The structure described by Ca3Mn2(FeO5)2 crystallizes in the monoclinic Pc space group. There are three inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(9), and two equivalent O(8) atoms. In the second Ca site, Ca(2) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), one O(6), and two equivalent O(7) atoms. In the third Ca site, Ca(3) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), one O(8), and two equivalent O(5) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form MnO6 octahedra that share corners with four equivalent Mn(2)O6 octahedra,  a cornercorner with one Fe(1)O4 tetrahedra, and  a cornercorner with one Fe(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 5-22°. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom to form MnO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra,  a cornercorner with one Fe(1)O4 tetrahedra, and  a cornercorner with one Fe(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 5-22°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(5), one O(7), and one O(9) atom to form FeO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, and corners with two equivalent Fe(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 37-39°. In the second Fe site, Fe(2) is bonded to one O(10), one O(6), one O(8), and one O(9) atom to form FeO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, and corners with two equivalent Fe(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 39-40°. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Ca(1), one Ca(2), one Ca(3), one Mn(1), and one Mn(2) atom to form distorted OCa3Mn2 square pyramids that share corners with two equivalent O(10)Ca2Fe2 tetrahedra,  an edgeedge with one O(4)Ca3Mn2 square pyramid, and  a faceface with one O(4)Ca3Mn2 square pyramid. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ca(1), one Ca(2), one Ca(3), one Mn(1), and one Mn(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Ca(1), one Ca(2), one Ca(3), one Mn(1), and one Mn(2) atom. In the fourth O site, O(4) is bonded to one Ca(1), one Ca(2), one Ca(3), one Mn(1), and one Mn(2) atom to form distorted OCa3Mn2 square pyramids that share corners with two equivalent O(10)Ca2Fe2 tetrahedra,  an edgeedge with one O(1)Ca3Mn2 square pyramid, and  a faceface with one O(1)Ca3Mn2 square pyramid. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Ca(1), two equivalent Ca(3), one Mn(1), and one Fe(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Ca(2), one Mn(1), and one Fe(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to two equivalent Ca(2), one Mn(2), and one Fe(1) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Ca(3), two equivalent Ca(1), one Mn(2), and one Fe(2) atom. In the ninth O site, O(9) is bonded in a trigonal non-coplanar geometry to one Ca(1), one Fe(1), and one Fe(2) atom. In the tenth O site, O(10) is bonded to one Ca(2), one Ca(3), one Fe(1), and one Fe(2) atom to form corner-sharing OCa2Fe2 tetrahedra. is represented by the CIF card [CIF]
data_Ca3Mn2(FeO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.417
_cell_length_b   5.620
_cell_length_c   15.348
_cell_angle_alpha   69.878
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   438.708
_cell_formula_units_Z   2
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
  Ca  Ca0  1  0.266  0.573  0.889  1.0
  Ca  Ca1  1  0.764  0.425  0.609  1.0
  Ca  Ca2  1  0.240  0.123  0.404  1.0
  Ca  Ca3  1  0.236  0.425  0.109  1.0
  Ca  Ca4  1  0.734  0.573  0.389  1.0
  Ca  Ca5  1  0.760  0.123  0.904  1.0
  Mn  Mn6  1  0.255  0.992  0.006  1.0
  Mn  Mn7  1  0.745  0.992  0.506  1.0
  Mn  Mn8  1  0.753  0.501  0.006  1.0
  Mn  Mn9  1  0.247  0.501  0.506  1.0
  Fe  Fe10  1  0.305  0.167  0.747  1.0
  Fe  Fe11  1  0.808  0.824  0.749  1.0
  Fe  Fe12  1  0.695  0.167  0.247  1.0
  Fe  Fe13  1  0.192  0.824  0.249  1.0
  O  O14  1  0.011  0.260  0.008  1.0
  O  O15  1  0.503  0.769  0.480  1.0
  O  O16  1  0.013  0.760  0.980  1.0
  O  O17  1  0.511  0.258  0.512  1.0
  O  O18  1  0.497  0.769  0.980  1.0
  O  O19  1  0.989  0.260  0.508  1.0
  O  O20  1  0.489  0.258  0.012  1.0
  O  O21  1  0.988  0.760  0.480  1.0
  O  O22  1  0.235  0.190  0.865  1.0
  O  O23  1  0.733  0.802  0.634  1.0
  O  O24  1  0.776  0.423  0.136  1.0
  O  O25  1  0.272  0.571  0.362  1.0
  O  O26  1  0.267  0.802  0.134  1.0
  O  O27  1  0.765  0.190  0.365  1.0
  O  O28  1  0.728  0.571  0.862  1.0
  O  O29  1  0.224  0.423  0.636  1.0
  O  O30  1  0.153  0.863  0.753  1.0
  O  O31  1  0.663  0.135  0.752  1.0
  O  O32  1  0.847  0.863  0.253  1.0
  O  O33  1  0.337  0.135  0.252  1.0
[/CIF]
.
