The compound described by La3AsI3 crystallizes in the cubic I4_132 space group. La(1) is bonded to two equivalent As(1) and four equivalent I(1) atoms to form a mixture of corner and edge-sharing LaAs2I4 octahedra. The corner-sharing octahedral tilt angles range from 5-11°. As(1) is bonded to six equivalent La(1) atoms to form edge-sharing AsLa6 octahedra. I(1) is bonded in a rectangular see-saw-like geometry to four equivalent La(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_La3AsI3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.964
_cell_length_b   10.964
_cell_length_c   10.964
_cell_angle_alpha   109.470
_cell_angle_beta   109.472
_cell_angle_gamma   109.470
_symmetry_Int_Tables_number   1
_cell_volume   1014.556
_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
  La  La0  1  0.766  0.531  0.516  1.0
  La  La1  1  0.984  0.516  0.250  1.0
  La  La2  1  0.531  0.516  0.766  1.0
  La  La3  1  0.250  0.766  0.734  1.0
  La  La4  1  0.516  0.766  0.531  1.0
  La  La5  1  0.734  0.250  0.766  1.0
  La  La6  1  0.516  0.250  0.984  1.0
  La  La7  1  0.734  0.984  0.969  1.0
  La  La8  1  0.766  0.734  0.250  1.0
  La  La9  1  0.969  0.734  0.984  1.0
  La  La10  1  0.250  0.984  0.516  1.0
  La  La11  1  0.984  0.969  0.734  1.0
  As  As12  1  0.750  0.750  0.750  1.0
  As  As13  1  1.000  0.750  0.500  1.0
  As  As14  1  0.750  0.500  1.000  1.0
  As  As15  1  0.500  0.000  0.750  1.0
  I  I16  1  0.260  0.750  0.240  1.0
  I  I17  1  0.750  0.010  0.490  1.0
  I  I18  1  0.010  0.490  0.750  1.0
  I  I19  1  0.020  0.260  0.010  1.0
  I  I20  1  0.490  0.240  0.480  1.0
  I  I21  1  0.010  0.020  0.260  1.0
  I  I22  1  0.240  0.480  0.490  1.0
  I  I23  1  0.240  0.260  0.750  1.0
  I  I24  1  0.490  0.750  0.010  1.0
  I  I25  1  0.480  0.490  0.240  1.0
  I  I26  1  0.750  0.240  0.260  1.0
  I  I27  1  0.260  0.010  0.020  1.0
[/CIF]
.
The compound described by La3AsI3 crystallizes in the cubic I4_132 space group. La(1) is bonded to two equivalent As(1) and four equivalent I(1) atoms to form a mixture of corner and edge-sharing LaAs2I4 octahedra. The corner-sharing octahedral tilt angles range from 5-11°. As(1) is bonded to six equivalent La(1) atoms to form edge-sharing AsLa6 octahedra. I(1) is bonded in a rectangular see-saw-like geometry to four equivalent La(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_La3AsI3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.964
_cell_length_b   10.964
_cell_length_c   10.964
_cell_angle_alpha   109.470
_cell_angle_beta   109.472
_cell_angle_gamma   109.470
_symmetry_Int_Tables_number   1
_cell_volume   1014.556
_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
  La  La0  1  0.766  0.531  0.516  1.0
  La  La1  1  0.984  0.516  0.250  1.0
  La  La2  1  0.531  0.516  0.766  1.0
  La  La3  1  0.250  0.766  0.734  1.0
  La  La4  1  0.516  0.766  0.531  1.0
  La  La5  1  0.734  0.250  0.766  1.0
  La  La6  1  0.516  0.250  0.984  1.0
  La  La7  1  0.734  0.984  0.969  1.0
  La  La8  1  0.766  0.734  0.250  1.0
  La  La9  1  0.969  0.734  0.984  1.0
  La  La10  1  0.250  0.984  0.516  1.0
  La  La11  1  0.984  0.969  0.734  1.0
  As  As12  1  0.750  0.750  0.750  1.0
  As  As13  1  1.000  0.750  0.500  1.0
  As  As14  1  0.750  0.500  1.000  1.0
  As  As15  1  0.500  0.000  0.750  1.0
  I  I16  1  0.260  0.750  0.240  1.0
  I  I17  1  0.750  0.010  0.490  1.0
  I  I18  1  0.010  0.490  0.750  1.0
  I  I19  1  0.020  0.260  0.010  1.0
  I  I20  1  0.490  0.240  0.480  1.0
  I  I21  1  0.010  0.020  0.260  1.0
  I  I22  1  0.240  0.480  0.490  1.0
  I  I23  1  0.240  0.260  0.750  1.0
  I  I24  1  0.490  0.750  0.010  1.0
  I  I25  1  0.480  0.490  0.240  1.0
  I  I26  1  0.750  0.240  0.260  1.0
  I  I27  1  0.260  0.010  0.020  1.0
[/CIF]
.