The structure described by MgYAg(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. 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 four equivalent W(1)O6 octahedra and corners with four equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-59°. 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 and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-59°. 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 33-59°. Ag(1) is bonded in a distorted trigonal planar geometry to one O(2), one O(6), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one Y(1), and one W(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Y(1), one W(1), and one Ag(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(1), and one W(2) atom. 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 a mixture of distorted corner and edge-sharing OYMgW2 trigonal pyramids. 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 to one Mg(1), one Y(1), one W(2), and one Ag(1) atom to form a mixture of corner and edge-sharing OYMgAgW tetrahedra. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Mg(1), one W(1), one W(2), and one Ag(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Y(1), one W(1), and one W(2) atom. is represented by the CIF card [CIF]
data_YMgAg(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.492
_cell_length_b   6.268
_cell_length_c   5.965
_cell_angle_alpha   108.058
_cell_angle_beta   117.721
_cell_angle_gamma   90.264
_symmetry_Int_Tables_number   1
_cell_volume   170.090
_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  0.676  0.084  1.0
  Mg  Mg1  1  0.050  0.942  0.002  1.0
  Ag  Ag2  1  0.213  0.489  0.272  1.0
  W  W3  1  0.860  0.323  0.588  1.0
  W  W4  1  0.369  0.050  0.610  1.0
  O  O5  1  0.130  0.619  0.841  1.0
  O  O6  1  0.652  0.458  0.337  1.0
  O  O7  1  0.115  0.128  0.794  1.0
  O  O8  1  0.536  0.015  0.358  1.0
  O  O9  1  0.617  0.907  0.841  1.0
  O  O10  1  0.053  0.810  0.300  1.0
  O  O11  1  0.100  0.228  0.399  1.0
  O  O12  1  0.653  0.356  0.803  1.0
[/CIF]
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The structure described by MgYAg(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), one O(4), one O(5), one O(6), and one O(7) atom. 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 four equivalent W(1)O6 octahedra and corners with four equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-59°. 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 and edges with two equivalent W(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 26-59°. 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 33-59°. Ag(1) is bonded in a distorted trigonal planar geometry to one O(2), one O(6), and one O(7) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one Y(1), and one W(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Y(1), one W(1), and one Ag(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(1), and one W(2) atom. 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 a mixture of distorted corner and edge-sharing OYMgW2 trigonal pyramids. 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 to one Mg(1), one Y(1), one W(2), and one Ag(1) atom to form a mixture of corner and edge-sharing OYMgAgW tetrahedra. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Mg(1), one W(1), one W(2), and one Ag(1) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Y(1), one W(1), and one W(2) atom. is represented by the CIF card [CIF]
data_YMgAg(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.492
_cell_length_b   6.268
_cell_length_c   5.965
_cell_angle_alpha   108.058
_cell_angle_beta   117.721
_cell_angle_gamma   90.264
_symmetry_Int_Tables_number   1
_cell_volume   170.090
_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  0.676  0.084  1.0
  Mg  Mg1  1  0.050  0.942  0.002  1.0
  Ag  Ag2  1  0.213  0.489  0.272  1.0
  W  W3  1  0.860  0.323  0.588  1.0
  W  W4  1  0.369  0.050  0.610  1.0
  O  O5  1  0.130  0.619  0.841  1.0
  O  O6  1  0.652  0.458  0.337  1.0
  O  O7  1  0.115  0.128  0.794  1.0
  O  O8  1  0.536  0.015  0.358  1.0
  O  O9  1  0.617  0.907  0.841  1.0
  O  O10  1  0.053  0.810  0.300  1.0
  O  O11  1  0.100  0.228  0.399  1.0
  O  O12  1  0.653  0.356  0.803  1.0
[/CIF]
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