The material described by MgHo2Ag2(WO4)4 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to two equivalent O(4) and four equivalent O(3) atoms to form distorted MgO6 octahedra that share corners with four equivalent W(2)O6 octahedra and faces with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles are 54°. Ho(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(4), one O(5), two equivalent O(1), and two equivalent O(3) atoms to form distorted WO6 octahedra that share edges with two equivalent W(2)O6 octahedra and  a faceface with one Mg(1)O6 octahedra. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form distorted WO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra,  an edgeedge with one W(2)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles are 54°. Ag(1) is bonded in a 3-coordinate geometry to one O(4), one O(5), and two equivalent O(3) atoms. There are five inequivalent O sites. In the first O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Ho(1), one W(1), and one Ag(1) atom. In the second O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Ho(1), one W(1), and one W(2) atom. In the third O site, O(2) is bonded in a bent 150 degrees geometry to one Ho(1) and one W(2) atom. In the fourth O site, O(3) is bonded to one Mg(1), one Ho(1), one W(1), and one Ag(1) atom to form a mixture of distorted edge, corner, and face-sharing OHoMgAgW trigonal pyramids. In the fifth O site, O(4) is bonded in a 5-coordinate geometry to one Mg(1), one W(1), two equivalent W(2), and one Ag(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ho2MgAg2(WO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.342
_cell_length_b   7.643
_cell_length_c   7.643
_cell_angle_alpha   92.656
_cell_angle_beta   115.720
_cell_angle_gamma   115.720
_symmetry_Int_Tables_number   1
_cell_volume   333.258
_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
  Ho  Ho0  1  0.000  0.715  0.285  1.0
  Ho  Ho1  1  0.000  0.285  0.715  1.0
  Mg  Mg2  1  0.000  0.000  0.000  1.0
  Ag  Ag3  1  0.534  0.680  0.680  1.0
  Ag  Ag4  1  0.466  0.320  0.320  1.0
  W  W5  1  0.977  0.247  0.247  1.0
  W  W6  1  0.023  0.753  0.753  1.0
  W  W7  1  0.500  0.841  0.159  1.0
  W  W8  1  0.500  0.159  0.841  1.0
  O  O9  1  0.760  0.364  0.102  1.0
  O  O10  1  0.240  0.636  0.898  1.0
  O  O11  1  0.240  0.898  0.636  1.0
  O  O12  1  0.760  0.102  0.364  1.0
  O  O13  1  0.658  0.703  0.219  1.0
  O  O14  1  0.342  0.297  0.781  1.0
  O  O15  1  0.342  0.781  0.297  1.0
  O  O16  1  0.658  0.219  0.703  1.0
  O  O17  1  0.906  0.709  0.950  1.0
  O  O18  1  0.094  0.291  0.050  1.0
  O  O19  1  0.094  0.050  0.291  1.0
  O  O20  1  0.906  0.950  0.709  1.0
  O  O21  1  0.670  0.994  0.994  1.0
  O  O22  1  0.330  0.006  0.006  1.0
  O  O23  1  0.844  0.529  0.529  1.0
  O  O24  1  0.156  0.471  0.471  1.0
[/CIF]
.
The material described by MgHo2Ag2(WO4)4 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded to two equivalent O(4) and four equivalent O(3) atoms to form distorted MgO6 octahedra that share corners with four equivalent W(2)O6 octahedra and faces with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles are 54°. Ho(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(4), one O(5), two equivalent O(1), and two equivalent O(3) atoms to form distorted WO6 octahedra that share edges with two equivalent W(2)O6 octahedra and  a faceface with one Mg(1)O6 octahedra. In the second W site, W(2) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms to form distorted WO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra,  an edgeedge with one W(2)O6 octahedra, and edges with two equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles are 54°. Ag(1) is bonded in a 3-coordinate geometry to one O(4), one O(5), and two equivalent O(3) atoms. There are five inequivalent O sites. In the first O site, O(5) is bonded in a 4-coordinate geometry to two equivalent Ho(1), one W(1), and one Ag(1) atom. In the second O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Ho(1), one W(1), and one W(2) atom. In the third O site, O(2) is bonded in a bent 150 degrees geometry to one Ho(1) and one W(2) atom. In the fourth O site, O(3) is bonded to one Mg(1), one Ho(1), one W(1), and one Ag(1) atom to form a mixture of distorted edge, corner, and face-sharing OHoMgAgW trigonal pyramids. In the fifth O site, O(4) is bonded in a 5-coordinate geometry to one Mg(1), one W(1), two equivalent W(2), and one Ag(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ho2MgAg2(WO4)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.342
_cell_length_b   7.643
_cell_length_c   7.643
_cell_angle_alpha   92.656
_cell_angle_beta   115.720
_cell_angle_gamma   115.720
_symmetry_Int_Tables_number   1
_cell_volume   333.258
_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
  Ho  Ho0  1  0.000  0.715  0.285  1.0
  Ho  Ho1  1  0.000  0.285  0.715  1.0
  Mg  Mg2  1  0.000  0.000  0.000  1.0
  Ag  Ag3  1  0.534  0.680  0.680  1.0
  Ag  Ag4  1  0.466  0.320  0.320  1.0
  W  W5  1  0.977  0.247  0.247  1.0
  W  W6  1  0.023  0.753  0.753  1.0
  W  W7  1  0.500  0.841  0.159  1.0
  W  W8  1  0.500  0.159  0.841  1.0
  O  O9  1  0.760  0.364  0.102  1.0
  O  O10  1  0.240  0.636  0.898  1.0
  O  O11  1  0.240  0.898  0.636  1.0
  O  O12  1  0.760  0.102  0.364  1.0
  O  O13  1  0.658  0.703  0.219  1.0
  O  O14  1  0.342  0.297  0.781  1.0
  O  O15  1  0.342  0.781  0.297  1.0
  O  O16  1  0.658  0.219  0.703  1.0
  O  O17  1  0.906  0.709  0.950  1.0
  O  O18  1  0.094  0.291  0.050  1.0
  O  O19  1  0.094  0.050  0.291  1.0
  O  O20  1  0.906  0.950  0.709  1.0
  O  O21  1  0.670  0.994  0.994  1.0
  O  O22  1  0.330  0.006  0.006  1.0
  O  O23  1  0.844  0.529  0.529  1.0
  O  O24  1  0.156  0.471  0.471  1.0
[/CIF]
.