data_LaAlSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.29
_cell_length_b   3.29
_cell_length_c   7.31
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaAlSi
_chemical_formula_sum   'La1 Al1 Si1'
_cell_volume   68.4
_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  0.64  0.95  0.52  1.0
  Al  Al0  1  0.0  0.0  0.99  1.0
  Si  Si2  1  0.0  0.9  0.11  1.0

data_LaAlSi
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.29
_cell_length_b   3.29
_cell_length_c   7.31
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaAlSi
_chemical_formula_sum   'La1 Al1 Si1'
_cell_volume   68.4
_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  0.64  0.95  0.52  1.0
  Al  Al1  1  0.0  0.0  0.99  1.0
  Si  Si2  1  0.0  0.9  0.11  1.0

La Al Si
AlSiLa crystallizes in the triclinic P1 space group. La(1) is bonded in a 9-coordinate geometry to six equivalent La(1), one Al(1), and two equivalent Si(1) atoms. All La(1)-La(1) bond lengths are 3.29 Å. The La(1)-Al(1) bond length is 3.64 Å. There is one shorter (3.21 Å) and one longer (3.59 Å) La(1)-Si(1) bond length. Al(1) is bonded in a single-bond geometry to one La(1) and one Si(1) atom. The Al(1)-Si(1) bond length is 0.95 Å. Si(1) is bonded in a single-bond geometry to two equivalent La(1) and one Al(1) atom.