data_LaY2Co
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.18
_cell_length_b   5.18
_cell_length_c   5.18
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaY2Co
_chemical_formula_sum   'La1 Y2 Co1'
_cell_volume   98.21
_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  0.66  0.66  0.66  1.0
  Y  Y2  1  0.83  0.83  0.83  1.0
  Y  Y3  1  0.49  0.49  0.49  1.0
  Co  Co0  1  0.0  0.0  0.0  1.0

data_LaY2Co
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.18
_cell_length_b   5.18
_cell_length_c   12.69
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   LaY2Co
_chemical_formula_sum   'La3 Y6 Co3'
_cell_volume   294.63
_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  0.34  1.0
  Y  Y1  3  0.0  0.0  0.17  1.0
  Y  Y2  3  0.0  0.0  0.51  1.0
  Co  Co3  3  0.0  0.0  -0.0  1.0

La Y Y Co
LaY2Co crystallizes in the trigonal R3m space group. La(1) is bonded to one Y(1), one Y(2), and three equivalent Co(1) atoms to form corner-sharing LaY2Co3 trigonal bipyramids. The La(1)-Y(1) bond length is 2.14 Å. The La(1)-Y(2) bond length is 2.14 Å. All La(1)-Co(1) bond lengths are 2.99 Å. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a linear geometry to one La(1) and one Co(1) atom. The Y(1)-Co(1) bond length is 2.14 Å. In the second Y site, Y(2) is bonded in a distorted single-bond geometry to one La(1) atom. Co(1) is bonded in a 1-coordinate geometry to three equivalent La(1) and one Y(1) atom.