data_LaAlOs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.94
_cell_length_b   2.94
_cell_length_c   8.49
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaAlOs2
_chemical_formula_sum   'La1 Al1 Os2'
_cell_volume   73.52
_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  0.47  0.47  0.46  1.0
  Al  Al0  1  0.0  0.0  0.77  1.0
  Os  Os2  1  0.0  0.0  0.44  1.0
  Os  Os3  1  0.47  0.47  0.05  1.0

data_LaAlOs2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.16
_cell_length_b   4.16
_cell_length_c   8.49
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LaAlOs2
_chemical_formula_sum   'La2 Al2 Os4'
_cell_volume   147.03
_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  0.47  0.0  0.46  1.0
  Al  Al1  2  0.0  0.0  0.77  1.0
  Os  Os2  2  0.0  0.0  0.44  1.0
  Os  Os3  2  0.47  0.0  0.05  1.0

La Al Os Os
LaOs2Al crystallizes in the monoclinic Cm space group. La(1) is bonded in a distorted square co-planar geometry to one Os(2), four equivalent Os(1), and four equivalent Al(1) atoms. The La(1)-Os(2) bond length is 3.51 Å. There are a spread of La(1)-Os(1) bond distances ranging from 1.97-2.21 Å. There are a spread of La(1)-Al(1) bond distances ranging from 3.27-3.42 Å. There are two inequivalent Os sites. In the first Os site, Os(1) is bonded in a distorted square co-planar geometry to four equivalent La(1) and one Al(1) atom. The Os(1)-Al(1) bond length is 2.79 Å. In the second Os site, Os(2) is bonded in a 9-coordinate geometry to one La(1), four equivalent Os(2), and four equivalent Al(1) atoms. All Os(2)-Os(2) bond lengths are 2.94 Å. There are a spread of Os(2)-Al(1) bond distances ranging from 3.07-3.22 Å. Al(1) is bonded in a 13-coordinate geometry to four equivalent La(1), one Os(1), four equivalent Os(2), and four equivalent Al(1) atoms. All Al(1)-Al(1) bond lengths are 2.94 Å.