The compound described by Ba3Sr5Ti8O24 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(4) atoms to form BaO12 cuboctahedra that share corners with four equivalent Ba(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, corners with four equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Ba(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. In the second Ba site, Ba(2) is bonded to four equivalent O(4) and eight equivalent O(1) atoms to form BaO12 cuboctahedra that share corners with four equivalent Sr(4)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Ba(1)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ba(2)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(4)O12 cuboctahedra, faces with two equivalent Ba(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. In the second Sr site, Sr(2) is bonded to four equivalent O(3) and eight equivalent O(1) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(3)O12 cuboctahedra, corners with eight equivalent Ba(1)O12 cuboctahedra, faces with two equivalent Ba(2)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. In the third Sr site, Sr(3) is bonded to four equivalent O(3) and eight equivalent O(2) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, corners with eight equivalent Ba(1)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. In the fourth Sr site, Sr(4) is bonded to four equivalent O(4) and eight equivalent O(2) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ba(2)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with four equivalent Ba(1)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. Ti(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form TiO6 octahedra that share corners with six equivalent Ti(1)O6 octahedra,  a faceface with one Ba(2)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra, faces with two equivalent Ba(1)O12 cuboctahedra, and faces with two equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Ba(1), one Ba(2), one Sr(1), one Sr(2), and two equivalent Ti(1) atoms. In the second O site, O(2) is bonded in a distorted linear geometry to one Ba(1), one Sr(1), one Sr(3), one Sr(4), and two equivalent Ti(1) atoms. 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), and two equivalent Ti(1) atoms. In the fourth O site, O(4) is bonded to one Ba(2), two equivalent Ba(1), one Sr(4), and two equivalent Ti(1) atoms to form a mixture of distorted edge and corner-sharing OBa3SrTi2 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF file [CIF]
data_Ba3Sr5Ti8O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.958
_cell_length_b   7.958
_cell_length_c   7.956
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   503.887
_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
  Ba  Ba0  1  0.500  0.000  0.000  1.0
  Ba  Ba1  1  0.000  0.000  0.000  1.0
  Ba  Ba2  1  0.000  0.500  0.000  1.0
  Sr  Sr3  1  0.500  0.000  0.500  1.0
  Sr  Sr4  1  0.000  0.000  0.500  1.0
  Sr  Sr5  1  0.500  0.500  0.500  1.0
  Sr  Sr6  1  0.000  0.500  0.500  1.0
  Sr  Sr7  1  0.500  0.500  0.000  1.0
  Ti  Ti8  1  0.749  0.251  0.746  1.0
  Ti  Ti9  1  0.251  0.251  0.746  1.0
  Ti  Ti10  1  0.749  0.251  0.254  1.0
  Ti  Ti11  1  0.251  0.251  0.254  1.0
  Ti  Ti12  1  0.749  0.749  0.746  1.0
  Ti  Ti13  1  0.251  0.749  0.746  1.0
  Ti  Ti14  1  0.749  0.749  0.254  1.0
  Ti  Ti15  1  0.251  0.749  0.254  1.0
  O  O16  1  0.749  0.000  0.742  1.0
  O  O17  1  0.251  0.000  0.742  1.0
  O  O18  1  0.749  0.000  0.258  1.0
  O  O19  1  0.251  0.000  0.258  1.0
  O  O20  1  0.747  0.500  0.744  1.0
  O  O21  1  0.253  0.500  0.744  1.0
  O  O22  1  0.747  0.500  0.256  1.0
  O  O23  1  0.253  0.500  0.256  1.0
  O  O24  1  0.749  0.251  0.500  1.0
  O  O25  1  0.251  0.251  0.500  1.0
  O  O26  1  0.746  0.254  0.000  1.0
  O  O27  1  0.254  0.254  0.000  1.0
  O  O28  1  0.749  0.749  0.500  1.0
  O  O29  1  0.251  0.749  0.500  1.0
  O  O30  1  0.746  0.746  0.000  1.0
  O  O31  1  0.254  0.746  0.000  1.0
  O  O32  1  0.500  0.253  0.744  1.0
  O  O33  1  0.000  0.251  0.742  1.0
  O  O34  1  0.500  0.253  0.256  1.0
  O  O35  1  0.000  0.251  0.258  1.0
  O  O36  1  0.500  0.747  0.744  1.0
  O  O37  1  0.000  0.749  0.742  1.0
  O  O38  1  0.500  0.747  0.256  1.0
  O  O39  1  0.000  0.749  0.258  1.0
[/CIF]
