data_As2PtRh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.27
_cell_length_b   5.27
_cell_length_c   5.27
_cell_angle_alpha   147.41
_cell_angle_beta   122.65
_cell_angle_gamma   67.54
_symmetry_Int_Tables_number   1
_chemical_formula_structural   As2PtRh
_chemical_formula_sum   'As2 Pt1 Rh1'
_cell_volume   65.36
_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
  As  As0  1  0.0  0.53  0.25  1.0
  As  As1  1  0.48  0.0  0.13  1.0
  Pt  Pt2  1  0.0  0.0  0.38  1.0
  Rh  Rh3  1  0.0  0.0  0.0  1.0

data_As2PtRh
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.96
_cell_length_b   5.05
_cell_length_c   5.27
_cell_angle_alpha   118.68
_cell_angle_beta   106.3
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   As2PtRh
_chemical_formula_sum   'As2 Pt1 Rh1'
_cell_volume   65.36
_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
  As  As0  1  0.0  0.13  0.65  1.0
  As  As1  1  0.47  0.72  0.72  1.0
  Rh  Rh2  1  0.0  0.0  0.0  1.0
  Pt  Pt3  1  0.0  0.38  0.38  1.0

As As Pt Rh
RhPtAs2 crystallizes in the triclinic P1 space group. Rh(1) is bonded in a distorted rectangular see-saw-like geometry to one Pt(1), one As(2), and two equivalent As(1) atoms. The Rh(1)-Pt(1) bond length is 1.99 Å. The Rh(1)-As(2) bond length is 2.22 Å. There is one shorter (1.82 Å) and one longer (2.30 Å) Rh(1)-As(1) bond length. Pt(1) is bonded in a 4-coordinate geometry to one Rh(1), one As(2), and two equivalent As(1) atoms. The Pt(1)-As(2) bond length is 2.32 Å. There is one shorter (1.95 Å) and one longer (2.69 Å) Pt(1)-As(1) bond length. There are two inequivalent As sites. In the first As site, As(1) is bonded in a 2-coordinate geometry to two equivalent Rh(1) and two equivalent Pt(1) atoms. In the second As site, As(2) is bonded in a distorted linear geometry to one Rh(1) and one Pt(1) atom.