The structure described by Sr7CaMnFe7O24 is (Cubic) Perovskite-derived structured and crystallizes in the trigonal R3m space group. There are three 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(3), two equivalent O(5), and four equivalent O(2) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(3)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(3)O6 octahedra, faces with three equivalent Fe(1)O6 octahedra, and faces with three equivalent Fe(2)O6 octahedra. In the second Sr site, Sr(2) is bonded to one O(1), one O(3), two equivalent O(2), two equivalent O(4), two equivalent O(6), and four equivalent O(5) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ca(1)O12 cuboctahedra, corners with eight equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(3)O6 octahedra, faces with three equivalent Fe(1)O6 octahedra, and faces with three equivalent Fe(2)O6 octahedra. In the third Sr site, Sr(3) is bonded to three equivalent O(4), three equivalent O(6), and six equivalent O(5) atoms to form SrO12 cuboctahedra that share corners with twelve equivalent Sr(1)O12 cuboctahedra, faces with six equivalent Sr(2)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(3)O6 octahedra, faces with three equivalent Fe(1)O6 octahedra, and faces with three equivalent Fe(2)O6 octahedra. Ca(1) is bonded to three equivalent O(1), three equivalent O(3), and six equivalent O(2) atoms to form CaO12 cuboctahedra that share corners with twelve equivalent Sr(2)O12 cuboctahedra, faces with six equivalent Sr(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(3)O6 octahedra, faces with three equivalent Fe(1)O6 octahedra, and faces with three equivalent Fe(2)O6 octahedra. Mn(1) is bonded to three equivalent O(3) and three equivalent O(6) atoms to form MnO6 octahedra that share corners with six equivalent Fe(2)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Ca(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°. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Fe(3)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Ca(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 Fe site, Fe(2) is bonded to one O(3), one O(6), two equivalent O(2), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Ca(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 third Fe site, Fe(3) is bonded to three equivalent O(1) and three equivalent O(4) atoms to form FeO6 octahedra that share corners with six equivalent Fe(1)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Ca(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°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one Ca(1), one Fe(1), and one Fe(3) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one Ca(1), one Fe(1), and one Fe(2) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one Ca(1), one Mn(1), and one Fe(2) atom. In the fourth O site, O(4) is bonded to one Sr(1), one Sr(3), two equivalent Sr(2), one Fe(1), and one Fe(3) atom to form a mixture of distorted edge, corner, and face-sharing OSr4Fe2 octahedra. The corner-sharing octahedral tilt angles are 60°. In the fifth O site, O(5) is bonded to one Sr(1), one Sr(3), two equivalent Sr(2), one Fe(1), and one Fe(2) atom to form a mixture of distorted edge, corner, and face-sharing OSr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. In the sixth O site, O(6) is bonded in a distorted linear geometry to one Sr(1), one Sr(3), two equivalent Sr(2), one Mn(1), and one Fe(2) atom. is represented by the CIF card [CIF]
data_Sr7CaMnFe7O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.809
_cell_length_b   7.809
_cell_length_c   7.809
_cell_angle_alpha   89.999
_cell_angle_beta   89.999
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   476.208
