The structure described by Eu3Ba2Mn2Cu2O12 crystallizes in the tetragonal I4/mmm space group. Ba(1) is bonded to four equivalent O(1), four equivalent O(3), and four equivalent O(4) atoms to form BaO12 cuboctahedra that share corners with four equivalent Ba(1)O12 cuboctahedra, faces with four equivalent Ba(1)O12 cuboctahedra, faces with four equivalent Mn(1)O6 octahedra, and faces with four equivalent Cu(1)O5 square pyramids. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a body-centered cubic geometry to eight equivalent O(3) atoms. In the second Eu site, Eu(2) is bonded in a 9-coordinate geometry to four equivalent O(1) and five equivalent O(2) atoms. Mn(1) is bonded to one O(2), one O(4), and four equivalent O(1) atoms to form MnO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra,  a cornercorner with one Cu(1)O5 square pyramid, and faces with four equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 10°. Cu(1) is bonded to one O(4) and four equivalent O(3) atoms to form CuO5 square pyramids that share  a cornercorner with one Mn(1)O6 octahedra, corners with four equivalent Cu(1)O5 square pyramids, and faces with four equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Ba(1), two equivalent Eu(2), and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded to five equivalent Eu(2) and one Mn(1) atom to form distorted OEu5Mn octahedra that share  a cornercorner with one O(4)Ba4MnCu octahedra, corners with four equivalent O(2)Eu5Mn octahedra, and edges with eight equivalent O(2)Eu5Mn octahedra. The corner-sharing octahedral tilt angles range from 0-15°. In the third O site, O(3) is bonded in a 6-coordinate geometry to two equivalent Ba(1), two equivalent Eu(1), and two equivalent Cu(1) atoms. In the fourth O site, O(4) is bonded to four equivalent Ba(1), one Mn(1), and one Cu(1) atom to form distorted OBa4MnCu octahedra that share  a cornercorner with one O(2)Eu5Mn octahedra, corners with four equivalent O(4)Ba4MnCu octahedra, and edges with four equivalent O(4)Ba4MnCu octahedra. The corner-sharing octahedral tilt angles range from 0-13°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ba2Eu3Mn2(CuO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   18.287
_cell_length_b   18.287
_cell_length_c   18.287
_cell_angle_alpha   167.741
_cell_angle_beta   167.741
_cell_angle_gamma   17.370
_symmetry_Int_Tables_number   1
_cell_volume   275.670
_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
  Ba  Ba0  1  0.605  0.605  0.000  1.0
  Ba  Ba1  1  0.395  0.395  0.000  1.0
  Eu  Eu2  1  0.500  0.500  0.000  1.0
  Eu  Eu3  1  0.713  0.713  0.000  1.0
  Eu  Eu4  1  0.287  0.287  0.000  1.0
  Mn  Mn5  1  0.165  0.165  0.000  1.0
  Mn  Mn6  1  0.835  0.835  0.000  1.0
  Cu  Cu7  1  0.952  0.952  0.000  1.0
  Cu  Cu8  1  0.048  0.048  0.000  1.0
  O  O9  1  0.330  0.830  0.500  1.0
  O  O10  1  0.223  0.223  0.000  1.0
  O  O11  1  0.542  0.042  0.500  1.0
  O  O12  1  0.886  0.886  0.000  1.0
  O  O13  1  0.170  0.670  0.500  1.0
  O  O14  1  0.830  0.330  0.500  1.0
  O  O15  1  0.958  0.458  0.500  1.0
  O  O16  1  0.042  0.542  0.500  1.0
  O  O17  1  0.777  0.777  0.000  1.0
  O  O18  1  0.458  0.958  0.500  1.0
  O  O19  1  0.114  0.114  0.000  1.0
  O  O20  1  0.670  0.170  0.500  1.0
[/CIF]
