The material structure described by Sr6La2Ta3Al5O24 is (Cubic) Perovskite-derived structured and crystallizes in the trigonal R-3m space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to three equivalent O(2), three equivalent O(4), and six equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with three equivalent Sr(3)O12 cuboctahedra, corners with three equivalent La(1)O12 cuboctahedra, corners with six equivalent Sr(1)O12 cuboctahedra, faces with three equivalent Sr(2)O12 cuboctahedra, faces with three equivalent Sr(3)O12 cuboctahedra,  a faceface with one Ta(2)O6 octahedra,  a faceface with one Al(2)O6 octahedra, faces with three equivalent Ta(1)O6 octahedra, and faces with three equivalent Al(3)O6 octahedra. In the second Sr site, Sr(2) is bonded to three equivalent O(1), three equivalent O(3), and six equivalent O(2) atoms to form SrO12 cuboctahedra that share corners with three equivalent Sr(3)O12 cuboctahedra, corners with three equivalent La(1)O12 cuboctahedra, corners with six equivalent Sr(2)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, faces with three equivalent La(1)O12 cuboctahedra,  a faceface with one Al(1)O6 octahedra,  a faceface with one Al(3)O6 octahedra, faces with three equivalent Ta(1)O6 octahedra, and faces with three equivalent Al(2)O6 octahedra. In the third Sr site, Sr(3) is bonded to three equivalent O(3) and nine equivalent O(4) atoms to form SrO12 cuboctahedra that share corners with three equivalent Sr(1)O12 cuboctahedra, corners with three equivalent Sr(2)O12 cuboctahedra, corners with six equivalent Sr(3)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, faces with three equivalent Sr(3)O12 cuboctahedra,  a faceface with one Ta(1)O6 octahedra, faces with three equivalent Ta(2)O6 octahedra, and faces with four equivalent Al(3)O6 octahedra. La(1) is bonded to three equivalent O(2) and nine equivalent O(1) atoms to form LaO12 cuboctahedra that share corners with three equivalent Sr(1)O12 cuboctahedra, corners with three equivalent Sr(2)O12 cuboctahedra, corners with six equivalent La(1)O12 cuboctahedra, faces with three equivalent Sr(2)O12 cuboctahedra, faces with three equivalent La(1)O12 cuboctahedra,  a faceface with one Ta(1)O6 octahedra, faces with three equivalent Al(1)O6 octahedra, and faces with four equivalent Al(2)O6 octahedra. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to three equivalent O(2) and three equivalent O(3) atoms to form TaO6 octahedra that share corners with three equivalent Al(2)O6 octahedra, corners with three equivalent Al(3)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one La(1)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, and faces with three equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Ta site, Ta(2) is bonded to six equivalent O(4) atoms to form TaO6 octahedra that share corners with six equivalent Al(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with six equivalent Sr(3)O12 cuboctahedra. The corner-sharing octahedra are not tilted. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded to six equivalent O(1) atoms to form AlO6 octahedra that share corners with six equivalent Al(2)O6 octahedra, faces with two equivalent Sr(2)O12 cuboctahedra, and faces with six equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 2°. In the second Al site, Al(2) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form AlO6 octahedra that share corners with three equivalent Ta(1)O6 octahedra, corners with three equivalent Al(1)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra, faces with three equivalent Sr(2)O12 cuboctahedra, and faces with four equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-2°. In the third Al site, Al(3) is bonded to three equivalent O(3) and three equivalent O(4) atoms to form AlO6 octahedra that share corners with three equivalent Ta(1)O6 octahedra, corners with three equivalent Ta(2)O6 octahedra,  a faceface with one Sr(2)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, and faces with four equivalent Sr(3)O12 cuboctahedra. The corner-sharing octahedra are not tilted. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Sr(2), three equivalent La(1), one Al(1), and one Al(2) atom to form a mixture of distorted corner, face, and edge-sharing OSrLa3Al2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. In the second O site, O(2) is bonded in a distorted linear geometry to one Sr(1), two equivalent Sr(2), one La(1), one Ta(1), and one Al(2) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(2), one Sr(3), two equivalent Sr(1), one Ta(1), and one Al(3) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sr(1), three equivalent Sr(3), one Ta(2), and one Al(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr6La2Ta3Al5O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   18.334
