The compound described by Cu2Zn(SbO4)2 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(3), one O(5), one O(6), and one O(7) atom to form CuO5 trigonal bipyramids that share corners with two equivalent Sb(1)O4 tetrahedra, corners with three equivalent Sb(2)O4 tetrahedra, and edges with two equivalent Zn(1)O6 octahedra. In the second Cu site, Cu(2) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(4), one O(6), and one O(8) atom. Zn(1) is bonded to one O(1), one O(4), one O(7), one O(8), and two equivalent O(3) atoms to form distorted ZnO6 octahedra that share corners with three equivalent Sb(1)O4 tetrahedra, corners with three equivalent Sb(2)O4 tetrahedra,  an edgeedge with one Zn(1)O6 octahedra, and edges with two equivalent Cu(1)O5 trigonal bipyramids. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(1), one O(2), one O(4), and one O(7) atom to form SbO4 tetrahedra that share corners with three equivalent Zn(1)O6 octahedra and corners with two equivalent Cu(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 39-55°. In the second Sb site, Sb(2) is bonded to one O(3), one O(5), one O(6), and one O(8) atom to form SbO4 tetrahedra that share corners with three equivalent Zn(1)O6 octahedra and corners with three equivalent Cu(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 57-62°. There are eight inequivalent O sites. In the first O site, O(7) is bonded in a distorted trigonal planar geometry to one Cu(1), one Zn(1), and one Sb(1) atom. In the second O site, O(8) is bonded in a trigonal planar geometry to one Cu(2), one Zn(1), and one Sb(2) atom. In the third O site, O(1) is bonded in a trigonal planar geometry to one Cu(1), one Zn(1), and one Sb(1) atom. In the fourth O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Cu(2) and one Sb(1) atom. In the fifth O site, O(3) is bonded in a 4-coordinate geometry to one Cu(1), two equivalent Zn(1), and one Sb(2) atom. In the sixth O site, O(4) is bonded in a distorted trigonal planar geometry to one Cu(2), one Zn(1), and one Sb(1) atom. In the seventh O site, O(5) is bonded in a bent 120 degrees geometry to one Cu(1) and one Sb(2) atom. In the eighth O site, O(6) is bonded in a distorted trigonal planar geometry to one Cu(1), one Cu(2), and one Sb(2) atom. is represented by the CIF card [CIF]
data_ZnCu2(SbO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.824
_cell_length_b   6.592
_cell_length_c   12.260
_cell_angle_alpha   87.951
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   712.772
_cell_formula_units_Z   4
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
  Zn  Zn0  1  0.830  0.897  0.054  1.0
  Zn  Zn1  1  0.170  0.103  0.946  1.0
  Zn  Zn2  1  0.330  0.103  0.446  1.0
  Zn  Zn3  1  0.670  0.897  0.554  1.0
  Cu  Cu4  1  0.821  0.241  0.871  1.0
  Cu  Cu5  1  0.944  0.620  0.623  1.0
  Cu  Cu6  1  0.056  0.380  0.377  1.0
  Cu  Cu7  1  0.179  0.759  0.129  1.0
  Cu  Cu8  1  0.679  0.241  0.371  1.0
  Cu  Cu9  1  0.556  0.620  0.123  1.0
  Cu  Cu10  1  0.321  0.759  0.629  1.0
  Cu  Cu11  1  0.444  0.380  0.877  1.0
