The material described by MgSb2O4 is Spinel-like structured and crystallizes in the orthorhombic Imma space group. Mg(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent Sb(1)O4 tetrahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with four equivalent Sb(2)O6 octahedra. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form SbO4 tetrahedra that share corners with six equivalent Mg(1)O6 octahedra and corners with six equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-72°. In the second Sb site, Sb(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with six equivalent Sb(1)O4 tetrahedra, edges with two equivalent Sb(2)O6 octahedra, and edges with four equivalent Mg(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Mg(1), one Sb(1), and one Sb(2) atom to form a mixture of distorted corner and edge-sharing OMg2Sb2 tetrahedra. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Sb(1), and two equivalent Sb(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg(SbO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.591
_cell_length_b   6.591
_cell_length_c   6.591
_cell_angle_alpha   123.016
_cell_angle_beta   115.392
_cell_angle_gamma   91.508
_symmetry_Int_Tables_number   1
_cell_volume   203.739
_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  0.000  0.500  0.000  1.0
  Mg  Mg1  1  0.000  0.000  0.500  1.0
  Sb  Sb2  1  0.605  0.855  0.750  1.0
  Sb  Sb3  1  0.395  0.145  0.250  1.0
  Sb  Sb4  1  0.000  0.500  0.500  1.0
  Sb  Sb5  1  0.500  0.500  0.000  1.0
  O  O6  1  0.805  0.258  0.547  1.0
  O  O7  1  0.245  0.749  0.004  1.0
  O  O8  1  0.211  0.258  0.953  1.0
  O  O9  1  0.245  0.242  0.496  1.0
  O  O10  1  0.755  0.758  0.504  1.0
  O  O11  1  0.755  0.251  0.996  1.0
  O  O12  1  0.789  0.742  0.047  1.0
  O  O13  1  0.195  0.742  0.453  1.0
[/CIF]
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The material described by MgSb2O4 is Spinel-like structured and crystallizes in the orthorhombic Imma space group. Mg(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent Sb(1)O4 tetrahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with four equivalent Sb(2)O6 octahedra. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form SbO4 tetrahedra that share corners with six equivalent Mg(1)O6 octahedra and corners with six equivalent Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-72°. In the second Sb site, Sb(2) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with six equivalent Sb(1)O4 tetrahedra, edges with two equivalent Sb(2)O6 octahedra, and edges with four equivalent Mg(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Mg(1), one Sb(1), and one Sb(2) atom to form a mixture of distorted corner and edge-sharing OMg2Sb2 tetrahedra. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Sb(1), and two equivalent Sb(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg(SbO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.591
_cell_length_b   6.591
_cell_length_c   6.591
_cell_angle_alpha   123.016
_cell_angle_beta   115.392
_cell_angle_gamma   91.508
_symmetry_Int_Tables_number   1
_cell_volume   203.739
_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  0.000  0.500  0.000  1.0
  Mg  Mg1  1  0.000  0.000  0.500  1.0
  Sb  Sb2  1  0.605  0.855  0.750  1.0
  Sb  Sb3  1  0.395  0.145  0.250  1.0
  Sb  Sb4  1  0.000  0.500  0.500  1.0
  Sb  Sb5  1  0.500  0.500  0.000  1.0
  O  O6  1  0.805  0.258  0.547  1.0
  O  O7  1  0.245  0.749  0.004  1.0
  O  O8  1  0.211  0.258  0.953  1.0
  O  O9  1  0.245  0.242  0.496  1.0
  O  O10  1  0.755  0.758  0.504  1.0
  O  O11  1  0.755  0.251  0.996  1.0
  O  O12  1  0.789  0.742  0.047  1.0
  O  O13  1  0.195  0.742  0.453  1.0
[/CIF]
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