The material structure described by SrMgLa3AlO8 is (La,Ba)CuO4-derived structured and crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded in a 9-coordinate geometry to one O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(5) atoms. Mg(1) is bonded to one O(1), one O(4), and four equivalent O(5) atoms to form MgO6 octahedra that share corners with four equivalent Al(1)O6 octahedra. The corner-sharing octahedral tilt angles are 2°. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(1), two equivalent O(3), two equivalent O(4), and four equivalent O(5) atoms. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and four equivalent O(5) atoms. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(2), and four equivalent O(5) atoms. Al(1) is bonded to one O(2), one O(3), and four equivalent O(5) atoms to form AlO6 octahedra that share corners with four equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 2°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one La(1), two equivalent La(2), and two equivalent La(3) atoms to form distorted OLa5Mg octahedra that share  a cornercorner with one O(4)Sr2La3Mg octahedra, corners with four equivalent O(1)La5Mg octahedra, corners with twelve equivalent O(5)SrLa3MgAl octahedra, edges with two equivalent O(3)Sr2La3Al octahedra, edges with two equivalent O(4)Sr2La3Mg octahedra, edges with four equivalent O(2)SrLa4Al octahedra, and faces with four equivalent O(5)SrLa3MgAl octahedra. The corner-sharing octahedral tilt angles range from 0-53°. In the second O site, O(2) is bonded to one Sr(1), two equivalent La(2), two equivalent La(3), and one Al(1) atom to form distorted OSrLa4Al octahedra that share  a cornercorner with one O(3)Sr2La3Al octahedra, corners with four equivalent O(2)SrLa4Al octahedra, corners with twelve equivalent O(5)SrLa3MgAl octahedra, edges with two equivalent O(3)Sr2La3Al octahedra, edges with two equivalent O(4)Sr2La3Mg octahedra, edges with four equivalent O(1)La5Mg octahedra, and faces with four equivalent O(5)SrLa3MgAl octahedra. The corner-sharing octahedral tilt angles range from 0-53°. In the third O site, O(3) is bonded to two equivalent Sr(1), one La(3), two equivalent La(1), and one Al(1) atom to form distorted OSr2La3Al octahedra that share  a cornercorner with one O(2)SrLa4Al octahedra, corners with four equivalent O(3)Sr2La3Al octahedra, corners with twelve equivalent O(5)SrLa3MgAl octahedra, edges with two equivalent O(1)La5Mg octahedra, edges with two equivalent O(2)SrLa4Al octahedra, edges with four equivalent O(4)Sr2La3Mg octahedra, and faces with four equivalent O(5)SrLa3MgAl octahedra. The corner-sharing octahedral tilt angles range from 0-52°. In the fourth O site, O(4) is bonded to two equivalent Sr(1), one Mg(1), one La(2), and two equivalent La(1) atoms to form distorted OSr2La3Mg octahedra that share  a cornercorner with one O(1)La5Mg octahedra, corners with four equivalent O(4)Sr2La3Mg octahedra, corners with twelve equivalent O(5)SrLa3MgAl octahedra, edges with two equivalent O(1)La5Mg octahedra, edges with two equivalent O(2)SrLa4Al octahedra, edges with four equivalent O(3)Sr2La3Al octahedra, and faces with four equivalent O(5)SrLa3MgAl octahedra. The corner-sharing octahedral tilt angles range from 0-54°. In the fifth O site, O(5) is bonded to one Sr(1), one Mg(1), one La(1), one La(2), one La(3), and one Al(1) atom to form distorted OSrLa3MgAl octahedra that share corners with two equivalent O(5)SrLa3MgAl octahedra, corners with three equivalent O(1)La5Mg octahedra, corners with three equivalent O(3)Sr2La3Al octahedra, corners with three equivalent O(4)Sr2La3Mg octahedra, corners with three equivalent O(2)SrLa4Al octahedra, edges with two equivalent O(5)SrLa3MgAl octahedra,  a faceface with one O(1)La5Mg octahedra,  a faceface with one O(3)Sr2La3Al octahedra,  a faceface with one O(4)Sr2La3Mg octahedra,  a faceface with one O(2)SrLa4Al octahedra, and faces with four equivalent O(5)SrLa3MgAl octahedra. The corner-sharing octahedral tilt angles range from 0-54°. is represented by the CIF file [CIF]
data_SrLa3MgAlO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.882
_cell_length_b   6.882
_cell_length_c   5.437
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   133.236
_symmetry_Int_Tables_number   1
_cell_volume   187.635
_cell_formula_units_Z   1
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  0.142  0.858  0.500  1.0
  La  La1  1  0.638  0.362  0.000  1.0
  La  La2  1  0.359  0.641  0.000  1.0
  La  La3  1  0.862  0.138  0.500  1.0
  Mg  Mg4  1  0.004  0.996  0.000  1.0
  Al  Al5  1  0.497  0.503  0.500  1.0
  O  O6  1  0.824  0.176  0.000  1.0
  O  O7  1  0.338  0.662  0.500  1.0
  O  O8  1  0.670  0.330  0.500  1.0
  O  O9  1  0.175  0.825  0.000  1.0
  O  O10  1  0.737  0.742  0.744  1.0
  O  O11  1  0.258  0.263  0.256  1.0
  O  O12  1  0.258  0.263  0.744  1.0
  O  O13  1  0.737  0.742  0.256  1.0
[/CIF]
.
