data_PdRhSe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.56
_cell_length_b   4.56
_cell_length_c   3.14
_cell_angle_alpha   91.57
_cell_angle_beta   91.57
_cell_angle_gamma   92.15
_symmetry_Int_Tables_number   1
_chemical_formula_structural   PdRhSe2
_chemical_formula_sum   'Pd1 Rh1 Se2'
_cell_volume   65.14
_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
  Pd  Pd0  1  0.16  0.0  0.0  1.0
  Rh  Rh1  1  0.0  0.0  0.0  1.0
  Se  Se2  1  0.52  0.64  0.57  1.0
  Se  Se3  1  0.52  0.36  0.57  1.0

data_PdRhSe2
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.14
_cell_length_b   4.56
_cell_length_c   4.56
_cell_angle_alpha   90.0
_cell_angle_beta   91.57
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   PdRhSe2
_chemical_formula_sum   'Pd1 Rh1 Se2'
_cell_volume   65.22
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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
  Pd  Pd0  1  -0.0  0.0  0.16  1.0
  Rh  Rh1  1  0.0  0.0  0.0  1.0
  Se  Se2  2  0.57  0.36  0.52  1.0

Pd Rh Se Se
Pd Rh Se Se 0 1 o o o 2 3 o o o 
RhPdSe2 crystallizes in the monoclinic Pm space group. Rh(1) is bonded in a single-bond geometry to one Pd(1) and two equivalent Se(1) atoms. The Rh(1)-Pd(1) bond length is 0.74 Å. Both Rh(1)-Se(1) bond lengths are 3.02 Å. Pd(1) is bonded in a distorted single-bond geometry to one Rh(1) and four equivalent Se(1) atoms. There are two shorter (2.70 Å) and two longer (2.89 Å) Pd(1)-Se(1) bond lengths. Se(1) is bonded in a 4-coordinate geometry to one Rh(1), two equivalent Pd(1), and one Se(1) atom. The Se(1)-Se(1) bond length is 1.29 Å.