The structure described by Sr4LaTi5O15 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic C2/m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(4), one O(6), two equivalent O(1), two equivalent O(2), two equivalent O(5), and four equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with two equivalent La(1)O12 cuboctahedra, corners with five equivalent Sr(1)O12 cuboctahedra, corners with five equivalent Sr(2)O12 cuboctahedra,  a faceface with one Sr(1)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with three equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Ti(3)O6 octahedra, faces with three equivalent Ti(1)O6 octahedra, and faces with three equivalent Ti(2)O6 octahedra. In the second Sr site, Sr(2) is bonded to one O(5), two equivalent O(2), two equivalent O(3), three equivalent O(4), and four equivalent O(1) atoms to form SrO12 cuboctahedra that share corners with three equivalent La(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, corners with five equivalent Sr(1)O12 cuboctahedra,  a faceface with one La(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra,  a faceface with one Ti(3)O6 octahedra, faces with three equivalent Ti(2)O6 octahedra, and faces with four equivalent Ti(1)O6 octahedra. La(1) is bonded to two equivalent O(5), two equivalent O(6), four equivalent O(1), and four equivalent O(3) atoms to form LaO12 cuboctahedra that share corners with two equivalent La(1)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, corners with six equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ti(1)O6 octahedra, faces with two equivalent Ti(3)O6 octahedra, and faces with four equivalent Ti(2)O6 octahedra. There are three inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(4), one O(5), two equivalent O(1), and two equivalent O(2) atoms to form TiO6 octahedra that share  a cornercorner with one Ti(3)O6 octahedra, corners with two equivalent Ti(1)O6 octahedra, corners with three equivalent Ti(2)O6 octahedra,  a faceface with one La(1)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the second Ti site, Ti(2) is bonded to one O(4), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form TiO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra, corners with two equivalent Ti(3)O6 octahedra, corners with three equivalent Ti(1)O6 octahedra, faces with two equivalent 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 0-3°. In the third Ti site, Ti(3) is bonded to two equivalent O(5) and four equivalent O(3) atoms to form TiO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with four equivalent Ti(2)O6 octahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with four equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 3°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), two equivalent Sr(2), one La(1), one Ti(1), and one Ti(2) atom. In the second O site, O(2) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ti(1) atoms. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one La(1), one Ti(2), and one Ti(3) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sr(1), three equivalent Sr(2), one Ti(1), and one Ti(2) atom. In the fifth O site, O(5) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one La(1), one Ti(1), and one Ti(3) atom. In the sixth O site, O(6) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent La(1), and two equivalent Ti(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr4LaTi5O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.834
_cell_length_b   8.834
_cell_length_c   6.842
_cell_angle_alpha   75.046
_cell_angle_beta   75.046
_cell_angle_gamma   36.892
_symmetry_Int_Tables_number   1
_cell_volume   308.396
_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  0.600  0.600  0.600  1.0
  Sr  Sr1  1  0.200  0.200  0.200  1.0
  Sr  Sr2  1  0.800  0.800  0.800  1.0
  Sr  Sr3  1  0.400  0.400  0.400  1.0
  La  La4  1  0.000  0.000  0.000  1.0
  Ti  Ti5  1  0.201  0.201  0.698  1.0
  Ti  Ti6  1  0.799  0.799  0.302  1.0
  Ti  Ti7  1  0.399  0.399  0.900  1.0
  Ti  Ti8  1  0.000  0.000  0.500  1.0
  Ti  Ti9  1  0.601  0.601  0.100  1.0
  O  O10  1  0.394  0.901  0.902  1.0
  O  O11  1  0.000  0.500  0.500  1.0
  O  O12  1  0.606  0.099  0.098  1.0
  O  O13  1  0.197  0.705  0.705  1.0
  O  O14  1  0.803  0.295  0.295  1.0
  O  O15  1  0.300  0.300  0.801  1.0
  O  O16  1  0.902  0.902  0.394  1.0
  O  O17  1  0.500  0.500  0.000  1.0
  O  O18  1  0.098  0.098  0.606  1.0
  O  O19  1  0.700  0.700  0.199  1.0
  O  O20  1  0.500  0.000  0.500  1.0
  O  O21  1  0.099  0.606  0.098  1.0
  O  O22  1  0.705  0.197  0.705  1.0
  O  O23  1  0.295  0.803  0.295  1.0
  O  O24  1  0.901  0.394  0.902  1.0
[/CIF]
.