_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  0.750  0.250  0.750  1.0
  Sr  Sr1  1  0.750  0.250  0.250  1.0
  Sr  Sr2  1  0.750  0.750  0.250  1.0
  Sr  Sr3  1  0.250  0.250  0.750  1.0
  Sr  Sr4  1  0.250  0.250  0.250  1.0
  Sr  Sr5  1  0.250  0.750  0.750  1.0
  Sr  Sr6  1  0.250  0.750  0.250  1.0
  Ca  Ca7  1  0.750  0.750  0.750  1.0
  Mn  Mn8  1  0.500  0.500  0.500  1.0
  Fe  Fe9  1  0.500  0.999  0.999  1.0
  Fe  Fe10  1  0.500  0.999  0.500  1.0
  Fe  Fe11  1  0.500  0.500  0.999  1.0
  Fe  Fe12  1  1.000  1.000  1.000  1.0
  Fe  Fe13  1  0.999  0.999  0.500  1.0
  Fe  Fe14  1  0.999  0.500  0.999  1.0
  Fe  Fe15  1  0.999  0.500  0.500  1.0
  O  O16  1  0.749  0.998  0.998  1.0
  O  O17  1  0.751  0.998  0.502  1.0
  O  O18  1  0.751  0.502  0.998  1.0
  O  O19  1  0.747  0.502  0.502  1.0
  O  O20  1  0.251  1.000  1.000  1.0
  O  O21  1  0.249  1.000  0.500  1.0
  O  O22  1  0.249  0.500  1.000  1.0
  O  O23  1  0.252  0.500  0.500  1.0
  O  O24  1  0.500  0.249  1.000  1.0
  O  O25  1  0.500  0.252  0.500  1.0
  O  O26  1  0.502  0.751  0.998  1.0
  O  O27  1  0.502  0.747  0.502  1.0
  O  O28  1  1.000  0.251  1.000  1.0
  O  O29  1  1.000  0.249  0.500  1.0
  O  O30  1  0.998  0.749  0.998  1.0
  O  O31  1  0.998  0.751  0.502  1.0
  O  O32  1  0.502  0.998  0.751  1.0
  O  O33  1  0.500  1.000  0.249  1.0
  O  O34  1  0.502  0.502  0.747  1.0
  O  O35  1  0.500  0.500  0.252  1.0
  O  O36  1  0.998  0.998  0.749  1.0
  O  O37  1  1.000  1.000  0.251  1.0
  O  O38  1  0.998  0.502  0.751  1.0
  O  O39  1  1.000  0.500  0.249  1.0
[/CIF]
.
The structure described by Sr7CaMnFe7O24 is (Cubic) Perovskite-derived structured and crystallizes in the trigonal R3m space group. There are three 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(3), two equivalent O(5), and four equivalent O(2) atoms to form SrO12 cuboctahedra that share corners with four equivalent Sr(3)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra, faces with four equivalent Sr(2)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(3)O6 octahedra, faces with three equivalent Fe(1)O6 octahedra, and faces with three equivalent Fe(2)O6 octahedra. In the second Sr site, Sr(2) is bonded to one O(1), one O(3), two equivalent O(2), two equivalent O(4), two equivalent O(6), and four equivalent O(5) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ca(1)O12 cuboctahedra, corners with eight equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Sr(3)O12 cuboctahedra, faces with four equivalent Sr(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(3)O6 octahedra, faces with three equivalent Fe(1)O6 octahedra, and faces with three equivalent Fe(2)O6 octahedra. In the third Sr site, Sr(3) is bonded to three equivalent O(4), three equivalent O(6), and six equivalent O(5) atoms to form SrO12 cuboctahedra that share corners with twelve equivalent Sr(1)O12 cuboctahedra, faces with six equivalent Sr(2)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(3)O6 octahedra, faces with three equivalent Fe(1)O6 octahedra, and faces with three equivalent Fe(2)O6 octahedra. Ca(1) is bonded to three equivalent O(1), three equivalent O(3), and six equivalent O(2) atoms to form CaO12 cuboctahedra that share corners with twelve equivalent Sr(2)O12 cuboctahedra, faces with six equivalent Sr(1)O12 cuboctahedra,  a faceface with one Mn(1)O6 octahedra,  a faceface with one Fe(3)O6 octahedra, faces with three equivalent Fe(1)O6 octahedra, and faces with three equivalent Fe(2)O6 octahedra. Mn(1) is bonded to three equivalent O(3) and three equivalent O(6) atoms to form MnO6 octahedra that share corners with six equivalent Fe(2)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Ca(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°. There