The structure described by SrLaI5 is Zircon-like structured and crystallizes in the monoclinic Cc space group. Sr(1) is bonded in a 9-coordinate geometry to one I(1), one I(3), one I(5), three equivalent I(2), and three equivalent I(4) atoms. La(1) is bonded in a 8-coordinate geometry to one I(2), one I(4), two equivalent I(1), two equivalent I(3), and two equivalent I(5) atoms. There are five inequivalent I sites. In the first I site, I(1) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1) and two equivalent La(1) atoms. In the second I site, I(2) is bonded to three equivalent Sr(1) and one La(1) atom to form a mixture of distorted corner and edge-sharing ISr3La tetrahedra. In the third I site, I(3) is bonded in a distorted bent 150 degrees geometry to one Sr(1) and two equivalent La(1) atoms. In the fourth I site, I(4) is bonded to three equivalent Sr(1) and one La(1) atom to form a mixture of distorted corner and edge-sharing ISr3La tetrahedra. In the fifth I site, I(5) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1) and two equivalent La(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrLaI5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.449
_cell_length_b   11.449
_cell_length_c   7.980
_cell_angle_alpha   88.483
_cell_angle_beta   88.483
_cell_angle_gamma   147.479
_symmetry_Int_Tables_number   1
_cell_volume   559.898
_cell_formula_units_Z   2
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  0.676  0.322  0.256  1.0
  Sr  Sr1  1  0.322  0.676  0.756  1.0
  La  La2  1  0.920  0.080  0.249  1.0
  La  La3  1  0.080  0.920  0.749  1.0
  I  I4  1  0.789  0.713  0.107  1.0
  I  I5  1  0.806  0.200  0.993  1.0
  I  I6  1  0.629  0.370  0.744  1.0
  I  I7  1  0.796  0.190  0.506  1.0
  I  I8  1  0.713  0.789  0.607  1.0
  I  I9  1  0.284  0.208  0.392  1.0
  I  I10  1  0.200  0.806  0.493  1.0
  I  I11  1  0.370  0.629  0.244  1.0
  I  I12  1  0.190  0.796  0.006  1.0
  I  I13  1  0.208  0.284  0.892  1.0
[/CIF]
.
The structure described by SrLaI5 is Zircon-like structured and crystallizes in the monoclinic Cc space group. Sr(1) is bonded in a 9-coordinate geometry to one I(1), one I(3), one I(5), three equivalent I(2), and three equivalent I(4) atoms. La(1) is bonded in a 8-coordinate geometry to one I(2), one I(4), two equivalent I(1), two equivalent I(3), and two equivalent I(5) atoms. There are five inequivalent I sites. In the first I site, I(1) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1) and two equivalent La(1) atoms. In the second I site, I(2) is bonded to three equivalent Sr(1) and one La(1) atom to form a mixture of distorted corner and edge-sharing ISr3La tetrahedra. In the third I site, I(3) is bonded in a distorted bent 150 degrees geometry to one Sr(1) and two equivalent La(1) atoms. In the fourth I site, I(4) is bonded to three equivalent Sr(1) and one La(1) atom to form a mixture of distorted corner and edge-sharing ISr3La tetrahedra. In the fifth I site, I(5) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1) and two equivalent La(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrLaI5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.449
_cell_length_b   11.449
_cell_length_c   7.980
_cell_angle_alpha   88.483
_cell_angle_beta   88.483
_cell_angle_gamma   147.479
_symmetry_Int_Tables_number   1
_cell_volume   559.898
_cell_formula_units_Z   2
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  0.676  0.322  0.256  1.0
  Sr  Sr1  1  0.322  0.676  0.756  1.0
  La  La2  1  0.920  0.080  0.249  1.0
  La  La3  1  0.080  0.920  0.749  1.0
  I  I4  1  0.789  0.713  0.107  1.0
  I  I5  1  0.806  0.200  0.993  1.0
  I  I6  1  0.629  0.370  0.744  1.0
  I  I7  1  0.796  0.190  0.506  1.0
  I  I8  1  0.713  0.789  0.607  1.0
  I  I9  1  0.284  0.208  0.392  1.0
  I  I10  1  0.200  0.806  0.493  1.0
  I  I11  1  0.370  0.629  0.244  1.0
  I  I12  1  0.190  0.796  0.006  1.0
  I  I13  1  0.208  0.284  0.892  1.0
[/CIF]
.