_cell_length_b   18.334
_cell_length_c   18.334
_cell_angle_alpha   17.303
_cell_angle_beta   17.303
_cell_angle_gamma   17.303
_symmetry_Int_Tables_number   1
_cell_volume   475.734
_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  0.563  0.563  0.563  1.0
  Sr  Sr1  1  0.940  0.940  0.940  1.0
  Sr  Sr2  1  0.813  0.813  0.813  1.0
  Sr  Sr3  1  0.187  0.187  0.187  1.0
  Sr  Sr4  1  0.060  0.060  0.060  1.0
  Sr  Sr5  1  0.437  0.437  0.437  1.0
  La  La6  1  0.315  0.315  0.315  1.0
  La  La7  1  0.685  0.685  0.685  1.0
  Ta  Ta8  1  0.250  0.250  0.250  1.0
  Ta  Ta9  1  0.500  0.500  0.500  1.0
  Ta  Ta10  1  0.750  0.750  0.750  1.0
  Al  Al11  1  0.000  0.000  0.000  1.0
  Al  Al12  1  0.626  0.626  0.626  1.0
  Al  Al13  1  0.875  0.875  0.875  1.0
  Al  Al14  1  0.125  0.125  0.125  1.0
  Al  Al15  1  0.374  0.374  0.374  1.0
  O  O16  1  0.189  0.681  0.189  1.0
  O  O17  1  0.319  0.811  0.811  1.0
  O  O18  1  0.441  0.935  0.441  1.0
  O  O19  1  0.811  0.319  0.811  1.0
  O  O20  1  0.189  0.189  0.681  1.0
  O  O21  1  0.568  0.060  0.060  1.0
  O  O22  1  0.691  0.182  0.691  1.0
  O  O23  1  0.811  0.811  0.319  1.0
  O  O24  1  0.060  0.568  0.060  1.0
  O  O25  1  0.441  0.441  0.935  1.0
  O  O26  1  0.818  0.309  0.309  1.0
  O  O27  1  0.681  0.189  0.189  1.0
  O  O28  1  0.940  0.432  0.940  1.0
  O  O29  1  0.060  0.060  0.568  1.0
  O  O30  1  0.309  0.818  0.309  1.0
  O  O31  1  0.691  0.691  0.182  1.0
  O  O32  1  0.065  0.559  0.559  1.0
  O  O33  1  0.935  0.441  0.441  1.0
  O  O34  1  0.309  0.309  0.818  1.0
  O  O35  1  0.940  0.940  0.432  1.0
  O  O36  1  0.182  0.691  0.691  1.0
  O  O37  1  0.559  0.559  0.065  1.0
  O  O38  1  0.432  0.940  0.940  1.0
  O  O39  1  0.559  0.065  0.559  1.0
[/CIF]
.
The material structure described by Sr6La2Ta3Al5O24 is (Cubic) Perovskite-derived structured and crystallizes in the trigonal R-3m space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to three equivalent O(2), three equivalent O(4), and six equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with three equivalent Sr(3)O12 cuboctahedra, corners with three equivalent La(1)O12 cuboctahedra, corners with six equivalent Sr(1)O12 cuboctahedra, faces with three equivalent Sr(2)O12 cuboctahedra, faces with three equivalent Sr(3)O12 cuboctahedra,  a faceface with one Ta(2)O6 octahedra,  a faceface with one Al(2)O6 octahedra, faces with three equivalent Ta(1)O6 octahedra, and faces with three equivalent Al(3)O6 octahedra. In the second Sr site, Sr(2) is bonded to three equivalent O(1), three equivalent O(3), and six equivalent O(2) atoms to form SrO12 cuboctahedra that share corners with three equivalent Sr(3)O12 cuboctahedra, corners with three equivalent La(1)O12 cuboctahedra, corners with six equivalent Sr(2)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, faces with three equivalent La(1)O12 cuboctahedra,  a faceface with one Al(1)O6 octahedra,  a faceface with one Al(3)O6 octahedra, faces with three equivalent Ta(1)O6 octahedra, and faces with three equivalent Al(2)O6 octahedra. In the third Sr site, Sr(3) is bonded to three equivalent O(3) and nine equivalent O(4) atoms to form SrO12 cuboctahedra that share corners with three equivalent Sr(1)O12 cuboctahedra, corners with three equivalent Sr(2)O12 cuboctahedra, corners with six equivalent Sr(3)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, faces with three equivalent Sr(3)O12 cuboctahedra,  a faceface with one Ta(1)O6 octahedra, faces with three equivalent Ta(2)O6 octahedra, and faces with four equivalent Al(3)O6 octahedra. La(1) is bonded to three equivalent O(2) and nine equivalent O(1) atoms to form LaO12 cuboctahedra that share corners with three equivalent Sr(1)O12 cuboctahedra, corners with three equivalent Sr(2)O12 cuboctahedra, corners with six equivalent La(1)O12 cuboctahedra, faces with three equivalent Sr(2)O12 cuboctahedra, faces with three equivalent La(1)O12 cuboctahedra,  a faceface with one Ta(1)O6 octahedra, faces with three equivalent Al(1)O6 octahedra, and faces with four equivalent Al(2)O6 octahedra. