data_La2MgAl
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.37
_cell_length_b   6.37
_cell_length_c   6.37
_cell_angle_alpha   144.71
_cell_angle_beta   129.8
_cell_angle_gamma   62.85
_symmetry_Int_Tables_number   1
_chemical_formula_structural   La2MgAl
_chemical_formula_sum   'La2 Mg1 Al1'
_cell_volume   113.53
_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  0.0  0.0  0.71  1.0
  La  La2  1  0.93  0.0  0.8  1.0
  Mg  Mg3  1  0.0  0.0  0.8  1.0
  Al  Al0  1  0.0  0.7  0.44  1.0

data_La2MgAl
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.86
_cell_length_b   5.41
_cell_length_c   6.37
_cell_angle_alpha   115.1
_cell_angle_beta   107.65
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   La2MgAl
_chemical_formula_sum   'La2 Mg1 Al1'
_cell_volume   113.53
_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  0.13  0.2  0.13  1.0
  La  La1  1  0.29  0.29  0.29  1.0
  Mg  Mg2  1  0.2  0.2  0.2  1.0
  Al  Al3  1  0.56  0.26  0.26  1.0

La La Mg Al
MgLa2Al crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one MgLa2Al cluster. Mg(1) is bonded in a bent 120 degrees geometry to one La(1) and one La(2) atom. The Mg(1)-La(1) bond length is 0.57 Å. The Mg(1)-La(2) bond length is 0.44 Å. There are two inequivalent La sites. In the first La site, La(1) is bonded in a distorted single-bond geometry to one Mg(1) and one Al(1) atom. The La(1)-Al(1) bond length is 1.10 Å. In the second La site, La(2) is bonded in a single-bond geometry to one Mg(1) atom. Al(1) is bonded in a distorted single-bond geometry to one La(1) atom.