The structure described by ErAg(WO4)2 crystallizes in the monoclinic C2/m space group. Er(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form distorted edge-sharing WO6 octahedra. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form distorted edge-sharing WO6 octahedra. Ag(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), two equivalent O(2), and two equivalent O(5) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded to one W(1), two equivalent W(2), and one Ag(1) atom to form OAgW3 tetrahedra that share corners with two equivalent O(3)Er2AgW tetrahedra and  an edgeedge with one O(1)AgW3 tetrahedra. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Er(1), one W(1), and one Ag(1) atom. In the third O site, O(3) is bonded to two equivalent Er(1), one W(1), and one Ag(1) atom to form distorted OEr2AgW tetrahedra that share corners with two equivalent O(1)AgW3 tetrahedra and  an edgeedge with one O(3)Er2AgW tetrahedra. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Er(1), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Er(1), one W(2), and one Ag(1) atom. is represented by the CIF file [CIF]
data_ErAg(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.378
_cell_length_b   7.378
_cell_length_c   7.279
_cell_angle_alpha   65.896
_cell_angle_beta   65.896
_cell_angle_gamma   94.607
_symmetry_Int_Tables_number   1
_cell_volume   315.290
_cell_formula_units_Z   2
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
  Er  Er0  1  0.301  0.699  0.000  1.0
  Er  Er1  1  0.699  0.301  0.000  1.0
  Ag  Ag2  1  0.681  0.681  0.478  1.0
  Ag  Ag3  1  0.319  0.319  0.522  1.0
  W  W4  1  0.787  0.787  0.972  1.0
  W  W5  1  0.213  0.213  0.028  1.0
  W  W6  1  0.836  0.164  0.500  1.0
  W  W7  1  0.164  0.836  0.500  1.0
  O  O8  1  0.022  0.022  0.659  1.0
  O  O9  1  0.978  0.978  0.341  1.0
  O  O10  1  0.960  0.700  0.089  1.0
  O  O11  1  0.300  0.040  0.911  1.0
  O  O12  1  0.040  0.300  0.911  1.0
  O  O13  1  0.700  0.960  0.089  1.0
  O  O14  1  0.447  0.447  0.860  1.0
  O  O15  1  0.553  0.553  0.140  1.0
  O  O16  1  0.355  0.104  0.240  1.0
  O  O17  1  0.896  0.645  0.760  1.0
  O  O18  1  0.645  0.896  0.760  1.0
  O  O19  1  0.104  0.355  0.240  1.0
  O  O20  1  0.688  0.217  0.348  1.0
  O  O21  1  0.783  0.312  0.652  1.0
  O  O22  1  0.312  0.783  0.652  1.0
  O  O23  1  0.217  0.688  0.348  1.0
[/CIF]
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The structure described by ErAg(WO4)2 crystallizes in the monoclinic C2/m space group. Er(1) is bonded in a 8-coordinate geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and two equivalent O(5) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form distorted edge-sharing WO6 octahedra. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(5) atoms to form distorted edge-sharing WO6 octahedra. Ag(1) is bonded in a 6-coordinate geometry to one O(1), one O(3), two equivalent O(2), and two equivalent O(5) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded to one W(1), two equivalent W(2), and one Ag(1) atom to form OAgW3 tetrahedra that share corners with two equivalent O(3)Er2AgW tetrahedra and  an edgeedge with one O(1)AgW3 tetrahedra. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Er(1), one W(1), and one Ag(1) atom. In the third O site, O(3) is bonded to two equivalent Er(1), one W(1), and one Ag(1) atom to form distorted OEr2AgW tetrahedra that share corners with two equivalent O(1)AgW3 tetrahedra and  an edgeedge with one O(3)Er2AgW tetrahedra. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to one Er(1), one W(1), and one W(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 150 degrees geometry to one Er(1), one W(2), and one Ag(1) atom. is represented by the CIF file [CIF]
data_ErAg(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.378
_cell_length_b   7.378
_cell_length_c   7.279
_cell_angle_alpha   65.896
_cell_angle_beta   65.896
_cell_angle_gamma   94.607
_symmetry_Int_Tables_number   1
_cell_volume   315.290
_cell_formula_units_Z   2
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
  Er  Er0  1  0.301  0.699  0.000  1.0
  Er  Er1  1  0.699  0.301  0.000  1.0
  Ag  Ag2  1  0.681  0.681  0.478  1.0
  Ag  Ag3  1  0.319  0.319  0.522  1.0
  W  W4  1  0.787  0.787  0.972  1.0
  W  W5  1  0.213  0.213  0.028  1.0
  W  W6  1  0.836  0.164  0.500  1.0
  W  W7  1  0.164  0.836  0.500  1.0
  O  O8  1  0.022  0.022  0.659  1.0
  O  O9  1  0.978  0.978  0.341  1.0
  O  O10  1  0.960  0.700  0.089  1.0
  O  O11  1  0.300  0.040  0.911  1.0
  O  O12  1  0.040  0.300  0.911  1.0
  O  O13  1  0.700  0.960  0.089  1.0
  O  O14  1  0.447  0.447  0.860  1.0
  O  O15  1  0.553  0.553  0.140  1.0
  O  O16  1  0.355  0.104  0.240  1.0
  O  O17  1  0.896  0.645  0.760  1.0
  O  O18  1  0.645  0.896  0.760  1.0
  O  O19  1  0.104  0.355  0.240  1.0
  O  O20  1  0.688  0.217  0.348  1.0
  O  O21  1  0.783  0.312  0.652  1.0
  O  O22  1  0.312  0.783  0.652  1.0
  O  O23  1  0.217  0.688  0.348  1.0
[/CIF]
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