The structure described by Sr4LaTi5O15 is (Cubic) Perovskite-derived structured and crystallizes in the monoclinic C2/m space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(4), one O(6), two equivalent O(1), two equivalent O(2), two equivalent O(5), and four equivalent O(3) atoms to form SrO12 cuboctahedra that share corners with two equivalent La(1)O12 cuboctahedra, corners with five equivalent Sr(1)O12 cuboctahedra, corners with five equivalent Sr(2)O12 cuboctahedra,  a faceface with one Sr(1)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with three equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Ti(3)O6 octahedra, faces with three equivalent Ti(1)O6 octahedra, and faces with three equivalent Ti(2)O6 octahedra. In the second Sr site, Sr(2) is bonded to one O(5), two equivalent O(2), two equivalent O(3), three equivalent O(4), and four equivalent O(1) atoms to form SrO12 cuboctahedra that share corners with three equivalent La(1)O12 cuboctahedra, corners with four equivalent Sr(2)O12 cuboctahedra, corners with five equivalent Sr(1)O12 cuboctahedra,  a faceface with one La(1)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra,  a faceface with one Ti(3)O6 octahedra, faces with three equivalent Ti(2)O6 octahedra, and faces with four equivalent Ti(1)O6 octahedra. La(1) is bonded to two equivalent O(5), two equivalent O(6), four equivalent O(1), and four equivalent O(3) atoms to form LaO12 cuboctahedra that share corners with two equivalent La(1)O12 cuboctahedra, corners with four equivalent Sr(1)O12 cuboctahedra, corners with six equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ti(1)O6 octahedra, faces with two equivalent Ti(3)O6 octahedra, and faces with four equivalent Ti(2)O6 octahedra. There are three inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(4), one O(5), two equivalent O(1), and two equivalent O(2) atoms to form TiO6 octahedra that share  a cornercorner with one Ti(3)O6 octahedra, corners with two equivalent Ti(1)O6 octahedra, corners with three equivalent Ti(2)O6 octahedra,  a faceface with one La(1)O12 cuboctahedra, faces with three equivalent Sr(1)O12 cuboctahedra, and faces with four equivalent Sr(2)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the second Ti site, Ti(2) is bonded to one O(4), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form TiO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra, corners with two equivalent Ti(3)O6 octahedra, corners with three equivalent Ti(1)O6 octahedra, faces with two equivalent 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 0-3°. In the third Ti site, Ti(3) is bonded to two equivalent O(5) and four equivalent O(3) atoms to form TiO6 octahedra that share corners with two equivalent Ti(1)O6 octahedra, corners with four equivalent Ti(2)O6 octahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, and faces with four equivalent Sr(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 3°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), two equivalent Sr(2), one La(1), one Ti(1), and one Ti(2) atom. In the second O site, O(2) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Ti(1) atoms. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one La(1), one Ti(2), and one Ti(3) atom. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sr(1), three equivalent Sr(2), one Ti(1), and one Ti(2) atom. In the fifth O site, O(5) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one La(1), one Ti(1), and one Ti(3) atom. In the sixth O site, O(6) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent La(1), and two equivalent Ti(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr4LaTi5O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.834
_cell_length_b   8.834
_cell_length_c   6.842
_cell_angle_alpha   75.046
_cell_angle_beta   75.046
_cell_angle_gamma   36.892
_symmetry_Int_Tables_number   1
_cell_volume   308.396
_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  0.600  0.600  0.600  1.0
  Sr  Sr1  1  0.200  0.200  0.200  1.0
  Sr  Sr2  1  0.800  0.800  0.800  1.0
  Sr  Sr3  1  0.400  0.400  0.400  1.0
  La  La4  1  0.000  0.000  0.000  1.0
  Ti  Ti5  1  0.201  0.201  0.698  1.0
  Ti  Ti6  1  0.799  0.799  0.302  1.0
  Ti  Ti7  1  0.399  0.399  0.900  1.0
  Ti  Ti8  1  0.000  0.000  0.500  1.0
  Ti  Ti9  1  0.601  0.601  0.100  1.0
  O  O10  1  0.394  0.901  0.902  1.0
  O  O11  1  0.000  0.500  0.500  1.0
  O  O12  1  0.606  0.099  0.098  1.0
  O  O13  1  0.197  0.705  0.705  1.0
  O  O14  1  0.803  0.295  0.295  1.0
  O  O15  1  0.300  0.300  0.801  1.0
  O  O16  1  0.902  0.902  0.394  1.0
  O  O17  1  0.500  0.500  0.000  1.0
  O  O18  1  0.098  0.098  0.606  1.0
  O  O19  1  0.700  0.700  0.199  1.0
  O  O20  1  0.500  0.000  0.500  1.0
  O  O21  1  0.099  0.606  0.098  1.0
  O  O22  1  0.705  0.197  0.705  1.0
  O  O23  1  0.295  0.803  0.295  1.0
  O  O24  1  0.901  0.394  0.902  1.0
[/CIF]
.