The compound described by SrCa7TiMn7O23 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 11-coordinate geometry to one O(4), two equivalent O(2), two equivalent O(6), two equivalent O(7), two equivalent O(8), and two equivalent O(9) atoms. There are five inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 11-coordinate geometry to one O(5), two equivalent O(3), two equivalent O(6), two equivalent O(7), two equivalent O(8), and two equivalent O(9) atoms. In the second Ca site, Ca(2) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(12), one O(13), one O(2), one O(4), one O(8), and one O(9) atom. In the third Ca site, Ca(3) is bonded in a 9-coordinate geometry to one O(1), one O(12), one O(13), one O(3), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the fourth Ca site, Ca(4) is bonded in a 11-coordinate geometry to one O(4), two equivalent O(10), two equivalent O(11), two equivalent O(12), two equivalent O(13), and two equivalent O(2) atoms. In the fifth Ca site, Ca(5) is bonded in a 8-coordinate geometry to one O(1), one O(5), two equivalent O(12), two equivalent O(13), and two equivalent O(3) atoms. Ti(1) is bonded to one O(1), two equivalent O(10), and two equivalent O(6) atoms to form TiO5 square pyramids that share corners with four equivalent Mn(2)O6 octahedra and  a cornercorner with one Mn(1)O5 square pyramid. The corner-sharing octahedral tilt angles range from 13-34°. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), two equivalent O(11), and two equivalent O(7) atoms to form MnO5 square pyramids that share corners with four equivalent Mn(3)O6 octahedra and  a cornercorner with one Ti(1)O5 square pyramid. The corner-sharing octahedral tilt angles range from 21-32°. In the second Mn site, Mn(2) is bonded to one O(10), one O(12), one O(2), one O(3), one O(6), and one O(8) atom to form MnO6 octahedra that share corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, and corners with two equivalent Ti(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 10-28°. In the third Mn site, Mn(3) is bonded to one O(11), one O(13), one O(2), one O(3), one O(7), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(5)O6 octahedra, and corners with two equivalent Mn(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 9-28°. In the fourth Mn site, Mn(4) is bonded to one O(4), one O(5), two equivalent O(12), and two equivalent O(8) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 10-15°. In the fifth Mn site, Mn(5) is bonded to one O(4), one O(5), two equivalent O(13), and two equivalent O(9) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 9-15°. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Ca(5), two equivalent Ca(3), one Ti(1), and one Mn(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sr(1), one Ca(2), one Ca(4), one Mn(2), and one Mn(3) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Ca(1), one Ca(3), one Ca(5), one Mn(2), and one Mn(3) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to one Sr(1), one Ca(4), two equivalent Ca(2), one Mn(4), and one Mn(5) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to one Ca(1), one Ca(5), two equivalent Ca(3), one Mn(4), and one Mn(5) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Sr(1), one Ca(1), one Ca(3), one Ti(1), and one Mn(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(1), one Ca(1), one Ca(3), one Mn(1), and one Mn(3) atom. In the eighth O site, O(8) is bonded in a 6-coordinate geometry to one Sr(1), one Ca(1), one Ca(2), one Ca(3), one Mn(2), and one Mn(4) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Sr(1), one Ca(1), one Ca(2), one Ca(3), one Mn(3), and one Mn(5) atom. In the tenth O site, O(10) is bonded to one Ca(2), one Ca(4), one Ti(1), and one Mn(2) atom to form distorted OCa2TiMn tetrahedra that share  a cornercorner with one O(11)Ca2Mn2 tetrahedra,  an edgeedge with one O(11)Ca2Mn2 tetrahedra, and  an edgeedge with one O(10)Ca2TiMn tetrahedra. In the eleventh O site, O(11) is bonded to one Ca(2), one Ca(4), one Mn(1), and one Mn(3) atom to form distorted OCa2Mn2 tetrahedra that share  a cornercorner with one O(10)Ca2TiMn tetrahedra,  an edgeedge with one O(11)Ca2Mn2 tetrahedra, and  an edgeedge with one O(10)Ca2TiMn tetrahedra. In the twelfth O site, O(12) is bonded in a 6-coordinate geometry to one Ca(2), one Ca(3), one Ca(4), one Ca(5), one Mn(2), and one Mn(4) atom. In the thirteenth O site, O(13) is bonded in a 6-coordinate geometry to one Ca(2), one Ca(3), one Ca(4), one Ca(5), one Mn(3), and one Mn(5) atom. is represented by the CIF file [CIF]
