data_NaCoRh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.7
_cell_length_b   2.7
_cell_length_c   8.25
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   NaCoRh2
_chemical_formula_sum   'Na1 Co1 Rh2'
_cell_volume   60.22
_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  0.0  0.0  0.0  1.0
  Co  Co0  1  0.0  0.0  0.12  1.0
  Rh  Rh2  1  0.35  0.35  0.46  1.0
  Rh  Rh3  1  0.35  0.35  0.79  1.0

data_NaCoRh2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.82
_cell_length_b   3.82
_cell_length_c   8.25
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   NaCoRh2
_chemical_formula_sum   'Na2 Co2 Rh4'
_cell_volume   120.44
_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
  Co  Co1  2  0.0  0.0  0.12  1.0
  Rh  Rh2  2  0.35  0.0  0.46  1.0
  Rh  Rh3  2  0.35  0.0  0.79  1.0

Na Co Rh Rh
Na Co Rh Rh 0 1 o o o 0 3 o o - 0 3 o - - 0 3 - o - 0 3 - - - 1 2 o o o 2 2 + o o 2 2 o + o 2 3 o o o 3 3 + o o 3 3 o + o 
NaRh2Co crystallizes in the monoclinic Cm space group. Na(1) is bonded in a distorted single-bond geometry to one Rh(2) and one Co(1) atom. The Na(1)-Rh(2) bond length is 2.19 Å. The Na(1)-Co(1) bond length is 1.02 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a 8-coordinate geometry to one Rh(2), four equivalent Rh(1), and three equivalent Co(1) atoms. The Rh(1)-Rh(2) bond length is 2.75 Å. All Rh(1)-Rh(1) bond lengths are 2.70 Å. There is one shorter (3.06 Å) and two longer (3.40 Å) Rh(1)-Co(1) bond lengths. In the second Rh site, Rh(2) is bonded in a 1-coordinate geometry to one Na(1) and one Rh(1) atom. Co(1) is bonded in a single-bond geometry to one Na(1) and three equivalent Rh(1) atoms.