The compound described by MgZn2(WO4)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(1) and two equivalent O(3) atoms to form MgO4 tetrahedra that share corners with two equivalent W(1)O6 octahedra, corners with two equivalent W(2)O6 octahedra, and  an edgeedge with one Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-56°. There are two inequivalent W sites. In the first W site, W(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted WO6 octahedra that share corners with two equivalent Zn(1)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, edges with two equivalent W(2)O6 octahedra, and edges with two equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 31°. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form distorted WO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent Zn(1)O6 octahedra. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form ZnO6 octahedra that share corners with two equivalent W(1)O6 octahedra, edges with two equivalent W(1)O6 octahedra, edges with two equivalent W(2)O6 octahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 31°. In the second Zn site, Zn(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Mg(1), one W(2), and one Zn(2) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one W(1), one W(2), one Zn(1), and one Zn(2) atom. In the third O site, O(3) is bonded in a T-shaped geometry to one Mg(1), one W(1), and one Zn(1) atom. In the fourth O site, O(4) is bonded to one W(1), one W(2), one Zn(1), and one Zn(2) atom to form distorted corner-sharing OZn2W2 trigonal pyramids. is represented by the CIF file [CIF]
data_MgZn2(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.954
_cell_length_b   5.032
_cell_length_c   7.774
_cell_angle_alpha   104.570
_cell_angle_beta   104.190
_cell_angle_gamma   103.098
_symmetry_Int_Tables_number   1
_cell_volume   173.066
_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  0.508  0.757  0.515  1.0
  Zn  Zn1  1  0.319  0.569  0.139  1.0
  Zn  Zn2  1  0.664  0.414  0.828  1.0
  W  W3  1  0.834  0.084  0.168  1.0
  W  W4  1  0.179  0.928  0.857  1.0
  O  O5  1  0.816  0.651  0.679  1.0
  O  O6  1  0.542  0.261  0.079  1.0
  O  O7  1  0.667  0.914  0.332  1.0
  O  O8  1  0.977  0.216  0.934  1.0
  O  O9  1  0.166  0.418  0.332  1.0
  O  O10  1  0.363  0.028  0.679  1.0
  O  O11  1  0.457  0.718  0.934  1.0
  O  O12  1  0.037  0.817  0.079  1.0
[/CIF]
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The compound described by MgZn2(WO4)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(1) and two equivalent O(3) atoms to form MgO4 tetrahedra that share corners with two equivalent W(1)O6 octahedra, corners with two equivalent W(2)O6 octahedra, and  an edgeedge with one Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 3-56°. There are two inequivalent W sites. In the first W site, W(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form distorted WO6 octahedra that share corners with two equivalent Zn(1)O6 octahedra, corners with two equivalent Mg(1)O4 tetrahedra, edges with two equivalent W(2)O6 octahedra, and edges with two equivalent Zn(1)O6 octahedra. The corner-sharing octahedral tilt angles are 31°. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form distorted WO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent Zn(1)O6 octahedra. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms to form ZnO6 octahedra that share corners with two equivalent W(1)O6 octahedra, edges with two equivalent W(1)O6 octahedra, edges with two equivalent W(2)O6 octahedra, and  an edgeedge with one Mg(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 31°. In the second Zn site, Zn(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal non-coplanar geometry to one Mg(1), one W(2), and one Zn(2) atom. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one W(1), one W(2), one Zn(1), and one Zn(2) atom. In the third O site, O(3) is bonded in a T-shaped geometry to one Mg(1), one W(1), and one Zn(1) atom. In the fourth O site, O(4) is bonded to one W(1), one W(2), one Zn(1), and one Zn(2) atom to form distorted corner-sharing OZn2W2 trigonal pyramids. is represented by the CIF file [CIF]
data_MgZn2(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.954
_cell_length_b   5.032
_cell_length_c   7.774
_cell_angle_alpha   104.570
_cell_angle_beta   104.190
_cell_angle_gamma   103.098
_symmetry_Int_Tables_number   1
_cell_volume   173.066
_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  0.508  0.757  0.515  1.0
  Zn  Zn1  1  0.319  0.569  0.139  1.0
  Zn  Zn2  1  0.664  0.414  0.828  1.0
  W  W3  1  0.834  0.084  0.168  1.0
  W  W4  1  0.179  0.928  0.857  1.0
  O  O5  1  0.816  0.651  0.679  1.0
  O  O6  1  0.542  0.261  0.079  1.0
  O  O7  1  0.667  0.914  0.332  1.0
  O  O8  1  0.977  0.216  0.934  1.0
  O  O9  1  0.166  0.418  0.332  1.0
  O  O10  1  0.363  0.028  0.679  1.0
  O  O11  1  0.457  0.718  0.934  1.0
  O  O12  1  0.037  0.817  0.079  1.0
[/CIF]
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