The material described by Sm3La5Cr8O24 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to four equivalent O(2), four equivalent O(3), and four equivalent O(4) atoms to form SmO12 cuboctahedra that share corners with four equivalent Sm(1)O12 cuboctahedra, corners with four equivalent La(2)O12 cuboctahedra, corners with four equivalent La(3)O12 cuboctahedra, faces with two equivalent Sm(2)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with two equivalent La(4)O12 cuboctahedra, and faces with eight equivalent Cr(1)O6 octahedra. In the second Sm site, Sm(2) is bonded to four equivalent O(2) and eight equivalent O(3) atoms to form SmO12 cuboctahedra that share corners with four equivalent La(4)O12 cuboctahedra, corners with eight equivalent La(1)O12 cuboctahedra, faces with two equivalent La(2)O12 cuboctahedra, faces with four equivalent Sm(1)O12 cuboctahedra, and faces with eight equivalent Cr(1)O6 octahedra. There are four inequivalent La sites. In the first La site, La(1) is bonded to four equivalent O(1), four equivalent O(3), and four equivalent O(4) atoms to form LaO12 cuboctahedra that share corners with four equivalent Sm(2)O12 cuboctahedra, corners with four equivalent La(1)O12 cuboctahedra, corners with four equivalent La(4)O12 cuboctahedra, faces with two equivalent Sm(1)O12 cuboctahedra, faces with two equivalent La(2)O12 cuboctahedra, faces with two equivalent La(3)O12 cuboctahedra, and faces with eight equivalent Cr(1)O6 octahedra. In the second La site, La(2) is bonded to four equivalent O(1) and eight equivalent O(3) atoms to form LaO12 cuboctahedra that share corners with four equivalent La(3)O12 cuboctahedra, corners with eight equivalent Sm(1)O12 cuboctahedra, faces with two equivalent Sm(2)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra, and faces with eight equivalent Cr(1)O6 octahedra. In the third La site, La(3) is bonded to four equivalent O(1) and eight equivalent O(4) atoms to form LaO12 cuboctahedra that share corners with four equivalent La(2)O12 cuboctahedra, corners with eight equivalent Sm(1)O12 cuboctahedra, faces with two equivalent La(4)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra, and faces with eight equivalent Cr(1)O6 octahedra. In the fourth La site, La(4) is bonded to four equivalent O(2) and eight equivalent O(4) atoms to form LaO12 cuboctahedra that share corners with four equivalent Sm(2)O12 cuboctahedra, corners with eight equivalent La(1)O12 cuboctahedra, faces with two equivalent La(3)O12 cuboctahedra, faces with four equivalent Sm(1)O12 cuboctahedra, and faces with eight equivalent Cr(1)O6 octahedra. Cr(1) is bonded to one O(1), one O(2), two equivalent O(3), and two equivalent O(4) atoms to form CrO6 octahedra that share corners with six equivalent Cr(1)O6 octahedra,  a faceface with one Sm(2)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(3)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra, faces with two equivalent Sm(1)O12 cuboctahedra, and faces with two equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one La(2), one La(3), two equivalent La(1), and two equivalent Cr(1) atoms. In the second O site, O(2) is bonded in a distorted linear geometry to one Sm(2), two equivalent Sm(1), one La(4), and two equivalent Cr(1) atoms. In the third O site, O(3) is bonded in a distorted linear geometry to one Sm(1), one Sm(2), one La(1), one La(2), and two equivalent Cr(1) atoms. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sm(1), one La(1), one La(3), one La(4), and two equivalent Cr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_La5Sm3Cr8O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.841
