The material structure described by Mg(WO2)2 is beta indium sulfide-derived structured and crystallizes in the monoclinic Cm space group. There are six inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to one O(13), one O(3), and two equivalent O(1) atoms to form MgO4 tetrahedra that share  a cornercorner with one Mg(6)O6 octahedra, corners with two equivalent Mg(3)O6 octahedra, corners with two equivalent W(6)O6 octahedra, corners with three equivalent W(3)O6 octahedra, and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-61°. In the second Mg site, Mg(2) is bonded to one O(5), one O(9), two equivalent O(4), and two equivalent O(7) atoms to form MgO6 octahedra that share  an edgeedge with one Mg(3)O6 octahedra,  an edgeedge with one Mg(5)O6 octahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent W(4)O6 octahedra. In the third Mg site, Mg(3) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(7) atoms to form MgO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one W(3)O6 octahedra, and edges with four equivalent W(1)O6 octahedra. In the fourth Mg site, Mg(4) is bonded to one O(11), one O(15), two equivalent O(10), and two equivalent O(12) atoms to form MgO6 octahedra that share  an edgeedge with one Mg(5)O6 octahedra,  an edgeedge with one Mg(6)O6 octahedra, edges with two equivalent W(4)O6 octahedra, and edges with two equivalent W(6)O6 octahedra. In the fifth Mg site, Mg(5) is bonded to one O(14), one O(6), two equivalent O(12), and two equivalent O(4) atoms to form MgO6 octahedra that share  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mg(4)O6 octahedra, and edges with four equivalent W(4)O6 octahedra. In the sixth Mg site, Mg(6) is bonded to one O(13), one O(18), two equivalent O(10), and two equivalent O(17) atoms to form MgO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra,  an edgeedge with one Mg(4)O6 octahedra,  an edgeedge with one W(3)O6 octahedra, and edges with four equivalent W(6)O6 octahedra. There are nine inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form distorted WO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one W(3)O6 octahedra, edges with two equivalent Mg(3)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. In the second W site, W(2) is bonded in a 3-coordinate geometry to one O(2) and two equivalent O(4) atoms. In the third W site, W(3) is bonded to one O(16), one O(3), two equivalent O(1), and two equivalent O(17) atoms to form distorted WO6 octahedra that share corners with three equivalent Mg(1)O4 tetrahedra,  an edgeedge with one Mg(3)O6 octahedra,  an edgeedge with one Mg(6)O6 octahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent W(6)O6 octahedra. In the fourth W site, W(4) is bonded to one O(11), one O(12), one O(14), one O(4), one O(6), and one O(9) atom to form distorted WO6 octahedra that share  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mg(4)O6 octahedra, edges with two equivalent Mg(5)O6 octahedra, and edges with two equivalent W(4)O6 octahedra. In the fifth W site, W(5) is bonded in a distorted trigonal planar geometry to one O(15) and two equivalent O(10) atoms. In the sixth W site, W(6) is bonded to one O(10), one O(13), one O(15), one O(16), one O(17), and one O(18) atom to form distorted WO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra,  an edgeedge with one Mg(4)O6 octahedra,  an edgeedge with one W(3)O6 octahedra, edges with two equivalent Mg(6)O6 octahedra, and edges with two equivalent W(6)O6 octahedra. In the seventh W site, W(7) is bonded in a distorted trigonal planar geometry to one O(14) and two equivalent O(7) atoms. In the eighth W site, W(8) is bonded in a distorted trigonal planar geometry to one O(11) and two equivalent O(12) atoms. In the ninth W site, W(9) is bonded in a 2-coordinate geometry to one O(16), one O(8), and two equivalent O(17) atoms. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Mg(1), one Mg(3), one W(1), and one W(3) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(3), one W(2), and two equivalent W(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), one W(3), and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded to one Mg(2), one Mg(5), one W(2), and one W(4) atom to form a mixture of distorted edge and corner-sharing OMg2W2 trigonal pyramids. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Mg(2) and two equivalent W(1) atoms. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mg(5) and two equivalent W(4) atoms. In the seventh O site, O(7) is bonded to one Mg(2), one Mg(3), one W(1), and one W(7) atom to form a mixture of edge and corner-sharing OMg2W2 trigonal pyramids. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Mg(3), one W(9), and two equivalent W(1) atoms. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Mg(2) and two equivalent W(4) atoms. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Mg(4), one Mg(6), one W(5), and one W(6) atom. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Mg(4), one W(8), and two equivalent W(4) atoms. In the twelfth O site, O(12) is bonded to one Mg(4), one Mg(5), one W(4), and one W(8) atom to form a mixture of distorted edge and corner-sharing OMg2W2 trigonal pyramids. In the thirteenth O site, O(13) is bonded to one Mg(1), one Mg(6), and two equivalent W(6) atoms to form distorted OMg2W2 tetrahedra that share corners with two equivalent O(16)W4 tetrahedra and corners with four equivalent O(17)MgW3 trigonal pyramids. In the fourteenth O site, O(14) is bonded in a distorted rectangular see-saw-like geometry to one Mg(5), one W(7), and two equivalent W(4) atoms. In the fifteenth O site, O(15) is bonded in a distorted rectangular see-saw-like geometry to one Mg(4), one W(5), and two equivalent W(6) atoms. In the sixteenth O site, O(16) is bonded to one W(3), one W(9), and two equivalent W(6) atoms to form distorted OW4 tetrahedra that share corners with two equivalent O(13)Mg2W2 tetrahedra, corners with two equivalent O(17)MgW3 trigonal pyramids, and edges with two equivalent O(17)MgW3 trigonal pyramids. In the seventeenth O site, O(17) is bonded to one Mg(6), one W(3), one W(6), and one W(9) atom to form OMgW3 trigonal pyramids that share  a cornercorner with one O(16)W4 tetrahedra, corners with two equivalent O(13)Mg2W2 tetrahedra,  a cornercorner with one O(17)MgW3 trigonal pyramid,  an edgeedge with one O(16)W4 tetrahedra, and  an edgeedge with one O(17)MgW3 trigonal pyramid. In the eighteenth O site, O(18) is bonded in a distorted trigonal non-coplanar geometry to one Mg(6) and two equivalent W(6) atoms. is represented by the CIF card [CIF]
data_Mg(WO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.229
_cell_length_b   6.229
_cell_length_c   14.915
_cell_angle_alpha   91.971
_cell_angle_beta   91.971
_cell_angle_gamma   57.618
_symmetry_Int_Tables_number   1
_cell_volume   488.277
_cell_formula_units_Z   6
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  0.343  0.343  0.044  1.0
  Mg  Mg1  1  0.647  0.647  0.326  1.0
  Mg  Mg2  1  0.808  0.808  0.161  1.0
  Mg  Mg3  1  0.346  0.346  0.665  1.0
  Mg  Mg4  1  0.490  0.490  0.502  1.0
  Mg  Mg5  1  0.198  0.198  0.840  1.0
  W  W6  1  0.851  0.292  0.166  1.0
  W  W7  1  0.035  0.035  0.371  1.0
  W  W8  1  0.017  0.017  0.028  1.0
  W  W9  1  0.292  0.851  0.166  1.0
  W  W10  1  0.445  0.001  0.488  1.0
  W  W11  1  0.686  0.686  0.761  1.0
  W  W12  1  0.001  0.445  0.488  1.0
  W  W13  1  0.234  0.687  0.843  1.0
  W  W14  1  0.237  0.237  0.310  1.0
  W  W15  1  0.687  0.234  0.843  1.0
  W  W16  1  0.010  0.010  0.558  1.0
  W  W17  1  0.640  0.640  0.914  1.0
  O  O18  1  0.686  0.130  0.091  1.0
  O  O19  1  0.957  0.957  0.247  1.0
  O  O20  1  0.130  0.686  0.091  1.0
  O  O21  1  0.183  0.183  0.097  1.0
  O  O22  1  0.360  0.759  0.413  1.0
  O  O23  1  0.509  0.509  0.232  1.0
  O  O24  1  0.663  0.663  0.560  1.0
  O  O25  1  0.510  0.956  0.244  1.0
  O  O26  1  0.759  0.360  0.413  1.0
  O  O27  1  0.642  0.642  0.095  1.0
  O  O28  1  0.788  0.788  0.418  1.0
  O  O29  1  0.956  0.510  0.244  1.0
  O  O30  1  0.060  0.533  0.759  1.0
  O  O31  1  0.183  0.183  0.597  1.0
  O  O32  1  0.152  0.639  0.566  1.0
  O  O33  1  0.533  0.060  0.759  1.0
  O  O34  1  0.351  0.351  0.915  1.0
  O  O35  1  0.341  0.341  0.418  1.0
  O  O36  1  0.512  0.512  0.730  1.0
  O  O37  1  0.639  0.152  0.566  1.0
  O  O38  1  0.886  0.886  0.918  1.0
  O  O39  1  0.914  0.296  0.938  1.0
  O  O40  1  0.029  0.029  0.778  1.0
  O  O41  1  0.296  0.914  0.938  1.0
[/CIF]
.
