The structure described by MgMn(CoO2)4 crystallizes in the triclinic P-1 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, edges with two equivalent Co(2)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-15°. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MnO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, edges with two equivalent Co(2)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-15°. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form CoO6 octahedra that share corners with six equivalent Co(2)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-18°. In the second Co site, Co(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form CoO6 octahedra that share corners with six equivalent Co(1)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-18°. In the third Co site, Co(3) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form CoO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, edges with two equivalent Co(2)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. In the fourth Co site, Co(4) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form CoO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, edges with two equivalent Co(2)O6 octahedra, and edges with two equivalent Co(3)O6 octahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(1), one Co(3), and one Co(4) atom. In the second O site, O(2) is bonded to one Mg(1), one Mn(1), one Co(1), one Co(2), and one Co(4) atom to form a mixture of edge and corner-sharing OMgMnCo3 square pyramids. In the third O site, O(3) is bonded to one Mg(1), one Mn(1), one Co(1), one Co(2), and one Co(3) atom to form a mixture of edge and corner-sharing OMgMnCo3 square pyramids. In the fourth O site, O(4) is bonded in a see-saw-like geometry to one Co(1), one Co(2), one Co(3), and one Co(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMn(CoO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.988
_cell_length_b   5.826
_cell_length_c   5.920
_cell_angle_alpha   92.023
_cell_angle_beta   62.187
_cell_angle_gamma   60.859
_symmetry_Int_Tables_number   1
_cell_volume   150.069
_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
  Mg  Mg0  1  0.500  1.000  0.500  1.0
  Mn  Mn1  1  0.500  0.500  1.000  1.0
  Co  Co2  1  0.000  0.500  0.500  1.0
  Co  Co3  1  1.000  0.000  0.000  1.0
  Co  Co4  1  0.500  0.000  1.000  1.0
  Co  Co5  1  0.000  0.500  1.000  1.0
  O  O6  1  0.439  0.290  0.791  1.0
  O  O7  1  0.026  0.255  0.754  1.0
  O  O8  1  0.502  0.753  0.778  1.0
  O  O9  1  0.948  0.754  0.804  1.0
  O  O10  1  0.052  0.246  0.196  1.0
  O  O11  1  0.498  0.247  0.222  1.0
  O  O12  1  0.974  0.745  0.246  1.0
  O  O13  1  0.561  0.710  0.209  1.0
[/CIF]
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The structure described by MgMn(CoO2)4 crystallizes in the triclinic P-1 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with six equivalent Mn(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, edges with two equivalent Co(2)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-15°. Mn(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MnO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, edges with two equivalent Co(2)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 7-15°. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form CoO6 octahedra that share corners with six equivalent Co(2)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-18°. In the second Co site, Co(2) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form CoO6 octahedra that share corners with six equivalent Co(1)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Co(3)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 9-18°. In the third Co site, Co(3) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form CoO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, edges with two equivalent Co(2)O6 octahedra, and edges with two equivalent Co(4)O6 octahedra. In the fourth Co site, Co(4) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form CoO6 octahedra that share edges with two equivalent Mg(1)O6 octahedra, edges with two equivalent Mn(1)O6 octahedra, edges with two equivalent Co(1)O6 octahedra, edges with two equivalent Co(2)O6 octahedra, and edges with two equivalent Co(3)O6 octahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Mn(1), one Co(3), and one Co(4) atom. In the second O site, O(2) is bonded to one Mg(1), one Mn(1), one Co(1), one Co(2), and one Co(4) atom to form a mixture of edge and corner-sharing OMgMnCo3 square pyramids. In the third O site, O(3) is bonded to one Mg(1), one Mn(1), one Co(1), one Co(2), and one Co(3) atom to form a mixture of edge and corner-sharing OMgMnCo3 square pyramids. In the fourth O site, O(4) is bonded in a see-saw-like geometry to one Co(1), one Co(2), one Co(3), and one Co(4) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMn(CoO2)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.988
_cell_length_b   5.826
_cell_length_c   5.920
_cell_angle_alpha   92.023
_cell_angle_beta   62.187
_cell_angle_gamma   60.859
_symmetry_Int_Tables_number   1
_cell_volume   150.069
_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
  Mg  Mg0  1  0.500  1.000  0.500  1.0
  Mn  Mn1  1  0.500  0.500  1.000  1.0
  Co  Co2  1  0.000  0.500  0.500  1.0
  Co  Co3  1  1.000  0.000  0.000  1.0
  Co  Co4  1  0.500  0.000  1.000  1.0
  Co  Co5  1  0.000  0.500  1.000  1.0
  O  O6  1  0.439  0.290  0.791  1.0
  O  O7  1  0.026  0.255  0.754  1.0
  O  O8  1  0.502  0.753  0.778  1.0
  O  O9  1  0.948  0.754  0.804  1.0
  O  O10  1  0.052  0.246  0.196  1.0
  O  O11  1  0.498  0.247  0.222  1.0
  O  O12  1  0.974  0.745  0.246  1.0
  O  O13  1  0.561  0.710  0.209  1.0
[/CIF]
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