The crystal structure described by Ba5Mn(Co2O7)2 crystallizes in the monoclinic P2_1/m space group. There are five inequivalent Ba sites. In the first Ba site, Ba(1) is bonded to one O(3), one O(4), two equivalent O(1), two equivalent O(2), three equivalent O(5), and three equivalent O(6) atoms to form distorted BaO12 cuboctahedra that share edges with six equivalent Ba(1)O12 cuboctahedra, edges with three equivalent Co(1)O4 tetrahedra, edges with three equivalent Co(2)O4 tetrahedra,  a faceface with one Mn(1)O6 octahedra, and  a faceface with one Co(3)O6 octahedra. In the second Ba site, Ba(2) is bonded in a 12-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(8), three equivalent O(9), and four equivalent O(7) atoms. In the third Ba site, Ba(3) is bonded in a 12-coordinate geometry to one O(4), two equivalent O(2), two equivalent O(7), three equivalent O(10), and four equivalent O(8) atoms. In the fourth Ba site, Ba(4) is bonded in a 10-coordinate geometry to one O(5), one O(9), two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(7) atoms. In the fifth Ba site, Ba(5) is bonded in a 10-coordinate geometry to one O(10), one O(6), two equivalent O(1), two equivalent O(2), two equivalent O(4), and two equivalent O(8) atoms. Mn(1) is bonded to one O(4), one O(9), two equivalent O(1), and two equivalent O(8) atoms to form MnO6 octahedra that share  a cornercorner with one Co(2)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra,  a faceface with one Ba(1)O12 cuboctahedra, and  a faceface with one Co(4)O6 octahedra. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(3), one O(5), and two equivalent O(1) atoms to form CoO4 tetrahedra that share  a cornercorner with one Co(3)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 14-16°. In the second Co site, Co(2) is bonded to one O(4), one O(6), and two equivalent O(2) atoms to form CoO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with two equivalent Co(3)O6 octahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 13-16°. In the third Co site, Co(3) is bonded to one O(10), one O(3), two equivalent O(2), and two equivalent O(7) atoms to form CoO6 octahedra that share  a cornercorner with one Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra,  a faceface with one Ba(1)O12 cuboctahedra, and  a faceface with one Co(4)O6 octahedra. In the fourth Co site, Co(4) is bonded to one O(10), one O(9), two equivalent O(7), and two equivalent O(8) atoms to form CoO6 octahedra that share  a faceface with one Mn(1)O6 octahedra and  a faceface with one Co(3)O6 octahedra. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(2), one Ba(4), one Ba(5), one Mn(1), and one Co(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(3), one Ba(4), one Ba(5), one Co(2), and one Co(3) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(2), two equivalent Ba(4), one Co(1), and one Co(3) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(3), two equivalent Ba(5), one Mn(1), and one Co(2) atom. In the fifth O site, O(5) is bonded in a 1-coordinate geometry to one Ba(4), three equivalent Ba(1), and one Co(1) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Ba(5), three equivalent Ba(1), and one Co(2) atom. In the seventh O site, O(7) is bonded to one Ba(3), one Ba(4), two equivalent Ba(2), one Co(3), and one Co(4) atom to form a mixture of distorted edge, face, and corner-sharing OBa4Co2 octahedra. The corner-sharing octahedral tilt angles range from 52-60°. In the eighth O site, O(8) is bonded in a 6-coordinate geometry to one Ba(2), one Ba(5), two equivalent Ba(3), one Mn(1), and one Co(4) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Ba(4), three equivalent Ba(2), one Mn(1), and one Co(4) atom. In the tenth O site, O(10) is bonded to one Ba(5), three equivalent Ba(3), one Co(3), and one Co(4) atom to form a mixture of distorted edge, face, and corner-sharing OBa4Co2 octahedra. The corner-sharing octahedral tilt angles range from 11-60°. is represented by the CIF card [CIF]
data_Ba5Mn(Co2O7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.790
_cell_length_b   10.017
_cell_length_c   12.090
_cell_angle_alpha   89.947
