The structure described by Rb4Mg(CoO3)2 crystallizes in the triclinic P1 space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(4), and one O(6) atom. In the second Rb site, Rb(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the third Rb site, Rb(3) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the fourth Rb site, Rb(4) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. Mg(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form distorted MgO4 tetrahedra that share  a cornercorner with one Co(2)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, and  an edgeedge with one Co(2)O4 tetrahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form CoO4 tetrahedra that share corners with two equivalent Mg(1)O4 tetrahedra and corners with two equivalent Co(2)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form distorted CoO4 tetrahedra that share  a cornercorner with one Mg(1)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(2), one Rb(4), one Mg(1), and one Co(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Rb(2), one Rb(3), one Rb(4), one Mg(1), and one Co(1) atom. In the third O site, O(3) is bonded in a 1-coordinate geometry to one Rb(1), one Rb(2), one Rb(3), one Rb(4), and one Co(1) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to one Rb(1), one Rb(2), one Rb(3), one Rb(4), one Mg(1), and one Co(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Rb(2), one Rb(3), one Mg(1), one Co(1), and one Co(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal bipyramidal geometry to one Rb(1), one Rb(2), one Rb(3), one Co(1), and one Co(2) atom. is represented by the CIF card [CIF]
data_Rb4Mg(CoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.193
_cell_length_b   7.228
_cell_length_c   6.299
_cell_angle_alpha   83.608
_cell_angle_beta   113.281
_cell_angle_gamma   105.039
_symmetry_Int_Tables_number   1
_cell_volume   250.116
_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
  Rb  Rb0  1  0.235  0.374  0.855  1.0
  Rb  Rb1  1  0.501  0.791  0.289  1.0
  Rb  Rb2  1  0.619  0.317  0.595  1.0
  Rb  Rb3  1  0.926  0.615  0.211  1.0
  Mg  Mg4  1  0.415  0.868  0.765  1.0
  Co  Co5  1  0.032  0.107  0.303  1.0
  Co  Co6  1  0.885  0.895  0.785  1.0
  O  O7  1  0.139  0.782  0.870  1.0
  O  O8  1  0.255  0.964  0.449  1.0
  O  O9  1  0.171  0.350  0.262  1.0
  O  O10  1  0.598  0.683  0.752  1.0
  O  O11  1  0.766  0.012  0.992  1.0
  O  O12  1  0.886  0.075  0.551  1.0
[/CIF]
.
The structure described by Rb4Mg(CoO3)2 crystallizes in the triclinic P1 space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(4), and one O(6) atom. In the second Rb site, Rb(2) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the third Rb site, Rb(3) is bonded in a 5-coordinate geometry to one O(2), one O(3), one O(4), one O(5), and one O(6) atom. In the fourth Rb site, Rb(4) is bonded in a 4-coordinate geometry to one O(1), one O(2), one O(3), and one O(4) atom. Mg(1) is bonded to one O(1), one O(2), one O(4), and one O(5) atom to form distorted MgO4 tetrahedra that share  a cornercorner with one Co(2)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, and  an edgeedge with one Co(2)O4 tetrahedra. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one O(2), one O(3), one O(5), and one O(6) atom to form CoO4 tetrahedra that share corners with two equivalent Mg(1)O4 tetrahedra and corners with two equivalent Co(2)O4 tetrahedra. In the second Co site, Co(2) is bonded to one O(1), one O(4), one O(5), and one O(6) atom to form distorted CoO4 tetrahedra that share  a cornercorner with one Mg(1)O4 tetrahedra, corners with two equivalent Co(1)O4 tetrahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Rb(1), one Rb(2), one Rb(4), one Mg(1), and one Co(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Rb(2), one Rb(3), one Rb(4), one Mg(1), and one Co(1) atom. In the third O site, O(3) is bonded in a 1-coordinate geometry to one Rb(1), one Rb(2), one Rb(3), one Rb(4), and one Co(1) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to one Rb(1), one Rb(2), one Rb(3), one Rb(4), one Mg(1), and one Co(2) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Rb(2), one Rb(3), one Mg(1), one Co(1), and one Co(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal bipyramidal geometry to one Rb(1), one Rb(2), one Rb(3), one Co(1), and one Co(2) atom. is represented by the CIF card [CIF]
data_Rb4Mg(CoO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.193
_cell_length_b   7.228
_cell_length_c   6.299
_cell_angle_alpha   83.608
_cell_angle_beta   113.281
_cell_angle_gamma   105.039
_symmetry_Int_Tables_number   1
_cell_volume   250.116
_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
  Rb  Rb0  1  0.235  0.374  0.855  1.0
  Rb  Rb1  1  0.501  0.791  0.289  1.0
  Rb  Rb2  1  0.619  0.317  0.595  1.0
  Rb  Rb3  1  0.926  0.615  0.211  1.0
  Mg  Mg4  1  0.415  0.868  0.765  1.0
  Co  Co5  1  0.032  0.107  0.303  1.0
  Co  Co6  1  0.885  0.895  0.785  1.0
  O  O7  1  0.139  0.782  0.870  1.0
  O  O8  1  0.255  0.964  0.449  1.0
  O  O9  1  0.171  0.350  0.262  1.0
  O  O10  1  0.598  0.683  0.752  1.0
  O  O11  1  0.766  0.012  0.992  1.0
  O  O12  1  0.886  0.075  0.551  1.0
[/CIF]
.