The structure described by Dy2BaCoO5 crystallizes in the orthorhombic Pnma space group. Ba(1) is bonded in a 11-coordinate geometry to three equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to one O(1), two equivalent O(2), and four equivalent O(3) atoms to form distorted DyO7 pentagonal bipyramids that share corners with five equivalent Co(1)O5 trigonal bipyramids, edges with two equivalent Dy(1)O7 pentagonal bipyramids, and  an edgeedge with one Co(1)O5 trigonal bipyramid. In the second Dy site, Dy(2) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(3), and four equivalent O(2) atoms. Co(1) is bonded to one O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted CoO5 trigonal bipyramids that share corners with five equivalent Dy(1)O7 pentagonal bipyramids and  an edgeedge with one Dy(1)O7 pentagonal bipyramid. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Ba(1), one Dy(1), one Dy(2), and one Co(1) atom to form distorted OBa3Dy2Co octahedra that share corners with two equivalent O(1)Ba3Dy2Co octahedra, corners with eight equivalent O(2)Ba2Dy3Co octahedra, edges with two equivalent O(1)Ba3Dy2Co octahedra, and faces with four equivalent O(2)Ba2Dy3Co octahedra. The corner-sharing octahedral tilt angles range from 1-63°. In the second O site, O(2) is bonded to two equivalent Ba(1), one Dy(1), two equivalent Dy(2), and one Co(1) atom to form distorted OBa2Dy3Co octahedra that share corners with four equivalent O(2)Ba2Dy3Co octahedra, corners with four equivalent O(1)Ba3Dy2Co octahedra, edges with two equivalent O(2)Ba2Dy3Co octahedra, faces with two equivalent O(2)Ba2Dy3Co octahedra, and faces with two equivalent O(1)Ba3Dy2Co octahedra. The corner-sharing octahedral tilt angles range from 25-78°. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Ba(1), one Dy(2), two equivalent Dy(1), and one Co(1) atom. is represented by the CIF file [CIF]
data_BaDy2CoO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.694
_cell_length_b   7.031
_cell_length_c   12.235
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.993
_symmetry_Int_Tables_number   1
_cell_volume   489.853
_cell_formula_units_Z   4
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  0.078  0.100  1.0
  Ba  Ba1  1  0.750  0.422  0.600  1.0
  Ba  Ba2  1  0.250  0.578  0.400  1.0
  Ba  Ba3  1  0.250  0.922  0.900  1.0
  Dy  Dy4  1  0.250  0.402  0.075  1.0
  Dy  Dy5  1  0.750  0.619  0.208  1.0
  Dy  Dy6  1  0.750  0.881  0.708  1.0
  Dy  Dy7  1  0.250  0.119  0.292  1.0
  Dy  Dy8  1  0.750  0.598  0.925  1.0
  Dy  Dy9  1  0.750  0.902  0.425  1.0
  Dy  Dy10  1  0.250  0.098  0.575  1.0
  Dy  Dy11  1  0.250  0.381  0.792  1.0
  Co  Co12  1  0.250  0.807  0.153  1.0
  Co  Co13  1  0.750  0.193  0.847  1.0
  Co  Co14  1  0.750  0.307  0.347  1.0
  Co  Co15  1  0.250  0.693  0.653  1.0
  O  O16  1  0.250  0.425  0.603  1.0
  O  O17  1  0.750  0.575  0.397  1.0
  O  O18  1  0.750  0.925  0.897  1.0
  O  O19  1  0.250  0.075  0.103  1.0
  O  O20  1  0.002  0.860  0.275  1.0
  O  O21  1  0.502  0.139  0.725  1.0
  O  O22  1  0.998  0.361  0.225  1.0
  O  O23  1  0.498  0.640  0.775  1.0
  O  O24  1  0.998  0.140  0.725  1.0
  O  O25  1  0.498  0.861  0.275  1.0
  O  O26  1  0.002  0.639  0.775  1.0
  O  O27  1  0.502  0.360  0.225  1.0
  O  O28  1  0.496  0.667  0.066  1.0
  O  O29  1  0.996  0.333  0.935  1.0
  O  O30  1  0.504  0.167  0.435  1.0
  O  O31  1  0.004  0.833  0.565  1.0
  O  O32  1  0.996  0.167  0.434  1.0
  O  O33  1  0.496  0.833  0.565  1.0
  O  O34  1  0.504  0.333  0.935  1.0
  O  O35  1  0.004  0.667  0.065  1.0
[/CIF]
