data_RuRhSe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.48
_cell_length_b   5.48
_cell_length_c   5.48
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   RuRhSe4
_chemical_formula_sum   'Ru1 Rh1 Se4'
_cell_volume   116.44
_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
  Ru  Ru1  1  0.0  0.0  0.0  1.0
  Rh  Rh0  1  0.81  0.81  0.81  1.0
  Se  Se2  1  0.84  0.84  0.91  1.0
  Se  Se3  1  0.84  0.91  0.84  1.0
  Se  Se4  1  0.91  0.84  0.84  1.0
  Se  Se5  1  0.91  0.91  0.91  1.0

data_RuRhSe4
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.48
_cell_length_b   5.48
_cell_length_c   13.43
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   RuRhSe4
_chemical_formula_sum   'Ru3 Rh3 Se12'
_cell_volume   349.31
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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
  Ru  Ru0  3  0.0  0.0  0.0  1.0
  Rh  Rh1  3  0.0  0.0  0.19  1.0
  Se  Se2  9  0.02  0.05  0.14  1.0
  Se  Se3  3  0.0  0.0  0.09  1.0

Ru Rh Se Se Se Se
RuSeRhSe3 is Zincblende, Sphalerite structured and crystallizes in the trigonal R3m space group. The structure is zero-dimensional and consists of three RhSe3 clusters and three RuSe clusters. In each RhSe3 cluster, Rh(1) is bonded in a 3-coordinate geometry to three equivalent Se(1) atoms. All Rh(1)-Se(1) bond lengths are 0.72 Å. Se(1) is bonded in a 2-coordinate geometry to one Rh(1) and two equivalent Se(1) atoms. Both Se(1)-Se(1) bond lengths are 0.37 Å. In each RuSe cluster, Ru(1) is bonded in a single-bond geometry to one Se(2) atom. The Ru(1)-Se(2) bond length is 1.21 Å. Se(2) is bonded in a distorted single-bond geometry to one Ru(1) atom.