The compound described by MgYCu(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom. Y(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(7) atom to form YO6 octahedra that share corners with four equivalent W(1)O6 octahedra and corners with four equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-62°. 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 distorted WO6 octahedra that share corners with four equivalent Y(1)O6 octahedra and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-62°. 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 distorted WO6 octahedra that share corners with four equivalent Y(1)O6 octahedra and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-62°. Cu(1) is bonded in a linear geometry to one O(3) and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Y(1) and one W(1) atom. In the second O site, O(2) is bonded in a T-shaped geometry to one Mg(1), one Y(1), and one W(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one W(2), and one Cu(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one Y(1), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a T-shaped geometry to one Mg(1), one Y(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Y(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Mg(1), one Y(1), one W(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one W(2), and one Cu(1) atom. is represented by the CIF card [CIF]
data_YMgCu(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.327
_cell_length_b   6.306
_cell_length_c   5.988
_cell_angle_alpha   104.230
_cell_angle_beta   114.096
_cell_angle_gamma   92.486
_symmetry_Int_Tables_number   1
_cell_volume   175.617
_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  0.625  0.723  0.100  1.0
  Mg  Mg1  1  0.625  0.223  0.100  1.0
  Cu  Cu2  1  0.125  0.224  0.100  1.0
  W  W3  1  0.905  0.391  0.637  1.0
  W  W4  1  0.344  0.055  0.562  1.0
  O  O5  1  0.150  0.633  0.866  1.0
  O  O6  1  0.653  0.503  0.353  1.0
  O  O7  1  0.171  0.176  0.807  1.0
  O  O8  1  0.609  0.068  0.386  1.0
  O  O9  1  0.596  0.943  0.847  1.0
  O  O10  1  0.099  0.813  0.333  1.0
  O  O11  1  0.640  0.378  0.814  1.0
  O  O12  1  0.079  0.270  0.393  1.0
[/CIF]
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The compound described by MgYCu(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), one O(7), and one O(8) atom. Y(1) is bonded to one O(1), one O(2), one O(4), one O(5), one O(6), and one O(7) atom to form YO6 octahedra that share corners with four equivalent W(1)O6 octahedra and corners with four equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-62°. 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 distorted WO6 octahedra that share corners with four equivalent Y(1)O6 octahedra and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-62°. 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 distorted WO6 octahedra that share corners with four equivalent Y(1)O6 octahedra and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 34-62°. Cu(1) is bonded in a linear geometry to one O(3) and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a distorted bent 150 degrees geometry to one Y(1) and one W(1) atom. In the second O site, O(2) is bonded in a T-shaped geometry to one Mg(1), one Y(1), and one W(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one W(2), and one Cu(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one Y(1), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a T-shaped geometry to one Mg(1), one Y(1), and one W(2) atom. In the sixth O site, O(6) is bonded in a distorted bent 150 degrees geometry to one Y(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Mg(1), one Y(1), one W(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Mg(1), one W(1), one W(2), and one Cu(1) atom. is represented by the CIF card [CIF]
data_YMgCu(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.327
_cell_length_b   6.306
_cell_length_c   5.988
_cell_angle_alpha   104.230
_cell_angle_beta   114.096
_cell_angle_gamma   92.486
_symmetry_Int_Tables_number   1
_cell_volume   175.617
_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  0.625  0.723  0.100  1.0
  Mg  Mg1  1  0.625  0.223  0.100  1.0
  Cu  Cu2  1  0.125  0.224  0.100  1.0
  W  W3  1  0.905  0.391  0.637  1.0
  W  W4  1  0.344  0.055  0.562  1.0
  O  O5  1  0.150  0.633  0.866  1.0
  O  O6  1  0.653  0.503  0.353  1.0
  O  O7  1  0.171  0.176  0.807  1.0
  O  O8  1  0.609  0.068  0.386  1.0
  O  O9  1  0.596  0.943  0.847  1.0
  O  O10  1  0.099  0.813  0.333  1.0
  O  O11  1  0.640  0.378  0.814  1.0
  O  O12  1  0.079  0.270  0.393  1.0
[/CIF]
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