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The structure described by Dy2BaCoO5 crystallizes in the orthorhombic Pnma space group. Ba(1) is bonded in a 11-coordinate geometry to three equivalent O(1), four equivalent O(2), and four equivalent O(3) atoms. There are two inequivalent Dy sites. In the first Dy site, Dy(1) is bonded to one O(1), two equivalent O(2), and four equivalent O(3) atoms to form distorted DyO7 pentagonal bipyramids that share corners with five equivalent Co(1)O5 trigonal bipyramids, edges with two equivalent Dy(1)O7 pentagonal bipyramids, and  an edgeedge with one Co(1)O5 trigonal bipyramid. In the second Dy site, Dy(2) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(3), and four equivalent O(2) atoms. Co(1) is bonded to one O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted CoO5 trigonal bipyramids that share corners with five equivalent Dy(1)O7 pentagonal bipyramids and  an edgeedge with one Dy(1)O7 pentagonal bipyramid. There are three inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Ba(1), one Dy(1), one Dy(2), and one Co(1) atom to form distorted OBa3Dy2Co octahedra that share corners with two equivalent O(1)Ba3Dy2Co octahedra, corners with eight equivalent O(2)Ba2Dy3Co octahedra, edges with two equivalent O(1)Ba3Dy2Co octahedra, and faces with four equivalent O(2)Ba2Dy3Co octahedra. The corner-sharing octahedral tilt angles range from 1-63°. In the second O site, O(2) is bonded to two equivalent Ba(1), one Dy(1), two equivalent Dy(2), and one Co(1) atom to form distorted OBa2Dy3Co octahedra that share corners with four equivalent O(2)Ba2Dy3Co octahedra, corners with four equivalent O(1)Ba3Dy2Co octahedra, edges with two equivalent O(2)Ba2Dy3Co octahedra, faces with two equivalent O(2)Ba2Dy3Co octahedra, and faces with two equivalent O(1)Ba3Dy2Co octahedra. The corner-sharing octahedral tilt angles range from 25-78°. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Ba(1), one Dy(2), two equivalent Dy(1), and one Co(1) atom. is represented by the CIF file [CIF]
data_BaDy2CoO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.694
_cell_length_b   7.031
_cell_length_c   12.235
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.993
_symmetry_Int_Tables_number   1
_cell_volume   489.853
_cell_formula_units_Z   4
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  0.078  0.100  1.0
  Ba  Ba1  1  0.750  0.422  0.600  1.0
  Ba  Ba2  1  0.250  0.578  0.400  1.0
  Ba  Ba3  1  0.250  0.922  0.900  1.0
  Dy  Dy4  1  0.250  0.402  0.075  1.0
  Dy  Dy5  1  0.750  0.619  0.208  1.0
  Dy  Dy6  1  0.750  0.881  0.708  1.0
  Dy  Dy7  1  0.250  0.119  0.292  1.0
  Dy  Dy8  1  0.750  0.598  0.925  1.0
  Dy  Dy9  1  0.750  0.902  0.425  1.0
  Dy  Dy10  1  0.250  0.098  0.575  1.0
  Dy  Dy11  1  0.250  0.381  0.792  1.0
  Co  Co12  1  0.250  0.807  0.153  1.0
  Co  Co13  1  0.750  0.193  0.847  1.0
  Co  Co14  1  0.750  0.307  0.347  1.0
  Co  Co15  1  0.250  0.693  0.653  1.0
  O  O16  1  0.250  0.425  0.603  1.0
  O  O17  1  0.750  0.575  0.397  1.0
  O  O18  1  0.750  0.925  0.897  1.0
  O  O19  1  0.250  0.075  0.103  1.0
  O  O20  1  0.002  0.860  0.275  1.0
  O  O21  1  0.502  0.139  0.725  1.0
  O  O22  1  0.998  0.361  0.225  1.0
  O  O23  1  0.498  0.640  0.775  1.0
  O  O24  1  0.998  0.140  0.725  1.0
  O  O25  1  0.498  0.861  0.275  1.0
  O  O26  1  0.002  0.639  0.775  1.0
  O  O27  1  0.502  0.360  0.225  1.0
  O  O28  1  0.496  0.667  0.066  1.0
  O  O29  1  0.996  0.333  0.935  1.0
  O  O30  1  0.504  0.167  0.435  1.0
  O  O31  1  0.004  0.833  0.565  1.0
  O  O32  1  0.996  0.167  0.434  1.0
  O  O33  1  0.496  0.833  0.565  1.0
  O  O34  1  0.504  0.333  0.935  1.0
  O  O35  1  0.004  0.667  0.065  1.0
[/CIF]
.