   75.32
_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  0.4  0.4  0.5  1.0
  Na  Na2  1  0.4  0.4  0.12  1.0
  Ge  Ge0  1  0.0  0.0  0.0  1.0
  Rh  Rh3  1  0.0  0.0  0.81  1.0

data_Na2GeRh
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.96
_cell_length_b   3.96
_cell_length_c   9.62
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Na2GeRh
_chemical_formula_sum   'Na4 Ge2 Rh2'
_cell_volume   150.63
_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  0.4  0.0  0.12  1.0
  Na  Na1  2  0.4  0.0  0.5  1.0
  Ge  Ge2  2  0.0  0.0  0.0  1.0
  Rh  Rh3  2  0.0  0.0  0.81  1.0

Na Na Ge Rh
Na2RhGe crystallizes in the monoclinic Cm space group. There are two inequivalent Na sites. In the first Na site, Na(1) is bonded in a 8-coordinate geometry to one Na(2), four equivalent Na(1), and three equivalent Rh(1) atoms. The Na(1)-Na(2) bond length is 3.58 Å. All Na(1)-Na(1) bond lengths are 2.80 Å. There is one shorter (3.41 Å) and two longer (3.63 Å) Na(1)-Rh(1) bond lengths. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to one Na(1) and four equivalent Ge(1) atoms. There are a spread of Na(2)-Ge(1) bond distances ranging from 1.98-2.66 Å. Rh(1) is bonded in a single-bond geometry to three equivalent Na(1) and one Ge(1) atom. The Rh(1)-Ge(1) bond length is 1.83 Å. Ge(1) is bonded in a 5-coordinate geometry to four equivalent Na(2) and one Rh(1) atom.