The compound described by GdSrCoO4 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. Gd(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 12°. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), four equivalent Gd(1), and one Co(1) atom to form distorted OSrGd4Co octahedra that share  a cornercorner with one O(2)Sr4GdCo octahedra, corners with four equivalent O(1)SrGd4Co octahedra, corners with twelve equivalent O(3)Sr2Gd2Co2 octahedra, edges with four equivalent O(2)Sr4GdCo octahedra, edges with four equivalent O(1)SrGd4Co octahedra, and faces with four equivalent O(3)Sr2Gd2Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-52°. In the second O site, O(2) is bonded to four equivalent Sr(1), one Gd(1), and one Co(1) atom to form distorted OSr4GdCo octahedra that share  a cornercorner with one O(1)SrGd4Co octahedra, corners with four equivalent O(2)Sr4GdCo octahedra, corners with twelve equivalent O(3)Sr2Gd2Co2 octahedra, edges with four equivalent O(2)Sr4GdCo octahedra, edges with four equivalent O(1)SrGd4Co octahedra, and faces with four equivalent O(3)Sr2Gd2Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-54°. In the third O site, O(3) is bonded to two equivalent Sr(1), two equivalent Gd(1), and two equivalent Co(1) atoms to form distorted OSr2Gd2Co2 octahedra that share corners with two equivalent O(3)Sr2Gd2Co2 octahedra, corners with six equivalent O(2)Sr4GdCo octahedra, corners with six equivalent O(1)SrGd4Co octahedra, edges with two equivalent O(3)Sr2Gd2Co2 octahedra, faces with two equivalent O(2)Sr4GdCo octahedra, faces with two equivalent O(1)SrGd4Co octahedra, and faces with four equivalent O(3)Sr2Gd2Co2 octahedra. The corner-sharing octahedral tilt angles range from 12-54°. is represented by the CIF file [CIF]
data_SrGdCoO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.632
_cell_length_b   6.632
_cell_length_c   6.632
_cell_angle_alpha   146.875
_cell_angle_beta   146.875
_cell_angle_gamma   47.549
_symmetry_Int_Tables_number   1
_cell_volume   86.783
_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  0.643  0.643  0.000  1.0
  Gd  Gd1  1  0.363  0.363  0.000  1.0
  Co  Co2  1  0.005  0.005  0.000  1.0
  O  O3  1  0.841  0.841  0.000  1.0
  O  O4  1  0.172  0.172  0.000  1.0
  O  O5  1  0.988  0.488  0.500  1.0
  O  O6  1  0.488  0.988  0.500  1.0
[/CIF]
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The compound described by GdSrCoO4 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. Gd(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 12°. There are three inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), four equivalent Gd(1), and one Co(1) atom to form distorted OSrGd4Co octahedra that share  a cornercorner with one O(2)Sr4GdCo octahedra, corners with four equivalent O(1)SrGd4Co octahedra, corners with twelve equivalent O(3)Sr2Gd2Co2 octahedra, edges with four equivalent O(2)Sr4GdCo octahedra, edges with four equivalent O(1)SrGd4Co octahedra, and faces with four equivalent O(3)Sr2Gd2Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-52°. In the second O site, O(2) is bonded to four equivalent Sr(1), one Gd(1), and one Co(1) atom to form distorted OSr4GdCo octahedra that share  a cornercorner with one O(1)SrGd4Co octahedra, corners with four equivalent O(2)Sr4GdCo octahedra, corners with twelve equivalent O(3)Sr2Gd2Co2 octahedra, edges with four equivalent O(2)Sr4GdCo octahedra, edges with four equivalent O(1)SrGd4Co octahedra, and faces with four equivalent O(3)Sr2Gd2Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-54°. In the third O site, O(3) is bonded to two equivalent Sr(1), two equivalent Gd(1), and two equivalent Co(1) atoms to form distorted OSr2Gd2Co2 octahedra that share corners with two equivalent O(3)Sr2Gd2Co2 octahedra, corners with six equivalent O(2)Sr4GdCo octahedra, corners with six equivalent O(1)SrGd4Co octahedra, edges with two equivalent O(3)Sr2Gd2Co2 octahedra, faces with two equivalent O(2)Sr4GdCo octahedra, faces with two equivalent O(1)SrGd4Co octahedra, and faces with four equivalent O(3)Sr2Gd2Co2 octahedra. The corner-sharing octahedral tilt angles range from 12-54°. is represented by the CIF file [CIF]
data_SrGdCoO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.632
_cell_length_b   6.632
_cell_length_c   6.632
_cell_angle_alpha   146.875
_cell_angle_beta   146.875
_cell_angle_gamma   47.549
_symmetry_Int_Tables_number   1
_cell_volume   86.783
_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  0.643  0.643  0.000  1.0
  Gd  Gd1  1  0.363  0.363  0.000  1.0
  Co  Co2  1  0.005  0.005  0.000  1.0
  O  O3  1  0.841  0.841  0.000  1.0
  O  O4  1  0.172  0.172  0.000  1.0
  O  O5  1  0.988  0.488  0.500  1.0
  O  O6  1  0.488  0.988  0.500  1.0
[/CIF]
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