The crystal structure described by Mg2CoSbO6 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 8-coordinate geometry to one O(3), one O(4), two equivalent O(2), and four equivalent O(1) atoms. In the second Mg site, Mg(2) is bonded in a distorted rectangular see-saw-like geometry to one O(3), one O(4), and four equivalent O(2) atoms. Co(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form CoO6 octahedra that share corners with two equivalent Co(1)O6 octahedra and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 41-44°. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra and corners with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-48°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Mg(1), one Co(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Mg(1), two equivalent Mg(2), one Co(1), and one Sb(1) atom. In the third O site, O(3) is bonded to one Mg(1), one Mg(2), and two equivalent Sb(1) atoms to form distorted OMg2Sb2 tetrahedra that share corners with two equivalent O(3)Mg2Sb2 tetrahedra and corners with two equivalent O(4)Mg2Co2 trigonal pyramids. In the fourth O site, O(4) is bonded to one Mg(1), one Mg(2), and two equivalent Co(1) atoms to form distorted OMg2Co2 trigonal pyramids that share corners with two equivalent O(3)Mg2Sb2 tetrahedra and corners with two equivalent O(4)Mg2Co2 trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg2CoSbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.547
_cell_length_b   5.205
_cell_length_c   5.380
_cell_angle_alpha   89.245
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   211.328
_cell_formula_units_Z   2
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  0.750  0.479  0.570  1.0
  Mg  Mg1  1  0.250  0.521  0.430  1.0
  Mg  Mg2  1  0.750  0.986  0.036  1.0
  Mg  Mg3  1  0.250  0.014  0.964  1.0
  Co  Co4  1  0.500  0.500  0.000  1.0
  Co  Co5  1  0.000  0.500  0.000  1.0
  Sb  Sb6  1  0.500  0.000  0.500  1.0
  Sb  Sb7  1  0.000  0.000  0.500  1.0
  O  O8  1  0.433  0.680  0.676  1.0
  O  O9  1  0.069  0.829  0.185  1.0
  O  O10  1  0.933  0.320  0.324  1.0
  O  O11  1  0.569  0.171  0.815  1.0
  O  O12  1  0.431  0.829  0.185  1.0
  O  O13  1  0.931  0.171  0.815  1.0
  O  O14  1  0.250  0.141  0.573  1.0
  O  O15  1  0.067  0.680  0.676  1.0
  O  O16  1  0.750  0.614  0.931  1.0
  O  O17  1  0.567  0.320  0.324  1.0
  O  O18  1  0.750  0.859  0.427  1.0
  O  O19  1  0.250  0.386  0.069  1.0
[/CIF]
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The crystal structure described by Mg2CoSbO6 crystallizes in the monoclinic P2_1/m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 8-coordinate geometry to one O(3), one O(4), two equivalent O(2), and four equivalent O(1) atoms. In the second Mg site, Mg(2) is bonded in a distorted rectangular see-saw-like geometry to one O(3), one O(4), and four equivalent O(2) atoms. Co(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form CoO6 octahedra that share corners with two equivalent Co(1)O6 octahedra and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 41-44°. Sb(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SbO6 octahedra that share corners with two equivalent Sb(1)O6 octahedra and corners with four equivalent Co(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-48°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Mg(1), one Co(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Mg(1), two equivalent Mg(2), one Co(1), and one Sb(1) atom. In the third O site, O(3) is bonded to one Mg(1), one Mg(2), and two equivalent Sb(1) atoms to form distorted OMg2Sb2 tetrahedra that share corners with two equivalent O(3)Mg2Sb2 tetrahedra and corners with two equivalent O(4)Mg2Co2 trigonal pyramids. In the fourth O site, O(4) is bonded to one Mg(1), one Mg(2), and two equivalent Co(1) atoms to form distorted OMg2Co2 trigonal pyramids that share corners with two equivalent O(3)Mg2Sb2 tetrahedra and corners with two equivalent O(4)Mg2Co2 trigonal pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg2CoSbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.547
_cell_length_b   5.205
_cell_length_c   5.380
_cell_angle_alpha   89.245
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   211.328
_cell_formula_units_Z   2
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  0.750  0.479  0.570  1.0
  Mg  Mg1  1  0.250  0.521  0.430  1.0
  Mg  Mg2  1  0.750  0.986  0.036  1.0
  Mg  Mg3  1  0.250  0.014  0.964  1.0
  Co  Co4  1  0.500  0.500  0.000  1.0
  Co  Co5  1  0.000  0.500  0.000  1.0
  Sb  Sb6  1  0.500  0.000  0.500  1.0
  Sb  Sb7  1  0.000  0.000  0.500  1.0
  O  O8  1  0.433  0.680  0.676  1.0
  O  O9  1  0.069  0.829  0.185  1.0
  O  O10  1  0.933  0.320  0.324  1.0
  O  O11  1  0.569  0.171  0.815  1.0
  O  O12  1  0.431  0.829  0.185  1.0
  O  O13  1  0.931  0.171  0.815  1.0
  O  O14  1  0.250  0.141  0.573  1.0
  O  O15  1  0.067  0.680  0.676  1.0
  O  O16  1  0.750  0.614  0.931  1.0
  O  O17  1  0.567  0.320  0.324  1.0
  O  O18  1  0.750  0.859  0.427  1.0
  O  O19  1  0.250  0.386  0.069  1.0
[/CIF]
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