The structure described by MgYCo(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form distorted MgO6 octahedra that share corners with two equivalent Y(1)O6 octahedra, edges with two equivalent W(1)O6 octahedra, edges with two equivalent W(2)O6 octahedra, and  a faceface with one Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-63°. Y(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(8) atom to form YO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with four equivalent W(1)O6 octahedra, corners with four equivalent W(2)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-63°. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom to form WO6 octahedra that share corners with four equivalent Y(1)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-56°. In the second W site, W(2) is bonded to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form WO6 octahedra that share corners with four equivalent Y(1)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-52°. Co(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one Y(1), and one W(1) atom. In the second O site, O(2) is bonded to one Mg(1), one Y(1), one W(1), and one Co(1) atom to form distorted OYMgCoW trigonal pyramids that share  a cornercorner with one O(4)YMgW2 trigonal pyramid, corners with three equivalent O(3)MgCoW2 trigonal pyramids, and  an edgeedge with one O(4)YMgW2 trigonal pyramid. In the third O site, O(3) is bonded to one Mg(1), one W(1), one W(2), and one Co(1) atom to form distorted OMgCoW2 trigonal pyramids that share  a cornercorner with one O(4)YMgW2 trigonal pyramid, corners with three equivalent O(2)YMgCoW trigonal pyramids, and  an edgeedge with one O(4)YMgW2 trigonal pyramid. In the fourth O site, O(4) is bonded to one Mg(1), one Y(1), one W(1), and one W(2) atom to form OYMgW2 trigonal pyramids that share  a cornercorner with one O(3)MgCoW2 trigonal pyramid,  a cornercorner with one O(2)YMgCoW trigonal pyramid,  an edgeedge with one O(3)MgCoW2 trigonal pyramid, and  an edgeedge with one O(2)YMgCoW trigonal pyramid. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mg(1), one Y(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a T-shaped geometry to one Mg(1), one Y(1), and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one W(1), one W(2), and one Co(1) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Y(1), one W(1), and one W(2) atom. is represented by the CIF file [CIF]
data_YMgCo(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.360
_cell_length_b   6.250
_cell_length_c   6.038
_cell_angle_alpha   107.434
_cell_angle_beta   116.004
_cell_angle_gamma   92.197
_symmetry_Int_Tables_number   1
_cell_volume   170.007
_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
  Y  Y0  1  0.596  0.707  0.044  1.0
  Mg  Mg1  1  0.883  0.843  0.653  1.0
  Co  Co2  1  0.234  0.355  0.177  1.0
  W  W3  1  0.871  0.346  0.576  1.0
  W  W4  1  0.365  0.065  0.594  1.0
  O  O5  1  0.121  0.645  0.835  1.0
  O  O6  1  0.613  0.531  0.349  1.0
  O  O7  1  0.153  0.168  0.816  1.0
  O  O8  1  0.598  0.016  0.393  1.0
  O  O9  1  0.631  0.918  0.821  1.0
  O  O10  1  0.066  0.812  0.378  1.0
  O  O11  1  0.099  0.256  0.383  1.0
  O  O12  1  0.642  0.371  0.792  1.0
[/CIF]
.
The structure described by MgYCo(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form distorted MgO6 octahedra that share corners with two equivalent Y(1)O6 octahedra, edges with two equivalent W(1)O6 octahedra, edges with two equivalent W(2)O6 octahedra, and  a faceface with one Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-63°. Y(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(8) atom to form YO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with four equivalent W(1)O6 octahedra, corners with four equivalent W(2)O6 octahedra, and  a faceface with one Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-63°. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(7), and one O(8) atom to form WO6 octahedra that share corners with four equivalent Y(1)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 40-56°. In the second W site, W(2) is bonded to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form WO6 octahedra that share corners with four equivalent Y(1)O6 octahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 38-52°. Co(1) is bonded in a trigonal planar geometry to one O(2), one O(3), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1), one Y(1), and one W(1) atom. In the second O site, O(2) is bonded to one Mg(1), one Y(1), one W(1), and one Co(1) atom to form distorted OYMgCoW trigonal pyramids that share  a cornercorner with one O(4)YMgW2 trigonal pyramid, corners with three equivalent O(3)MgCoW2 trigonal pyramids, and  an edgeedge with one O(4)YMgW2 trigonal pyramid. In the third O site, O(3) is bonded to one Mg(1), one W(1), one W(2), and one Co(1) atom to form distorted OMgCoW2 trigonal pyramids that share  a cornercorner with one O(4)YMgW2 trigonal pyramid, corners with three equivalent O(2)YMgCoW trigonal pyramids, and  an edgeedge with one O(4)YMgW2 trigonal pyramid. In the fourth O site, O(4) is bonded to one Mg(1), one Y(1), one W(1), and one W(2) atom to form OYMgW2 trigonal pyramids that share  a cornercorner with one O(3)MgCoW2 trigonal pyramid,  a cornercorner with one O(2)YMgCoW trigonal pyramid,  an edgeedge with one O(3)MgCoW2 trigonal pyramid, and  an edgeedge with one O(2)YMgCoW trigonal pyramid. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mg(1), one Y(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a T-shaped geometry to one Mg(1), one Y(1), and one W(2) atom. In the seventh O site, O(7) is bonded in a distorted trigonal non-coplanar geometry to one W(1), one W(2), and one Co(1) atom. In the eighth O site, O(8) is bonded in a trigonal planar geometry to one Y(1), one W(1), and one W(2) atom. is represented by the CIF file [CIF]
data_YMgCo(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.360
_cell_length_b   6.250
_cell_length_c   6.038
_cell_angle_alpha   107.434
_cell_angle_beta   116.004
_cell_angle_gamma   92.197
_symmetry_Int_Tables_number   1
_cell_volume   170.007
_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
  Y  Y0  1  0.596  0.707  0.044  1.0
  Mg  Mg1  1  0.883  0.843  0.653  1.0
  Co  Co2  1  0.234  0.355  0.177  1.0
  W  W3  1  0.871  0.346  0.576  1.0
  W  W4  1  0.365  0.065  0.594  1.0
  O  O5  1  0.121  0.645  0.835  1.0
  O  O6  1  0.613  0.531  0.349  1.0
  O  O7  1  0.153  0.168  0.816  1.0
  O  O8  1  0.598  0.016  0.393  1.0
  O  O9  1  0.631  0.918  0.821  1.0
  O  O10  1  0.066  0.812  0.378  1.0
  O  O11  1  0.099  0.256  0.383  1.0
  O  O12  1  0.642  0.371  0.792  1.0
[/CIF]
.