The structure described by Ca3Mn2(FeO5)2 crystallizes in the monoclinic Pc space group. There are three inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(9), and two equivalent O(8) atoms. In the second Ca site, Ca(2) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), one O(6), and two equivalent O(7) atoms. In the third Ca site, Ca(3) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(4), one O(8), and two equivalent O(5) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form MnO6 octahedra that share corners with four equivalent Mn(2)O6 octahedra,  a cornercorner with one Fe(1)O4 tetrahedra, and  a cornercorner with one Fe(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 5-22°. In the second Mn site, Mn(2) is bonded to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom to form MnO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra,  a cornercorner with one Fe(1)O4 tetrahedra, and  a cornercorner with one Fe(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 5-22°. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(10), one O(5), one O(7), and one O(9) atom to form FeO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, and corners with two equivalent Fe(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 37-39°. In the second Fe site, Fe(2) is bonded to one O(10), one O(6), one O(8), and one O(9) atom to form FeO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra,  a cornercorner with one Mn(2)O6 octahedra, and corners with two equivalent Fe(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 39-40°. There are ten inequivalent O sites. In the first O site, O(1) is bonded to one Ca(1), one Ca(2), one Ca(3), one Mn(1), and one Mn(2) atom to form distorted OCa3Mn2 square pyramids that share corners with two equivalent O(10)Ca2Fe2 tetrahedra,  an edgeedge with one O(4)Ca3Mn2 square pyramid, and  a faceface with one O(4)Ca3Mn2 square pyramid. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Ca(1), one Ca(2), one Ca(3), one Mn(1), and one Mn(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Ca(1), one Ca(2), one Ca(3), one Mn(1), and one Mn(2) atom. In the fourth O site, O(4) is bonded to one Ca(1), one Ca(2), one Ca(3), one Mn(1), and one Mn(2) atom to form distorted OCa3Mn2 square pyramids that share corners with two equivalent O(10)Ca2Fe2 tetrahedra,  an edgeedge with one O(1)Ca3Mn2 square pyramid, and  a faceface with one O(1)Ca3Mn2 square pyramid. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Ca(1), two equivalent Ca(3), one Mn(1), and one Fe(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Ca(2), one Mn(1), and one Fe(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to two equivalent Ca(2), one Mn(2), and one Fe(1) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Ca(3), two equivalent Ca(1), one Mn(2), and one Fe(2) atom. In the ninth O site, O(9) is bonded in a trigonal non-coplanar geometry to one Ca(1), one Fe(1), and one Fe(2) atom. In the tenth O site, O(10) is bonded to one Ca(2), one Ca(3), one Fe(1), and one Fe(2) atom to form corner-sharing OCa2Fe2 tetrahedra. is represented by the CIF card [CIF]
data_Ca3Mn2(FeO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.417
_cell_length_b   5.620
_cell_length_c   15.348
_cell_angle_alpha   69.878
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   438.708
_cell_formula_units_Z   2
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
  Ca  Ca0  1  0.266  0.573  0.889  1.0
  Ca  Ca1  1  0.764  0.425  0.609  1.0
  Ca  Ca2  1  0.240  0.123  0.404  1.0
  Ca  Ca3  1  0.236  0.425  0.109  1.0
  Ca  Ca4  1  0.734  0.573  0.389  1.0
  Ca  Ca5  1  0.760  0.123  0.904  1.0
  Mn  Mn6  1  0.255  0.992  0.006  1.0
  Mn  Mn7  1  0.745  0.992  0.506  1.0
  Mn  Mn8  1  0.753  0.501  0.006  1.0
  Mn  Mn9  1  0.247  0.501  0.506  1.0
  Fe  Fe10  1  0.305  0.167  0.747  1.0
  Fe  Fe11  1  0.808  0.824  0.749  1.0
  Fe  Fe12  1  0.695  0.167  0.247  1.0
  Fe  Fe13  1  0.192  0.824  0.249  1.0
  O  O14  1  0.011  0.260  0.008  1.0
  O  O15  1  0.503  0.769  0.480  1.0
  O  O16  1  0.013  0.760  0.980  1.0
  O  O17  1  0.511  0.258  0.512  1.0
  O  O18  1  0.497  0.769  0.980  1.0
  O  O19  1  0.989  0.260  0.508  1.0
  O  O20  1  0.489  0.258  0.012  1.0
  O  O21  1  0.988  0.760  0.480  1.0
  O  O22  1  0.235  0.190  0.865  1.0
  O  O23  1  0.733  0.802  0.634  1.0
  O  O24  1  0.776  0.423  0.136  1.0
  O  O25  1  0.272  0.571  0.362  1.0
  O  O26  1  0.267  0.802  0.134  1.0
  O  O27  1  0.765  0.190  0.365  1.0
  O  O28  1  0.728  0.571  0.862  1.0
  O  O29  1  0.224  0.423  0.636  1.0
  O  O30  1  0.153  0.863  0.753  1.0
  O  O31  1  0.663  0.135  0.752  1.0
  O  O32  1  0.847  0.863  0.253  1.0
  O  O33  1  0.337  0.135  0.252  1.0
[/CIF]
.