The structure described by W2ZnO7 crystallizes in the monoclinic P2_1 space group. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(2), one O(4), one O(6), and one O(7) atom to form WO4 tetrahedra that share  a cornercorner with one W(2)O4 tetrahedra and corners with two equivalent Zn(1)O4 tetrahedra. In the second W site, W(2) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form WO4 tetrahedra that share  a cornercorner with one W(1)O4 tetrahedra and corners with two equivalent Zn(1)O4 tetrahedra. Zn(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form ZnO4 tetrahedra that share corners with two equivalent W(1)O4 tetrahedra and corners with two equivalent W(2)O4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one W(2) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one W(1) and one Zn(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one W(2) and one Zn(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one W(1) and one Zn(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one W(2) and one Zn(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one W(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one W(1) atom. is represented by the CIF file [CIF]
data_ZnW2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.109
_cell_length_b   6.301
_cell_length_c   8.226
_cell_angle_alpha   73.710
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   353.678
_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
  Zn  Zn0  1  0.161  0.114  0.347  1.0
  Zn  Zn1  1  0.661  0.886  0.653  1.0
  W  W2  1  0.147  0.900  0.787  1.0
  W  W3  1  0.647  0.100  0.213  1.0
  W  W4  1  0.680  0.353  0.778  1.0
  W  W5  1  0.180  0.647  0.222  1.0
  O  O6  1  0.363  0.594  0.367  1.0
  O  O7  1  0.863  0.406  0.633  1.0
  O  O8  1  0.749  0.037  0.425  1.0
  O  O9  1  0.249  0.963  0.575  1.0
  O  O10  1  0.031  0.402  0.273  1.0
  O  O11  1  0.531  0.598  0.727  1.0
  O  O12  1  0.412  0.202  0.228  1.0
  O  O13  1  0.912  0.798  0.772  1.0
  O  O14  1  0.055  0.891  0.242  1.0
  O  O15  1  0.555  0.109  0.758  1.0
  O  O16  1  0.260  0.704  0.989  1.0
  O  O17  1  0.760  0.296  0.011  1.0
  O  O18  1  0.118  0.147  0.838  1.0
  O  O19  1  0.618  0.853  0.162  1.0
[/CIF]
.
The structure described by W2ZnO7 crystallizes in the monoclinic P2_1 space group. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(2), one O(4), one O(6), and one O(7) atom to form WO4 tetrahedra that share  a cornercorner with one W(2)O4 tetrahedra and corners with two equivalent Zn(1)O4 tetrahedra. In the second W site, W(2) is bonded to one O(1), one O(3), one O(5), and one O(6) atom to form WO4 tetrahedra that share  a cornercorner with one W(1)O4 tetrahedra and corners with two equivalent Zn(1)O4 tetrahedra. Zn(1) is bonded to one O(2), one O(3), one O(4), and one O(5) atom to form ZnO4 tetrahedra that share corners with two equivalent W(1)O4 tetrahedra and corners with two equivalent W(2)O4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a single-bond geometry to one W(2) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one W(1) and one Zn(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one W(2) and one Zn(1) atom. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to one W(1) and one Zn(1) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one W(2) and one Zn(1) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one W(1) and one W(2) atom. In the seventh O site, O(7) is bonded in a single-bond geometry to one W(1) atom. is represented by the CIF file [CIF]
data_ZnW2O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.109
_cell_length_b   6.301
_cell_length_c   8.226
_cell_angle_alpha   73.710
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   353.678
_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
  Zn  Zn0  1  0.161  0.114  0.347  1.0
  Zn  Zn1  1  0.661  0.886  0.653  1.0
  W  W2  1  0.147  0.900  0.787  1.0
  W  W3  1  0.647  0.100  0.213  1.0
  W  W4  1  0.680  0.353  0.778  1.0
  W  W5  1  0.180  0.647  0.222  1.0
  O  O6  1  0.363  0.594  0.367  1.0
  O  O7  1  0.863  0.406  0.633  1.0
  O  O8  1  0.749  0.037  0.425  1.0
  O  O9  1  0.249  0.963  0.575  1.0
  O  O10  1  0.031  0.402  0.273  1.0
  O  O11  1  0.531  0.598  0.727  1.0
  O  O12  1  0.412  0.202  0.228  1.0
  O  O13  1  0.912  0.798  0.772  1.0
  O  O14  1  0.055  0.891  0.242  1.0
  O  O15  1  0.555  0.109  0.758  1.0
  O  O16  1  0.260  0.704  0.989  1.0
  O  O17  1  0.760  0.296  0.011  1.0
  O  O18  1  0.118  0.147  0.838  1.0
  O  O19  1  0.618  0.853  0.162  1.0
[/CIF]
.