The material described by Mg(Sb2O5)2 crystallizes in the orthorhombic Amm2 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted MgO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, and edges with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-49°. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms to form SbO6 octahedra that share  a cornercorner with one Mg(1)O6 octahedra, corners with three equivalent Sb(1)O6 octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-51°. In the second Sb site, Sb(2) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Mg(1) and two equivalent Sb(1) atoms to form distorted OMg2Sb2 tetrahedra that share corners with two equivalent O(1)Mg2Sb2 tetrahedra and edges with four equivalent O(3)MgSb3 trigonal pyramids. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Sb(1), and one Sb(2) atom. In the third O site, O(3) is bonded to one Mg(1), one Sb(2), and two equivalent Sb(1) atoms to form distorted OMgSb3 trigonal pyramids that share corners with three equivalent O(3)MgSb3 trigonal pyramids and edges with two equivalent O(1)Mg2Sb2 tetrahedra. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Sb(1) and two equivalent Sb(2) atoms. In the fifth O site, O(5) is bonded in a water-like geometry to one Sb(1) and one Sb(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to two equivalent Sb(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg(Sb2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.700
_cell_length_b   5.561
_cell_length_c   4.018
_cell_angle_alpha   111.181
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   222.907
_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  0.000  0.112  0.556  1.0
  Sb  Sb1  1  0.178  0.759  0.880  1.0
  Sb  Sb2  1  0.319  0.227  0.613  1.0
  Sb  Sb3  1  0.681  0.227  0.613  1.0
  Sb  Sb4  1  0.822  0.759  0.880  1.0
  O  O5  1  0.000  0.934  0.967  1.0
  O  O6  1  0.131  0.391  0.695  1.0
  O  O7  1  0.162  0.848  0.424  1.0
  O  O8  1  0.266  0.114  0.057  1.0
  O  O9  1  0.347  0.608  0.804  1.0
  O  O10  1  0.500  0.132  0.566  1.0
  O  O11  1  0.653  0.608  0.804  1.0
  O  O12  1  0.869  0.391  0.695  1.0
  O  O13  1  0.734  0.114  0.057  1.0
  O  O14  1  0.838  0.848  0.424  1.0
[/CIF]
.
The material described by Mg(Sb2O5)2 crystallizes in the orthorhombic Amm2 space group. Mg(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted MgO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with two equivalent Sb(1)O6 octahedra, and edges with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 29-49°. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(1), one O(2), one O(4), one O(5), and two equivalent O(3) atoms to form SbO6 octahedra that share  a cornercorner with one Mg(1)O6 octahedra, corners with three equivalent Sb(1)O6 octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-51°. In the second Sb site, Sb(2) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(5), one O(6), and two equivalent O(4) atoms. There are six inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Mg(1) and two equivalent Sb(1) atoms to form distorted OMg2Sb2 tetrahedra that share corners with two equivalent O(1)Mg2Sb2 tetrahedra and edges with four equivalent O(3)MgSb3 trigonal pyramids. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to one Mg(1), one Sb(1), and one Sb(2) atom. In the third O site, O(3) is bonded to one Mg(1), one Sb(2), and two equivalent Sb(1) atoms to form distorted OMgSb3 trigonal pyramids that share corners with three equivalent O(3)MgSb3 trigonal pyramids and edges with two equivalent O(1)Mg2Sb2 tetrahedra. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Sb(1) and two equivalent Sb(2) atoms. In the fifth O site, O(5) is bonded in a water-like geometry to one Sb(1) and one Sb(2) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to two equivalent Sb(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Mg(Sb2O5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.700
_cell_length_b   5.561
_cell_length_c   4.018
_cell_angle_alpha   111.181
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   222.907
_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  0.000  0.112  0.556  1.0
  Sb  Sb1  1  0.178  0.759  0.880  1.0
  Sb  Sb2  1  0.319  0.227  0.613  1.0
  Sb  Sb3  1  0.681  0.227  0.613  1.0
  Sb  Sb4  1  0.822  0.759  0.880  1.0
  O  O5  1  0.000  0.934  0.967  1.0
  O  O6  1  0.131  0.391  0.695  1.0
  O  O7  1  0.162  0.848  0.424  1.0
  O  O8  1  0.266  0.114  0.057  1.0
  O  O9  1  0.347  0.608  0.804  1.0
  O  O10  1  0.500  0.132  0.566  1.0
  O  O11  1  0.653  0.608  0.804  1.0
  O  O12  1  0.869  0.391  0.695  1.0
  O  O13  1  0.734  0.114  0.057  1.0
  O  O14  1  0.838  0.848  0.424  1.0
[/CIF]
.