The material structure described by SrMgLa3AlO8 is (La,Ba)CuO4-derived structured and crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded in a 9-coordinate geometry to one O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(5) atoms. Mg(1) is bonded to one O(1), one O(4), and four equivalent O(5) atoms to form MgO6 octahedra that share corners with four equivalent Al(1)O6 octahedra. The corner-sharing octahedral tilt angles are 2°. There are three inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(1), two equivalent O(3), two equivalent O(4), and four equivalent O(5) atoms. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), and four equivalent O(5) atoms. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(2), and four equivalent O(5) atoms. Al(1) is bonded to one O(2), one O(3), and four equivalent O(5) atoms to form AlO6 octahedra that share corners with four equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 2°. There are five inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one La(1), two equivalent La(2), and two equivalent La(3) atoms to form distorted OLa5Mg octahedra that share  a cornercorner with one O(4)Sr2La3Mg octahedra, corners with four equivalent O(1)La5Mg octahedra, corners with twelve equivalent O(5)SrLa3MgAl octahedra, edges with two equivalent O(3)Sr2La3Al octahedra, edges with two equivalent O(4)Sr2La3Mg octahedra, edges with four equivalent O(2)SrLa4Al octahedra, and faces with four equivalent O(5)SrLa3MgAl octahedra. The corner-sharing octahedral tilt angles range from 0-53°. In the second O site, O(2) is bonded to one Sr(1), two equivalent La(2), two equivalent La(3), and one Al(1) atom to form distorted OSrLa4Al octahedra that share  a cornercorner with one O(3)Sr2La3Al octahedra, corners with four equivalent O(2)SrLa4Al octahedra, corners with twelve equivalent O(5)SrLa3MgAl octahedra, edges with two equivalent O(3)Sr2La3Al octahedra, edges with two equivalent O(4)Sr2La3Mg octahedra, edges with four equivalent O(1)La5Mg octahedra, and faces with four equivalent O(5)SrLa3MgAl octahedra. The corner-sharing octahedral tilt angles range from 0-53°. In the third O site, O(3) is bonded to two equivalent Sr(1), one La(3), two equivalent La(1), and one Al(1) atom to form distorted OSr2La3Al octahedra that share  a cornercorner with one O(2)SrLa4Al octahedra, corners with four equivalent O(3)Sr2La3Al octahedra, corners with twelve equivalent O(5)SrLa3MgAl octahedra, edges with two equivalent O(1)La5Mg octahedra, edges with two equivalent O(2)SrLa4Al octahedra, edges with four equivalent O(4)Sr2La3Mg octahedra, and faces with four equivalent O(5)SrLa3MgAl octahedra. The corner-sharing octahedral tilt angles range from 0-52°. In the fourth O site, O(4) is bonded to two equivalent Sr(1), one Mg(1), one La(2), and two equivalent La(1) atoms to form distorted OSr2La3Mg octahedra that share  a cornercorner with one O(1)La5Mg octahedra, corners with four equivalent O(4)Sr2La3Mg octahedra, corners with twelve equivalent O(5)SrLa3MgAl octahedra, edges with two equivalent O(1)La5Mg octahedra, edges with two equivalent O(2)SrLa4Al octahedra, edges with four equivalent O(3)Sr2La3Al octahedra, and faces with four equivalent O(5)SrLa3MgAl octahedra. The corner-sharing octahedral tilt angles range from 0-54°. In the fifth O site, O(5) is bonded to one Sr(1), one Mg(1), one La(1), one La(2), one La(3), and one Al(1) atom to form distorted OSrLa3MgAl octahedra that share corners with two equivalent O(5)SrLa3MgAl octahedra, corners with three equivalent O(1)La5Mg octahedra, corners with three equivalent O(3)Sr2La3Al octahedra, corners with three equivalent O(4)Sr2La3Mg octahedra, corners with three equivalent O(2)SrLa4Al octahedra, edges with two equivalent O(5)SrLa3MgAl octahedra,  a faceface with one O(1)La5Mg octahedra,  a faceface with one O(3)Sr2La3Al octahedra,  a faceface with one O(4)Sr2La3Mg octahedra,  a faceface with one O(2)SrLa4Al octahedra, and faces with four equivalent O(5)SrLa3MgAl octahedra. The corner-sharing octahedral tilt angles range from 0-54°. is represented by the CIF file [CIF]
data_SrLa3MgAlO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.882
_cell_length_b   6.882
_cell_length_c   5.437
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   133.236
_symmetry_Int_Tables_number   1
_cell_volume   187.635
_cell_formula_units_Z   1
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  0.142  0.858  0.500  1.0
  La  La1  1  0.638  0.362  0.000  1.0
  La  La2  1  0.359  0.641  0.000  1.0
  La  La3  1  0.862  0.138  0.500  1.0
  Mg  Mg4  1  0.004  0.996  0.000  1.0
  Al  Al5  1  0.497  0.503  0.500  1.0
  O  O6  1  0.824  0.176  0.000  1.0
  O  O7  1  0.338  0.662  0.500  1.0
  O  O8  1  0.670  0.330  0.500  1.0
  O  O9  1  0.175  0.825  0.000  1.0
  O  O10  1  0.737  0.742  0.744  1.0
  O  O11  1  0.258  0.263  0.256  1.0
  O  O12  1  0.258  0.263  0.744  1.0
  O  O13  1  0.737  0.742  0.256  1.0
[/CIF]
.