_cell_length_b   7.841
_cell_length_c   7.841
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   482.153
_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
  La  La0  1  0.000  0.500  0.000  1.0
  La  La1  1  0.500  0.500  0.000  1.0
  La  La2  1  0.000  0.000  0.000  1.0
  La  La3  1  0.500  0.000  0.000  1.0
  La  La4  1  0.000  0.000  0.500  1.0
  Sm  Sm5  1  0.000  0.500  0.500  1.0
  Sm  Sm6  1  0.500  0.500  0.500  1.0
  Sm  Sm7  1  0.500  0.000  0.500  1.0
  Cr  Cr8  1  0.750  0.250  0.749  1.0
  Cr  Cr9  1  0.250  0.250  0.749  1.0
  Cr  Cr10  1  0.750  0.750  0.749  1.0
  Cr  Cr11  1  0.250  0.750  0.749  1.0
  Cr  Cr12  1  0.750  0.250  0.251  1.0
  Cr  Cr13  1  0.250  0.250  0.251  1.0
  Cr  Cr14  1  0.750  0.750  0.251  1.0
  Cr  Cr15  1  0.250  0.750  0.251  1.0
  O  O16  1  0.750  0.250  0.000  1.0
  O  O17  1  0.250  0.250  0.000  1.0
  O  O18  1  0.750  0.750  0.000  1.0
  O  O19  1  0.250  0.750  0.000  1.0
  O  O20  1  0.749  0.251  0.500  1.0
  O  O21  1  0.251  0.251  0.500  1.0
  O  O22  1  0.749  0.749  0.500  1.0
  O  O23  1  0.251  0.749  0.500  1.0
  O  O24  1  0.750  0.500  0.748  1.0
  O  O25  1  0.250  0.500  0.748  1.0
  O  O26  1  0.749  0.000  0.749  1.0
  O  O27  1  0.251  0.000  0.749  1.0
  O  O28  1  0.750  0.500  0.252  1.0
  O  O29  1  0.250  0.500  0.252  1.0
  O  O30  1  0.749  0.000  0.251  1.0
  O  O31  1  0.251  0.000  0.251  1.0
  O  O32  1  0.000  0.251  0.749  1.0
  O  O33  1  0.500  0.250  0.748  1.0
  O  O34  1  0.000  0.749  0.749  1.0
  O  O35  1  0.500  0.750  0.748  1.0
  O  O36  1  0.000  0.251  0.251  1.0
  O  O37  1  0.500  0.250  0.252  1.0
  O  O38  1  0.000  0.749  0.251  1.0
  O  O39  1  0.500  0.750  0.252  1.0
[/CIF]
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The material described by Sm3La5Cr8O24 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to four equivalent O(2), four equivalent O(3), and four equivalent O(4) atoms to form SmO12 cuboctahedra that share corners with four equivalent Sm(1)O12 cuboctahedra, corners with four equivalent La(2)O12 cuboctahedra, corners with four equivalent La(3)O12 cuboctahedra, faces with two equivalent Sm(2)O12 cuboctahedra, faces with two equivalent La(1)O12 cuboctahedra, faces with two equivalent La(4)O12 cuboctahedra, and faces with eight equivalent Cr(1)O6 octahedra. In the second Sm site, Sm(2) is bonded to four equivalent O(2) and eight equivalent O(3) atoms to form SmO12 cuboctahedra that share corners with four equivalent La(4)O12 cuboctahedra, corners with eight equivalent La(1)O12 cuboctahedra, faces with two equivalent La(2)O12 cuboctahedra, faces with four equivalent Sm(1)O12 cuboctahedra, and faces with eight equivalent Cr(1)O6 octahedra. There are four inequivalent La sites. In the first La site, La(1) is bonded to four equivalent O(1), four equivalent O(3), and four equivalent O(4) atoms to form LaO12 cuboctahedra that share corners with four equivalent Sm(2)O12 cuboctahedra, corners with four equivalent La(1)O12 cuboctahedra, corners with four equivalent La(4)O12 cuboctahedra, faces with two equivalent Sm(1)O12 cuboctahedra, faces with two equivalent La(2)O12 cuboctahedra, faces with two equivalent La(3)O12 cuboctahedra, and faces with eight equivalent Cr(1)O6 octahedra. In the second La site, La(2) is bonded to four equivalent O(1) and eight equivalent O(3) atoms to form LaO12 cuboctahedra that share corners with four equivalent La(3)O12 cuboctahedra, corners with eight equivalent Sm(1)O12 cuboctahedra, faces with two equivalent Sm(2)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra, and faces with eight equivalent Cr(1)O6 octahedra. In