data_LaY2Os
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.46
_cell_length_b   3.46
_cell_length_c   9.58
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   LaY2Os
_chemical_formula_sum   'La1 Y2 Os1'
_cell_volume   114.64
_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  0.0  0.48  1.0
  Y  Y2  1  0.0  0.0  0.92  1.0
  Y  Y3  1  0.73  0.73  0.29  1.0
  Os  Os1  1  0.73  0.73  0.27  1.0

data_LaY2Os
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.89
_cell_length_b   4.89
_cell_length_c   9.58
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   LaY2Os
_chemical_formula_sum   'La2 Y4 Os2'
_cell_volume   229.28
_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  0.48  1.0
  Y  Y1  2  0.0  0.0  0.92  1.0
  Y  Y2  2  0.23  0.5  0.29  1.0
  Os  Os3  2  0.23  0.5  0.27  1.0

La Y Y Os
LaY2Os crystallizes in the monoclinic Cm space group. La(1) is bonded in a distorted single-bond geometry to one Y(1) and one Y(2) atom. The La(1)-Y(1) bond length is 4.24 Å. The La(1)-Y(2) bond length is 2.29 Å. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one La(1), four equivalent Y(1), and one Os(1) atom to form a mixture of distorted corner and edge-sharing YLaY4Os octahedra. The corner-sharing octahedra are not tilted. All Y(1)-Y(1) bond lengths are 3.46 Å. The Y(1)-Os(1) bond length is 3.57 Å. In the second Y site, Y(2) is bonded in a single-bond geometry to one La(1) and one Os(1) atom. The Y(2)-Os(1) bond length is 0.16 Å. Os(1) is bonded in a single-bond geometry to one Y(1) and one Y(2) atom.