The structure described by SrCa7CrMn7O22 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 10-coordinate geometry to two equivalent O(2), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms. There are five inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a distorted body-centered cubic geometry to two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms. In the second Ca site, Ca(2) is bonded in a 10-coordinate geometry to one O(10), one O(11), one O(12), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(2) atoms. In the third Ca site, Ca(3) is bonded in a 10-coordinate geometry to one O(1), one O(10), one O(12), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(3) atoms. In the fourth Ca site, Ca(4) is bonded in a body-centered cubic geometry to two equivalent O(10), two equivalent O(11), two equivalent O(12), and two equivalent O(9) atoms. In the fifth Ca site, Ca(5) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(10), two equivalent O(12), and two equivalent O(3) atoms. Cr(1) is bonded to one O(1), two equivalent O(5), and two equivalent O(9) atoms to form CrO5 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 2-29°. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), two equivalent O(10), and two equivalent O(6) atoms to form MnO5 square pyramids that share corners with four equivalent Mn(3)O6 octahedra and  a cornercorner with one Cr(1)O5 square pyramid. The corner-sharing octahedral tilt angles range from 14-20°. In the second Mn site, Mn(2) is bonded to one O(11), one O(2), one O(3), one O(5), one O(7), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Cr(1)O5 square pyramids, and corners with two equivalent Mn(4)O5 square pyramids. The corner-sharing octahedral tilt angles range from 20-22°. In the third Mn site, Mn(3) 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(2)O6 octahedra, corners with two equivalent Mn(1)O5 square pyramids, and corners with two equivalent Mn(5)O5 square pyramids. The corner-sharing octahedral tilt angles range from 20-22°. In the fourth Mn site, Mn(4) is bonded to one O(4), two equivalent O(11), and two equivalent O(7) atoms to form MnO5 square pyramids that share corners with four equivalent Mn(2)O6 octahedra and  a cornercorner with one Mn(5)O5 square pyramid. The corner-sharing octahedral tilt angles range from 5-29°. In the fifth Mn site, Mn(5) is bonded to one O(4), two equivalent O(12), and two equivalent O(8) atoms to form MnO5 square pyramids that share corners with four equivalent Mn(3)O6 octahedra and  a cornercorner with one Mn(4)O5 square pyramid. The corner-sharing octahedral tilt angles range from 11-21°. There are twelve 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 Cr(1), and one Mn(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Ca(2), one Mn(2), and one Mn(3) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Ca(5), two equivalent Ca(3), one Mn(2), and one Mn(3) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Ca(5), two equivalent Ca(3), one Mn(4), and one Mn(5) atom. In the fifth O site, O(5) is bonded to one Sr(1), one Ca(1), one Ca(2), one Ca(3), one Cr(1), and one Mn(2) atom to form distorted OSrCa3MnCr octahedra that share edges with two equivalent O(7)SrCa3Mn2 octahedra,  a faceface with one O(7)SrCa3Mn2 octahedra, and  a faceface with one O(5)SrCa3MnCr octahedra. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(1), one Ca(1), one Ca(2), one Ca(3), one Mn(1), and one Mn(3) atom. In the seventh O site, O(7) is bonded to one Sr(1), one Ca(1), one Ca(2), one Ca(3), one Mn(2), and one Mn(4) atom to form distorted OSrCa3Mn2 octahedra that share edges with two equivalent O(5)SrCa3MnCr octahedra,  a faceface with one O(7)SrCa3Mn2 octahedra, and  a faceface with one O(5)SrCa3MnCr octahedra. 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(3), and one Mn(5) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Ca(2), one Ca(4), one Cr(1), and one Mn(2) atom. In the tenth O site, O(10) is bonded in a 6-coordinate geometry to one Ca(2), one Ca(3), one Ca(4), one Ca(5), one Mn(1), and one Mn(3) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Ca(2), one Ca(4), one Mn(2), and one Mn(4) atom. 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(3), and one Mn(5) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrCa7Mn7CrO22
