The structure described by Sr3Co2O6 crystallizes in the orthorhombic Immm space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted q6 geometry to two equivalent O(2), two equivalent O(4), two equivalent O(5), and four equivalent O(1) atoms. In the second Sr site, Sr(2) is bonded in a body-centered cubic geometry to four equivalent O(2) and four equivalent O(5) atoms. In the third Sr site, Sr(3) is bonded in a 9-coordinate geometry to one O(4), one O(5), two equivalent O(1), two equivalent O(6), and three equivalent O(3) atoms. In the fourth Sr site, Sr(4) is bonded to one O(6), two equivalent O(5), and four equivalent O(3) atoms to form distorted SrO7 pentagonal bipyramids that share  a cornercorner with one Co(1)O5 square pyramid, edges with two equivalent Sr(4)O7 pentagonal bipyramids, and edges with four equivalent Co(2)O5 square pyramids. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(6), two equivalent O(1), and two equivalent O(4) atoms to form CoO5 square pyramids that share  a cornercorner with one Sr(4)O7 pentagonal bipyramid, corners with two equivalent Co(1)O5 square pyramids, and corners with two equivalent Co(2)O5 square pyramids. In the second Co site, Co(2) is bonded to one O(1), one O(2), one O(3), and two equivalent O(5) atoms to form CoO5 square pyramids that share  a cornercorner with one Co(1)O5 square pyramid, corners with three equivalent Co(2)O5 square pyramids, and edges with two equivalent Sr(4)O7 pentagonal bipyramids. There are six inequivalent O sites. In the first O site, O(3) is bonded to two equivalent Sr(4), three equivalent Sr(3), and one Co(2) atom to form distorted OSr5Co octahedra that share  a cornercorner with one O(2)Sr4Co2 octahedra, corners with two equivalent O(3)Sr5Co octahedra, corners with two equivalent O(6)Sr5Co octahedra, corners with three equivalent O(4)Sr4Co2 octahedra, corners with three equivalent O(5)Sr4Co2 octahedra, corners with four equivalent O(1)Sr4Co2 octahedra, edges with three equivalent O(6)Sr5Co octahedra, edges with five equivalent O(3)Sr5Co octahedra,  a faceface with one O(1)Sr4Co2 octahedra, and faces with two equivalent O(5)Sr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 3-61°. In the second O site, O(4) is bonded to two equivalent Sr(1), two equivalent Sr(3), and two equivalent Co(1) atoms to form distorted OSr4Co2 octahedra that share corners with two equivalent O(4)Sr4Co2 octahedra, corners with two equivalent O(5)Sr4Co2 octahedra, corners with four equivalent O(1)Sr4Co2 octahedra, corners with four equivalent O(2)Sr4Co2 octahedra, corners with six equivalent O(3)Sr5Co octahedra,  an edgeedge with one O(4)Sr4Co2 octahedra, edges with two equivalent O(5)Sr4Co2 octahedra, faces with two equivalent O(6)Sr5Co octahedra, and faces with four equivalent O(1)Sr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 7-71°. In the third O site, O(5) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), and two equivalent Co(2) atoms to form distorted OSr4Co2 octahedra that share  a cornercorner with one O(4)Sr4Co2 octahedra, corners with two equivalent O(1)Sr4Co2 octahedra, corners with two equivalent O(2)Sr4Co2 octahedra, corners with three equivalent O(5)Sr4Co2 octahedra, corners with three equivalent O(3)Sr5Co octahedra, corners with three equivalent O(6)Sr5Co octahedra,  an edgeedge with one O(4)Sr4Co2 octahedra, edges with two equivalent O(5)Sr4Co2 octahedra, faces with two equivalent O(1)Sr4Co2 octahedra, faces with two equivalent O(2)Sr4Co2 octahedra, and faces with two equivalent O(3)Sr5Co octahedra. The corner-sharing octahedral tilt