data_La2YTa
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.9
_cell_length_b   4.9
_cell_length_c   4.83
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   La2YTa
_chemical_formula_sum   'La2 Y1 Ta1'
_cell_volume   116.03
_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  La0  1  0.0  0.45  0.41  1.0
  La  La1  1  0.45  0.0  0.41  1.0
  Y  Y3  1  0.0  0.0  0.0  1.0
  Ta  Ta2  1  0.45  0.45  0.0  1.0

data_La2YTa
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.93
_cell_length_b   6.93
_cell_length_c   4.83
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   La2YTa
_chemical_formula_sum   'La4 Y2 Ta2'
_cell_volume   232.06
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  La0  4  0.23  0.23  0.41  1.0
  Y  Y1  2  0.0  0.0  0.0  1.0
  Ta  Ta2  2  0.45  0.0  -0.0  1.0

La La Y Ta
La2YTa crystallizes in the monoclinic Cm space group. La(1) is bonded in a 12-coordinate geometry to four equivalent La(1), four equivalent Y(1), and four equivalent Ta(1) atoms. There are a spread of La(1)-La(1) bond distances ranging from 3.13-3.80 Å. There are a spread of La(1)-Y(1) bond distances ranging from 2.98-3.91 Å. There are a spread of La(1)-Ta(1) bond distances ranging from 2.98-3.91 Å. Y(1) is bonded to eight equivalent La(1) and four equivalent Ta(1) atoms to form distorted YLa8Ta4 cuboctahedra that share corners with twelve equivalent Y(1)La8Ta4 cuboctahedra, edges with eight equivalent Ta(1)La8Y4 cuboctahedra, faces with four equivalent Ta(1)La8Y4 cuboctahedra, and faces with six equivalent Y(1)La8Ta4 cuboctahedra. There are a spread of Y(1)-Ta(1) bond distances ranging from 3.13-3.80 Å. Ta(1) is bonded to eight equivalent La(1) and four equivalent Y(1) atoms to form distorted TaLa8Y4 cuboctahedra that share corners with twelve equivalent Ta(1)La8Y4 cuboctahedra, edges with eight equivalent Y(1)La8Ta4 cuboctahedra, faces with four equivalent Y(1)La8Ta4 cuboctahedra, and faces with six equivalent Ta(1)La8Y4 cuboctahedra.