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.719
_cell_length_b   7.719
_cell_length_c   7.665
_cell_angle_alpha   89.894
_cell_angle_beta   89.894
_cell_angle_gamma   90.711
_symmetry_Int_Tables_number   1
_cell_volume   456.685
_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  0.251  0.251  0.230  1.0
  Ca  Ca1  1  0.252  0.252  0.740  1.0
  Ca  Ca2  1  0.251  0.750  0.241  1.0
  Ca  Ca3  1  0.250  0.748  0.732  1.0
  Ca  Ca4  1  0.750  0.251  0.241  1.0
  Ca  Ca5  1  0.748  0.250  0.732  1.0
  Ca  Ca6  1  0.749  0.749  0.251  1.0
  Ca  Ca7  1  0.750  0.750  0.703  1.0
  Mn  Mn8  1  0.001  0.001  0.507  1.0
  Mn  Mn9  1  0.994  0.506  0.004  1.0
  Mn  Mn10  1  0.999  0.501  0.496  1.0
  Mn  Mn11  1  0.506  0.994  0.004  1.0
  Mn  Mn12  1  0.501  0.999  0.496  1.0
  Mn  Mn13  1  0.507  0.507  0.986  1.0
  Mn  Mn14  1  0.501  0.501  0.508  1.0
  Cr  Cr15  1  0.992  0.992  0.988  1.0
  O  O16  1  0.959  0.959  0.758  1.0
  O  O17  1  0.030  0.471  0.252  1.0
  O  O18  1  0.965  0.534  0.752  1.0
  O  O19  1  0.471  0.030  0.252  1.0
  O  O20  1  0.534  0.965  0.752  1.0
  O  O21  1  0.539  0.539  0.750  1.0
  O  O22  1  0.239  0.996  0.993  1.0
  O  O23  1  0.249  0.999  0.532  1.0
  O  O24  1  0.255  0.504  0.983  1.0
  O  O25  1  0.252  0.501  0.527  1.0
  O  O26  1  0.761  0.001  0.059  1.0
  O  O27  1  0.755  0.003  0.457  1.0
  O  O28  1  0.743  0.498  0.057  1.0
  O  O29  1  0.745  0.497  0.455  1.0
  O  O30  1  0.996  0.239  0.993  1.0
  O  O31  1  0.999  0.249  0.532  1.0
  O  O32  1  0.001  0.761  0.059  1.0
  O  O33  1  0.003  0.755  0.457  1.0
  O  O34  1  0.504  0.255  0.983  1.0
  O  O35  1  0.501  0.252  0.527  1.0
  O  O36  1  0.498  0.743  0.057  1.0
  O  O37  1  0.497  0.745  0.455  1.0
[/CIF]
.
The structure described by SrCa7CrMn7O22 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 10-coordinate geometry to two equivalent O(2), two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms. There are five inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a distorted body-centered cubic geometry to two equivalent O(5), two equivalent O(6), two equivalent O(7), and two equivalent O(8) atoms. In the second Ca site, Ca(2) is bonded in a 10-coordinate geometry to one O(10), one O(11), one O(12), one O(5), one O(6), one O(7), one O(8), one O(9), and two equivalent O(2) atoms. In the third Ca site, Ca(3) is bonded in a 10-coordinate geometry to one O(1), one O(10), one O(12), one O(4), one O(5), one O(6), one O(7), one O(8), and two equivalent O(3) atoms. In the fourth Ca site, Ca(4) is bonded in a body-centered cubic geometry to two equivalent O(10), two equivalent O(11), two equivalent O(12), and two equivalent O(9) atoms. In the fifth Ca site, Ca(5) is bonded in a 8-coordinate geometry to one O(1), one O(4), two equivalent O(10), two equivalent O(12), and two equivalent O(3) atoms. Cr(1) is bonded to one O(1), two equivalent O(5), and two equivalent O(9) atoms to form CrO5 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 2-29°. There are five inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), two equivalent O(10), and two equivalent O(6) atoms to form MnO5 square pyramids that share corners with four equivalent Mn(3)O6 octahedra and  a cornercorner with one Cr(1)O5 square pyramid. The corner-sharing octahedral tilt angles range from 14-20°. In the second Mn site, Mn(2) is bonded to one O(11), one O(2), one O(3), one O(5), one O(7), and one O(9) atom to form MnO6 octahedra that share corners with two equivalent Mn(3)O6 octahedra, corners with two equivalent Cr(1)O5 square pyramids, and corners with two equivalent Mn(4)O5 square pyramids. The corner-sharing octahedral tilt angles range from 20-22°. In the third Mn site, Mn(3) 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(2)O6 octahedra, corners with two equivalent Mn(1)O5 square pyramids, and corners with two equivalent Mn(5)O5 square