  Sb  Sb12  1  0.550  0.902  0.844  1.0
  Sb  Sb13  1  0.950  0.902  0.344  1.0
  Sb  Sb14  1  0.913  0.396  0.135  1.0
  Sb  Sb15  1  0.050  0.098  0.656  1.0
  Sb  Sb16  1  0.087  0.604  0.865  1.0
  Sb  Sb17  1  0.413  0.604  0.365  1.0
  Sb  Sb18  1  0.587  0.396  0.635  1.0
  Sb  Sb19  1  0.450  0.098  0.156  1.0
  O  O20  1  0.750  0.966  0.397  1.0
  O  O21  1  0.979  0.344  0.588  1.0
  O  O22  1  0.419  0.810  0.474  1.0
  O  O23  1  0.919  0.190  0.026  1.0
  O  O24  1  0.750  0.966  0.897  1.0
  O  O25  1  0.250  0.034  0.603  1.0
  O  O26  1  0.897  0.907  0.611  1.0
  O  O27  1  0.117  0.484  0.149  1.0
  O  O28  1  0.383  0.484  0.649  1.0
  O  O29  1  0.128  0.703  0.714  1.0
  O  O30  1  0.628  0.297  0.786  1.0
  O  O31  1  0.883  0.516  0.851  1.0
  O  O32  1  0.103  0.093  0.389  1.0
  O  O33  1  0.463  0.128  0.310  1.0
  O  O34  1  0.728  0.596  0.580  1.0
  O  O35  1  0.772  0.596  0.080  1.0
  O  O36  1  0.963  0.872  0.190  1.0
  O  O37  1  0.617  0.516  0.351  1.0
  O  O38  1  0.537  0.872  0.690  1.0
  O  O39  1  0.581  0.190  0.526  1.0
  O  O40  1  0.521  0.344  0.088  1.0
  O  O41  1  0.872  0.297  0.286  1.0
  O  O42  1  0.250  0.034  0.103  1.0
  O  O43  1  0.603  0.907  0.111  1.0
  O  O44  1  0.081  0.810  0.974  1.0
  O  O45  1  0.228  0.404  0.920  1.0
  O  O46  1  0.021  0.656  0.412  1.0
  O  O47  1  0.479  0.656  0.912  1.0
  O  O48  1  0.397  0.093  0.889  1.0
  O  O49  1  0.272  0.404  0.420  1.0
  O  O50  1  0.372  0.703  0.214  1.0
  O  O51  1  0.037  0.128  0.810  1.0
[/CIF]
.
The compound described by Cu2Zn(SbO4)2 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(3), one O(5), one O(6), and one O(7) atom to form CuO5 trigonal bipyramids that share corners with two equivalent Sb(1)O4 tetrahedra, corners with three equivalent Sb(2)O4 tetrahedra, and edges with two equivalent Zn(1)O6 octahedra. In the second Cu site, Cu(2) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(4), one O(6), and one O(8) atom. Zn(1) is bonded to one O(1), one O(4), one O(7), one O(8), and two equivalent O(3) atoms to form distorted ZnO6 octahedra that share corners with three equivalent Sb(1)O4 tetrahedra, corners with three equivalent Sb(2)O4 tetrahedra,  an edgeedge with one Zn(1)O6 octahedra, and edges with two equivalent Cu(1)O5 trigonal bipyramids. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(1), one O(2), one O(4), and one O(7) atom to form SbO4 tetrahedra that share corners with three equivalent Zn(1)O6 octahedra and corners with two equivalent Cu(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 39-55°. In the second Sb site, Sb(2) is bonded to one O(3), one O(5), one O(6), and one O(8) atom to form SbO4 tetrahedra that share corners with three equivalent Zn(1)O6 octahedra and corners with three equivalent Cu(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 57-62°. There are eight inequivalent O sites. In the first O site, O(7) is bonded in a distorted trigonal planar geometry to one Cu(1), one Zn(1), and one Sb(1) atom. In the second O site, O(8) is bonded in a trigonal