angles range from 0-65°. In the fourth O site, O(6) is bonded to one Sr(4), four equivalent Sr(3), and one Co(1) atom to form distorted OSr5Co octahedra that share corners with four equivalent O(1)Sr4Co2 octahedra, corners with four equivalent O(3)Sr5Co octahedra, corners with six equivalent O(5)Sr4Co2 octahedra, edges with two equivalent O(6)Sr5Co octahedra, edges with six equivalent O(3)Sr5Co octahedra, faces with two equivalent O(1)Sr4Co2 octahedra, and faces with two equivalent O(4)Sr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 11-57°. In the fifth O site, O(1) is bonded to two equivalent Sr(1), two equivalent Sr(3), one Co(1), and one Co(2) atom to form distorted OSr4Co2 octahedra that share corners with two equivalent O(2)Sr4Co2 octahedra, corners with two equivalent O(4)Sr4Co2 octahedra, corners with two equivalent O(5)Sr4Co2 octahedra, corners with two equivalent O(6)Sr5Co octahedra, corners with three equivalent O(1)Sr4Co2 octahedra, corners with four equivalent O(3)Sr5Co octahedra, edges with three equivalent O(1)Sr4Co2 octahedra,  a faceface with one O(2)Sr4Co2 octahedra,  a faceface with one O(3)Sr5Co octahedra,  a faceface with one O(6)Sr5Co octahedra, faces with two equivalent O(4)Sr4Co2 octahedra, and faces with two equivalent O(5)Sr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 14-71°. In the sixth O site, O(2) is bonded to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Co(2) atoms to form distorted OSr4Co2 octahedra that share corners with two equivalent O(2)Sr4Co2 octahedra, corners with two equivalent O(3)Sr5Co octahedra, corners with four equivalent O(1)Sr4Co2 octahedra, corners with four equivalent O(4)Sr4Co2 octahedra, corners with four equivalent O(5)Sr4Co2 octahedra, edges with three equivalent O(2)Sr4Co2 octahedra, faces with two equivalent O(1)Sr4Co2 octahedra, and faces with four equivalent O(5)Sr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-65°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr3(CoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.864
_cell_length_b   11.864
_cell_length_c   11.864
_cell_angle_alpha   161.122
_cell_angle_beta   122.364
_cell_angle_gamma   61.217
_symmetry_Int_Tables_number   1
_cell_volume   454.518
_cell_formula_units_Z   3
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  0.316  0.500  0.816  1.0
  Sr  Sr1  1  0.000  0.500  0.500  1.0
  Sr  Sr2  1  0.684  0.500  0.184  1.0
  Sr  Sr3  1  0.152  0.320  0.832  1.0
  Sr  Sr4  1  0.811  0.311  0.500  1.0
  Sr  Sr5  1  0.488  0.320  0.168  1.0
  Sr  Sr6  1  0.848  0.680  0.168  1.0
  Sr  Sr7  1  0.189  0.689  0.500  1.0
  Sr  Sr8  1  0.512  0.680  0.832  1.0
  Co  Co9  1  0.598  0.098  0.500  1.0
  Co  Co10  1  0.263  0.097  0.167  1.0
  Co  Co11  1  0.930  0.097  0.833  1.0
  Co  Co12  1  0.070  0.903  0.167  1.0
  Co  Co13  1  0.402  0.902  0.500  1.0
  Co  Co14  1  0.737  0.903  0.833  1.0
  O  O15  1  0.743  0.086  0.656  1.0
  O  O16  1  0.854  0.000  0.854  1.0
  O  O17  1  0.146  0.000  0.146  1.0
  O  O18  1  0.032  0.193  0.839  1.0
  O  O19  1  0.417  0.417  0.000  1.0
  O  O20  1  0.754  0.403  0.350  1.0
  O  O21  1  0.354  0.193  0.161  1.0
  O  O22  1  0.430  0.086  0.344  1.0
  O  O23  1  0.694  0.194  0.500  1.0
  O  O24  1  0.053  0.403  0.650  1.0
  O  O25  1  0.646  0.807  0.839  1.0
  O  O26  1  0.570  0.914  0.656  1.0
  O  O27  1  0.306  0.806  0.500  1.0
  O  O28  1  0.246  0.597  0.650  1.0
  O  O29  1  0.583  0.583  0.000  1.0
  O  O30  1  0.947  0.597  0.350  1.0
  O  O31  1  0.257  0.914  0.344  1.0
  O  O32  1  0.968  0.807  0.161  1.0
[/CIF]
.
