The crystal structure described by SrI2 is Baddeleyite-like structured and crystallizes in the orthorhombic Pbca space group. Sr(1) is bonded to three equivalent I(1) and four equivalent I(2) atoms to form a mixture of distorted edge and corner-sharing SrI7 pentagonal bipyramids. There are two inequivalent I sites. In the first I site, I(1) is bonded in a trigonal planar geometry to three equivalent Sr(1) atoms. In the second I site, I(2) is bonded to four equivalent Sr(1) atoms to form a mixture of edge and corner-sharing ISr4 tetrahedra. is represented by the CIF file [CIF]
data_SrI2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.994
_cell_length_b   8.290
_cell_length_c   15.493
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1026.769
_cell_formula_units_Z   8
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  0.724  0.550  0.889  1.0
  Sr  Sr1  1  0.224  0.450  0.611  1.0
  Sr  Sr2  1  0.776  0.050  0.111  1.0
  Sr  Sr3  1  0.276  0.950  0.389  1.0
  Sr  Sr4  1  0.276  0.450  0.111  1.0
  Sr  Sr5  1  0.776  0.550  0.389  1.0
  Sr  Sr6  1  0.224  0.950  0.889  1.0
  Sr  Sr7  1  0.724  0.050  0.611  1.0
  I  I8  1  0.841  0.891  0.797  1.0
  I  I9  1  0.341  0.109  0.703  1.0
  I  I10  1  0.659  0.391  0.203  1.0
  I  I11  1  0.159  0.609  0.297  1.0
  I  I12  1  0.159  0.109  0.203  1.0
  I  I13  1  0.659  0.891  0.297  1.0
  I  I14  1  0.341  0.609  0.797  1.0
  I  I15  1  0.841  0.391  0.703  1.0
  I  I16  1  0.995  0.733  0.033  1.0
  I  I17  1  0.495  0.267  0.467  1.0
  I  I18  1  0.505  0.233  0.967  1.0
  I  I19  1  0.005  0.767  0.533  1.0
  I  I20  1  0.005  0.267  0.967  1.0
  I  I21  1  0.505  0.733  0.533  1.0
  I  I22  1  0.495  0.767  0.033  1.0
  I  I23  1  0.995  0.233  0.467  1.0
[/CIF]
.
The crystal structure described by SrI2 is Baddeleyite-like structured and crystallizes in the orthorhombic Pbca space group. Sr(1) is bonded to three equivalent I(1) and four equivalent I(2) atoms to form a mixture of distorted edge and corner-sharing SrI7 pentagonal bipyramids. There are two inequivalent I sites. In the first I site, I(1) is bonded in a trigonal planar geometry to three equivalent Sr(1) atoms. In the second I site, I(2) is bonded to four equivalent Sr(1) atoms to form a mixture of edge and corner-sharing ISr4 tetrahedra. is represented by the CIF file [CIF]
data_SrI2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.994
_cell_length_b   8.290
_cell_length_c   15.493
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1026.769
_cell_formula_units_Z   8
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  0.724  0.550  0.889  1.0
  Sr  Sr1  1  0.224  0.450  0.611  1.0
  Sr  Sr2  1  0.776  0.050  0.111  1.0
  Sr  Sr3  1  0.276  0.950  0.389  1.0
  Sr  Sr4  1  0.276  0.450  0.111  1.0
  Sr  Sr5  1  0.776  0.550  0.389  1.0
  Sr  Sr6  1  0.224  0.950  0.889  1.0
  Sr  Sr7  1  0.724  0.050  0.611  1.0
  I  I8  1  0.841  0.891  0.797  1.0
  I  I9  1  0.341  0.109  0.703  1.0
  I  I10  1  0.659  0.391  0.203  1.0
  I  I11  1  0.159  0.609  0.297  1.0
  I  I12  1  0.159  0.109  0.203  1.0
  I  I13  1  0.659  0.891  0.297  1.0
  I  I14  1  0.341  0.609  0.797  1.0
  I  I15  1  0.841  0.391  0.703  1.0
  I  I16  1  0.995  0.733  0.033  1.0
  I  I17  1  0.495  0.267  0.467  1.0
  I  I18  1  0.505  0.233  0.967  1.0
  I  I19  1  0.005  0.767  0.533  1.0
  I  I20  1  0.005  0.267  0.967  1.0
  I  I21  1  0.505  0.733  0.533  1.0
  I  I22  1  0.495  0.767  0.033  1.0
  I  I23  1  0.995  0.233  0.467  1.0
[/CIF]
.