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The compound described by Ba3Sr5Ti8O24 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(4) atoms to form BaO12 cuboctahedra that share corners with four equivalent Ba(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, corners with four equivalent Sr(3)O12 cuboctahedra, faces with two equivalent Ba(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. In the second Ba site, Ba(2) is bonded to four equivalent O(4) and eight equivalent O(1) atoms to form BaO12 cuboctahedra that share corners with four equivalent Sr(4)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Ba(1)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to four equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ba(2)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Sr(4)O12 cuboctahedra, faces with two equivalent Ba(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. In the second Sr site, Sr(2) is bonded to four equivalent O(3) and eight equivalent O(1) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(3)O12 cuboctahedra, corners with eight equivalent Ba(1)O12 cuboctahedra, faces with two equivalent Ba(2)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. In the third Sr site, Sr(3) is bonded to four equivalent O(3) and eight equivalent O(2) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, corners with eight equivalent Ba(1)O12 cuboctahedra, faces with two equivalent Sr(4)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. In the fourth Sr site, Sr(4) is bonded to four equivalent O(4) and eight equivalent O(2) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ba(2)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with four equivalent Ba(1)O12 cuboctahedra, and faces with eight equivalent Ti(1)O6 octahedra. Ti(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form TiO6 octahedra that share corners with six equivalent Ti(1)O6 octahedra,  a faceface with one Ba(2)O12 cuboctahedra,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Sr(4)O12 cuboctahedra, faces with two equivalent Ba(1)O12 cuboctahedra, and faces with two equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Ba(1), one Ba(2), one Sr(1), one Sr(2), and two equivalent Ti(1) atoms. In the second O site, O(2) is bonded in a distorted linear geometry to one Ba(1), one Sr(1), one Sr(3), one Sr(4), and two equivalent Ti(1) atoms. 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), and two equivalent Ti(1) atoms. In the fourth O site, O(4) is bonded to one Ba(2), two equivalent Ba(1), one Sr(4), and two equivalent Ti(1) atoms to form a mixture of distorted edge and corner-sharing OBa3SrTi2 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF file [CIF]
data_Ba3Sr5Ti8O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.958
_cell_length_b   7.958
_cell_length_c   7.956
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   503.887
_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
  Ba  Ba0  1  0.500  0.000  0.000  1.0
  Ba  Ba1  1  0.000  0.000  0.000  1.0
  Ba  Ba2  1  0.000  0.500  0.000  1.0
  Sr  Sr3  1  0.500  0.000  0.500  1.0
  Sr  Sr4  1  0.000  0.000  0.500  1.0
  Sr  Sr5  1  0.500  0.500  0.500  1.0
  Sr  Sr6  1  0.000  0.500  0.500  1.0
  Sr  Sr7  1  0.500  0.500  0.000  1.0
  Ti  Ti8  1  0.749  0.251  0.746  1.0
  Ti  Ti9  1  0.251  0.251  0.746  1.0
  Ti  Ti10  1  0.749  0.251  0.254  1.0
  Ti  Ti11  1  0.251  0.251  0.254  1.0
  Ti  Ti12  1  0.749  0.749  0.746  1.0
  Ti  Ti13  1  0.251  0.749  0.746  1.0
  Ti  Ti14  1  0.749  0.749  0.254  1.0
  Ti  Ti15  1  0.251  0.749  0.254  1.0
  O  O16  1  0.749  0.000  0.742  1.0
  O  O17  1  0.251  0.000  0.742  1.0
  O  O18  1  0.749  0.000  0.258  1.0
  O  O19  1  0.251  0.000  0.258  1.0
  O  O20  1  0.747  0.500  0.744  1.0
  O  O21  1  0.253  0.500  0.744  1.0
  O  O22  1  0.747  0.500  0.256  1.0
  O  O23  1  0.253  0.500  0.256  1.0
  O  O24  1  0.749  0.251  0.500  1.0
  O  O25  1  0.251  0.251  0.500  1.0
  O  O26  1  0.746  0.254  0.000  1.0
  O  O27  1  0.254  0.254  0.000  1.0
  O  O28  1  0.749  0.749  0.500  1.0
  O  O29  1  0.251  0.749  0.500  1.0
  O  O30  1  0.746  0.746  0.000  1.0
  O  O31  1  0.254  0.746  0.000  1.0
  O  O32  1  0.500  0.253  0.744  1.0
  O  O33  1  0.000  0.251  0.742  1.0
  O  O34  1  0.500  0.253  0.256  1.0
  O  O35  1  0.000  0.251  0.258  1.0
  O  O36  1  0.500  0.747  0.744  1.0
  O  O37  1  0.000  0.749  0.742  1.0
  O  O38  1  0.500  0.747  0.256  1.0
  O  O39  1  0.000  0.749  0.258  1.0
[/CIF]
.