The compound described by Mg2WSbO6 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 distorted rectangular see-saw-like geometry to one O(3), one O(4), and two equivalent O(1) atoms. In the second Mg site, Mg(2) is bonded to one O(3), one O(4), and two equivalent O(2) atoms to form distorted MgO4 tetrahedra that share corners with four equivalent W(1)O6 octahedra and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 63-81°. W(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form WO6 octahedra that share corners with two equivalent W(1)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra, and corners with four equivalent Mg(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 45-53°. 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, corners with four equivalent W(1)O6 octahedra, and corners with four equivalent Mg(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 45-54°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(2), one W(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)Mg2W2 trigonal pyramids. In the fourth O site, O(4) is bonded to one Mg(1), one Mg(2), and two equivalent W(1) atoms to form distorted OMg2W2 trigonal pyramids that share corners with two equivalent O(3)Mg2Sb2 tetrahedra and corners with two equivalent O(4)Mg2W2 trigonal pyramids. is represented by the CIF card [CIF]
data_Mg2SbWO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.951
_cell_length_b   5.514
_cell_length_c   5.526
_cell_angle_alpha   86.219
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   241.747
_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  0.250  0.546  0.503  1.0
  Mg  Mg1  1  0.750  0.454  0.497  1.0
  Mg  Mg2  1  0.250  0.029  0.981  1.0
  Mg  Mg3  1  0.750  0.971  0.019  1.0
  Sb  Sb4  1  0.500  0.500  0.000  1.0
  Sb  Sb5  1  0.000  0.500  0.000  1.0
  W  W6  1  0.500  0.000  0.500  1.0
  W  W7  1  0.000  0.000  0.500  1.0
  O  O8  1  0.572  0.685  0.631  1.0
  O  O9  1  0.925  0.156  0.809  1.0
  O  O10  1  0.072  0.315  0.369  1.0
  O  O11  1  0.425  0.844  0.191  1.0
  O  O12  1  0.575  0.156  0.809  1.0
  O  O13  1  0.075  0.844  0.191  1.0
  O  O14  1  0.750  0.607  0.143  1.0
  O  O15  1  0.928  0.685  0.631  1.0
  O  O16  1  0.250  0.911  0.632  1.0
  O  O17  1  0.428  0.315  0.369  1.0
  O  O18  1  0.250  0.393  0.857  1.0
  O  O19  1  0.750  0.089  0.368  1.0
[/CIF]
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The compound described by Mg2WSbO6 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 distorted rectangular see-saw-like geometry to one O(3), one O(4), and two equivalent O(1) atoms. In the second Mg site, Mg(2) is bonded to one O(3), one O(4), and two equivalent O(2) atoms to form distorted MgO4 tetrahedra that share corners with four equivalent W(1)O6 octahedra and corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 63-81°. W(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form WO6 octahedra that share corners with two equivalent W(1)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra, and corners with four equivalent Mg(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 45-53°. 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, corners with four equivalent W(1)O6 octahedra, and corners with four equivalent Mg(2)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 45-54°. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(1), and one Sb(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(2), one W(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)Mg2W2 trigonal pyramids. In the fourth O site, O(4) is bonded to one Mg(1), one Mg(2), and two equivalent W(1) atoms to form distorted OMg2W2 trigonal pyramids that share corners with two equivalent O(3)Mg2Sb2 tetrahedra and corners with two equivalent O(4)Mg2W2 trigonal pyramids. is represented by the CIF card [CIF]
data_Mg2SbWO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.951
_cell_length_b   5.514
_cell_length_c   5.526
_cell_angle_alpha   86.219
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   241.747
_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  0.250  0.546  0.503  1.0
  Mg  Mg1  1  0.750  0.454  0.497  1.0
  Mg  Mg2  1  0.250  0.029  0.981  1.0
  Mg  Mg3  1  0.750  0.971  0.019  1.0
  Sb  Sb4  1  0.500  0.500  0.000  1.0
  Sb  Sb5  1  0.000  0.500  0.000  1.0
  W  W6  1  0.500  0.000  0.500  1.0
  W  W7  1  0.000  0.000  0.500  1.0
  O  O8  1  0.572  0.685  0.631  1.0
  O  O9  1  0.925  0.156  0.809  1.0
  O  O10  1  0.072  0.315  0.369  1.0
  O  O11  1  0.425  0.844  0.191  1.0
  O  O12  1  0.575  0.156  0.809  1.0
  O  O13  1  0.075  0.844  0.191  1.0
  O  O14  1  0.750  0.607  0.143  1.0
  O  O15  1  0.928  0.685  0.631  1.0
  O  O16  1  0.250  0.911  0.632  1.0
  O  O17  1  0.428  0.315  0.369  1.0
  O  O18  1  0.250  0.393  0.857  1.0
  O  O19  1  0.750  0.089  0.368  1.0
[/CIF]
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