The material structure described by Na6Mg(CoO3)2 crystallizes in the triclinic P1 space group. There are six inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(4), and one O(6) atom. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(4), and one O(5) atom. In the third Na site, Na(3) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(5) atom. In the fourth Na site, Na(4) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(4), and one O(6) atom. In the fifth Na site, Na(5) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(4), and one O(6) atom. In the sixth Na site, Na(6) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(4), and one O(5) atom. Mg(1) is bonded in an octahedral geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted trigonal planar geometry to one O(1), one O(3), and one O(6) atom. In the second Co site, Co(2) is bonded in a distorted trigonal planar geometry to one O(2), one O(4), and one O(5) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Na(2), one Na(3), one Na(4), one Na(6), one Mg(1), and one Co(1) atom to form distorted ONa4MgCo pentagonal pyramids that share  a cornercorner with one O(2)Na4MgCo pentagonal pyramid,  a cornercorner with one O(6)Na3MgCo trigonal bipyramid, corners with two equivalent O(5)Na3MgCo trigonal bipyramids,  an edgeedge with one O(2)Na4MgCo pentagonal pyramid,  an edgeedge with one O(5)Na3MgCo trigonal bipyramid, and  an edgeedge with one O(6)Na3MgCo trigonal bipyramid. In the second O site, O(2) is bonded to one Na(1), one Na(3), one Na(4), one Na(5), one Mg(1), and one Co(2) atom to form distorted ONa4MgCo pentagonal pyramids that share  a cornercorner with one O(1)Na4MgCo pentagonal pyramid,  a cornercorner with one O(5)Na3MgCo trigonal bipyramid, corners with two equivalent O(6)Na3MgCo trigonal bipyramids,  an edgeedge with one O(1)Na4MgCo pentagonal pyramid,  an edgeedge with one O(5)Na3MgCo trigonal bipyramid, and  an edgeedge with one O(6)Na3MgCo trigonal bipyramid. In the third O site, O(3) is bonded in a 7-coordinate geometry to one Na(1), one Na(2), one Na(3), one Na(5), one Na(6), one Mg(1), and one Co(1) atom. In the fourth O site, O(4) is bonded in a 7-coordinate geometry to one Na(1), one Na(2), one Na(4), one Na(5), one Na(6), one Mg(1), and one Co(2) atom. In the fifth O site, O(5) is bonded to one Na(2), one Na(3), one Na(6), one Mg(1), and one Co(2) atom to form distorted ONa3MgCo trigonal bipyramids that share  a cornercorner with one O(2)Na4MgCo pentagonal pyramid, corners with two equivalent O(1)Na4MgCo pentagonal pyramids,  a cornercorner with one O(6)Na3MgCo trigonal bipyramid,  an edgeedge with one O(1)Na4MgCo pentagonal pyramid, and  an edgeedge with one O(2)Na4MgCo pentagonal pyramid. In the sixth O site, O(6) is bonded to one Na(1), one Na(4), one Na(5), one Mg(1), and one Co(1) atom to form distorted ONa3MgCo trigonal bipyramids that share  a cornercorner with one O(1)Na4MgCo pentagonal pyramid, corners with two equivalent O(2)Na4MgCo pentagonal pyramids,  a cornercorner with one O(5)Na3MgCo trigonal bipyramid,  an edgeedge with one O(1)Na4MgCo pentagonal pyramid, and  an edgeedge with one O(2)Na4MgCo pentagonal pyramid. is represented by the CIF file [CIF]
data_Na6Mg(CoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.769
_cell_length_b   6.431
_cell_length_c   6.372
_cell_angle_alpha   63.193
_cell_angle_beta   91.495
_cell_angle_gamma   88.364
_symmetry_Int_Tables_number   1
_cell_volume   210.707
_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
  Na  Na0  1  0.340  0.117  0.803  1.0
  Na  Na1  1  0.658  0.882  0.198  1.0
  Na  Na2  1  0.779  0.372  0.496  1.0
  Na  Na3  1  0.223  0.627  0.505  1.0
  Na  Na4  1  0.083  0.705  0.052  1.0
  Na  Na5  1  0.916  0.295  0.947  1.0
  Mg  Mg6  1  0.001  1.000  0.498  1.0
  Co  Co7  1  0.604  0.790  0.726  1.0
  Co  Co8  1  0.397  0.211  0.274  1.0
  O  O9  1  0.827  0.674  0.581  1.0
  O  O10  1  0.173  0.326  0.419  1.0
  O  O11  1  0.785  0.993  0.811  1.0
  O  O12  1  0.213  0.007  0.191  1.0
  O  O13  1  0.713  0.202  0.263  1.0
  O  O14  1  0.288  0.798  0.737  1.0
[/CIF]
.
