The material structure described by Sr4Mg(Co2O5)2 is Pb (Zr_0.50 Ti_0.48) O_3-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(3), one O(6), one O(8), and two equivalent O(7) atoms. In the second Sr site, Sr(2) is bonded in a 7-coordinate geometry to one O(10), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom. In the third Sr site, Sr(3) is bonded in a 7-coordinate geometry to one O(10), one O(6), one O(7), one O(8), one O(9), and two equivalent O(1) atoms. In the fourth Sr site, Sr(4) is bonded in a 7-coordinate geometry to one O(10), one O(2), one O(4), one O(5), one O(6), one O(8), and one O(9) atom. Mg(1) is bonded in a 4-coordinate geometry to one O(3), one O(4), one O(5), and one O(9) atom. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(3), one O(4), and one O(9) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(2)O6 octahedra and  a cornercorner with one Co(4)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 35°. In the second Co site, Co(2) is bonded to one O(10), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted CoO6 octahedra that share  a cornercorner with one Co(1)O4 tetrahedra and corners with four equivalent Co(4)O5 trigonal bipyramids. In the third Co site, Co(3) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), one O(7), and one O(9) atom. In the fourth Co site, Co(4) is bonded to one O(1), one O(10), one O(5), one O(6), and one O(8) atom to form distorted CoO5 trigonal bipyramids that share corners with four equivalent Co(2)O6 octahedra and  a cornercorner with one Co(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 3-51°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Sr(3), one Co(1), and one Co(4) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sr(2), one Sr(4), and one Co(3) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), one Co(1), and one Co(3) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(2), one Sr(4), one Mg(1), one Co(1), and one Co(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Sr(2), one Sr(4), one Mg(1), one Co(2), and one Co(4) atom. In the sixth O site, O(6) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Co(2), and one Co(4) atom to form a mixture of distorted edge, corner, and face-sharing OSr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 7-8°. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Sr(3), two equivalent Sr(1), one Co(2), and one Co(3) atom. In the eighth O site, O(8) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Co(2), and one Co(4) atom to form a mixture of edge, corner, and face-sharing OSr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 7-8°. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Sr(3), one Sr(4), one Mg(1), one Co(1), and one Co(3) atom. In the tenth O site, O(10) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Co(2), and one Co(4) atom to form distorted face-sharing OSr4Co2 octahedra. is represented by the CIF file [CIF]
data_Sr4Mg(Co2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.682
_cell_length_b   5.881
_cell_length_c   9.358
_cell_angle_alpha   112.044
_cell_angle_beta   112.450
_cell_angle_gamma   83.985
_symmetry_Int_Tables_number   1
_cell_volume   267.607
_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  0.602  0.133  0.237  1.0
  Sr  Sr1  1  0.904  0.452  0.794  1.0
  Sr  Sr2  1  0.123  0.615  0.224  1.0
  Sr  Sr3  1  0.317  0.859  0.822  1.0
  Mg  Mg4  1  0.568  0.019  0.673  1.0
  Co  Co5  1  0.846  0.815  0.487  1.0
  Co  Co6  1  0.969  0.024  0.019  1.0
  Co  Co7  1  0.251  0.216  0.486  1.0
  Co  Co8  1  0.516  0.507  0.031  1.0
  O  O9  1  0.671  0.577  0.269  1.0
  O  O10  1  0.289  0.412  0.689  1.0
  O  O11  1  0.627  0.132  0.513  1.0
  O  O12  1  0.843  0.795  0.695  1.0
  O  O13  1  0.661  0.216  0.919  1.0
  O  O14  1  0.227  0.249  0.015  1.0
  O  O15  1  0.087  0.196  0.277  1.0
  O  O16  1  0.745  0.757  0.022  1.0
  O  O17  1  0.206  0.898  0.525  1.0
  O  O18  1  0.259  0.747  0.033  1.0
[/CIF]
.
