The structure described by GdSrCoO4 is (La,Ba)CuO4-derived structured and crystallizes in the orthorhombic Cmcm space group. Sr(1) is bonded in a 9-coordinate geometry to two equivalent O(1), three equivalent O(2), and four equivalent O(3) atoms. Gd(1) is bonded in a 9-coordinate geometry to two equivalent O(2), three 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 octahedra are not tilted. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(1), three equivalent Gd(1), and one Co(1) atom to form distorted OSr2Gd3Co octahedra that share  a cornercorner with one O(2)Sr3Gd2Co octahedra, corners with four equivalent O(1)Sr2Gd3Co octahedra, corners with twelve equivalent O(3)Sr2Gd2Co2 octahedra, edges with two equivalent O(1)Sr2Gd3Co octahedra, edges with six equivalent O(2)Sr3Gd2Co octahedra, and faces with four equivalent O(3)Sr2Gd2Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-53°. In the second O site, O(2) is bonded to three equivalent Sr(1), two equivalent Gd(1), and one Co(1) atom to form distorted OSr3Gd2Co octahedra that share  a cornercorner with one O(1)Sr2Gd3Co octahedra, corners with four equivalent O(2)Sr3Gd2Co octahedra, corners with twelve equivalent O(3)Sr2Gd2Co2 octahedra, edges with two equivalent O(2)Sr3Gd2Co octahedra, edges with six equivalent O(1)Sr2Gd3Co octahedra, and faces with four equivalent O(3)Sr2Gd2Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-56°. 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(1)Sr2Gd3Co octahedra, corners with six equivalent O(2)Sr3Gd2Co octahedra, edges with two equivalent O(3)Sr2Gd2Co2 octahedra, faces with two equivalent O(1)Sr2Gd3Co octahedra, faces with two equivalent O(2)Sr3Gd2Co octahedra, and faces with four equivalent O(3)Sr2Gd2Co2 octahedra. The corner-sharing octahedral tilt angles range from 1-56°. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrGdCoO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.621
_cell_length_b   6.621
_cell_length_c   5.375
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   132.372
_symmetry_Int_Tables_number   1
_cell_volume   174.095
_cell_formula_units_Z   2
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  0.604  0.396  0.250  1.0
  Sr  Sr1  1  0.396  0.604  0.750  1.0
  Gd  Gd2  1  0.116  0.884  0.750  1.0
  Gd  Gd3  1  0.884  0.116  0.250  1.0
  Co  Co4  1  0.249  0.751  0.250  1.0
  Co  Co5  1  0.751  0.249  0.750  1.0
  O  O6  1  0.927  0.073  0.750  1.0
  O  O7  1  0.407  0.593  0.250  1.0
  O  O8  1  0.073  0.927  0.250  1.0
  O  O9  1  0.593  0.407  0.750  1.0
  O  O10  1  0.000  0.500  0.500  1.0
  O  O11  1  0.500  0.000  0.000  1.0
  O  O12  1  0.500  0.000  0.500  1.0
  O  O13  1  0.000  0.500  0.000  1.0
[/CIF]
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The structure described by GdSrCoO4 is (La,Ba)CuO4-derived structured and crystallizes in the orthorhombic Cmcm space group. Sr(1) is bonded in a 9-coordinate geometry to two equivalent O(1), three equivalent O(2), and four equivalent O(3) atoms. Gd(1) is bonded in a 9-coordinate geometry to two equivalent O(2), three 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 octahedra are not tilted. There are three inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(1), three equivalent Gd(1), and one Co(1) atom to form distorted OSr2Gd3Co octahedra that share  a cornercorner with one O(2)Sr3Gd2Co octahedra, corners with four equivalent O(1)Sr2Gd3Co octahedra, corners with twelve equivalent O(3)Sr2Gd2Co2 octahedra, edges with two equivalent O(1)Sr2Gd3Co octahedra, edges with six equivalent O(2)Sr3Gd2Co octahedra, and faces with four equivalent O(3)Sr2Gd2Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-53°. In the second O site, O(2) is bonded to three equivalent Sr(1), two equivalent Gd(1), and one Co(1) atom to form distorted OSr3Gd2Co octahedra that share  a cornercorner with one O(1)Sr2Gd3Co octahedra, corners with four equivalent O(2)Sr3Gd2Co octahedra, corners with twelve equivalent O(3)Sr2Gd2Co2 octahedra, edges with two equivalent O(2)Sr3Gd2Co octahedra, edges with six equivalent O(1)Sr2Gd3Co octahedra, and faces with four equivalent O(3)Sr2Gd2Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-56°. 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(1)Sr2Gd3Co octahedra, corners with six equivalent O(2)Sr3Gd2Co octahedra, edges with two equivalent O(3)Sr2Gd2Co2 octahedra, faces with two equivalent O(1)Sr2Gd3Co octahedra, faces with two equivalent O(2)Sr3Gd2Co octahedra, and faces with four equivalent O(3)Sr2Gd2Co2 octahedra. The corner-sharing octahedral tilt angles range from 1-56°. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrGdCoO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.621
_cell_length_b   6.621
_cell_length_c   5.375
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   132.372
_symmetry_Int_Tables_number   1
_cell_volume   174.095
_cell_formula_units_Z   2
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  0.604  0.396  0.250  1.0
  Sr  Sr1  1  0.396  0.604  0.750  1.0
  Gd  Gd2  1  0.116  0.884  0.750  1.0
  Gd  Gd3  1  0.884  0.116  0.250  1.0
  Co  Co4  1  0.249  0.751  0.250  1.0
  Co  Co5  1  0.751  0.249  0.750  1.0
  O  O6  1  0.927  0.073  0.750  1.0
  O  O7  1  0.407  0.593  0.250  1.0
  O  O8  1  0.073  0.927  0.250  1.0
  O  O9  1  0.593  0.407  0.750  1.0
  O  O10  1  0.000  0.500  0.500  1.0
  O  O11  1  0.500  0.000  0.000  1.0
  O  O12  1  0.500  0.000  0.500  1.0
  O  O13  1  0.000  0.500  0.000  1.0
[/CIF]
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