planar geometry to one Cu(2), one Zn(1), and one Sb(2) atom. In the third O site, O(1) is bonded in a trigonal planar geometry to one Cu(1), one Zn(1), and one Sb(1) atom. In the fourth O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Cu(2) and one Sb(1) atom. In the fifth O site, O(3) is bonded in a 4-coordinate geometry to one Cu(1), two equivalent Zn(1), and one Sb(2) atom. In the sixth O site, O(4) is bonded in a distorted trigonal planar geometry to one Cu(2), one Zn(1), and one Sb(1) atom. In the seventh O site, O(5) is bonded in a bent 120 degrees geometry to one Cu(1) and one Sb(2) atom. In the eighth O site, O(6) is bonded in a distorted trigonal planar geometry to one Cu(1), one Cu(2), and one Sb(2) atom. is represented by the CIF card [CIF]
data_ZnCu2(SbO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.824
_cell_length_b   6.592
_cell_length_c   12.260
_cell_angle_alpha   87.951
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   712.772
_cell_formula_units_Z   4
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
  Zn  Zn0  1  0.830  0.897  0.054  1.0
  Zn  Zn1  1  0.170  0.103  0.946  1.0
  Zn  Zn2  1  0.330  0.103  0.446  1.0
  Zn  Zn3  1  0.670  0.897  0.554  1.0
  Cu  Cu4  1  0.821  0.241  0.871  1.0
  Cu  Cu5  1  0.944  0.620  0.623  1.0
  Cu  Cu6  1  0.056  0.380  0.377  1.0
  Cu  Cu7  1  0.179  0.759  0.129  1.0
  Cu  Cu8  1  0.679  0.241  0.371  1.0
  Cu  Cu9  1  0.556  0.620  0.123  1.0
  Cu  Cu10  1  0.321  0.759  0.629  1.0
  Cu  Cu11  1  0.444  0.380  0.877  1.0
  Sb  Sb12  1  0.550  0.902  0.844  1.0
  Sb  Sb13  1  0.950  0.902  0.344  1.0
  Sb  Sb14  1  0.913  0.396  0.135  1.0
  Sb  Sb15  1  0.050  0.098  0.656  1.0
  Sb  Sb16  1  0.087  0.604  0.865  1.0
  Sb  Sb17  1  0.413  0.604  0.365  1.0
  Sb  Sb18  1  0.587  0.396  0.635  1.0
  Sb  Sb19  1  0.450  0.098  0.156  1.0
  O  O20  1  0.750  0.966  0.397  1.0
  O  O21  1  0.979  0.344  0.588  1.0
  O  O22  1  0.419  0.810  0.474  1.0
  O  O23  1  0.919  0.190  0.026  1.0
  O  O24  1  0.750  0.966  0.897  1.0
  O  O25  1  0.250  0.034  0.603  1.0
  O  O26  1  0.897  0.907  0.611  1.0
  O  O27  1  0.117  0.484  0.149  1.0
  O  O28  1  0.383  0.484  0.649  1.0
  O  O29  1  0.128  0.703  0.714  1.0
  O  O30  1  0.628  0.297  0.786  1.0
  O  O31  1  0.883  0.516  0.851  1.0
  O  O32  1  0.103  0.093  0.389  1.0
  O  O33  1  0.463  0.128  0.310  1.0
  O  O34  1  0.728  0.596  0.580  1.0
  O  O35  1  0.772  0.596  0.080  1.0
  O  O36  1  0.963  0.872  0.190  1.0
  O  O37  1  0.617  0.516  0.351  1.0
  O  O38  1  0.537  0.872  0.690  1.0
  O  O39  1  0.581  0.190  0.526  1.0
  O  O40  1  0.521  0.344  0.088  1.0
  O  O41  1  0.872  0.297  0.286  1.0
  O  O42  1  0.250  0.034  0.103  1.0
  O  O43  1  0.603  0.907  0.111  1.0
  O  O44  1  0.081  0.810  0.974  1.0
  O  O45  1  0.228  0.404  0.920  1.0
  O  O46  1  0.021  0.656  0.412  1.0
  O  O47  1  0.479  0.656  0.912  1.0
  O  O48  1  0.397  0.093  0.889  1.0
  O  O49  1  0.272  0.404  0.420  1.0
  O  O50  1  0.372  0.703  0.214  1.0
  O  O51  1  0.037  0.128  0.810  1.0
[/CIF]
.