The material structure described by Sr4Mg(Co2O5)2 is Pb (Zr_0.50 Ti_0.48) O_3-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(3), one O(6), one O(8), and two equivalent O(7) atoms. In the second Sr site, Sr(2) is bonded in a 7-coordinate geometry to one O(10), one O(2), one O(3), one O(4), one O(5), one O(6), and one O(8) atom. In the third Sr site, Sr(3) is bonded in a 7-coordinate geometry to one O(10), one O(6), one O(7), one O(8), one O(9), and two equivalent O(1) atoms. In the fourth Sr site, Sr(4) is bonded in a 7-coordinate geometry to one O(10), one O(2), one O(4), one O(5), one O(6), one O(8), and one O(9) atom. Mg(1) is bonded in a 4-coordinate geometry to one O(3), one O(4), one O(5), and one O(9) atom. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(1), one O(3), one O(4), and one O(9) atom to form CoO4 tetrahedra that share  a cornercorner with one Co(2)O6 octahedra and  a cornercorner with one Co(4)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles are 35°. In the second Co site, Co(2) is bonded to one O(10), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form distorted CoO6 octahedra that share  a cornercorner with one Co(1)O4 tetrahedra and corners with four equivalent Co(4)O5 trigonal bipyramids. In the third Co site, Co(3) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(3), one O(7), and one O(9) atom. In the fourth Co site, Co(4) is bonded to one O(1), one O(10), one O(5), one O(6), and one O(8) atom to form distorted CoO5 trigonal bipyramids that share corners with four equivalent Co(2)O6 octahedra and  a cornercorner with one Co(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 3-51°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Sr(3), one Co(1), and one Co(4) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Sr(2), one Sr(4), and one Co(3) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), one Co(1), and one Co(3) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(2), one Sr(4), one Mg(1), one Co(1), and one Co(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Sr(2), one Sr(4), one Mg(1), one Co(2), and one Co(4) atom. In the sixth O site, O(6) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Co(2), and one Co(4) atom to form a mixture of distorted edge, corner, and face-sharing OSr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 7-8°. In the seventh O site, O(7) is bonded in a 2-coordinate geometry to one Sr(3), two equivalent Sr(1), one Co(2), and one Co(3) atom. In the eighth O site, O(8) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Co(2), and one Co(4) atom to form a mixture of edge, corner, and face-sharing OSr4Co2 octahedra. The corner-sharing octahedral tilt angles range from 7-8°. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Sr(3), one Sr(4), one Mg(1), one Co(1), and one Co(3) atom. In the tenth O site, O(10) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Co(2), and one Co(4) atom to form distorted face-sharing OSr4Co2 octahedra. is represented by the CIF file [CIF]
data_Sr4Mg(Co2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.682
_cell_length_b   5.881
_cell_length_c   9.358
_cell_angle_alpha   112.044
_cell_angle_beta   112.450
_cell_angle_gamma   83.985
_symmetry_Int_Tables_number   1
_cell_volume   267.607
_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  0.602  0.133  0.237  1.0
  Sr  Sr1  1  0.904  0.452  0.794  1.0
  Sr  Sr2  1  0.123  0.615  0.224  1.0
  Sr  Sr3  1  0.317  0.859  0.822  1.0
  Mg  Mg4  1  0.568  0.019  0.673  1.0
  Co  Co5  1  0.846  0.815  0.487  1.0
  Co  Co6  1  0.969  0.024  0.019  1.0
  Co  Co7  1  0.251  0.216  0.486  1.0
  Co  Co8  1  0.516  0.507  0.031  1.0
  O  O9  1  0.671  0.577  0.269  1.0
  O  O10  1  0.289  0.412  0.689  1.0
  O  O11  1  0.627  0.132  0.513  1.0
  O  O12  1  0.843  0.795  0.695  1.0
  O  O13  1  0.661  0.216  0.919  1.0
  O  O14  1  0.227  0.249  0.015  1.0
  O  O15  1  0.087  0.196  0.277  1.0
  O  O16  1  0.745  0.757  0.022  1.0
  O  O17  1  0.206  0.898  0.525  1.0
  O  O18  1  0.259  0.747  0.033  1.0
[/CIF]
.