The crystal structure described by EuI2 is Baddeleyite-like structured and crystallizes in the orthorhombic Pbca space group. Eu(1) is bonded to three equivalent I(1) and four equivalent I(2) atoms to form a mixture of distorted corner and edge-sharing EuI7 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 Eu(1) atoms. In the second I site, I(2) is bonded to four equivalent Eu(1) atoms to form a mixture of corner and edge-sharing IEu4 trigonal pyramids. is represented by the CIF card [CIF]
data_EuI2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.897
_cell_length_b   8.228
_cell_length_c   15.236
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.001
_symmetry_Int_Tables_number   1
_cell_volume   990.037
_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
  Eu  Eu0  1  0.224  0.448  0.609  1.0
  Eu  Eu1  1  0.276  0.948  0.391  1.0
  Eu  Eu2  1  0.776  0.552  0.391  1.0
  Eu  Eu3  1  0.224  0.948  0.891  1.0
  Eu  Eu4  1  0.724  0.052  0.609  1.0
  Eu  Eu5  1  0.724  0.552  0.891  1.0
  Eu  Eu6  1  0.276  0.448  0.109  1.0
  Eu  Eu7  1  0.776  0.052  0.109  1.0
  I  I8  1  0.662  0.394  0.203  1.0
  I  I9  1  0.994  0.231  0.466  1.0
  I  I10  1  0.506  0.231  0.966  1.0
  I  I11  1  0.506  0.731  0.534  1.0
  I  I12  1  0.162  0.106  0.203  1.0
  I  I13  1  0.162  0.606  0.297  1.0
  I  I14  1  0.838  0.394  0.703  1.0
  I  I15  1  0.994  0.731  0.034  1.0
  I  I16  1  0.494  0.269  0.466  1.0
  I  I17  1  0.494  0.769  0.034  1.0
  I  I18  1  0.338  0.106  0.703  1.0
  I  I19  1  0.662  0.894  0.297  1.0
  I  I20  1  0.006  0.769  0.534  1.0
  I  I21  1  0.006  0.269  0.966  1.0
  I  I22  1  0.338  0.606  0.797  1.0
  I  I23  1  0.838  0.894  0.797  1.0
[/CIF]
.
The crystal structure described by EuI2 is Baddeleyite-like structured and crystallizes in the orthorhombic Pbca space group. Eu(1) is bonded to three equivalent I(1) and four equivalent I(2) atoms to form a mixture of distorted corner and edge-sharing EuI7 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 Eu(1) atoms. In the second I site, I(2) is bonded to four equivalent Eu(1) atoms to form a mixture of corner and edge-sharing IEu4 trigonal pyramids. is represented by the CIF card [CIF]
data_EuI2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.897
_cell_length_b   8.228
_cell_length_c   15.236
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.001
_symmetry_Int_Tables_number   1
_cell_volume   990.037
_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
  Eu  Eu0  1  0.224  0.448  0.609  1.0
  Eu  Eu1  1  0.276  0.948  0.391  1.0
  Eu  Eu2  1  0.776  0.552  0.391  1.0
  Eu  Eu3  1  0.224  0.948  0.891  1.0
  Eu  Eu4  1  0.724  0.052  0.609  1.0
  Eu  Eu5  1  0.724  0.552  0.891  1.0
  Eu  Eu6  1  0.276  0.448  0.109  1.0
  Eu  Eu7  1  0.776  0.052  0.109  1.0
  I  I8  1  0.662  0.394  0.203  1.0
  I  I9  1  0.994  0.231  0.466  1.0
  I  I10  1  0.506  0.231  0.966  1.0
  I  I11  1  0.506  0.731  0.534  1.0
  I  I12  1  0.162  0.106  0.203  1.0
  I  I13  1  0.162  0.606  0.297  1.0
  I  I14  1  0.838  0.394  0.703  1.0
  I  I15  1  0.994  0.731  0.034  1.0
  I  I16  1  0.494  0.269  0.466  1.0
  I  I17  1  0.494  0.769  0.034  1.0
  I  I18  1  0.338  0.106  0.703  1.0
  I  I19  1  0.662  0.894  0.297  1.0
  I  I20  1  0.006  0.769  0.534  1.0
  I  I21  1  0.006  0.269  0.966  1.0
  I  I22  1  0.338  0.606  0.797  1.0
  I  I23  1  0.838  0.894  0.797  1.0
[/CIF]
.