The material structure described by Mg(WO2)2 is beta indium sulfide-derived structured and crystallizes in the monoclinic Cm space group. There are six inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to one O(13), one O(3), and two equivalent O(1) atoms to form MgO4 tetrahedra that share  a cornercorner with one Mg(6)O6 octahedra, corners with two equivalent Mg(3)O6 octahedra, corners with two equivalent W(6)O6 octahedra, corners with three equivalent W(3)O6 octahedra, and corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 42-61°. In the second Mg site, Mg(2) is bonded to one O(5), one O(9), two equivalent O(4), and two equivalent O(7) atoms to form MgO6 octahedra that share  an edgeedge with one Mg(3)O6 octahedra,  an edgeedge with one Mg(5)O6 octahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent W(4)O6 octahedra. In the third Mg site, Mg(3) is bonded to one O(2), one O(8), two equivalent O(1), and two equivalent O(7) atoms to form MgO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one W(3)O6 octahedra, and edges with four equivalent W(1)O6 octahedra. In the fourth Mg site, Mg(4) is bonded to one O(11), one O(15), two equivalent O(10), and two equivalent O(12) atoms to form MgO6 octahedra that share  an edgeedge with one Mg(5)O6 octahedra,  an edgeedge with one Mg(6)O6 octahedra, edges with two equivalent W(4)O6 octahedra, and edges with two equivalent W(6)O6 octahedra. In the fifth Mg site, Mg(5) is bonded to one O(14), one O(6), two equivalent O(12), and two equivalent O(4) atoms to form MgO6 octahedra that share  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mg(4)O6 octahedra, and edges with four equivalent W(4)O6 octahedra. In the sixth Mg site, Mg(6) is bonded to one O(13), one O(18), two equivalent O(10), and two equivalent O(17) atoms to form MgO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra,  an edgeedge with one Mg(4)O6 octahedra,  an edgeedge with one W(3)O6 octahedra, and edges with four equivalent W(6)O6 octahedra. There are nine inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(5), one O(7), and one O(8) atom to form distorted WO6 octahedra that share corners with two equivalent Mg(1)O4 tetrahedra,  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one W(3)O6 octahedra, edges with two equivalent Mg(3)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. In the second W site, W(2) is bonded in a 3-coordinate geometry to one O(2) and two equivalent O(4) atoms. In the third W site, W(3) is bonded to one O(16), one O(3), two equivalent O(1), and two equivalent O(17) atoms to form distorted WO6 octahedra that share corners with three equivalent Mg(1)O4 tetrahedra,  an edgeedge with one Mg(3)O6 octahedra,  an edgeedge with one Mg(6)O6 octahedra, edges with two equivalent W(1)O6 octahedra, and edges with two equivalent W(6)O6 octahedra. In the fourth W site, W(4) is bonded to one O(11), one O(12), one O(14), one O(4), one O(6), and one O(9) atom to form distorted WO6 octahedra that share  an edgeedge with one Mg(2)O6 octahedra,  an edgeedge with one Mg(4)O6 octahedra, edges with two equivalent Mg(5)O6 octahedra, and edges with two equivalent W(4)O6 octahedra. In the fifth W site, W(5) is bonded in a distorted trigonal planar geometry to one O(15) and two equivalent O(10) atoms. In the sixth W site, W(6) is bonded to one O(10), one O(13), one O(15), one O(16), one O(17), and one O(18) atom to form distorted WO6 octahedra that share  a cornercorner with one Mg(1)O4 tetrahedra,  an edgeedge with one Mg(4)O6 octahedra,  an edgeedge with one W(3)O6 octahedra, edges with two equivalent Mg(6)O6 octahedra, and edges with two equivalent W(6)O6 octahedra. In the seventh W site, W(7) is bonded in a distorted trigonal planar geometry to one O(14) and two equivalent O(7) atoms. In the eighth W site, W(8) is bonded in a distorted trigonal planar geometry to one O(11) and two equivalent O(12) atoms. In the ninth W site, W(9) is bonded in a 2-coordinate geometry to one O(16), one O(8), and two equivalent O(17) atoms. There are eighteen inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Mg(1), one Mg(3), one W(1), and one W(3) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Mg(3), one W(2), and two equivalent W(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), one W(3), and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded to one Mg(2), one Mg(5), one W(2), and one W(4) atom to form a mixture of distorted edge and corner-sharing OMg2W2 trigonal pyramids. In the fifth O site, O(5) is bonded in a distorted trigonal non-coplanar geometry to one Mg(2) and two equivalent W(1) atoms. