data_La2TaAl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.2
_cell_length_b   3.2
_cell_length_c   10.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   La2TaAl
_chemical_formula_sum   'La2 Ta1 Al1'
_cell_volume   102.38
_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  0.6  0.6  0.47  1.0
  La  La2  1  0.0  0.0  0.96  1.0
  Ta  Ta3  1  0.6  0.6  0.41  1.0
  Al  Al0  1  0.0  0.0  0.16  1.0

data_La2TaAl
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.53
_cell_length_b   4.53
_cell_length_c   10.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   La2TaAl
_chemical_formula_sum   'La4 Ta2 Al2'
_cell_volume   204.75
_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  2  0.0  0.0  0.96  1.0
  La  La1  2  0.1  0.5  0.47  1.0
  Ta  Ta2  2  0.1  0.5  0.41  1.0
  Al  Al3  2  0.0  0.0  0.16  1.0

La La Ta Al
LaTaLaAl is alpha carbon monoxide-derived structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two LaAl clusters and two LaTa clusters. In each LaAl cluster, La(2) is bonded in a single-bond geometry to one Al(1) atom. The La(2)-Al(1) bond length is 1.94 Å. Al(1) is bonded in a single-bond geometry to one La(2) atom. In each LaTa cluster, La(1) is bonded in a single-bond geometry to one Ta(1) atom. The La(1)-Ta(1) bond length is 0.60 Å. Ta(1) is bonded in a single-bond geometry to one La(1) atom.