The material structure described by La3AsBr3 crystallizes in the cubic I4_132 space group. La(1) is bonded to two equivalent As(1) and four equivalent Br(1) atoms to form a mixture of edge and corner-sharing LaAs2Br4 octahedra. The corner-sharing octahedral tilt angles range from 3-7°. As(1) is bonded to six equivalent La(1) atoms to form edge-sharing AsLa6 octahedra. Br(1) is bonded in a rectangular see-saw-like geometry to four equivalent La(1) atoms. is represented by the CIF file [CIF]
data_La3AsBr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.560
_cell_length_b   10.560
_cell_length_c   10.560
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   906.434
_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  0.481  0.490  0.240  1.0
  La  La1  1  0.750  0.240  0.260  1.0
  La  La2  1  0.750  0.010  0.490  1.0
  La  La3  1  0.240  0.481  0.490  1.0
  La  La4  1  0.260  0.750  0.240  1.0
  La  La5  1  0.019  0.260  0.010  1.0
  La  La6  1  0.010  0.019  0.260  1.0
  La  La7  1  0.490  0.750  0.010  1.0
  La  La8  1  0.490  0.240  0.481  1.0
  La  La9  1  0.010  0.490  0.750  1.0
  La  La10  1  0.260  0.010  0.019  1.0
  La  La11  1  0.240  0.260  0.750  1.0
  As  As12  1  0.250  0.250  0.250  1.0
  As  As13  1  0.500  1.000  0.250  1.0
  As  As14  1  0.000  0.250  0.500  1.0
  As  As15  1  0.250  0.500  0.000  1.0
  Br  Br16  1  0.250  0.756  0.744  1.0
  Br  Br17  1  0.513  0.506  0.756  1.0
  Br  Br18  1  0.987  0.744  0.994  1.0
  Br  Br19  1  0.744  0.250  0.756  1.0
  Br  Br20  1  0.994  0.987  0.744  1.0
  Br  Br21  1  0.250  0.994  0.506  1.0
  Br  Br22  1  0.756  0.513  0.506  1.0
  Br  Br23  1  0.506  0.250  0.994  1.0
  Br  Br24  1  0.756  0.744  0.250  1.0
  Br  Br25  1  0.744  0.994  0.987  1.0
  Br  Br26  1  0.994  0.506  0.250  1.0
  Br  Br27  1  0.506  0.756  0.513  1.0
[/CIF]
.
The material structure described by La3AsBr3 crystallizes in the cubic I4_132 space group. La(1) is bonded to two equivalent As(1) and four equivalent Br(1) atoms to form a mixture of edge and corner-sharing LaAs2Br4 octahedra. The corner-sharing octahedral tilt angles range from 3-7°. As(1) is bonded to six equivalent La(1) atoms to form edge-sharing AsLa6 octahedra. Br(1) is bonded in a rectangular see-saw-like geometry to four equivalent La(1) atoms. is represented by the CIF file [CIF]
data_La3AsBr3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.560
_cell_length_b   10.560
_cell_length_c   10.560
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   906.434
_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  0.481  0.490  0.240  1.0
  La  La1  1  0.750  0.240  0.260  1.0
  La  La2  1  0.750  0.010  0.490  1.0
  La  La3  1  0.240  0.481  0.490  1.0
  La  La4  1  0.260  0.750  0.240  1.0
  La  La5  1  0.019  0.260  0.010  1.0
  La  La6  1  0.010  0.019  0.260  1.0
  La  La7  1  0.490  0.750  0.010  1.0
  La  La8  1  0.490  0.240  0.481  1.0
  La  La9  1  0.010  0.490  0.750  1.0
  La  La10  1  0.260  0.010  0.019  1.0
  La  La11  1  0.240  0.260  0.750  1.0
  As  As12  1  0.250  0.250  0.250  1.0
  As  As13  1  0.500  1.000  0.250  1.0
  As  As14  1  0.000  0.250  0.500  1.0
  As  As15  1  0.250  0.500  0.000  1.0
  Br  Br16  1  0.250  0.756  0.744  1.0
  Br  Br17  1  0.513  0.506  0.756  1.0
  Br  Br18  1  0.987  0.744  0.994  1.0
  Br  Br19  1  0.744  0.250  0.756  1.0
  Br  Br20  1  0.994  0.987  0.744  1.0
  Br  Br21  1  0.250  0.994  0.506  1.0
  Br  Br22  1  0.756  0.513  0.506  1.0
  Br  Br23  1  0.506  0.250  0.994  1.0
  Br  Br24  1  0.756  0.744  0.250  1.0
  Br  Br25  1  0.744  0.994  0.987  1.0
  Br  Br26  1  0.994  0.506  0.250  1.0
  Br  Br27  1  0.506  0.756  0.513  1.0
[/CIF]
.