The material structure described by MgCo2(BiO3)4 crystallizes in the monoclinic P2 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form MgO6 octahedra that share corners with two equivalent Bi(3)O6 octahedra, corners with two equivalent Bi(4)O6 octahedra, edges with two equivalent Bi(1)O6 octahedra, edges with two equivalent Bi(2)O6 octahedra, and faces with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles are 43°. There are two 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(6) atoms to form CoO6 octahedra that share corners with four equivalent Bi(3)O6 octahedra, corners with four equivalent Bi(4)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra, and  an edgeedge with one Bi(2)O6 octahedra. The corner-sharing octahedral tilt angles are 48°. In the second Co site, Co(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form CoO6 octahedra that share corners with four equivalent Bi(1)O6 octahedra, corners with four equivalent Bi(2)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(4)O6 octahedra, and faces with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-51°. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form BiO6 octahedra that share corners with four equivalent Co(2)O6 octahedra, corners with four equivalent Bi(3)O6 octahedra,  an edgeedge with one Co(1)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-62°. In the second Bi site, Bi(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form BiO6 octahedra that share corners with four equivalent Co(2)O6 octahedra, corners with four equivalent Bi(4)O6 octahedra,  an edgeedge with one Co(1)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-62°. In the third Bi site, Bi(3) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form BiO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with four equivalent Co(1)O6 octahedra, corners with four equivalent Bi(1)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Bi(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-62°. In the fourth Bi site, Bi(4) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms to form BiO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with four equivalent Co(1)O6 octahedra, corners with four equivalent Bi(2)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Bi(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-62°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Co(2), one Bi(1), and one Bi(2) atom to form a mixture of distorted corner and edge-sharing OMgCoBi2 trigonal pyramids. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Co(1), one Bi(1), and one Bi(3) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one Bi(2), and one Bi(4) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Co(2), one Bi(1), and one Bi(3) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Co(2), one Bi(2), and one Bi(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Co(1), one Bi(3), and one Bi(4) atom. is represented by the CIF card [CIF]
data_MgCo2(BiO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.169
_cell_length_b   5.028
_cell_length_c   9.921
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.569
_symmetry_Int_Tables_number   1
_cell_volume   257.792
_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  0.000  0.503  1.0
  Co  Co1  1  0.000  0.000  0.004  1.0
  Co  Co2  1  0.500  0.500  0.504  1.0
  Bi  Bi3  1  1.000  0.000  0.327  1.0
  Bi  Bi4  1  0.000  0.000  0.681  1.0
  Bi  Bi5  1  0.500  0.500  0.170  1.0
  Bi  Bi6  1  0.500  0.500  0.838  1.0
  O  O7  1  0.180  0.785  0.504  1.0
  O  O8  1  0.169  0.788  0.163  1.0
  O  O9  1  0.169  0.790  0.845  1.0
  O  O10  1  0.347  0.265  0.354  1.0
  O  O11  1  0.347  0.263  0.653  1.0
  O  O12  1  0.305  0.281  0.004  1.0
  O  O13  1  0.695  0.719  0.004  1.0
  O  O14  1  0.653  0.735  0.354  1.0
  O  O15  1  0.653  0.737  0.653  1.0
  O  O16  1  0.831  0.212  0.163  1.0
  O  O17  1  0.831  0.210  0.845  1.0
  O  O18  1  0.820  0.215  0.504  1.0
[/CIF]
.
The material structure described by MgCo2(BiO3)4 crystallizes in the monoclinic P2 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form MgO6 octahedra that share corners with two equivalent Bi(3)O6 octahedra, corners with two equivalent Bi(4)O6 octahedra, edges with two equivalent Bi(1)O6 octahedra, edges with two equivalent Bi(2)O6 octahedra, and faces with two equivalent Co(2)O6 octahedra. The corner-sharing octahedral tilt angles are 43°. There are two 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(6) atoms to form CoO6 octahedra that share corners with four equivalent Bi(3)O6 octahedra, corners with four equivalent Bi(4)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra, and  an edgeedge with one Bi(2)O6 octahedra. The corner-sharing octahedral tilt angles are 48°. In the second Co site, Co(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form CoO6 octahedra that share corners with four equivalent Bi(1)O6 octahedra, corners with four equivalent Bi(2)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(4)O6 octahedra, and faces with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-51°. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form BiO6 octahedra that share corners with four equivalent Co(2)O6 octahedra, corners with four equivalent Bi(3)O6 octahedra,  an edgeedge with one Co(1)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-62°. In the second Bi site, Bi(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms to form BiO6 octahedra that share corners with four equivalent Co(2)O6 octahedra, corners with four equivalent Bi(4)O6 octahedra,  an edgeedge with one Co(1)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-62°. In the third Bi site, Bi(3) is bonded to two equivalent O(2), two equivalent O(4), and two equivalent O(6) atoms to form BiO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with four equivalent Co(1)O6 octahedra, corners with four equivalent Bi(1)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Bi(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-62°. In the fourth Bi site, Bi(4) is bonded to two equivalent O(3), two equivalent O(5), and two equivalent O(6) atoms to form BiO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with four equivalent Co(1)O6 octahedra, corners with four equivalent Bi(2)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, and  an edgeedge with one Bi(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-62°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Mg(1), one Co(2), one Bi(1), and one Bi(2) atom to form a mixture of distorted corner and edge-sharing OMgCoBi2 trigonal pyramids. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Co(1), one Bi(1), and one Bi(3) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Co(1), one Bi(2), and one Bi(4) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Co(2), one Bi(1), and one Bi(3) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one Mg(1), one Co(2), one Bi(2), and one Bi(4) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one Co(1), one Bi(3), and one Bi(4) atom. is represented by the CIF card [CIF]
data_MgCo2(BiO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.169
_cell_length_b   5.028
_cell_length_c   9.921
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.569
_symmetry_Int_Tables_number   1
_cell_volume   257.792
_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  0.000  0.503  1.0
  Co  Co1  1  0.000  0.000  0.004  1.0
  Co  Co2  1  0.500  0.500  0.504  1.0
  Bi  Bi3  1  1.000  0.000  0.327  1.0
  Bi  Bi4  1  0.000  0.000  0.681  1.0
  Bi  Bi5  1  0.500  0.500  0.170  1.0
  Bi  Bi6  1  0.500  0.500  0.838  1.0
  O  O7  1  0.180  0.785  0.504  1.0
  O  O8  1  0.169  0.788  0.163  1.0
  O  O9  1  0.169  0.790  0.845  1.0
  O  O10  1  0.347  0.265  0.354  1.0
  O  O11  1  0.347  0.263  0.653  1.0
  O  O12  1  0.305  0.281  0.004  1.0
  O  O13  1  0.695  0.719  0.004  1.0
  O  O14  1  0.653  0.735  0.354  1.0
  O  O15  1  0.653  0.737  0.653  1.0
  O  O16  1  0.831  0.212  0.163  1.0
  O  O17  1  0.831  0.210  0.845  1.0
  O  O18  1  0.820  0.215  0.504  1.0
[/CIF]
.