The compound described by SrI2 is Baddeleyite-like structured and crystallizes in the orthorhombic Pnma space group. Sr(1) is bonded to three equivalent I(2) and four equivalent I(1) atoms to form a mixture of distorted corner and edge-sharing SrI7 pentagonal bipyramids. There are two inequivalent I sites. In the first I site, I(1) is bonded to four equivalent Sr(1) atoms to form a mixture of distorted corner and edge-sharing ISr4 trigonal pyramids. In the second I site, I(2) is bonded in a trigonal non-coplanar geometry to three equivalent Sr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrI2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.015
_cell_length_b   8.501
_cell_length_c   12.536
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   534.503
_cell_formula_units_Z   4
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  0.250  0.132  0.170  1.0
  Sr  Sr1  1  0.750  0.632  0.330  1.0
  Sr  Sr2  1  0.250  0.368  0.670  1.0
  Sr  Sr3  1  0.750  0.868  0.830  1.0
  I  I4  1  0.250  0.377  0.392  1.0
  I  I5  1  0.250  0.881  0.378  1.0
  I  I6  1  0.750  0.381  0.122  1.0
  I  I7  1  0.250  0.619  0.878  1.0
  I  I8  1  0.250  0.123  0.892  1.0
  I  I9  1  0.750  0.877  0.108  1.0
  I  I10  1  0.750  0.119  0.622  1.0
  I  I11  1  0.750  0.623  0.608  1.0
[/CIF]
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The compound described by SrI2 is Baddeleyite-like structured and crystallizes in the orthorhombic Pnma space group. Sr(1) is bonded to three equivalent I(2) and four equivalent I(1) atoms to form a mixture of distorted corner and edge-sharing SrI7 pentagonal bipyramids. There are two inequivalent I sites. In the first I site, I(1) is bonded to four equivalent Sr(1) atoms to form a mixture of distorted corner and edge-sharing ISr4 trigonal pyramids. In the second I site, I(2) is bonded in a trigonal non-coplanar geometry to three equivalent Sr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrI2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.015
_cell_length_b   8.501
_cell_length_c   12.536
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   534.503
_cell_formula_units_Z   4
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  0.250  0.132  0.170  1.0
  Sr  Sr1  1  0.750  0.632  0.330  1.0
  Sr  Sr2  1  0.250  0.368  0.670  1.0
  Sr  Sr3  1  0.750  0.868  0.830  1.0
  I  I4  1  0.250  0.377  0.392  1.0
  I  I5  1  0.250  0.881  0.378  1.0
  I  I6  1  0.750  0.381  0.122  1.0
  I  I7  1  0.250  0.619  0.878  1.0
  I  I8  1  0.250  0.123  0.892  1.0
  I  I9  1  0.750  0.877  0.108  1.0
  I  I10  1  0.750  0.119  0.622  1.0
  I  I11  1  0.750  0.623  0.608  1.0
[/CIF]
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