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   701.146
_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
  Ba  Ba0  1  0.750  0.749  0.999  1.0
  Ba  Ba1  1  0.250  0.251  0.001  1.0
  Ba  Ba2  1  0.750  0.082  0.578  1.0
  Ba  Ba3  1  0.250  0.585  0.578  1.0
  Ba  Ba4  1  0.250  0.918  0.422  1.0
  Ba  Ba5  1  0.750  0.415  0.422  1.0
  Ba  Ba6  1  0.750  0.087  0.230  1.0
  Ba  Ba7  1  0.250  0.580  0.229  1.0
  Ba  Ba8  1  0.250  0.913  0.770  1.0
  Ba  Ba9  1  0.750  0.420  0.771  1.0
  Mn  Mn10  1  0.250  0.250  0.706  1.0
  Mn  Mn11  1  0.750  0.750  0.294  1.0
  Co  Co12  1  0.750  0.085  0.862  1.0
  Co  Co13  1  0.250  0.582  0.863  1.0
  Co  Co14  1  0.250  0.915  0.138  1.0
  Co  Co15  1  0.750  0.418  0.137  1.0
  Co  Co16  1  0.750  0.749  0.703  1.0
  Co  Co17  1  0.250  0.251  0.297  1.0
  Co  Co18  1  0.750  0.750  0.501  1.0
  Co  Co19  1  0.250  0.250  0.499  1.0
  O  O20  1  0.006  0.169  0.804  1.0
  O  O21  1  0.504  0.668  0.808  1.0
  O  O22  1  0.494  0.169  0.804  1.0
  O  O23  1  0.996  0.668  0.808  1.0
  O  O24  1  0.750  0.917  0.808  1.0
  O  O25  1  0.250  0.412  0.804  1.0
  O  O26  1  0.994  0.831  0.196  1.0
  O  O27  1  0.496  0.332  0.192  1.0
  O  O28  1  0.506  0.831  0.196  1.0
  O  O29  1  0.004  0.332  0.192  1.0
  O  O30  1  0.250  0.083  0.192  1.0
  O  O31  1  0.750  0.588  0.196  1.0
  O  O32  1  0.750  0.085  0.005  1.0
  O  O33  1  0.250  0.581  0.007  1.0
  O  O34  1  0.250  0.915  0.995  1.0
  O  O35  1  0.750  0.419  0.993  1.0
  O  O36  1  0.025  0.175  0.400  1.0
  O  O37  1  0.530  0.676  0.395  1.0
  O  O38  1  0.475  0.175  0.400  1.0
  O  O39  1  0.970  0.676  0.395  1.0
  O  O40  1  0.750  0.896  0.395  1.0
  O  O41  1  0.250  0.402  0.402  1.0
  O  O42  1  0.975  0.825  0.600  1.0
  O  O43  1  0.470  0.324  0.605  1.0
  O  O44  1  0.525  0.825  0.600  1.0
  O  O45  1  0.030  0.324  0.605  1.0
  O  O46  1  0.250  0.104  0.605  1.0
  O  O47  1  0.750  0.598  0.598  1.0
[/CIF]
.
The crystal structure described by Ba5Mn(Co2O7)2 crystallizes in the monoclinic P2_1/m space group. There are five inequivalent Ba sites. In the first Ba site, Ba(1) is bonded to one O(3), one O(4), two equivalent O(1), two equivalent O(2), three equivalent O(5), and three equivalent O(6) atoms to form distorted BaO12 cuboctahedra that share edges with six equivalent Ba(1)O12 cuboctahedra, edges with three equivalent Co(1)O4 tetrahedra, edges with three equivalent Co(2)O4 tetrahedra,  a faceface with one Mn(1)O6 octahedra, and  a faceface with one Co(3)O6 octahedra. In the second Ba site, Ba(2) is bonded in a 12-coordinate geometry to one O(3), two equivalent O(1), two equivalent O(8), three equivalent O(9), and four equivalent O(7) atoms. In the third Ba site, Ba(3) is bonded in a 12-coordinate geometry to one O(4), two equivalent O(2), two equivalent O(7), three equivalent O(10), and four equivalent O(8) atoms. In the fourth Ba site, Ba(4) is bonded in a 10-coordinate geometry to one O(5), one O(9), two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(7) atoms. In the fifth Ba site, Ba(5) is bonded in a 10-coordinate geometry to one O(10), one O(6), two equivalent O(1), two equivalent O(2), two equivalent O(4), and two equivalent O(8) atoms. Mn(1) is bonded to one O(4), one O(9), two equivalent O(1), and two equivalent O(8) atoms to form MnO6 octahedra that share  a cornercorner with one Co(2)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra,  a faceface with one Ba(1)O12 cuboctahedra, and  a faceface with one Co(4)O6 octahedra. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(3), one O(5), and two equivalent O(1) atoms to form CoO4 tetrahedra that share  a cornercorner with one Co(3)O6 octahedra, corners with two equivalent Mn(1)O6 octahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 14-16°. In the second Co site, Co(2) is bonded to one O(4), one O(6), and two equivalent O(2) atoms to form CoO4 tetrahedra that share  a cornercorner with one Mn(1)O6 octahedra, corners with two equivalent Co(3)O6 octahedra, and edges with three equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 13-16°. In the third Co site, Co(3) is bonded to one O(10), one O(3), two equivalent O(2), and two equivalent O(7) atoms to form CoO6 octahedra that share  a cornercorner with one Co(1)O4 tetrahedra, corners with two equivalent Co(2)O4 tetrahedra,  a faceface with one Ba(1)O12 cuboctahedra, and  a faceface with one Co(4)O6 octahedra. In the fourth Co site, Co(4) is bonded to one O(10), one O(9), two equivalent O(7), and two equivalent O(8) atoms to form CoO6 octahedra that share  a faceface with one Mn(1)O6 octahedra and  a faceface with one Co(3)O6 octahedra. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(2), one Ba(4), one Ba(5), one Mn(1), and one Co(1) atom. In the second O site, O(2) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(3), one Ba(4), one Ba(5), one Co(2), and one Co(3) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(2), two equivalent Ba(4), one Co(1), and one Co(3) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Ba(1), one Ba(3), two equivalent Ba(5), one Mn(1), and one Co(2) atom. In the fifth O site, O(5) is bonded in a 1-coordinate geometry to one Ba(4), three equivalent Ba(1), and one Co(1) atom. In the sixth O site, O(6) is bonded in a 2-coordinate geometry to one Ba(5), three equivalent Ba(1), and one Co(2) atom. In the seventh O site, O(7) is bonded to one Ba(3), one Ba(4), two equivalent Ba(2), one Co(3), and one Co(4) atom to form a mixture of distorted edge, face, and corner-sharing OBa4Co2 octahedra. The corner-sharing octahedral tilt angles range from 52-60°. In the eighth O site, O(8) is bonded in a 6-coordinate geometry to one Ba(2), one Ba(5), two equivalent Ba(3), one Mn(1), and one Co(4) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Ba(4), three equivalent Ba(2), one Mn(1), and one Co(4) atom. In the tenth O site, O(10) is bonded to one Ba(5), three equivalent Ba(3), one Co(3), and one Co(4) atom to form a mixture of distorted edge, face, and corner-sharing OBa4Co2 octahedra. The corner-sharing octahedral tilt angles range from 11-60°. is represented by the CIF card [CIF]
data_Ba5Mn(Co2O7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.790
_cell_length_b   10.017
_cell_length_c   12.090
_cell_angle_alpha   89.947
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   701.146
_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
  Ba  Ba0  1  0.750  0.749  0.999  1.0
  Ba  Ba1  1  0.250  0.251  0.001  1.0
  Ba  Ba2  1  0.750  0.082  0.578  1.0
  Ba  Ba3  1  0.250  0.585  0.578  1.0
  Ba  Ba4  1  0.250  0.918  0.422  1.0
  Ba  Ba5  1  0.750  0.415  0.422  1.0
  Ba  Ba6  1  0.750  0.087  0.230  1.0
  Ba  Ba7  1  0.250  0.580  0.229  1.0
  Ba  Ba8  1  0.250  0.913  0.770  1.0
  Ba  Ba9  1  0.750  0.420  0.771  1.0
  Mn  Mn10  1  0.250  0.250  0.706  1.0
  Mn  Mn11  1  0.750  0.750  0.294  1.0
  Co  Co12  1  0.750  0.085  0.862  1.0
  Co  Co13  1  0.250  0.582  0.863  1.0
  Co  Co14  1  0.250  0.915  0.138  1.0
  Co  Co15  1  0.750  0.418  0.137  1.0
  Co  Co16  1  0.750  0.749  0.703  1.0
  Co  Co17  1  0.250  0.251  0.297  1.0
  Co  Co18  1  0.750  0.750  0.501  1.0
  Co  Co19  1  0.250  0.250  0.499  1.0
  O  O20  1  0.006  0.169  0.804  1.0
  O  O21  1  0.504  0.668  0.808  1.0
  O  O22  1  0.494  0.169  0.804  1.0
  O  O23  1  0.996  0.668  0.808  1.0
  O  O24  1  0.750  0.917  0.808  1.0
  O  O25  1  0.250  0.412  0.804  1.0
  O  O26  1  0.994  0.831  0.196  1.0
  O  O27  1  0.496  0.332  0.192  1.0
  O  O28  1  0.506  0.831  0.196  1.0
  O  O29  1  0.004  0.332  0.192  1.0
  O  O30  1  0.250  0.083  0.192  1.0
  O  O31  1  0.750  0.588  0.196  1.0
  O  O32  1  0.750  0.085  0.005  1.0
  O  O33  1  0.250  0.581  0.007  1.0
  O  O34  1  0.250  0.915  0.995  1.0
  O  O35  1  0.750  0.419  0.993  1.0
  O  O36  1  0.025  0.175  0.400  1.0
  O  O37  1  0.530  0.676  0.395  1.0
  O  O38  1  0.475  0.175  0.400  1.0
  O  O39  1  0.970  0.676  0.395  1.0
  O  O40  1  0.750  0.896  0.395  1.0
  O  O41  1  0.250  0.402  0.402  1.0
  O  O42  1  0.975  0.825  0.600  1.0
  O  O43  1  0.470  0.324  0.605  1.0
  O  O44  1  0.525  0.825  0.600  1.0
  O  O45  1  0.030  0.324  0.605  1.0
  O  O46  1  0.250  0.104  0.605  1.0
  O  O47  1  0.750  0.598  0.598  1.0
[/CIF]
.