The crystal structure described by Sr2Co2O5 crystallizes in the triclinic P1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(3), two equivalent O(2), two equivalent O(4), and two equivalent O(5) atoms. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), and two equivalent O(2) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted trigonal pyramidal geometry to one O(1), one O(2), one O(4), and one O(5) atom. In the second Co site, Co(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(5) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Co(1), and one Co(2) atom. In the second O site, O(2) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), one Co(1), and one Co(2) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1), one Sr(2), and one Co(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Sr(2), two equivalent Sr(1), one Co(1), and one Co(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Sr(2), two equivalent Sr(1), one Co(1), and one Co(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2Co2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.616
_cell_length_b   5.645
_cell_length_c   5.665
_cell_angle_alpha   117.732
_cell_angle_beta   119.262
_cell_angle_gamma   91.571
_symmetry_Int_Tables_number   1
_cell_volume   130.907
_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  0.347  0.891  0.610  1.0
  Sr  Sr1  1  0.839  0.391  0.609  1.0
  Co  Co2  1  0.098  0.089  0.071  1.0
  Co  Co3  1  0.629  0.689  0.162  1.0
  O  O4  1  0.348  0.417  0.247  1.0
  O  O5  1  0.834  0.892  0.616  1.0
  O  O6  1  0.691  0.379  0.953  1.0
  O  O7  1  0.310  0.810  0.008  1.0
  O  O8  1  0.922  0.994  0.232  1.0
[/CIF]
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The crystal structure described by Sr2Co2O5 crystallizes in the triclinic P1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(3), two equivalent O(2), two equivalent O(4), and two equivalent O(5) atoms. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), and two equivalent O(2) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted trigonal pyramidal geometry to one O(1), one O(2), one O(4), and one O(5) atom. In the second Co site, Co(2) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(5) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Co(1), and one Co(2) atom. In the second O site, O(2) is bonded in a distorted linear geometry to two equivalent Sr(1), two equivalent Sr(2), one Co(1), and one Co(2) atom. In the third O site, O(3) is bonded in a distorted trigonal non-coplanar geometry to one Sr(1), one Sr(2), and one Co(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Sr(2), two equivalent Sr(1), one Co(1), and one Co(2) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Sr(2), two equivalent Sr(1), one Co(1), and one Co(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2Co2O5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.616
_cell_length_b   5.645
_cell_length_c   5.665
_cell_angle_alpha   117.732
_cell_angle_beta   119.262
_cell_angle_gamma   91.571
_symmetry_Int_Tables_number   1
_cell_volume   130.907
_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  0.347  0.891  0.610  1.0
  Sr  Sr1  1  0.839  0.391  0.609  1.0
  Co  Co2  1  0.098  0.089  0.071  1.0
  Co  Co3  1  0.629  0.689  0.162  1.0
  O  O4  1  0.348  0.417  0.247  1.0
  O  O5  1  0.834  0.892  0.616  1.0
  O  O6  1  0.691  0.379  0.953  1.0
  O  O7  1  0.310  0.810  0.008  1.0
  O  O8  1  0.922  0.994  0.232  1.0
[/CIF]
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