the third La site, La(3) is bonded to four equivalent O(1) and eight equivalent O(4) atoms to form LaO12 cuboctahedra that share corners with four equivalent La(2)O12 cuboctahedra, corners with eight equivalent Sm(1)O12 cuboctahedra, faces with two equivalent La(4)O12 cuboctahedra, faces with four equivalent La(1)O12 cuboctahedra, and faces with eight equivalent Cr(1)O6 octahedra. In the fourth La site, La(4) is bonded to four equivalent O(2) and eight equivalent O(4) atoms to form LaO12 cuboctahedra that share corners with four equivalent Sm(2)O12 cuboctahedra, corners with eight equivalent La(1)O12 cuboctahedra, faces with two equivalent La(3)O12 cuboctahedra, faces with four equivalent Sm(1)O12 cuboctahedra, and faces with eight equivalent Cr(1)O6 octahedra. Cr(1) is bonded to one O(1), one O(2), two equivalent O(3), and two equivalent O(4) atoms to form CrO6 octahedra that share corners with six equivalent Cr(1)O6 octahedra,  a faceface with one Sm(2)O12 cuboctahedra,  a faceface with one La(2)O12 cuboctahedra,  a faceface with one La(3)O12 cuboctahedra,  a faceface with one La(4)O12 cuboctahedra, faces with two equivalent Sm(1)O12 cuboctahedra, and faces with two equivalent La(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-1°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one La(2), one La(3), two equivalent La(1), and two equivalent Cr(1) atoms. In the second O site, O(2) is bonded in a distorted linear geometry to one Sm(2), two equivalent Sm(1), one La(4), and two equivalent Cr(1) atoms. In the third O site, O(3) is bonded in a distorted linear geometry to one Sm(1), one Sm(2), one La(1), one La(2), and two equivalent Cr(1) atoms. In the fourth O site, O(4) is bonded in a distorted linear geometry to one Sm(1), one La(1), one La(3), one La(4), and two equivalent Cr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_La5Sm3Cr8O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.841
_cell_length_b   7.841
_cell_length_c   7.841
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   482.153
_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
  La  La0  1  0.000  0.500  0.000  1.0
  La  La1  1  0.500  0.500  0.000  1.0
  La  La2  1  0.000  0.000  0.000  1.0
  La  La3  1  0.500  0.000  0.000  1.0
  La  La4  1  0.000  0.000  0.500  1.0
  Sm  Sm5  1  0.000  0.500  0.500  1.0
  Sm  Sm6  1  0.500  0.500  0.500  1.0
  Sm  Sm7  1  0.500  0.000  0.500  1.0
  Cr  Cr8  1  0.750  0.250  0.749  1.0
  Cr  Cr9  1  0.250  0.250  0.749  1.0
  Cr  Cr10  1  0.750  0.750  0.749  1.0
  Cr  Cr11  1  0.250  0.750  0.749  1.0
  Cr  Cr12  1  0.750  0.250  0.251  1.0
  Cr  Cr13  1  0.250  0.250  0.251  1.0
  Cr  Cr14  1  0.750  0.750  0.251  1.0
  Cr  Cr15  1  0.250  0.750  0.251  1.0
  O  O16  1  0.750  0.250  0.000  1.0
  O  O17  1  0.250  0.250  0.000  1.0
  O  O18  1  0.750  0.750  0.000  1.0
  O  O19  1  0.250  0.750  0.000  1.0
  O  O20  1  0.749  0.251  0.500  1.0
  O  O21  1  0.251  0.251  0.500  1.0
  O  O22  1  0.749  0.749  0.500  1.0
  O  O23  1  0.251  0.749  0.500  1.0
  O  O24  1  0.750  0.500  0.748  1.0
  O  O25  1  0.250  0.500  0.748  1.0
  O  O26  1  0.749  0.000  0.749  1.0
  O  O27  1  0.251  0.000  0.749  1.0
  O  O28  1  0.750  0.500  0.252  1.0
  O  O29  1  0.250  0.500  0.252  1.0
  O  O30  1  0.749  0.000  0.251  1.0
  O  O31  1  0.251  0.000  0.251  1.0
  O  O32  1  0.000  0.251  0.749  1.0
  O  O33  1  0.500  0.250  0.748  1.0
  O  O34  1  0.000  0.749  0.749  1.0
  O  O35  1  0.500  0.750  0.748  1.0
  O  O36  1  0.000  0.251  0.251  1.0
  O  O37  1  0.500  0.250  0.252  1.0
  O  O38  1  0.000  0.749  0.251  1.0
  O  O39  1  0.500  0.750  0.252  1.0
[/CIF]
.