pyramids. The corner-sharing octahedral tilt angles range from 20-22°. In the fourth Mn site, Mn(4) is bonded to one O(4), two equivalent O(11), and two equivalent O(7) atoms to form MnO5 square pyramids that share corners with four equivalent Mn(2)O6 octahedra and  a cornercorner with one Mn(5)O5 square pyramid. The corner-sharing octahedral tilt angles range from 5-29°. In the fifth Mn site, Mn(5) is bonded to one O(4), two equivalent O(12), and two equivalent O(8) atoms to form MnO5 square pyramids that share corners with four equivalent Mn(3)O6 octahedra and  a cornercorner with one Mn(4)O5 square pyramid. The corner-sharing octahedral tilt angles range from 11-21°. There are twelve 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 Cr(1), and one Mn(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Ca(2), one Mn(2), and one Mn(3) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Ca(5), two equivalent Ca(3), one Mn(2), and one Mn(3) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Ca(5), two equivalent Ca(3), one Mn(4), and one Mn(5) atom. In the fifth O site, O(5) is bonded to one Sr(1), one Ca(1), one Ca(2), one Ca(3), one Cr(1), and one Mn(2) atom to form distorted OSrCa3MnCr octahedra that share edges with two equivalent O(7)SrCa3Mn2 octahedra,  a faceface with one O(7)SrCa3Mn2 octahedra, and  a faceface with one O(5)SrCa3MnCr octahedra. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(1), one Ca(1), one Ca(2), one Ca(3), one Mn(1), and one Mn(3) atom. In the seventh O site, O(7) is bonded to one Sr(1), one Ca(1), one Ca(2), one Ca(3), one Mn(2), and one Mn(4) atom to form distorted OSrCa3Mn2 octahedra that share edges with two equivalent O(5)SrCa3MnCr octahedra,  a faceface with one O(7)SrCa3Mn2 octahedra, and  a faceface with one O(5)SrCa3MnCr octahedra. 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(3), and one Mn(5) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Ca(2), one Ca(4), one Cr(1), and one Mn(2) atom. In the tenth O site, O(10) is bonded in a 6-coordinate geometry to one Ca(2), one Ca(3), one Ca(4), one Ca(5), one Mn(1), and one Mn(3) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Ca(2), one Ca(4), one Mn(2), and one Mn(4) atom. 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(3), and one Mn(5) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrCa7Mn7CrO22
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.719
_cell_length_b   7.719
_cell_length_c   7.665
_cell_angle_alpha   89.894
_cell_angle_beta   89.894
_cell_angle_gamma   90.711
_symmetry_Int_Tables_number   1
_cell_volume   456.685
_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  0.251  0.251  0.230  1.0
  Ca  Ca1  1  0.252  0.252  0.740  1.0
  Ca  Ca2  1  0.251  0.750  0.241  1.0
  Ca  Ca3  1  0.250  0.748  0.732  1.0
  Ca  Ca4  1  0.750  0.251  0.241  1.0
  Ca  Ca5  1  0.748  0.250  0.732  1.0
  Ca  Ca6  1  0.749  0.749  0.251  1.0
  Ca  Ca7  1  0.750  0.750  0.703  1.0
  Mn  Mn8  1  0.001  0.001  0.507  1.0
  Mn  Mn9  1  0.994  0.506  0.004  1.0
  Mn  Mn10  1  0.999  0.501  0.496  1.0
  Mn  Mn11  1  0.506  0.994  0.004  1.0
  Mn  Mn12  1  0.501  0.999  0.496  1.0
  Mn  Mn13  1  0.507  0.507  0.986  1.0
  Mn  Mn14  1  0.501  0.501  0.508  1.0
  Cr  Cr15  1  0.992  0.992  0.988  1.0
  O  O16  1  0.959  0.959  0.758  1.0
  O  O17  1  0.030  0.471  0.252  1.0
  O  O18  1  0.965  0.534  0.752  1.0
  O  O19  1  0.471  0.030  0.252  1.0
  O  O20  1  0.534  0.965  0.752  1.0
  O  O21  1  0.539  0.539  0.750  1.0
  O  O22  1  0.239  0.996  0.993  1.0
  O  O23  1  0.249  0.999  0.532  1.0
  O  O24  1  0.255  0.504  0.983  1.0
  O  O25  1  0.252  0.501  0.527  1.0
  O  O26  1  0.761  0.001  0.059  1.0
  O  O27  1  0.755  0.003  0.457  1.0
  O  O28  1  0.743  0.498  0.057  1.0
  O  O29  1  0.745  0.497  0.455  1.0
  O  O30  1  0.996  0.239  0.993  1.0
  O  O31  1  0.999  0.249  0.532  1.0
  O  O32  1  0.001  0.761  0.059  1.0
  O  O33  1  0.003  0.755  0.457  1.0
  O  O34  1  0.504  0.255  0.983  1.0
  O  O35  1  0.501  0.252  0.527  1.0
  O  O36  1  0.498  0.743  0.057  1.0
  O  O37  1  0.497  0.745  0.455  1.0
[/CIF]
.