data_AlSnRh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.5
_cell_length_b   5.5
_cell_length_c   5.5
_cell_angle_alpha   146.82
_cell_angle_beta   134.46
_cell_angle_gamma   57.49
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlSnRh2
_chemical_formula_sum   'Al1 Sn1 Rh2'
_cell_volume   64.35
_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
  Al  Al0  1  0.0  0.0  0.41  1.0
  Sn  Sn3  1  0.57  0.0  0.81  1.0
  Rh  Rh1  1  0.0  0.13  0.62  1.0
  Rh  Rh2  1  0.0  0.0  0.44  1.0

data_AlSnRh2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.14
_cell_length_b   4.25
_cell_length_c   5.5
_cell_angle_alpha   112.77
_cell_angle_beta   106.59
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlSnRh2
_chemical_formula_sum   'Al1 Sn1 Rh2'
_cell_volume   64.35
_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
  Al  Al0  1  0.0  0.41  0.41  1.0
  Sn  Sn1  1  0.0  0.81  0.24  1.0
  Rh  Rh2  1  0.0  0.44  0.44  1.0
  Rh  Rh3  1  0.87  0.49  0.49  1.0

Al Sn Rh Rh
Al Sn Rh Rh 0 3 o o o 0 1 o o o 0 1 - o - 0 2 o o o 1 3 o o o 1 3 + o + 1 2 o o o 2 3 o o o 
Rh2AlSn crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one Rh2AlSn cluster. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a distorted single-bond geometry to one Rh(2) atom. The Rh(1)-Rh(2) bond length is 0.56 Å. In the second Rh site, Rh(2) is bonded in a single-bond geometry to one Rh(1) and one Al(1) atom. The Rh(2)-Al(1) bond length is 0.13 Å. Al(1) is bonded in a single-bond geometry to one Rh(2) and one Sn(1) atom. The Al(1)-Sn(1) bond length is 2.35 Å. Sn(1) is bonded in a 1-coordinate geometry to one Al(1) atom.