The structure described by Sr3Ca5Mn8O22 crystallizes in the monoclinic P2/m space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted q6 geometry to two equivalent O(2), four equivalent O(4), and four equivalent O(6) atoms. In the second Sr site, Sr(2) is bonded to two equivalent O(1), two equivalent O(3), four equivalent O(4), and four equivalent O(6) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ca(5)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, faces with two equivalent Ca(3)O12 cuboctahedra, faces with four equivalent Mn(2)O6 octahedra, and faces with four equivalent Mn(1)O5 square pyramids. In the third Sr site, Sr(3) is bonded in a distorted q6 geometry to two equivalent O(2), four equivalent O(5), and four equivalent O(6) atoms. There are five inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a distorted q6 geometry to two equivalent O(2), four equivalent O(4), and four equivalent O(7) atoms. In the second Ca site, Ca(2) is bonded to two equivalent O(1), two equivalent O(3), four equivalent O(4), and four equivalent O(7) atoms to form CaO12 cuboctahedra that share corners with four equivalent Ca(3)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Ca(5)O12 cuboctahedra, faces with four equivalent Mn(2)O6 octahedra, and faces with four equivalent Mn(1)O5 square pyramids. In the third Ca site, Ca(3) is bonded to two equivalent O(1), two equivalent O(3), four equivalent O(5), and four equivalent O(6) atoms to form CaO12 cuboctahedra that share corners with four equivalent Ca(2)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Ca(5)O12 cuboctahedra, faces with four equivalent Mn(2)O6 octahedra, and faces with four equivalent Mn(1)O5 square pyramids. In the fourth Ca site, Ca(4) is bonded in a distorted q6 geometry to two equivalent O(2), four equivalent O(5), and four equivalent O(7) atoms. In the fifth Ca site, Ca(5) is bonded to two equivalent O(1), two equivalent O(3), four equivalent O(5), and four equivalent O(7) atoms to form CaO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, faces with two equivalent Ca(3)O12 cuboctahedra, faces with four equivalent Mn(2)O6 octahedra, and faces with four equivalent Mn(1)O5 square pyramids. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(4), one O(5), one O(6), and one O(7) atom to form MnO5 square pyramids that share corners with four equivalent Mn(2)O6 octahedra,  a cornercorner with one Mn(1)O5 square pyramid,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Ca(2)O12 cuboctahedra,  a faceface with one Ca(3)O12 cuboctahedra, and  a faceface with one Ca(5)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 7-12°. In the second Mn site, Mn(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with four equivalent Mn(1)O5 square pyramids,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Ca(2)O12 cuboctahedra,  a faceface with one Ca(3)O12 cuboctahedra, and  a faceface with one Ca(5)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a 2-coordinate geometry to one Ca(1), one Ca(2), one Ca(4), one Ca(5), one Mn(1), and one Mn(2) atom. In the second O site, O(1) is bonded in a distorted linear geometry to one Sr(2), one Ca(2), one Ca(3), one Ca(5), and two equivalent Mn(1) atoms. In the third O site, O(2) is bonded in a distorted linear geometry to one Sr(1), one Sr(3), one Ca(1), one Ca(4), and two equivalent Mn(2) atoms. In the fourth O site, O(3) is bonded to one Sr(2), one Ca(2), one Ca(3), one Ca(5), and two equivalent Mn(2) atoms to form distorted OSrCa3Mn2 octahedra that share corners with four equivalent O(6)Sr3CaMn2 octahedra, corners with four equivalent O(3)SrCa3Mn2 octahedra, and faces with two equivalent O(6)Sr3CaMn2 octahedra. The corner-sharing octahedral tilt angles range from 0-62°. In the fifth O site, O(4) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Ca(1), one Ca(2), one Mn(1), and one Mn(2) atom. In the sixth O site, O(5) is bonded in a 6-coordinate geometry to one Sr(3), one Ca(3), one Ca(4), one Ca(5), one Mn(1), and one Mn(2) atom. In the seventh O site, O(6) is bonded to one Sr(1), one Sr(2), one Sr(3), one Ca(3), one Mn(1), and one Mn(2) atom to form distorted OSr3CaMn2 octahedra that share corners with two equivalent O(3)SrCa3Mn2 octahedra, corners with four equivalent O(6)Sr3CaMn2 octahedra, edges with four equivalent O(6)Sr3CaMn2 octahedra, and  a faceface with one O(3)SrCa3Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-62°. is represented by the CIF file [CIF]