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to three equivalent O(2) and three equivalent O(3) atoms to form TaO6 octahedra that share corners with three equivalent Al(2)O6 octahedra, corners with three equivalent Al(3)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one La(1)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, and faces with three equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the second Ta site, Ta(2) is bonded to six equivalent O(4) atoms to form TaO6 octahedra that share corners with six equivalent Al(3)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with six equivalent Sr(3)O12 cuboctahedra. The corner-sharing octahedra are not tilted. There are three inequivalent Al sites. In the first Al site, Al(1) is bonded to six equivalent O(1) atoms to form AlO6 octahedra that share corners with six equivalent Al(2)O6 octahedra, faces with two equivalent Sr(2)O12 cuboctahedra, and faces with six equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 2°. In the second Al site, Al(2) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form AlO6 octahedra that share corners with three equivalent Ta(1)O6 octahedra, corners with three equivalent Al(1)O6 octahedra,  a faceface with one Sr(1)O12 cuboctahedra, faces with three equivalent Sr(2)O12 cuboctahedra, and faces with four equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 1-2°. In the third Al site, Al(3) is bonded to three equivalent O(3) and three equivalent O(4) atoms to form AlO6 octahedra that share corners with three equivalent Ta(1)O6 octahedra, corners with three equivalent Ta(2)O6 octahedra,  a faceface with one Sr(2)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, and faces with four equivalent Sr(3)O12 cuboctahedra. The corner-sharing octahedra are not tilted. There are four inequivalent O sites. In the first O site, O(1) is bonded to one Sr(2), three equivalent La(1), one Al(1), and one Al(2) atom to form a mixture of distorted corner, face, and edge-sharing OSrLa3Al2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. In the second O site, O(2) is bonded in a distorted linear geometry to one Sr(1), two equivalent Sr(2), one La(1), one Ta(1), and one Al(2) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(2), one Sr(3), two equivalent Sr(1), one Ta(1), and one Al(3) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sr(1), three equivalent Sr(3), one Ta(2), and one Al(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr6La2Ta3Al5O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   18.334
_cell_length_b   18.334
_cell_length_c   18.334
_cell_angle_alpha   17.303
_cell_angle_beta   17.303
_cell_angle_gamma   17.303
_symmetry_Int_Tables_number   1
_cell_volume   475.734
_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  0.563  0.563  0.563  1.0
  Sr  Sr1  1  0.940  0.940  0.940  1.0
  Sr  Sr2  1  0.813  0.813  0.813  1.0
  Sr  Sr3  1  0.187  0.187  0.187  1.0
  Sr  Sr4  1  0.060  0.060  0.060  1.0
  Sr  Sr5  1  0.437  0.437  0.437  1.0
  La  La6  1  0.315  0.315  0.315  1.0
  La  La7  1  0.685  0.685  0.685  1.0
  Ta  Ta8  1  0.250  0.250  0.250  1.0
  Ta  Ta9  1  0.500  0.500  0.500  1.0
  Ta  Ta10  1  0.750  0.750  0.750  1.0
  Al  Al11  1  0.000  0.000  0.000  1.0
  Al  Al12  1  0.626  0.626  0.626  1.0
  Al  Al13  1  0.875  0.875  0.875  1.0
  Al  Al14  1  0.125  0.125  0.125  1.0
  Al  Al15  1  0.374  0.374  0.374  1.0
  O  O16  1  0.189  0.681  0.189  1.0
  O  O17  1  0.319  0.811  0.811  1.0
  O  O18  1  0.441  0.935  0.441  1.0
  O  O19  1  0.811  0.319  0.811  1.0
  O  O20  1  0.189  0.189  0.681  1.0
  O  O21  1  0.568  0.060  0.060  1.0
  O  O22  1  0.691  0.182  0.691  1.0
  O  O23  1  0.811  0.811  0.319  1.0
  O  O24  1  0.060  0.568  0.060  1.0
  O  O25  1  0.441  0.441  0.935  1.0
  O  O26  1  0.818  0.309  0.309  1.0
  O  O27  1  0.681  0.189  0.189  1.0
  O  O28  1  0.940  0.432  0.940  1.0
  O  O29  1  0.060  0.060  0.568  1.0
  O  O30  1  0.309  0.818  0.309  1.0
  O  O31  1  0.691  0.691  0.182  1.0
  O  O32  1  0.065  0.559  0.559  1.0
  O  O33  1  0.935  0.441  0.441  1.0
  O  O34  1  0.309  0.309  0.818  1.0
  O  O35  1  0.940  0.940  0.432  1.0
  O  O36  1  0.182  0.691  0.691  1.0
  O  O37  1  0.559  0.559  0.065  1.0
  O  O38  1  0.432  0.940  0.940  1.0
  O  O39  1  0.559  0.065  0.559  1.0
[/CIF]
.