data_SrCa7TiMn7O23
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.652
_cell_length_b   7.652
_cell_length_c   7.650
_cell_angle_alpha   89.928
_cell_angle_beta   89.928
_cell_angle_gamma   90.215
_symmetry_Int_Tables_number   1
_cell_volume   447.966
_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  0.259  0.259  0.251  1.0
  Ca  Ca1  1  0.256  0.256  0.747  1.0
  Ca  Ca2  1  0.263  0.728  0.250  1.0
  Ca  Ca3  1  0.267  0.746  0.747  1.0
  Ca  Ca4  1  0.728  0.263  0.250  1.0
  Ca  Ca5  1  0.746  0.267  0.747  1.0
  Ca  Ca6  1  0.748  0.748  0.251  1.0
  Ca  Ca7  1  0.729  0.729  0.749  1.0
  Ti  Ti8  1  0.991  0.991  0.975  1.0
  Mn  Mn9  1  0.998  0.998  0.506  1.0
  Mn  Mn10  1  0.001  0.502  0.001  1.0
  Mn  Mn11  1  0.001  0.504  0.500  1.0
  Mn  Mn12  1  0.502  0.001  0.001  1.0
  Mn  Mn13  1  0.504  0.001  0.500  1.0
  Mn  Mn14  1  0.502  0.502  0.999  1.0
  Mn  Mn15  1  0.502  0.502  0.501  1.0
  O  O16  1  0.943  0.943  0.755  1.0
  O  O17  1  0.976  0.445  0.251  1.0
  O  O18  1  0.020  0.559  0.751  1.0
  O  O19  1  0.445  0.976  0.251  1.0
  O  O20  1  0.559  0.020  0.751  1.0
  O  O21  1  0.523  0.523  0.250  1.0
  O  O22  1  0.478  0.478  0.750  1.0
  O  O23  1  0.251  0.003  0.961  1.0
  O  O24  1  0.251  0.003  0.549  1.0
  O  O25  1  0.251  0.506  0.022  1.0
  O  O26  1  0.251  0.506  0.480  1.0
  O  O27  1  0.755  0.006  0.061  1.0
  O  O28  1  0.755  0.006  0.434  1.0
  O  O29  1  0.752  0.504  0.974  1.0
  O  O30  1  0.752  0.505  0.526  1.0
  O  O31  1  0.003  0.251  0.961  1.0
  O  O32  1  0.003  0.251  0.549  1.0
  O  O33  1  0.006  0.755  0.061  1.0
  O  O34  1  0.006  0.755  0.434  1.0
  O  O35  1  0.506  0.251  0.022  1.0
  O  O36  1  0.506  0.251  0.480  1.0
  O  O37  1  0.504  0.752  0.974  1.0
  O  O38  1  0.505  0.752  0.526  1.0
[/CIF]
.
The compound described by SrCa7TiMn7O23 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 11-coordinate geometry to one O(4), two equivalent O(2), two equivalent O(6), two equivalent O(7), two equivalent O(8), and two equivalent O(9) atoms. There are five inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 11-coordinate geometry to one O(5), two equivalent O(3), two equivalent O(6), two equivalent O(7), two equivalent O(8), and two equivalent O(9) atoms. In the second Ca site, Ca(2) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(12), one O(13), one O(2), one O(4), one O(8), and one O(9) atom. In the third Ca site, Ca(3) is bonded in a 9-coordinate geometry to one O(1), one O(12), one O(13), one O(3), one O(5), one O(6), one O(7), one O(8), and one O(9) atom. In the fourth Ca site, Ca(4) is bonded in a 11-coordinate geometry to one O(4), two equivalent O(10), two equivalent O(11), two equivalent O(12), two equivalent O(13), and two equivalent O(2) atoms. In the fifth Ca site, Ca(5) is bonded in a 8-coordinate geometry to one O(1), one O(5), two equivalent O(12), two equivalent O(13), and two equivalent O(3) atoms. Ti(1) is bonded to one O(1), two equivalent O(10), and two equivalent O(6) atoms to form TiO5 square pyramids that share corners with four equivalent Mn(2)O6 octahedra and  a cornercorner with one Mn(1)O5 square pyramid. The corner-sharing octahedral tilt angles range from 13-34°. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), two equivalent O(11), and two equivalent O(7) atoms to form MnO5 square pyramids that share corners with four equivalent Mn(3)O6 octahedra and  a cornercorner with one Ti(1)O5 square pyramid. The corner-sharing octahedral tilt angles range from 21-32°. In the second Mn site, Mn(2) is bonded to one O(10), one O(12), one O(2), one O(3), one O(6), and one O(8) atom to form MnO6 octahedra that share corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Mn(4)O6 octahedra, and corners with two equivalent Ti(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 10-28°. In the third Mn site, Mn(3) is bonded to one O(11), one O(13), one O(2), one O(3), one O(7), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with two equivalent