data_Na2TlRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.07
_cell_length_b   4.07
_cell_length_c   5.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Na2TlRh
_chemical_formula_sum   'Na2 Tl1 Rh1'
_cell_volume   82.79
_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  0.04  0.0  0.5  1.0
  Na  Na1  1  0.0  0.04  0.5  1.0
  Tl  Tl3  1  0.04  0.04  0.0  1.0
  Rh  Rh2  1  0.0  0.0  0.0  1.0

data_Na2TlRh
_symmetry_space_group_name_H-M   Amm2
_cell_length_a   5.0
_cell_length_b   5.76
_cell_length_c   5.76
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   38
_chemical_formula_structural   Na2TlRh
_chemical_formula_sum   'Na4 Tl2 Rh2'
_cell_volume   165.57
_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, y, z'
  4  'x, -y, z'
  5  'x, y+1/2, z+1/2'
  6  '-x, -y+1/2, z+1/2'
  7  '-x, y+1/2, z+1/2'
  8  'x, -y+1/2, z+1/2'
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  4  0.5  0.02  0.02  1.0
  Tl  Tl1  2  0.0  0.0  0.04  1.0
  Rh  Rh2  2  0.0  0.0  0.0  1.0

Na Na Tl Rh
(Na)2RhTl is beta oxygen-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two Na clusters and two RhTl clusters. In each Na cluster, Na(1) is bonded in a single-bond geometry to one Na(1) atom. The Na(1)-Na(1) bond length is 0.20 Å. In each RhTl cluster, Rh(1) is bonded in a single-bond geometry to one Tl(1) atom. The Rh(1)-Tl(1) bond length is 0.20 Å. Tl(1) is bonded in a single-bond geometry to one Rh(1) atom.