The material described by SrEuCoO4 is (La,Ba)CuO4-derived structured and crystallizes in the tetragonal I4mm space group. Sr(1) is bonded in a 9-coordinate geometry to one O(1), four equivalent O(2), and four equivalent O(3) atoms. Eu(1) is bonded in a 9-coordinate geometry to one O(2), four equivalent O(1), and four equivalent O(3) atoms. Co(1) is bonded to one O(1), one O(2), and four equivalent O(3) atoms to form corner-sharing CoO6 octahedra. The corner-sharing octahedral tilt angles are 7°. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), four equivalent Eu(1), and one Co(1) atom to form distorted OSrEu4Co octahedra that share  a cornercorner with one O(2)Sr4EuCo octahedra, corners with four equivalent O(1)SrEu4Co octahedra, corners with twelve equivalent O(3)Sr2Eu2Co2 octahedra, edges with four equivalent O(2)Sr4EuCo octahedra, edges with four equivalent O(1)SrEu4Co octahedra, and faces with four equivalent O(3)Sr2Eu2Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-54°. In the second O site, O(2) is bonded to four equivalent Sr(1), one Eu(1), and one Co(1) atom to form distorted OSr4EuCo octahedra that share  a cornercorner with one O(1)SrEu4Co octahedra, corners with four equivalent O(2)Sr4EuCo octahedra, corners with twelve equivalent O(3)Sr2Eu2Co2 octahedra, edges with four equivalent O(2)Sr4EuCo octahedra, edges with four equivalent O(1)SrEu4Co octahedra, and faces with four equivalent O(3)Sr2Eu2Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the third O site, O(3) is bonded to two equivalent Sr(1), two equivalent Eu(1), and two equivalent Co(1) atoms to form distorted OSr2Eu2Co2 octahedra that share corners with two equivalent O(3)Sr2Eu2Co2 octahedra, corners with six equivalent O(2)Sr4EuCo octahedra, corners with six equivalent O(1)SrEu4Co octahedra, edges with two equivalent O(3)Sr2Eu2Co2 octahedra, faces with two equivalent O(2)Sr4EuCo octahedra, faces with two equivalent O(1)SrEu4Co octahedra, and faces with four equivalent O(3)Sr2Eu2Co2 octahedra. The corner-sharing octahedral tilt angles range from 7-55°. is represented by the CIF file [CIF]
data_SrEuCoO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.734
_cell_length_b   6.734
_cell_length_c   6.734
_cell_angle_alpha   147.120
_cell_angle_beta   147.120
_cell_angle_gamma   47.186
_symmetry_Int_Tables_number   1
_cell_volume   89.650
_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
  Sr  Sr0  1  0.644  0.644  0.000  1.0
  Eu  Eu1  1  0.359  0.359  0.000  1.0
  Co  Co2  1  0.003  0.003  0.000  1.0
  O  O3  1  0.841  0.841  0.000  1.0
  O  O4  1  0.167  0.167  0.000  1.0
  O  O5  1  0.493  0.993  0.500  1.0
  O  O6  1  0.993  0.493  0.500  1.0
[/CIF]
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The material described by SrEuCoO4 is (La,Ba)CuO4-derived structured and crystallizes in the tetragonal I4mm space group. Sr(1) is bonded in a 9-coordinate geometry to one O(1), four equivalent O(2), and four equivalent O(3) atoms. Eu(1) is bonded in a 9-coordinate geometry to one O(2), four equivalent O(1), and four equivalent O(3) atoms. Co(1) is bonded to one O(1), one O(2), and four equivalent O(3) atoms to form corner-sharing CoO6 octahedra. The corner-sharing octahedral tilt angles are 7°. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), four equivalent Eu(1), and one Co(1) atom to form distorted OSrEu4Co octahedra that share  a cornercorner with one O(2)Sr4EuCo octahedra, corners with four equivalent O(1)SrEu4Co octahedra, corners with twelve equivalent O(3)Sr2Eu2Co2 octahedra, edges with four equivalent O(2)Sr4EuCo octahedra, edges with four equivalent O(1)SrEu4Co octahedra, and faces with four equivalent O(3)Sr2Eu2Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-54°. In the second O site, O(2) is bonded to four equivalent Sr(1), one Eu(1), and one Co(1) atom to form distorted OSr4EuCo octahedra that share  a cornercorner with one O(1)SrEu4Co octahedra, corners with four equivalent O(2)Sr4EuCo octahedra, corners with twelve equivalent O(3)Sr2Eu2Co2 octahedra, edges with four equivalent O(2)Sr4EuCo octahedra, edges with four equivalent O(1)SrEu4Co octahedra, and faces with four equivalent O(3)Sr2Eu2Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-55°. In the third O site, O(3) is bonded to two equivalent Sr(1), two equivalent Eu(1), and two equivalent Co(1) atoms to form distorted OSr2Eu2Co2 octahedra that share corners with two equivalent O(3)Sr2Eu2Co2 octahedra, corners with six equivalent O(2)Sr4EuCo octahedra, corners with six equivalent O(1)SrEu4Co octahedra, edges with two equivalent O(3)Sr2Eu2Co2 octahedra, faces with two equivalent O(2)Sr4EuCo octahedra, faces with two equivalent O(1)SrEu4Co octahedra, and faces with four equivalent O(3)Sr2Eu2Co2 octahedra. The corner-sharing octahedral tilt angles range from 7-55°. is represented by the CIF file [CIF]
data_SrEuCoO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.734
_cell_length_b   6.734
_cell_length_c   6.734
_cell_angle_alpha   147.120
_cell_angle_beta   147.120
_cell_angle_gamma   47.186
_symmetry_Int_Tables_number   1
_cell_volume   89.650
_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
  Sr  Sr0  1  0.644  0.644  0.000  1.0
  Eu  Eu1  1  0.359  0.359  0.000  1.0
  Co  Co2  1  0.003  0.003  0.000  1.0
  O  O3  1  0.841  0.841  0.000  1.0
  O  O4  1  0.167  0.167  0.000  1.0
  O  O5  1  0.493  0.993  0.500  1.0
  O  O6  1  0.993  0.493  0.500  1.0
[/CIF]
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