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mg(5) and two equivalent W(4) atoms. In the seventh O site, O(7) is bonded to one Mg(2), one Mg(3), one W(1), and one W(7) atom to form a mixture of edge and corner-sharing OMg2W2 trigonal pyramids. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Mg(3), one W(9), and two equivalent W(1) atoms. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Mg(2) and two equivalent W(4) atoms. In the tenth O site, O(10) is bonded in a rectangular see-saw-like geometry to one Mg(4), one Mg(6), one W(5), and one W(6) atom. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Mg(4), one W(8), and two equivalent W(4) atoms. In the twelfth O site, O(12) is bonded to one Mg(4), one Mg(5), one W(4), and one W(8) atom to form a mixture of distorted edge and corner-sharing OMg2W2 trigonal pyramids. In the thirteenth O site, O(13) is bonded to one Mg(1), one Mg(6), and two equivalent W(6) atoms to form distorted OMg2W2 tetrahedra that share corners with two equivalent O(16)W4 tetrahedra and corners with four equivalent O(17)MgW3 trigonal pyramids. In the fourteenth O site, O(14) is bonded in a distorted rectangular see-saw-like geometry to one Mg(5), one W(7), and two equivalent W(4) atoms. In the fifteenth O site, O(15) is bonded in a distorted rectangular see-saw-like geometry to one Mg(4), one W(5), and two equivalent W(6) atoms. In the sixteenth O site, O(16) is bonded to one W(3), one W(9), and two equivalent W(6) atoms to form distorted OW4 tetrahedra that share corners with two equivalent O(13)Mg2W2 tetrahedra, corners with two equivalent O(17)MgW3 trigonal pyramids, and edges with two equivalent O(17)MgW3 trigonal pyramids. In the seventeenth O site, O(17) is bonded to one Mg(6), one W(3), one W(6), and one W(9) atom to form OMgW3 trigonal pyramids that share  a cornercorner with one O(16)W4 tetrahedra, corners with two equivalent O(13)Mg2W2 tetrahedra,  a cornercorner with one O(17)MgW3 trigonal pyramid,  an edgeedge with one O(16)W4 tetrahedra, and  an edgeedge with one O(17)MgW3 trigonal pyramid. In the eighteenth O site, O(18) is bonded in a distorted trigonal non-coplanar geometry to one Mg(6) and two equivalent W(6) atoms. is represented by the CIF card [CIF]
data_Mg(WO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.229
_cell_length_b   6.229
_cell_length_c   14.915
_cell_angle_alpha   91.971
_cell_angle_beta   91.971
_cell_angle_gamma   57.618
_symmetry_Int_Tables_number   1
_cell_volume   488.277
_cell_formula_units_Z   6
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  0.343  0.343  0.044  1.0
  Mg  Mg1  1  0.647  0.647  0.326  1.0
  Mg  Mg2  1  0.808  0.808  0.161  1.0
  Mg  Mg3  1  0.346  0.346  0.665  1.0
  Mg  Mg4  1  0.490  0.490  0.502  1.0
  Mg  Mg5  1  0.198  0.198  0.840  1.0
  W  W6  1  0.851  0.292  0.166  1.0
  W  W7  1  0.035  0.035  0.371  1.0
  W  W8  1  0.017  0.017  0.028  1.0
  W  W9  1  0.292  0.851  0.166  1.0
  W  W10  1  0.445  0.001  0.488  1.0
  W  W11  1  0.686  0.686  0.761  1.0
  W  W12  1  0.001  0.445  0.488  1.0
  W  W13  1  0.234  0.687  0.843  1.0
  W  W14  1  0.237  0.237  0.310  1.0
  W  W15  1  0.687  0.234  0.843  1.0
  W  W16  1  0.010  0.010  0.558  1.0
  W  W17  1  0.640  0.640  0.914  1.0
  O  O18  1  0.686  0.130  0.091  1.0
  O  O19  1  0.957  0.957  0.247  1.0
  O  O20  1  0.130  0.686  0.091  1.0
  O  O21  1  0.183  0.183  0.097  1.0
  O  O22  1  0.360  0.759  0.413  1.0
  O  O23  1  0.509  0.509  0.232  1.0
  O  O24  1  0.663  0.663  0.560  1.0
  O  O25  1  0.510  0.956  0.244  1.0
  O  O26  1  0.759  0.360  0.413  1.0
  O  O27  1  0.642  0.642  0.095  1.0
  O  O28  1  0.788  0.788  0.418  1.0
  O  O29  1  0.956  0.510  0.244  1.0
  O  O30  1  0.060  0.533  0.759  1.0
  O  O31  1  0.183  0.183  0.597  1.0
  O  O32  1  0.152  0.639  0.566  1.0
  O  O33  1  0.533  0.060  0.759  1.0
  O  O34  1  0.351  0.351  0.915  1.0
  O  O35  1  0.341  0.341  0.418  1.0
  O  O36  1  0.512  0.512  0.730  1.0
  O  O37  1  0.639  0.152  0.566  1.0
  O  O38  1  0.886  0.886  0.918  1.0
  O  O39  1  0.914  0.296  0.938  1.0
  O  O40  1  0.029  0.029  0.778  1.0
  O  O41  1  0.296  0.914  0.938  1.0
[/CIF]
.