The structure described by Sr3Co2O6 crystallizes in the orthorhombic Immm space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a distorted q6 geometry to two equivalent O(2), two equivalent O(4), two equivalent O(5), and four equivalent O(1) atoms. In the second Sr site, Sr(2) is bonded in a body-centered cubic geometry to four equivalent O(2) and four equivalent O(5) atoms. In the third Sr site, Sr(3) is bonded in a 9-coordinate geometry to one O(4), one O(5), two equivalent O(1), two equivalent O(6), and three equivalent O(3) atoms. In the fourth Sr site, Sr(4) is bonded to one O(6), two equivalent O(5), and four equivalent O(3) atoms to form distorted SrO7 pentagonal bipyramids that share  a cornercorner with one Co(1)O5 square pyramid, edges with two equivalent Sr(4)O7 pentagonal bipyramids, and edges with four equivalent Co(2)O5 square pyramids. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(6), two equivalent O(1), and two equivalent O(4) atoms to form CoO5 square pyramids that share  a cornercorner with one Sr(4)O7 pentagonal bipyramid, corners with two equivalent Co(1)O5 square pyramids, and corners with two equivalent Co(2)O5 square pyramids. In the second Co site, Co(2) is bonded to one O(1), one O(2), one O(3), and two equivalent O(5) atoms to form CoO5 square pyramids that share  a cornercorner with one Co(1)O5 square pyramid, corners with three equivalent Co(2)O5 square pyramids, and edges with two equivalent Sr(4)O7 pentagonal bipyramids. There are six inequivalent O sites. In the first O site, O(3) is bonded to two equivalent Sr(4), three equivalent Sr(3), and one Co(2) atom to form distorted OSr5Co octahedra that share  a cornercorner with one O(2)Sr4Co2 octahedra, corners with two equivalent O(3)Sr5Co octahedra, corners with two equivalent O(6)Sr5Co octahedra, corners with three equivalent O(4)Sr4Co2 octahedra, corners with three equivalent O(5)Sr4Co2 octahedra, corners with four equivalent O(1)Sr4Co2 octahedra, edges with three equivalent O(6)Sr5Co octahedra, edges with five equivalent O(3)Sr5Co octahedra,  a faceface with one O(1)Sr4Co2 octahedra, and faces with two equivalent O(5)Sr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 3-61°. In the second O site, O(4) is bonded to two equivalent Sr(1), two equivalent Sr(3), and two equivalent Co(1) atoms to form distorted OSr4Co2 octahedra that share corners with two equivalent O(4)Sr4Co2 octahedra, corners with two equivalent O(5)Sr4Co2 octahedra, corners with four equivalent O(1)Sr4Co2 octahedra, corners with four equivalent O(2)Sr4Co2 octahedra, corners with six equivalent O(3)Sr5Co octahedra,  an edgeedge with one O(4)Sr4Co2 octahedra, edges with two equivalent O(5)Sr4Co2 octahedra, faces with two equivalent O(6)Sr5Co octahedra, and faces with four equivalent O(1)Sr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 7-71°. In the third O site, O(5) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), and two equivalent Co(2) atoms to form distorted OSr4Co2 octahedra that share  a cornercorner with one O(4)Sr4Co2 octahedra, corners with two equivalent O(1)Sr4Co2 octahedra, corners with two equivalent O(2)Sr4Co2 octahedra, corners with three equivalent O(5)Sr4Co2 octahedra, corners with three equivalent O(3)Sr5Co octahedra, corners with three equivalent O(6)Sr5Co octahedra,  an edgeedge with one O(4)Sr4Co2 octahedra, edges with two equivalent O(5)Sr4Co2 octahedra, faces with two equivalent O(1)Sr4Co2 octahedra, faces with two equivalent O(2)Sr4Co2 octahedra, and faces with two equivalent O(3)Sr5Co octahedra. The corner-sharing octahedral tilt