The compound described by Sr2Ca6Mn7FeO24 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded to one O(1), one O(3), two equivalent O(2), two equivalent O(4), two equivalent O(5), two equivalent O(8), and two equivalent O(9) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ca(2)O12 cuboctahedra, corners with eight equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Ca(1)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one O(1), one O(10), one O(11), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(2) atoms to form CaO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Ca(1)O12 cuboctahedra, corners with four equivalent Ca(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. In the second Ca site, Ca(2) is bonded to one O(1), one O(3), two equivalent O(10), two equivalent O(11), two equivalent O(2), two equivalent O(6), and two equivalent O(7) atoms to form CaO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with eight equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, faces with four equivalent Ca(1)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(4), one O(5), one O(6), one O(7), and two equivalent O(2) atoms to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the second Mn site, Mn(2) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(7) atoms to form MnO6 octahedra that share corners with two equivalent Mn(5)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the third Mn site, Mn(3) is bonded to two equivalent O(1), two equivalent O(10), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Mn(4)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fourth Mn site, Mn(4) is bonded to one O(10), one O(11), one O(8), one O(9), and two equivalent O(2) atoms to form MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(5)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fifth Mn site, Mn(5) is bonded to two equivalent O(11), two equivalent O(3), and two equivalent O(9) atoms to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with four equivalent Mn(4)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. Fe(1) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Mn(3)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), one Ca(2), two equivalent Ca(1), one Mn(3), and one Fe(1) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one Sr(1), one Ca(2), two equivalent Ca(1), one Mn(1), and one Mn(4) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(1), one Ca(2), two equivalent Ca(1), one Mn(2), and one Mn(5) atom. In the fourth O site, O(4) is bonded to two equivalent Sr(1), two equivalent Ca(1), one Mn(1), and one Fe(1) atom to form distorted face-sharing OSr2Ca2MnFe octahedra. In the fifth O site, O(5) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Ca(1), one Mn(1), and one Mn(2) atom. In the sixth O site, O(6) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(1), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(1), and one Mn(2) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Ca(1), one Mn(3), and one Mn(4) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Ca(1), one Mn(4), and one Mn(5) atom. In the tenth O site, O(10) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(3), and one Mn(4) atom. In the eleventh O site, O(11) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(4), and one Mn(5) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2Ca6Mn7FeO24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.674
_cell_length_b   7.674
_cell_length_c   7.673
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.017
_symmetry_Int_Tables_number   1
_cell_volume   451.908
_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  0.250  0.250  0.750  1.0
  Sr  Sr1  1  0.250  0.250  0.250  1.0
  Ca  Ca2  1  0.750  0.250  0.750  1.0
  Ca  Ca3  1  0.750  0.750  0.750  1.0
  Ca  Ca4  1  0.250  0.750  0.750  1.0
  Ca  Ca5  1  0.750  0.250  0.250  1.0
  Ca  Ca6  1  0.750  0.750  0.250  1.0
  Ca  Ca7  1  0.250  0.750  0.250  1.0
  Mn  Mn8  1  0.501  0.999  0.000  1.0
  Mn  Mn9  1  0.999  0.501  0.000  1.0
  Mn  Mn10  1  0.501  0.501  0.000  1.0
  Mn  Mn11  1  0.999  0.999  0.500  1.0
  Mn  Mn12  1  0.501  0.999  0.500  1.0
  Mn  Mn13  1  0.999  0.501  0.500  1.0
  Mn  Mn14  1  0.501  0.501  0.500  1.0
  Fe  Fe15  1  0.999  0.999  0.000  1.0
  O  O16  1  0.997  0.997  0.745  1.0
  O  O17  1  0.504  0.997  0.749  1.0
  O  O18  1  0.997  0.504  0.749  1.0
  O  O19  1  0.503  0.503  0.750  1.0
  O  O20  1  0.997  0.997  0.255  1.0
  O  O21  1  0.504  0.997  0.251  1.0
  O  O22  1  0.997  0.504  0.251  1.0
  O  O23  1  0.503  0.503  0.250  1.0
  O  O24  1  0.994  0.255  0.000  1.0
  O  O25  1  0.506  0.251  0.000  1.0
  O  O26  1  0.999  0.745  0.000  1.0
  O  O27  1  0.501  0.749  0.000  1.0
  O  O28  1  0.994  0.251  0.500  1.0
  O  O29  1  0.506  0.250  0.500  1.0
  O  O30  1  0.999  0.749  0.500  1.0
  O  O31  1  0.501  0.750  0.500  1.0
  O  O32  1  0.745  0.999  0.000  1.0
  O  O33  1  0.255  0.994  0.000  1.0
  O  O34  1  0.749  0.501  0.000  1.0
  O  O35  1  0.251  0.506  0.000  1.0
  O  O36  1  0.749  0.999  0.500  1.0
  O  O37  1  0.251  0.994  0.500  1.0
  O  O38  1  0.750  0.501  0.500  1.0
  O  O39  1  0.250  0.506  0.500  1.0
[/CIF]
.