data_Sr3Ca5Mn8O22
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.721
_cell_length_b   7.715
_cell_length_c   7.725
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.952
_symmetry_Int_Tables_number   1
_cell_volume   460.167
_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  0.250  1.0
  Sr  Sr1  1  0.250  0.250  0.750  1.0
  Sr  Sr2  1  0.750  0.250  0.250  1.0
  Ca  Ca3  1  0.250  0.750  0.250  1.0
  Ca  Ca4  1  0.250  0.750  0.750  1.0
  Ca  Ca5  1  0.750  0.250  0.750  1.0
  Ca  Ca6  1  0.750  0.750  0.250  1.0
  Ca  Ca7  1  0.750  0.750  0.750  1.0
  Mn  Mn8  1  0.999  0.998  0.991  1.0
  Mn  Mn9  1  0.999  0.998  0.509  1.0
  Mn  Mn10  1  0.999  0.503  0.006  1.0
  Mn  Mn11  1  0.999  0.503  0.494  1.0
  Mn  Mn12  1  0.501  0.997  0.006  1.0
  Mn  Mn13  1  0.501  0.997  0.494  1.0
  Mn  Mn14  1  0.501  0.502  0.991  1.0
  Mn  Mn15  1  0.501  0.502  0.509  1.0
  O  O16  1  0.996  0.993  0.750  1.0
  O  O17  1  0.999  0.503  0.250  1.0
  O  O18  1  0.996  0.507  0.750  1.0
  O  O19  1  0.501  0.997  0.250  1.0
  O  O20  1  0.504  0.993  0.750  1.0
  O  O21  1  0.504  0.507  0.750  1.0
  O  O22  1  0.245  0.993  0.019  1.0
  O  O23  1  0.245  0.993  0.481  1.0
  O  O24  1  0.255  0.507  0.019  1.0
  O  O25  1  0.255  0.507  0.481  1.0
  O  O26  1  0.755  0.994  0.018  1.0
  O  O27  1  0.755  0.994  0.482  1.0
  O  O28  1  0.745  0.506  0.018  1.0
  O  O29  1  0.745  0.506  0.482  1.0
  O  O30  1  0.998  0.246  0.013  1.0
  O  O31  1  0.998  0.246  0.487  1.0
  O  O32  1  0.999  0.755  0.024  1.0
  O  O33  1  0.999  0.755  0.476  1.0
  O  O34  1  0.502  0.254  0.013  1.0
  O  O35  1  0.502  0.254  0.487  1.0
  O  O36  1  0.501  0.745  0.024  1.0
  O  O37  1  0.501  0.745  0.476  1.0
[/CIF]
.
The structure described by Sr3Ca5Mn8O22 crystallizes in the monoclinic P2/m space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted q6 geometry to two equivalent O(2), four equivalent O(4), and four equivalent O(6) atoms. In the second Sr site, Sr(2) is bonded to two equivalent O(1), two equivalent O(3), four equivalent O(4), and four equivalent O(6) atoms to form SrO12 cuboctahedra that share corners with four equivalent Ca(5)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, faces with two equivalent Ca(3)O12 cuboctahedra, faces with four equivalent Mn(2)O6 octahedra, and faces with four equivalent Mn(1)O5 square pyramids. In the third Sr site, Sr(3) is bonded in a distorted q6 geometry to two equivalent O(2), four equivalent O(5), and four equivalent O(6) atoms. There are five inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a distorted q6 geometry to two equivalent O(2), four equivalent O(4), and four equivalent O(7) atoms. In the second Ca site, Ca(2) is bonded to two equivalent O(1), two equivalent O(3), four equivalent O(4), and four equivalent O(7) atoms to form CaO12 cuboctahedra that share corners with four equivalent Ca(3)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Ca(5)O12 cuboctahedra, faces with four equivalent Mn(2)O6 octahedra, and faces with four equivalent Mn(1)O5 square pyramids. In the third Ca site, Ca(3) is bonded to two equivalent O(1), two equivalent O(3), four equivalent O(5), and four equivalent O(6) atoms to form CaO12 cuboctahedra that share corners with four equivalent Ca(2)O12 cuboctahedra, faces with two equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Ca(5)O12 cuboctahedra, faces with four equivalent Mn(2)O6 octahedra, and faces with four equivalent Mn(1)O5 square pyramids. In the fourth Ca site, Ca(4) is bonded in a distorted q6 geometry to two equivalent O(2), four equivalent O(5), and four equivalent O(7) atoms. In the fifth Ca site, Ca(5) is bonded to two equivalent O(1), two equivalent O(3), four equivalent O(5), and four equivalent O(7) atoms to form CaO12 cuboctahedra that share corners with four equivalent Sr(2)O12 cuboctahedra, faces with two equivalent Ca(2)O12 cuboctahedra, faces with two equivalent Ca(3)O12 cuboctahedra, faces with four equivalent Mn(2)O6 octahedra, and faces with four equivalent Mn(1)O5 square pyramids. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(4), one O(5), one O(6), and one O(7) atom to form MnO5 square pyramids that share corners with four equivalent Mn(2)O6 octahedra,  a cornercorner with one Mn(1)O5 square pyramid,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Ca(2)O12 cuboctahedra,  a faceface with one Ca(3)O12 cuboctahedra, and  a faceface with one Ca(5)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 7-12°. In the second Mn site, Mn(2) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form MnO6 octahedra that share corners with two equivalent Mn(2)O6 octahedra, corners with four equivalent Mn(1)O5 square pyramids,  a faceface with one Sr(2)O12 cuboctahedra,  a faceface with one Ca(2)O12 cuboctahedra,  a faceface with one Ca(3)O12 cuboctahedra, and  a faceface with one Ca(5)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 0-2°. There are seven inequivalent O sites. In the first O site, O(7) is bonded in a 2-coordinate geometry to one Ca(1), one Ca(2), one Ca(4), one Ca(5), one Mn(1), and one Mn(2) atom. In the second O site, O(1) is bonded in a distorted linear geometry to one Sr(2), one Ca(2), one Ca(3), one Ca(5), and two equivalent Mn(1) atoms. In the third O site, O(2) is bonded in a distorted linear geometry to one Sr(1), one Sr(3), one Ca(1), one Ca(4), and two equivalent Mn(2) atoms. In the fourth O site, O(3) is bonded to one Sr(2), one Ca(2), one Ca(3), one Ca(5), and two equivalent Mn(2) atoms to form distorted OSrCa3Mn2 octahedra that share corners with four equivalent O(6)Sr3CaMn2 octahedra, corners with four equivalent O(3)SrCa3Mn2 octahedra, and faces with two equivalent O(6)Sr3CaMn2 octahedra. The corner-sharing octahedral tilt angles range from 0-62°. In the fifth O site, O(4) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Ca(1), one Ca(2), one Mn(1), and one Mn(2) atom. In the sixth O site, O(5) is bonded in a 6-coordinate geometry to one Sr(3), one Ca(3), one Ca(4), one Ca(5), one Mn(1), and one Mn(2) atom. In the seventh O site, O(6) is bonded to one Sr(1), one Sr(2), one Sr(3), one Ca(3), one Mn(1), and one Mn(2) atom to form distorted OSr3CaMn2 octahedra that share corners with two equivalent O(3)SrCa3Mn2 octahedra, corners with four equivalent O(6)Sr3CaMn2 octahedra, edges with four equivalent O(6)Sr3CaMn2 octahedra, and  a faceface with one O(3)SrCa3Mn2 octahedra. The corner-sharing octahedral tilt angles range from 0-62°. is represented by the CIF file [CIF]
data_Sr3Ca5Mn8O22
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.721
_cell_length_b   7.715
_cell_length_c   7.725
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.952
_symmetry_Int_Tables_number   1
_cell_volume   460.167
_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  0.250  1.0
  Sr  Sr1  1  0.250  0.250  0.750  1.0
  Sr  Sr2  1  0.750  0.250  0.250  1.0
  Ca  Ca3  1  0.250  0.750  0.250  1.0
  Ca  Ca4  1  0.250  0.750  0.750  1.0
  Ca  Ca5  1  0.750  0.250  0.750  1.0
  Ca  Ca6  1  0.750  0.750  0.250  1.0
  Ca  Ca7  1  0.750  0.750  0.750  1.0
  Mn  Mn8  1  0.999  0.998  0.991  1.0
  Mn  Mn9  1  0.999  0.998  0.509  1.0
  Mn  Mn10  1  0.999  0.503  0.006  1.0
  Mn  Mn11  1  0.999  0.503  0.494  1.0
  Mn  Mn12  1  0.501  0.997  0.006  1.0
  Mn  Mn13  1  0.501  0.997  0.494  1.0
  Mn  Mn14  1  0.501  0.502  0.991  1.0
  Mn  Mn15  1  0.501  0.502  0.509  1.0
  O  O16  1  0.996  0.993  0.750  1.0
  O  O17  1  0.999  0.503  0.250  1.0
  O  O18  1  0.996  0.507  0.750  1.0
  O  O19  1  0.501  0.997  0.250  1.0
  O  O20  1  0.504  0.993  0.750  1.0
  O  O21  1  0.504  0.507  0.750  1.0
  O  O22  1  0.245  0.993  0.019  1.0
  O  O23  1  0.245  0.993  0.481  1.0
  O  O24  1  0.255  0.507  0.019  1.0
  O  O25  1  0.255  0.507  0.481  1.0
  O  O26  1  0.755  0.994  0.018  1.0
  O  O27  1  0.755  0.994  0.482  1.0
  O  O28  1  0.745  0.506  0.018  1.0
  O  O29  1  0.745  0.506  0.482  1.0
  O  O30  1  0.998  0.246  0.013  1.0
  O  O31  1  0.998  0.246  0.487  1.0
  O  O32  1  0.999  0.755  0.024  1.0
  O  O33  1  0.999  0.755  0.476  1.0
  O  O34  1  0.502  0.254  0.013  1.0
  O  O35  1  0.502  0.254  0.487  1.0
  O  O36  1  0.501  0.745  0.024  1.0
  O  O37  1  0.501  0.745  0.476  1.0
[/CIF]
.