The compound described by Ba3SrI8 is Fluorite-derived structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a body-centered cubic geometry to eight equivalent I(1) atoms. In the second Ba site, Ba(2) is bonded in a body-centered cubic geometry to eight equivalent I(1) atoms. Sr(1) is bonded in a body-centered cubic geometry to eight equivalent I(1) atoms. I(1) is bonded to one Ba(2), two equivalent Ba(1), and one Sr(1) atom to form a mixture of corner and edge-sharing IBa3Sr tetrahedra. is represented by the CIF card [CIF]
data_Ba3SrI8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.277
_cell_length_b   10.133
_cell_length_c   8.277
_cell_angle_alpha   65.894
_cell_angle_beta   90.000
_cell_angle_gamma   114.106
_symmetry_Int_Tables_number   1
_cell_volume   566.637
_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
  Ba  Ba0  1  0.250  0.500  0.250  1.0
  Ba  Ba1  1  0.500  0.000  0.500  1.0
  Ba  Ba2  1  0.750  0.500  0.750  1.0
  Sr  Sr3  1  0.000  0.000  0.000  1.0
  I  I4  1  0.877  0.246  0.123  1.0
  I  I5  1  0.368  0.246  0.123  1.0
  I  I6  1  0.632  0.754  0.368  1.0
  I  I7  1  0.123  0.754  0.368  1.0
  I  I8  1  0.877  0.246  0.632  1.0
  I  I9  1  0.368  0.246  0.632  1.0
  I  I10  1  0.123  0.754  0.877  1.0
  I  I11  1  0.632  0.754  0.877  1.0
[/CIF]
.
The compound described by Ba3SrI8 is Fluorite-derived structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a body-centered cubic geometry to eight equivalent I(1) atoms. In the second Ba site, Ba(2) is bonded in a body-centered cubic geometry to eight equivalent I(1) atoms. Sr(1) is bonded in a body-centered cubic geometry to eight equivalent I(1) atoms. I(1) is bonded to one Ba(2), two equivalent Ba(1), and one Sr(1) atom to form a mixture of corner and edge-sharing IBa3Sr tetrahedra. is represented by the CIF card [CIF]
data_Ba3SrI8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.277
_cell_length_b   10.133
_cell_length_c   8.277
_cell_angle_alpha   65.894
_cell_angle_beta   90.000
_cell_angle_gamma   114.106
_symmetry_Int_Tables_number   1
_cell_volume   566.637
_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
  Ba  Ba0  1  0.250  0.500  0.250  1.0
  Ba  Ba1  1  0.500  0.000  0.500  1.0
  Ba  Ba2  1  0.750  0.500  0.750  1.0
  Sr  Sr3  1  0.000  0.000  0.000  1.0
  I  I4  1  0.877  0.246  0.123  1.0
  I  I5  1  0.368  0.246  0.123  1.0
  I  I6  1  0.632  0.754  0.368  1.0
  I  I7  1  0.123  0.754  0.368  1.0
  I  I8  1  0.877  0.246  0.632  1.0
  I  I9  1  0.368  0.246  0.632  1.0
  I  I10  1  0.123  0.754  0.877  1.0
  I  I11  1  0.632  0.754  0.877  1.0
[/CIF]
.