data_CoSiRu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.96
_cell_length_b   3.96
_cell_length_c   3.96
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CoSiRu
_chemical_formula_sum   'Co1 Si1 Ru1'
_cell_volume   43.87
_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
  Co  Co0  1  0.8  0.8  0.8  1.0
  Si  Si2  1  0.0  0.0  0.0  1.0
  Ru  Ru1  1  0.4  0.4  0.4  1.0

data_CoSiRu
_symmetry_space_group_name_H-M   R3m
_cell_length_a   3.96
_cell_length_b   3.96
_cell_length_c   9.7
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   CoSiRu
_chemical_formula_sum   'Co3 Si3 Ru3'
_cell_volume   131.61
_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
  Co  Co0  3  0.0  0.0  0.2  1.0
  Si  Si1  3  0.0  0.0  -0.0  1.0
  Ru  Ru2  3  0.0  0.0  0.6  1.0

Co Si Ru
RuCoSi crystallizes in the trigonal R3m space group. Ru(1) is bonded in a distorted hexagonal planar geometry to three equivalent Co(1) and three equivalent Si(1) atoms. All Ru(1)-Co(1) bond lengths are 2.37 Å. All Ru(1)-Si(1) bond lengths are 2.37 Å. Co(1) is bonded to three equivalent Ru(1) and one Si(1) atom to form distorted CoSiRu3 tetrahedra that share corners with three equivalent Si(1)CoRu3 tetrahedra, corners with six equivalent Co(1)SiRu3 tetrahedra, and edges with three equivalent Si(1)CoRu3 tetrahedra. The Co(1)-Si(1) bond length is 1.95 Å. Si(1) is bonded to three equivalent Ru(1) and one Co(1) atom to form distorted SiCoRu3 tetrahedra that share corners with three equivalent Co(1)SiRu3 tetrahedra, corners with six equivalent Si(1)CoRu3 tetrahedra, and edges with three equivalent Co(1)SiRu3 tetrahedra.