The material structure described by Na6Mg(CoO3)2 crystallizes in the triclinic P1 space group. There are six inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(4), and one O(6) atom. In the second Na site, Na(2) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(4), and one O(5) atom. In the third Na site, Na(3) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(3), and one O(5) atom. In the fourth Na site, Na(4) is bonded in a rectangular see-saw-like geometry to one O(1), one O(2), one O(4), and one O(6) atom. In the fifth Na site, Na(5) is bonded in a 4-coordinate geometry to one O(2), one O(3), one O(4), and one O(6) atom. In the sixth Na site, Na(6) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(4), and one O(5) atom. Mg(1) is bonded in an octahedral geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a distorted trigonal planar geometry to one O(1), one O(3), and one O(6) atom. In the second Co site, Co(2) is bonded in a distorted trigonal planar geometry to one O(2), one O(4), and one O(5) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Na(2), one Na(3), one Na(4), one Na(6), one Mg(1), and one Co(1) atom to form distorted ONa4MgCo pentagonal pyramids that share  a cornercorner with one O(2)Na4MgCo pentagonal pyramid,  a cornercorner with one O(6)Na3MgCo trigonal bipyramid, corners with two equivalent O(5)Na3MgCo trigonal bipyramids,  an edgeedge with one O(2)Na4MgCo pentagonal pyramid,  an edgeedge with one O(5)Na3MgCo trigonal bipyramid, and  an edgeedge with one O(6)Na3MgCo trigonal bipyramid. In the second O site, O(2) is bonded to one Na(1), one Na(3), one Na(4), one Na(5), one Mg(1), and one Co(2) atom to form distorted ONa4MgCo pentagonal pyramids that share  a cornercorner with one O(1)Na4MgCo pentagonal pyramid,  a cornercorner with one O(5)Na3MgCo trigonal bipyramid, corners with two equivalent O(6)Na3MgCo trigonal bipyramids,  an edgeedge with one O(1)Na4MgCo pentagonal pyramid,  an edgeedge with one O(5)Na3MgCo trigonal bipyramid, and  an edgeedge with one O(6)Na3MgCo trigonal bipyramid. In the third O site, O(3) is bonded in a 7-coordinate geometry to one Na(1), one Na(2), one Na(3), one Na(5), one Na(6), one Mg(1), and one Co(1) atom. In the fourth O site, O(4) is bonded in a 7-coordinate geometry to one Na(1), one Na(2), one Na(4), one Na(5), one Na(6), one Mg(1), and one Co(2) atom. In the fifth O site, O(5) is bonded to one Na(2), one Na(3), one Na(6), one Mg(1), and one Co(2) atom to form distorted ONa3MgCo trigonal bipyramids that share  a cornercorner with one O(2)Na4MgCo pentagonal pyramid, corners with two equivalent O(1)Na4MgCo pentagonal pyramids,  a cornercorner with one O(6)Na3MgCo trigonal bipyramid,  an edgeedge with one O(1)Na4MgCo pentagonal pyramid, and  an edgeedge with one O(2)Na4MgCo pentagonal pyramid. In the sixth O site, O(6) is bonded to one Na(1), one Na(4), one Na(5), one Mg(1), and one Co(1) atom to form distorted ONa3MgCo trigonal bipyramids that share  a cornercorner with one O(1)Na4MgCo pentagonal pyramid, corners with two equivalent O(2)Na4MgCo pentagonal pyramids,  a cornercorner with one O(5)Na3MgCo trigonal bipyramid,  an edgeedge with one O(1)Na4MgCo pentagonal pyramid, and  an edgeedge with one O(2)Na4MgCo pentagonal pyramid. is represented by the CIF file [CIF]
data_Na6Mg(CoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.769
_cell_length_b   6.431
_cell_length_c   6.372
_cell_angle_alpha   63.193
_cell_angle_beta   91.495
_cell_angle_gamma   88.364
_symmetry_Int_Tables_number   1
_cell_volume   210.707
_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
  Na  Na0  1  0.340  0.117  0.803  1.0
  Na  Na1  1  0.658  0.882  0.198  1.0
  Na  Na2  1  0.779  0.372  0.496  1.0
  Na  Na3  1  0.223  0.627  0.505  1.0
  Na  Na4  1  0.083  0.705  0.052  1.0
  Na  Na5  1  0.916  0.295  0.947  1.0
  Mg  Mg6  1  0.001  1.000  0.498  1.0
  Co  Co7  1  0.604  0.790  0.726  1.0
  Co  Co8  1  0.397  0.211  0.274  1.0
  O  O9  1  0.827  0.674  0.581  1.0
  O  O10  1  0.173  0.326  0.419  1.0
  O  O11  1  0.785  0.993  0.811  1.0
  O  O12  1  0.213  0.007  0.191  1.0
  O  O13  1  0.713  0.202  0.263  1.0
  O  O14  1  0.288  0.798  0.737  1.0
[/CIF]
.