The structure described by BaYb2CoO5 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 Yb sites. In the first Yb site, Yb(1) is bonded to one O(1), two equivalent O(2), and four equivalent O(3) atoms to form distorted YbO7 pentagonal bipyramids that share corners with five equivalent Co(1)O5 trigonal bipyramids, edges with two equivalent Yb(1)O7 pentagonal bipyramids, and  an edgeedge with one Co(1)O5 trigonal bipyramid. In the second Yb site, Yb(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 CoO5 trigonal bipyramids that share corners with five equivalent Yb(1)O7 pentagonal bipyramids and  an edgeedge with one Yb(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 Yb(1), one Yb(2), and one Co(1) atom to form a mixture of distorted edge and corner-sharing OBa3Yb2Co octahedra. The corner-sharing octahedral tilt angles are 5°. In the second O site, O(2) is bonded in a 6-coordinate geometry to two equivalent Ba(1), one Yb(1), two equivalent Yb(2), and one Co(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Ba(1), one Yb(2), two equivalent Yb(1), and one Co(1) atom. is represented by the CIF card [CIF]
data_BaYb2CoO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.659
_cell_length_b   7.027
_cell_length_c   12.162
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   483.633
_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  0.250  0.928  0.895  1.0
  Ba  Ba1  1  0.750  0.072  0.105  1.0
  Ba  Ba2  1  0.750  0.428  0.605  1.0
  Ba  Ba3  1  0.250  0.572  0.395  1.0
  Yb  Yb4  1  0.250  0.106  0.574  1.0
  Yb  Yb5  1  0.750  0.894  0.426  1.0
  Yb  Yb6  1  0.750  0.606  0.926  1.0
  Yb  Yb7  1  0.250  0.394  0.074  1.0
  Yb  Yb8  1  0.250  0.383  0.798  1.0
  Yb  Yb9  1  0.750  0.617  0.202  1.0
  Yb  Yb10  1  0.750  0.883  0.702  1.0
  Yb  Yb11  1  0.250  0.117  0.298  1.0
  Co  Co12  1  0.250  0.692  0.653  1.0
  Co  Co13  1  0.750  0.308  0.347  1.0
  Co  Co14  1  0.750  0.192  0.847  1.0
  Co  Co15  1  0.250  0.808  0.153  1.0
  O  O16  1  0.250  0.445  0.603  1.0
  O  O17  1  0.750  0.555  0.397  1.0
  O  O18  1  0.750  0.945  0.897  1.0
  O  O19  1  0.250  0.055  0.103  1.0
  O  O20  1  0.019  0.842  0.266  1.0
  O  O21  1  0.519  0.158  0.734  1.0
  O  O22  1  0.981  0.342  0.234  1.0
  O  O23  1  0.481  0.658  0.766  1.0
  O  O24  1  0.981  0.158  0.734  1.0
  O  O25  1  0.481  0.842  0.266  1.0
  O  O26  1  0.019  0.658  0.766  1.0
  O  O27  1  0.519  0.342  0.234  1.0
  O  O28  1  0.477  0.682  0.066  1.0
  O  O29  1  0.977  0.318  0.934  1.0
  O  O30  1  0.523  0.182  0.434  1.0
  O  O31  1  0.023  0.818  0.566  1.0
  O  O32  1  0.977  0.182  0.434  1.0
  O  O33  1  0.477  0.818  0.566  1.0
  O  O34  1  0.023  0.682  0.066  1.0
  O  O35  1  0.523  0.318  0.934  1.0
[/CIF]
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The structure described by BaYb2CoO5 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 Yb sites. In the first Yb site, Yb(1) is bonded to one O(1), two equivalent O(2), and four equivalent O(3) atoms to form distorted YbO7 pentagonal bipyramids that share corners with five equivalent Co(1)O5 trigonal bipyramids, edges with two equivalent Yb(1)O7 pentagonal bipyramids, and  an edgeedge with one Co(1)O5 trigonal bipyramid. In the second Yb site, Yb(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 CoO5 trigonal bipyramids that share corners with five equivalent Yb(1)O7 pentagonal bipyramids and  an edgeedge with one Yb(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 Yb(1), one Yb(2), and one Co(1) atom to form a mixture of distorted edge and corner-sharing OBa3Yb2Co octahedra. The corner-sharing octahedral tilt angles are 5°. In the second O site, O(2) is bonded in a 6-coordinate geometry to two equivalent Ba(1), one Yb(1), two equivalent Yb(2), and one Co(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Ba(1), one Yb(2), two equivalent Yb(1), and one Co(1) atom. is represented by the CIF card [CIF]
data_BaYb2CoO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.659
_cell_length_b   7.027
_cell_length_c   12.162
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   483.633
_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  0.250  0.928  0.895  1.0
  Ba  Ba1  1  0.750  0.072  0.105  1.0
  Ba  Ba2  1  0.750  0.428  0.605  1.0
  Ba  Ba3  1  0.250  0.572  0.395  1.0
  Yb  Yb4  1  0.250  0.106  0.574  1.0
  Yb  Yb5  1  0.750  0.894  0.426  1.0
  Yb  Yb6  1  0.750  0.606  0.926  1.0
  Yb  Yb7  1  0.250  0.394  0.074  1.0
  Yb  Yb8  1  0.250  0.383  0.798  1.0
  Yb  Yb9  1  0.750  0.617  0.202  1.0
  Yb  Yb10  1  0.750  0.883  0.702  1.0
  Yb  Yb11  1  0.250  0.117  0.298  1.0
  Co  Co12  1  0.250  0.692  0.653  1.0
  Co  Co13  1  0.750  0.308  0.347  1.0
  Co  Co14  1  0.750  0.192  0.847  1.0
  Co  Co15  1  0.250  0.808  0.153  1.0
  O  O16  1  0.250  0.445  0.603  1.0
  O  O17  1  0.750  0.555  0.397  1.0
  O  O18  1  0.750  0.945  0.897  1.0
  O  O19  1  0.250  0.055  0.103  1.0
  O  O20  1  0.019  0.842  0.266  1.0
  O  O21  1  0.519  0.158  0.734  1.0
  O  O22  1  0.981  0.342  0.234  1.0
  O  O23  1  0.481  0.658  0.766  1.0
  O  O24  1  0.981  0.158  0.734  1.0
  O  O25  1  0.481  0.842  0.266  1.0
  O  O26  1  0.019  0.658  0.766  1.0
  O  O27  1  0.519  0.342  0.234  1.0
  O  O28  1  0.477  0.682  0.066  1.0
  O  O29  1  0.977  0.318  0.934  1.0
  O  O30  1  0.523  0.182  0.434  1.0
  O  O31  1  0.023  0.818  0.566  1.0
  O  O32  1  0.977  0.182  0.434  1.0
  O  O33  1  0.477  0.818  0.566  1.0
  O  O34  1  0.023  0.682  0.066  1.0
  O  O35  1  0.523  0.318  0.934  1.0
[/CIF]
.