The crystal structure described by RbFeI4 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 9-coordinate geometry to one I(1), two equivalent I(3), three equivalent I(2), and three equivalent I(4) atoms. Fe(1) is bonded in a tetrahedral geometry to one I(1), one I(2), one I(3), and one I(4) atom. There are four inequivalent I sites. In the first I site, I(1) is bonded in a single-bond geometry to one Rb(1) and one Fe(1) atom. In the second I site, I(2) is bonded to three equivalent Rb(1) and one Fe(1) atom to form a mixture of distorted edge and corner-sharing IRb3Fe trigonal pyramids. In the third I site, I(3) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one Fe(1) atom. In the fourth I site, I(4) is bonded in a 4-coordinate geometry to three equivalent Rb(1) and one Fe(1) atom. is represented by the CIF card [CIF]
data_RbFeI4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   18.215
_cell_length_b   7.358
_cell_length_c   8.345
_cell_angle_alpha   72.417
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1066.206
_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
  Rb  Rb0  1  0.128  0.186  0.704  1.0
  Rb  Rb1  1  0.872  0.814  0.296  1.0
  Rb  Rb2  1  0.628  0.814  0.796  1.0
  Rb  Rb3  1  0.372  0.186  0.204  1.0
  Fe  Fe4  1  0.372  0.818  0.797  1.0
  Fe  Fe5  1  0.628  0.182  0.203  1.0
  Fe  Fe6  1  0.872  0.182  0.703  1.0
  Fe  Fe7  1  0.128  0.818  0.297  1.0
  I  I8  1  0.252  0.636  0.851  1.0
  I  I9  1  0.748  0.364  0.149  1.0
  I  I10  1  0.752  0.364  0.649  1.0
  I  I11  1  0.248  0.636  0.351  1.0
  I  I12  1  0.053  0.730  0.571  1.0
  I  I13  1  0.947  0.270  0.429  1.0
  I  I14  1  0.553  0.270  0.929  1.0
  I  I15  1  0.447  0.730  0.071  1.0
  I  I16  1  0.447  0.735  0.572  1.0
  I  I17  1  0.553  0.265  0.428  1.0
  I  I18  1  0.947  0.265  0.928  1.0
  I  I19  1  0.053  0.735  0.072  1.0
  I  I20  1  0.842  0.824  0.793  1.0
  I  I21  1  0.158  0.176  0.207  1.0
  I  I22  1  0.342  0.176  0.707  1.0
  I  I23  1  0.658  0.824  0.293  1.0
[/CIF]
.
The crystal structure described by RbFeI4 crystallizes in the monoclinic P2_1/c space group. Rb(1) is bonded in a 9-coordinate geometry to one I(1), two equivalent I(3), three equivalent I(2), and three equivalent I(4) atoms. Fe(1) is bonded in a tetrahedral geometry to one I(1), one I(2), one I(3), and one I(4) atom. There are four inequivalent I sites. In the first I site, I(1) is bonded in a single-bond geometry to one Rb(1) and one Fe(1) atom. In the second I site, I(2) is bonded to three equivalent Rb(1) and one Fe(1) atom to form a mixture of distorted edge and corner-sharing IRb3Fe trigonal pyramids. In the third I site, I(3) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one Fe(1) atom. In the fourth I site, I(4) is bonded in a 4-coordinate geometry to three equivalent Rb(1) and one Fe(1) atom. is represented by the CIF card [CIF]
data_RbFeI4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   18.215
_cell_length_b   7.358
_cell_length_c   8.345
_cell_angle_alpha   72.417
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   1066.206
_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
  Rb  Rb0  1  0.128  0.186  0.704  1.0
  Rb  Rb1  1  0.872  0.814  0.296  1.0
  Rb  Rb2  1  0.628  0.814  0.796  1.0
  Rb  Rb3  1  0.372  0.186  0.204  1.0
  Fe  Fe4  1  0.372  0.818  0.797  1.0
  Fe  Fe5  1  0.628  0.182  0.203  1.0
  Fe  Fe6  1  0.872  0.182  0.703  1.0
  Fe  Fe7  1  0.128  0.818  0.297  1.0
  I  I8  1  0.252  0.636  0.851  1.0
  I  I9  1  0.748  0.364  0.149  1.0
  I  I10  1  0.752  0.364  0.649  1.0
  I  I11  1  0.248  0.636  0.351  1.0
  I  I12  1  0.053  0.730  0.571  1.0
  I  I13  1  0.947  0.270  0.429  1.0
  I  I14  1  0.553  0.270  0.929  1.0
  I  I15  1  0.447  0.730  0.071  1.0
  I  I16  1  0.447  0.735  0.572  1.0
  I  I17  1  0.553  0.265  0.428  1.0
  I  I18  1  0.947  0.265  0.928  1.0
  I  I19  1  0.053  0.735  0.072  1.0
  I  I20  1  0.842  0.824  0.793  1.0
  I  I21  1  0.158  0.176  0.207  1.0
  I  I22  1  0.342  0.176  0.707  1.0
  I  I23  1  0.658  0.824  0.293  1.0
[/CIF]
.