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The structure described by Eu3Ba2Mn2Cu2O12 crystallizes in the tetragonal I4/mmm space group. Ba(1) is bonded to four equivalent O(1), four equivalent O(3), and four equivalent O(4) atoms to form BaO12 cuboctahedra that share corners with four equivalent Ba(1)O12 cuboctahedra, faces with four equivalent Ba(1)O12 cuboctahedra, faces with four equivalent Mn(1)O6 octahedra, and faces with four equivalent Cu(1)O5 square pyramids. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a body-centered cubic geometry to eight equivalent O(3) atoms. In the second Eu site, Eu(2) is bonded in a 9-coordinate geometry to four equivalent O(1) and five equivalent O(2) atoms. Mn(1) is bonded to one O(2), one O(4), and four equivalent O(1) atoms to form MnO6 octahedra that share corners with four equivalent Mn(1)O6 octahedra,  a cornercorner with one Cu(1)O5 square pyramid, and faces with four equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles are 10°. Cu(1) is bonded to one O(4) and four equivalent O(3) atoms to form CuO5 square pyramids that share  a cornercorner with one Mn(1)O6 octahedra, corners with four equivalent Cu(1)O5 square pyramids, and faces with four equivalent Ba(1)O12 cuboctahedra. The corner-sharing octahedra are not tilted. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent Ba(1), two equivalent Eu(2), and two equivalent Mn(1) atoms. In the second O site, O(2) is bonded to five equivalent Eu(2) and one Mn(1) atom to form distorted OEu5Mn octahedra that share  a cornercorner with one O(4)Ba4MnCu octahedra, corners with four equivalent O(2)Eu5Mn octahedra, and edges with eight equivalent O(2)Eu5Mn octahedra. The corner-sharing octahedral tilt angles range from 0-15°. In the third O site, O(3) is bonded in a 6-coordinate geometry to two equivalent Ba(1), two equivalent Eu(1), and two equivalent Cu(1) atoms. In the fourth O site, O(4) is bonded to four equivalent Ba(1), one Mn(1), and one Cu(1) atom to form distorted OBa4MnCu octahedra that share  a cornercorner with one O(2)Eu5Mn octahedra, corners with four equivalent O(4)Ba4MnCu octahedra, and edges with four equivalent O(4)Ba4MnCu octahedra. The corner-sharing octahedral tilt angles range from 0-13°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ba2Eu3Mn2(CuO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   18.287
_cell_length_b   18.287
_cell_length_c   18.287
_cell_angle_alpha   167.741
_cell_angle_beta   167.741
_cell_angle_gamma   17.370
_symmetry_Int_Tables_number   1
_cell_volume   275.670
_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
  Ba  Ba0  1  0.605  0.605  0.000  1.0
  Ba  Ba1  1  0.395  0.395  0.000  1.0
  Eu  Eu2  1  0.500  0.500  0.000  1.0
  Eu  Eu3  1  0.713  0.713  0.000  1.0
  Eu  Eu4  1  0.287  0.287  0.000  1.0
  Mn  Mn5  1  0.165  0.165  0.000  1.0
  Mn  Mn6  1  0.835  0.835  0.000  1.0
  Cu  Cu7  1  0.952  0.952  0.000  1.0
  Cu  Cu8  1  0.048  0.048  0.000  1.0
  O  O9  1  0.330  0.830  0.500  1.0
  O  O10  1  0.223  0.223  0.000  1.0
  O  O11  1  0.542  0.042  0.500  1.0
  O  O12  1  0.886  0.886  0.000  1.0
  O  O13  1  0.170  0.670  0.500  1.0
  O  O14  1  0.830  0.330  0.500  1.0
  O  O15  1  0.958  0.458  0.500  1.0
  O  O16  1  0.042  0.542  0.500  1.0
  O  O17  1  0.777  0.777  0.000  1.0
  O  O18  1  0.458  0.958  0.500  1.0
  O  O19  1  0.114  0.114  0.000  1.0
  O  O20  1  0.670  0.170  0.500  1.0
[/CIF]
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