The material structure described by BaEu2CoO5 crystallizes in the orthorhombic Immm space group. Ba(1) is bonded in a distorted q6 geometry to two equivalent O(2) and eight equivalent O(1) atoms. Eu(1) is bonded in a 7-coordinate geometry to one O(2) and six equivalent O(1) atoms. Co(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing CoO6 octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Ba(1), three equivalent Eu(1), and one Co(1) atom to form a mixture of distorted edge, corner, and face-sharing OBa2Eu3Co octahedra. The corner-sharing octahedral tilt angles range from 0-68°. In the second O site, O(2) is bonded in a 6-coordinate geometry to two equivalent Ba(1), two equivalent Eu(1), and two equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_BaEu2CoO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.866
_cell_length_b   6.866
_cell_length_c   6.866
_cell_angle_alpha   148.109
_cell_angle_beta   128.401
_cell_angle_gamma   61.952
_symmetry_Int_Tables_number   1
_cell_volume   132.726
_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  0.000  0.000  0.000  1.0
  Eu  Eu1  1  0.707  0.207  0.500  1.0
  Eu  Eu2  1  0.293  0.793  0.500  1.0
  Co  Co3  1  0.500  0.500  0.000  1.0
  O  O4  1  0.119  0.359  0.760  1.0
  O  O5  1  0.881  0.641  0.240  1.0
  O  O6  1  0.400  0.641  0.760  1.0
  O  O7  1  0.600  0.359  0.240  1.0
  O  O8  1  0.500  0.000  0.500  1.0
[/CIF]
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The material structure described by BaEu2CoO5 crystallizes in the orthorhombic Immm space group. Ba(1) is bonded in a distorted q6 geometry to two equivalent O(2) and eight equivalent O(1) atoms. Eu(1) is bonded in a 7-coordinate geometry to one O(2) and six equivalent O(1) atoms. Co(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form corner-sharing CoO6 octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Ba(1), three equivalent Eu(1), and one Co(1) atom to form a mixture of distorted edge, corner, and face-sharing OBa2Eu3Co octahedra. The corner-sharing octahedral tilt angles range from 0-68°. In the second O site, O(2) is bonded in a 6-coordinate geometry to two equivalent Ba(1), two equivalent Eu(1), and two equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_BaEu2CoO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.866
_cell_length_b   6.866
_cell_length_c   6.866
_cell_angle_alpha   148.109
_cell_angle_beta   128.401
_cell_angle_gamma   61.952
_symmetry_Int_Tables_number   1
_cell_volume   132.726
_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  0.000  0.000  0.000  1.0
  Eu  Eu1  1  0.707  0.207  0.500  1.0
  Eu  Eu2  1  0.293  0.793  0.500  1.0
  Co  Co3  1  0.500  0.500  0.000  1.0
  O  O4  1  0.119  0.359  0.760  1.0
  O  O5  1  0.881  0.641  0.240  1.0
  O  O6  1  0.400  0.641  0.760  1.0
  O  O7  1  0.600  0.359  0.240  1.0
  O  O8  1  0.500  0.000  0.500  1.0
[/CIF]
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