angles range from 0-65°. In the fourth O site, O(6) is bonded to one Sr(4), four equivalent Sr(3), and one Co(1) atom to form distorted OSr5Co octahedra that share corners with four equivalent O(1)Sr4Co2 octahedra, corners with four equivalent O(3)Sr5Co octahedra, corners with six equivalent O(5)Sr4Co2 octahedra, edges with two equivalent O(6)Sr5Co octahedra, edges with six equivalent O(3)Sr5Co octahedra, faces with two equivalent O(1)Sr4Co2 octahedra, and faces with two equivalent O(4)Sr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 11-57°. In the fifth O site, O(1) is bonded to two equivalent Sr(1), two equivalent Sr(3), one Co(1), and one Co(2) atom to form distorted OSr4Co2 octahedra that share corners with two equivalent O(2)Sr4Co2 octahedra, corners with two equivalent O(4)Sr4Co2 octahedra, corners with two equivalent O(5)Sr4Co2 octahedra, corners with two equivalent O(6)Sr5Co octahedra, corners with three equivalent O(1)Sr4Co2 octahedra, corners with four equivalent O(3)Sr5Co octahedra, edges with three equivalent O(1)Sr4Co2 octahedra,  a faceface with one O(2)Sr4Co2 octahedra,  a faceface with one O(3)Sr5Co octahedra,  a faceface with one O(6)Sr5Co octahedra, faces with two equivalent O(4)Sr4Co2 octahedra, and faces with two equivalent O(5)Sr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 14-71°. In the sixth O site, O(2) is bonded to two equivalent Sr(1), two equivalent Sr(2), and two equivalent Co(2) atoms to form distorted OSr4Co2 octahedra that share corners with two equivalent O(2)Sr4Co2 octahedra, corners with two equivalent O(3)Sr5Co octahedra, corners with four equivalent O(1)Sr4Co2 octahedra, corners with four equivalent O(4)Sr4Co2 octahedra, corners with four equivalent O(5)Sr4Co2 octahedra, edges with three equivalent O(2)Sr4Co2 octahedra, faces with two equivalent O(1)Sr4Co2 octahedra, and faces with four equivalent O(5)Sr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 0-65°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr3(CoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.864
_cell_length_b   11.864
_cell_length_c   11.864
_cell_angle_alpha   161.122
_cell_angle_beta   122.364
_cell_angle_gamma   61.217
_symmetry_Int_Tables_number   1
_cell_volume   454.518
_cell_formula_units_Z   3
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  0.316  0.500  0.816  1.0
  Sr  Sr1  1  0.000  0.500  0.500  1.0
  Sr  Sr2  1  0.684  0.500  0.184  1.0
  Sr  Sr3  1  0.152  0.320  0.832  1.0
  Sr  Sr4  1  0.811  0.311  0.500  1.0
  Sr  Sr5  1  0.488  0.320  0.168  1.0
  Sr  Sr6  1  0.848  0.680  0.168  1.0
  Sr  Sr7  1  0.189  0.689  0.500  1.0
  Sr  Sr8  1  0.512  0.680  0.832  1.0
  Co  Co9  1  0.598  0.098  0.500  1.0
  Co  Co10  1  0.263  0.097  0.167  1.0
  Co  Co11  1  0.930  0.097  0.833  1.0
  Co  Co12  1  0.070  0.903  0.167  1.0
  Co  Co13  1  0.402  0.902  0.500  1.0
  Co  Co14  1  0.737  0.903  0.833  1.0
  O  O15  1  0.743  0.086  0.656  1.0
  O  O16  1  0.854  0.000  0.854  1.0
  O  O17  1  0.146  0.000  0.146  1.0
  O  O18  1  0.032  0.193  0.839  1.0
  O  O19  1  0.417  0.417  0.000  1.0
  O  O20  1  0.754  0.403  0.350  1.0
  O  O21  1  0.354  0.193  0.161  1.0
  O  O22  1  0.430  0.086  0.344  1.0
  O  O23  1  0.694  0.194  0.500  1.0
  O  O24  1  0.053  0.403  0.650  1.0
  O  O25  1  0.646  0.807  0.839  1.0
  O  O26  1  0.570  0.914  0.656  1.0
  O  O27  1  0.306  0.806  0.500  1.0
  O  O28  1  0.246  0.597  0.650  1.0
  O  O29  1  0.583  0.583  0.000  1.0
  O  O30  1  0.947  0.597  0.350  1.0
  O  O31  1  0.257  0.914  0.344  1.0
  O  O32  1  0.968  0.807  0.161  1.0
[/CIF]
.