The compound described by Sr2Ca6Mn7FeO24 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded to one O(1), one O(3), two equivalent O(2), two equivalent O(4), two equivalent O(5), two equivalent O(8), and two equivalent O(9) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ca(2)O12 cuboctahedra, corners with eight equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with four equivalent Ca(1)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded to one O(1), one O(10), one O(11), one O(3), one O(4), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(2) atoms to form CaO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with four equivalent Ca(1)O12 cuboctahedra, corners with four equivalent Ca(2)O12 cuboctahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. In the second Ca site, Ca(2) is bonded to one O(1), one O(3), two equivalent O(10), two equivalent O(11), two equivalent O(2), two equivalent O(6), and two equivalent O(7) atoms to form CaO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with eight equivalent Ca(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, faces with four equivalent Ca(1)O12 cuboctahedra,  a faceface with one Mn(2)O6 octahedra,  a faceface with one Mn(3)O6 octahedra,  a faceface with one Mn(5)O6 octahedra,  a faceface with one Fe(1)O6 octahedra, faces with two equivalent Mn(1)O6 octahedra, and faces with two equivalent Mn(4)O6 octahedra. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(4), one O(5), one O(6), one O(7), and two equivalent O(2) atoms to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, corners with two equivalent Fe(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the second Mn site, Mn(2) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(7) atoms to form MnO6 octahedra that share corners with two equivalent Mn(5)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the third Mn site, Mn(3) is bonded to two equivalent O(1), two equivalent O(10), and two equivalent O(8) atoms to form MnO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra, corners with four equivalent Mn(4)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fourth Mn site, Mn(4) is bonded to one O(10), one O(11), one O(8), one O(9), and two equivalent O(2) atoms to form MnO6 octahedra that share corners with two equivalent Mn(1)O6 octahedra, corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(5)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. In the fifth Mn site, Mn(5) is bonded to two equivalent O(11), two equivalent O(3), and two equivalent O(9) atoms to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with four equivalent Mn(4)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. Fe(1) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(6) atoms to form FeO6 octahedra that share corners with two equivalent Mn(3)O6 octahedra, corners with four equivalent Mn(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, and faces with four equivalent Ca(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. There are eleven inequivalent O sites. In the first O site, O(1) is bonded in a distorted linear geometry to one Sr(1), one Ca(2), two equivalent Ca(1), one Mn(3), and one Fe(1) atom. In the second O site, O(2) is bonded in a distorted linear geometry to one Sr(1), one Ca(2), two equivalent Ca(1), one Mn(1), and one Mn(4) atom. In the third O site, O(3) is bonded in a distorted linear geometry to one Sr(1), one Ca(2), two equivalent Ca(1), one Mn(2), and one Mn(5) atom. In the fourth O site, O(4) is bonded to two equivalent Sr(1), two equivalent Ca(1), one Mn(1), and one Fe(1) atom to form distorted face-sharing OSr2Ca2MnFe octahedra. In the fifth O site, O(5) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Ca(1), one Mn(1), and one Mn(2) atom. In the sixth O site, O(6) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(1), and one Fe(1) atom. In the seventh O site, O(7) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(1), and one Mn(2) atom. In the eighth O site, O(8) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Ca(1), one Mn(3), and one Mn(4) atom. In the ninth O site, O(9) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Ca(1), one Mn(4), and one Mn(5) atom. In the tenth O site, O(10) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(3), and one Mn(4) atom. In the eleventh O site, O(11) is bonded in a distorted linear geometry to two equivalent Ca(1), two equivalent Ca(2), one Mn(4), and one Mn(5) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2Ca6Mn7FeO24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.674
_cell_length_b   7.674
_cell_length_c   7.673
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.017
_symmetry_Int_Tables_number   1
_cell_volume   451.908
_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  0.250  0.250  0.750  1.0
  Sr  Sr1  1  0.250  0.250  0.250  1.0
  Ca  Ca2  1  0.750  0.250  0.750  1.0
  Ca  Ca3  1  0.750  0.750  0.750  1.0
  Ca  Ca4  1  0.250  0.750  0.750  1.0
  Ca  Ca5  1  0.750  0.250  0.250  1.0
  Ca  Ca6  1  0.750  0.750  0.250  1.0
  Ca  Ca7  1  0.250  0.750  0.250  1.0
  Mn  Mn8  1  0.501  0.999  0.000  1.0
  Mn  Mn9  1  0.999  0.501  0.000  1.0
  Mn  Mn10  1  0.501  0.501  0.000  1.0
  Mn  Mn11  1  0.999  0.999  0.500  1.0
  Mn  Mn12  1  0.501  0.999  0.500  1.0
  Mn  Mn13  1  0.999  0.501  0.500  1.0
  Mn  Mn14  1  0.501  0.501  0.500  1.0
  Fe  Fe15  1  0.999  0.999  0.000  1.0
  O  O16  1  0.997  0.997  0.745  1.0
  O  O17  1  0.504  0.997  0.749  1.0
  O  O18  1  0.997  0.504  0.749  1.0
  O  O19  1  0.503  0.503  0.750  1.0
  O  O20  1  0.997  0.997  0.255  1.0
  O  O21  1  0.504  0.997  0.251  1.0
  O  O22  1  0.997  0.504  0.251  1.0
  O  O23  1  0.503  0.503  0.250  1.0
  O  O24  1  0.994  0.255  0.000  1.0
  O  O25  1  0.506  0.251  0.000  1.0
  O  O26  1  0.999  0.745  0.000  1.0
  O  O27  1  0.501  0.749  0.000  1.0
  O  O28  1  0.994  0.251  0.500  1.0
  O  O29  1  0.506  0.250  0.500  1.0
  O  O30  1  0.999  0.749  0.500  1.0
  O  O31  1  0.501  0.750  0.500  1.0
  O  O32  1  0.745  0.999  0.000  1.0
  O  O33  1  0.255  0.994  0.000  1.0
  O  O34  1  0.749  0.501  0.000  1.0
  O  O35  1  0.251  0.506  0.000  1.0
  O  O36  1  0.749  0.999  0.500  1.0
  O  O37  1  0.251  0.994  0.500  1.0
  O  O38  1  0.750  0.501  0.500  1.0
  O  O39  1  0.250  0.506  0.500  1.0
[/CIF]
.