Mn(5)O6 octahedra, and corners with two equivalent Mn(1)O5 square pyramids. The corner-sharing octahedral tilt angles range from 9-28°. In the fourth Mn site, Mn(4) is bonded to one O(4), one O(5), two equivalent O(12), and two equivalent O(8) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 10-15°. In the fifth Mn site, Mn(5) is bonded to one O(4), one O(5), two equivalent O(13), and two equivalent O(9) atoms to form corner-sharing MnO6 octahedra. The corner-sharing octahedral tilt angles range from 9-15°. There are thirteen inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Ca(5), two equivalent Ca(3), one Ti(1), and one Mn(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sr(1), one Ca(2), one Ca(4), one Mn(2), and one Mn(3) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Ca(1), one Ca(3), one Ca(5), one Mn(2), and one Mn(3) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to one Sr(1), one Ca(4), two equivalent Ca(2), one Mn(4), and one Mn(5) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to one Ca(1), one Ca(5), two equivalent Ca(3), one Mn(4), and one Mn(5) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Sr(1), one Ca(1), one Ca(3), one Ti(1), and one Mn(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(1), one Ca(1), one Ca(3), one Mn(1), and one Mn(3) atom. In the eighth O site, O(8) is bonded in a 6-coordinate geometry to one Sr(1), one Ca(1), one Ca(2), one Ca(3), one Mn(2), and one Mn(4) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Sr(1), one Ca(1), one Ca(2), one Ca(3), one Mn(3), and one Mn(5) atom. In the tenth O site, O(10) is bonded to one Ca(2), one Ca(4), one Ti(1), and one Mn(2) atom to form distorted OCa2TiMn tetrahedra that share  a cornercorner with one O(11)Ca2Mn2 tetrahedra,  an edgeedge with one O(11)Ca2Mn2 tetrahedra, and  an edgeedge with one O(10)Ca2TiMn tetrahedra. In the eleventh O site, O(11) is bonded to one Ca(2), one Ca(4), one Mn(1), and one Mn(3) atom to form distorted OCa2Mn2 tetrahedra that share  a cornercorner with one O(10)Ca2TiMn tetrahedra,  an edgeedge with one O(11)Ca2Mn2 tetrahedra, and  an edgeedge with one O(10)Ca2TiMn tetrahedra. In the twelfth O site, O(12) is bonded in a 6-coordinate geometry to one Ca(2), one Ca(3), one Ca(4), one Ca(5), one Mn(2), and one Mn(4) atom. In the thirteenth O site, O(13) is bonded in a 6-coordinate geometry to one Ca(2), one Ca(3), one Ca(4), one Ca(5), one Mn(3), and one Mn(5) atom. is represented by the CIF file [CIF]
data_SrCa7TiMn7O23
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.652
_cell_length_b   7.652
_cell_length_c   7.650
_cell_angle_alpha   89.928
_cell_angle_beta   89.928
_cell_angle_gamma   90.215
_symmetry_Int_Tables_number   1
_cell_volume   447.966
_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  0.259  0.259  0.251  1.0
  Ca  Ca1  1  0.256  0.256  0.747  1.0
  Ca  Ca2  1  0.263  0.728  0.250  1.0
  Ca  Ca3  1  0.267  0.746  0.747  1.0
  Ca  Ca4  1  0.728  0.263  0.250  1.0
  Ca  Ca5  1  0.746  0.267  0.747  1.0
  Ca  Ca6  1  0.748  0.748  0.251  1.0
  Ca  Ca7  1  0.729  0.729  0.749  1.0
  Ti  Ti8  1  0.991  0.991  0.975  1.0
  Mn  Mn9  1  0.998  0.998  0.506  1.0
  Mn  Mn10  1  0.001  0.502  0.001  1.0
  Mn  Mn11  1  0.001  0.504  0.500  1.0
  Mn  Mn12  1  0.502  0.001  0.001  1.0
  Mn  Mn13  1  0.504  0.001  0.500  1.0
  Mn  Mn14  1  0.502  0.502  0.999  1.0
  Mn  Mn15  1  0.502  0.502  0.501  1.0
  O  O16  1  0.943  0.943  0.755  1.0
  O  O17  1  0.976  0.445  0.251  1.0
  O  O18  1  0.020  0.559  0.751  1.0
  O  O19  1  0.445  0.976  0.251  1.0
  O  O20  1  0.559  0.020  0.751  1.0
  O  O21  1  0.523  0.523  0.250  1.0
  O  O22  1  0.478  0.478  0.750  1.0
  O  O23  1  0.251  0.003  0.961  1.0
  O  O24  1  0.251  0.003  0.549  1.0
  O  O25  1  0.251  0.506  0.022  1.0
  O  O26  1  0.251  0.506  0.480  1.0
  O  O27  1  0.755  0.006  0.061  1.0
  O  O28  1  0.755  0.006  0.434  1.0
  O  O29  1  0.752  0.504  0.974  1.0
  O  O30  1  0.752  0.505  0.526  1.0
  O  O31  1  0.003  0.251  0.961  1.0
  O  O32  1  0.003  0.251  0.549  1.0
  O  O33  1  0.006  0.755  0.061  1.0
  O  O34  1  0.006  0.755  0.434  1.0
  O  O35  1  0.506  0.251  0.022  1.0
  O  O36  1  0.506  0.251  0.480  1.0
  O  O37  1  0.504  0.752  0.974  1.0
  O  O38  1  0.505  0.752  0.526  1.0
[/CIF]
.