are three inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(1), one O(4), two equivalent O(2), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Fe(3)O6 octahedra, corners with four equivalent Fe(2)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Ca(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 Fe site, Fe(2) is bonded to one O(3), one O(6), two equivalent O(2), and two equivalent O(5) atoms to form FeO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with four equivalent Fe(1)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Ca(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 third Fe site, Fe(3) is bonded to three equivalent O(1) and three equivalent O(4) atoms to form FeO6 octahedra that share corners with six equivalent Fe(1)O6 octahedra,  a faceface with one Sr(3)O12 cuboctahedra,  a faceface with one Ca(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°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one Ca(1), one Fe(1), and one Fe(3) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one Ca(1), one Fe(1), and one Fe(2) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(2), two equivalent Sr(1), one Ca(1), one Mn(1), and one Fe(2) atom. In the fourth O site, O(4) is bonded to one Sr(1), one Sr(3), two equivalent Sr(2), one Fe(1), and one Fe(3) atom to form a mixture of distorted edge, corner, and face-sharing OSr4Fe2 octahedra. The corner-sharing octahedral tilt angles are 60°. In the fifth O site, O(5) is bonded to one Sr(1), one Sr(3), two equivalent Sr(2), one Fe(1), and one Fe(2) atom to form a mixture of distorted edge, corner, and face-sharing OSr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-60°. In the sixth O site, O(6) is bonded in a distorted linear geometry to one Sr(1), one Sr(3), two equivalent Sr(2), one Mn(1), and one Fe(2) atom. is represented by the CIF card [CIF]
data_Sr7CaMnFe7O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.809
_cell_length_b   7.809
_cell_length_c   7.809
_cell_angle_alpha   89.999
_cell_angle_beta   89.999
_cell_angle_gamma   89.999
_symmetry_Int_Tables_number   1
_cell_volume   476.208
_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  0.750  0.250  0.750  1.0
  Sr  Sr1  1  0.750  0.250  0.250  1.0
  Sr  Sr2  1  0.750  0.750  0.250  1.0
  Sr  Sr3  1  0.250  0.250  0.750  1.0
  Sr  Sr4  1  0.250  0.250  0.250  1.0
  Sr  Sr5  1  0.250  0.750  0.750  1.0
  Sr  Sr6  1  0.250  0.750  0.250  1.0
  Ca  Ca7  1  0.750  0.750  0.750  1.0
  Mn  Mn8  1  0.500  0.500  0.500  1.0
  Fe  Fe9  1  0.500  0.999  0.999  1.0
  Fe  Fe10  1  0.500  0.999  0.500  1.0
  Fe  Fe11  1  0.500  0.500  0.999  1.0
  Fe  Fe12  1  1.000  1.000  1.000  1.0
  Fe  Fe13  1  0.999  0.999  0.500  1.0
  Fe  Fe14  1  0.999  0.500  0.999  1.0
  Fe  Fe15  1  0.999  0.500  0.500  1.0
  O  O16  1  0.749  0.998  0.998  1.0
  O  O17  1  0.751  0.998  0.502  1.0
  O  O18  1  0.751  0.502  0.998  1.0
  O  O19  1  0.747  0.502  0.502  1.0
  O  O20  1  0.251  1.000  1.000  1.0
  O  O21  1  0.249  1.000  0.500  1.0
  O  O22  1  0.249  0.500  1.000  1.0
  O  O23  1  0.252  0.500  0.500  1.0
  O  O24  1  0.500  0.249  1.000  1.0
  O  O25  1  0.500  0.252  0.500  1.0
  O  O26  1  0.502  0.751  0.998  1.0
  O  O27  1  0.502  0.747  0.502  1.0
  O  O28  1  1.000  0.251  1.000  1.0
  O  O29  1  1.000  0.249  0.500  1.0
  O  O30  1  0.998  0.749  0.998  1.0
  O  O31  1  0.998  0.751  0.502  1.0
  O  O32  1  0.502  0.998  0.751  1.0
  O  O33  1  0.500  1.000  0.249  1.0
  O  O34  1  0.502  0.502  0.747  1.0
  O  O35  1  0.500  0.500  0.252  1.0
  O  O36  1  0.998  0.998  0.749  1.0
  O  O37  1  1.000  1.000  0.251  1.0
  O  O38  1  0.998  0.502  0.751  1.0
  O  O39  1  1.000  0.500  0.249  1.0
[/CIF]
.