The structure described by Sr2CoO3 crystallizes in the orthorhombic Fmmm space group. Sr(1) is bonded to one O(1) and five equivalent O(2) atoms to form SrO6 octahedra that share  a cornercorner with one Co(1)O6 octahedra, corners with five equivalent Sr(1)O6 octahedra, edges with four equivalent Co(1)O6 octahedra, and edges with eight equivalent Sr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. Co(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form CoO6 octahedra that share corners with two equivalent Sr(1)O6 octahedra, corners with four equivalent Co(1)O6 octahedra, edges with four equivalent Co(1)O6 octahedra, and edges with eight equivalent Sr(1)O6 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 Sr(1) and four equivalent Co(1) atoms to form OSr2Co4 octahedra that share corners with two equivalent O(2)Sr5Co octahedra, corners with four equivalent O(1)Sr2Co4 octahedra, edges with four equivalent O(1)Sr2Co4 octahedra, and edges with eight equivalent O(2)Sr5Co octahedra. The corner-sharing octahedra are not tilted. In the second O site, O(2) is bonded to five equivalent Sr(1) and one Co(1) atom to form OSr5Co octahedra that share  a cornercorner with one O(1)Sr2Co4 octahedra, corners with five equivalent O(2)Sr5Co octahedra, edges with four equivalent O(1)Sr2Co4 octahedra, and edges with eight equivalent O(2)Sr5Co octahedra. The corner-sharing octahedral tilt angles range from 0-7°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2CoO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.578
_cell_length_b   3.578
_cell_length_c   7.649
_cell_angle_alpha   76.684
_cell_angle_beta   76.684
_cell_angle_gamma   90.867
_symmetry_Int_Tables_number   1
_cell_volume   92.507
_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  0.343  0.343  0.814  1.0
  Sr  Sr1  1  0.657  0.657  0.186  1.0
  Co  Co2  1  0.000  0.000  0.500  1.0
  O  O3  1  0.500  0.500  0.500  1.0
  O  O4  1  0.855  0.855  0.791  1.0
  O  O5  1  0.145  0.145  0.209  1.0
[/CIF]
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The structure described by Sr2CoO3 crystallizes in the orthorhombic Fmmm space group. Sr(1) is bonded to one O(1) and five equivalent O(2) atoms to form SrO6 octahedra that share  a cornercorner with one Co(1)O6 octahedra, corners with five equivalent Sr(1)O6 octahedra, edges with four equivalent Co(1)O6 octahedra, and edges with eight equivalent Sr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-7°. Co(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form CoO6 octahedra that share corners with two equivalent Sr(1)O6 octahedra, corners with four equivalent Co(1)O6 octahedra, edges with four equivalent Co(1)O6 octahedra, and edges with eight equivalent Sr(1)O6 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 Sr(1) and four equivalent Co(1) atoms to form OSr2Co4 octahedra that share corners with two equivalent O(2)Sr5Co octahedra, corners with four equivalent O(1)Sr2Co4 octahedra, edges with four equivalent O(1)Sr2Co4 octahedra, and edges with eight equivalent O(2)Sr5Co octahedra. The corner-sharing octahedra are not tilted. In the second O site, O(2) is bonded to five equivalent Sr(1) and one Co(1) atom to form OSr5Co octahedra that share  a cornercorner with one O(1)Sr2Co4 octahedra, corners with five equivalent O(2)Sr5Co octahedra, edges with four equivalent O(1)Sr2Co4 octahedra, and edges with eight equivalent O(2)Sr5Co octahedra. The corner-sharing octahedral tilt angles range from 0-7°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2CoO3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.578
_cell_length_b   3.578
_cell_length_c   7.649
_cell_angle_alpha   76.684
_cell_angle_beta   76.684
_cell_angle_gamma   90.867
_symmetry_Int_Tables_number   1
_cell_volume   92.507
_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  0.343  0.343  0.814  1.0
  Sr  Sr1  1  0.657  0.657  0.186  1.0
  Co  Co2  1  0.000  0.000  0.500  1.0
  O  O3  1  0.500  0.500  0.500  1.0
  O  O4  1  0.855  0.855  0.791  1.0
  O  O5  1  0.145  0.145  0.209  1.0
[/CIF]
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