The crystal structure described by SrLa6OsI12 is trigonal omega-derived structured and crystallizes in the trigonal R-3 space group. Sr(1) is bonded to six equivalent I(1) atoms to form SrI6 octahedra that share edges with six equivalent La(1)OsI5 octahedra. La(1) is bonded to one Os(1), two equivalent I(1), and three equivalent I(2) atoms to form LaOsI5 octahedra that share corners with three equivalent La(1)OsI5 octahedra,  an edgeedge with one Sr(1)I6 octahedra, and edges with five equivalent La(1)OsI5 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. Os(1) is bonded in an octahedral geometry to six equivalent La(1) atoms. There are two inequivalent I sites. In the first I site, I(1) is bonded in a distorted T-shaped geometry to one Sr(1) and two equivalent La(1) atoms. In the second I site, I(2) is bonded in a T-shaped geometry to three equivalent La(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrLa6OsI12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.195
_cell_length_b   10.195
_cell_length_c   10.195
_cell_angle_alpha   106.554
_cell_angle_beta   106.554
_cell_angle_gamma   106.554
_symmetry_Int_Tables_number   1
_cell_volume   893.108
_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
  Sr  Sr0  1  0.500  0.500  0.500  1.0
  La  La1  1  0.303  0.098  0.024  1.0
  La  La2  1  0.976  0.697  0.902  1.0
  La  La3  1  0.697  0.902  0.976  1.0
  La  La4  1  0.902  0.976  0.697  1.0
  La  La5  1  0.098  0.024  0.303  1.0
  La  La6  1  0.024  0.303  0.098  1.0
  Os  Os7  1  0.000  0.000  0.000  1.0
  I  I8  1  0.852  0.623  0.543  1.0
  I  I9  1  0.925  0.320  0.773  1.0
  I  I10  1  0.320  0.773  0.925  1.0
  I  I11  1  0.773  0.925  0.320  1.0
  I  I12  1  0.377  0.457  0.148  1.0
  I  I13  1  0.543  0.852  0.623  1.0
  I  I14  1  0.227  0.075  0.680  1.0
  I  I15  1  0.680  0.227  0.075  1.0
  I  I16  1  0.075  0.680  0.227  1.0
  I  I17  1  0.457  0.148  0.377  1.0
  I  I18  1  0.148  0.377  0.457  1.0
  I  I19  1  0.623  0.543  0.852  1.0
[/CIF]
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The crystal structure described by SrLa6OsI12 is trigonal omega-derived structured and crystallizes in the trigonal R-3 space group. Sr(1) is bonded to six equivalent I(1) atoms to form SrI6 octahedra that share edges with six equivalent La(1)OsI5 octahedra. La(1) is bonded to one Os(1), two equivalent I(1), and three equivalent I(2) atoms to form LaOsI5 octahedra that share corners with three equivalent La(1)OsI5 octahedra,  an edgeedge with one Sr(1)I6 octahedra, and edges with five equivalent La(1)OsI5 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. Os(1) is bonded in an octahedral geometry to six equivalent La(1) atoms. There are two inequivalent I sites. In the first I site, I(1) is bonded in a distorted T-shaped geometry to one Sr(1) and two equivalent La(1) atoms. In the second I site, I(2) is bonded in a T-shaped geometry to three equivalent La(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrLa6OsI12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.195
_cell_length_b   10.195
_cell_length_c   10.195
_cell_angle_alpha   106.554
_cell_angle_beta   106.554
_cell_angle_gamma   106.554
_symmetry_Int_Tables_number   1
_cell_volume   893.108
_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
  Sr  Sr0  1  0.500  0.500  0.500  1.0
  La  La1  1  0.303  0.098  0.024  1.0
  La  La2  1  0.976  0.697  0.902  1.0
  La  La3  1  0.697  0.902  0.976  1.0
  La  La4  1  0.902  0.976  0.697  1.0
  La  La5  1  0.098  0.024  0.303  1.0
  La  La6  1  0.024  0.303  0.098  1.0
  Os  Os7  1  0.000  0.000  0.000  1.0
  I  I8  1  0.852  0.623  0.543  1.0
  I  I9  1  0.925  0.320  0.773  1.0
  I  I10  1  0.320  0.773  0.925  1.0
  I  I11  1  0.773  0.925  0.320  1.0
  I  I12  1  0.377  0.457  0.148  1.0
  I  I13  1  0.543  0.852  0.623  1.0
  I  I14  1  0.227  0.075  0.680  1.0
  I  I15  1  0.680  0.227  0.075  1.0
  I  I16  1  0.075  0.680  0.227  1.0
  I  I17  1  0.457  0.148  0.377  1.0
  I  I18  1  0.148  0.377  0.457  1.0
  I  I19  1  0.623  0.543  0.852  1.0
[/CIF]
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