data_La2CoRu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.86
_cell_length_b   4.86
_cell_length_c   4.86
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   La2CoRu
_chemical_formula_sum   'La2 Co1 Ru1'
_cell_volume   81.01
_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
  La  La1  1  0.43  0.43  0.43  1.0
  La  La2  1  0.72  0.72  0.72  1.0
  Co  Co0  1  0.0  0.0  0.0  1.0
  Ru  Ru3  1  0.15  0.15  0.15  1.0

data_La2CoRu
_symmetry_space_group_name_H-M   R3m
_cell_length_a   4.86
_cell_length_b   4.86
_cell_length_c   11.9
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   La2CoRu
_chemical_formula_sum   'La6 Co3 Ru3'
_cell_volume   243.04
_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
  La  La0  3  0.0  0.0  0.28  1.0
  La  La1  3  0.0  0.0  0.57  1.0
  Co  Co2  3  0.0  0.0  0.0  1.0
  Ru  Ru3  3  0.0  0.0  0.85  1.0

La La Co Ru
La2RuCo crystallizes in the trigonal R3m space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 3-coordinate geometry to three equivalent Ru(1) atoms. All La(1)-Ru(1) bond lengths are 2.87 Å. In the second La site, La(2) is bonded in a 7-coordinate geometry to three equivalent Ru(1) and four equivalent Co(1) atoms. All La(2)-Ru(1) bond lengths are 3.05 Å. There are three shorter (2.87 Å) and one longer (3.36 Å) La(2)-Co(1) bond length. Ru(1) is bonded in a distorted single-bond geometry to three equivalent La(1), three equivalent La(2), and one Co(1) atom. The Ru(1)-Co(1) bond length is 1.80 Å. Co(1) is bonded in a distorted single-bond geometry to four equivalent La(2) and one Ru(1) atom.