The material structure described by WAs2O7 crystallizes in the monoclinic P2_1/c space group. W(1) is bonded to one O(1), one O(2), one O(5), one O(6), and one O(7) atom to form distorted WO5 trigonal bipyramids that share corners with two equivalent As(1)O4 tetrahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded to one O(2), one O(3), one O(4), and one O(6) atom to form AsO4 tetrahedra that share corners with two equivalent W(1)O5 trigonal bipyramids. In the second As site, As(2) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(3), one O(4), and one O(5) atom. There are seven inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to one W(1) and one As(1) atom. In the second O site, O(7) is bonded in a single-bond geometry to one W(1) atom. In the third O site, O(1) is bonded in a bent 150 degrees geometry to one W(1) and one As(2) atom. In the fourth O site, O(2) is bonded in a bent 120 degrees geometry to one W(1) and one As(1) atom. In the fifth O site, O(3) is bonded in a bent 120 degrees geometry to one As(1) and one As(2) atom. In the sixth O site, O(4) is bonded in a bent 120 degrees geometry to one As(1) and one As(2) atom. In the seventh O site, O(5) is bonded in a bent 150 degrees geometry to one W(1) and one As(2) atom. is represented by the CIF card [CIF]
data_As2WO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.537
_cell_length_b   7.408
_cell_length_c   10.109
_cell_angle_alpha   85.606
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   712.094
_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
  As  As0  1  0.772  0.597  0.767  1.0
  As  As1  1  0.272  0.403  0.733  1.0
  As  As2  1  0.228  0.403  0.233  1.0
  As  As3  1  0.728  0.597  0.267  1.0
  As  As4  1  0.759  0.874  0.006  1.0
  As  As5  1  0.259  0.126  0.494  1.0
  As  As6  1  0.241  0.126  0.994  1.0
  As  As7  1  0.741  0.874  0.506  1.0
  W  W8  1  0.957  0.196  0.696  1.0
  W  W9  1  0.457  0.804  0.804  1.0
  W  W10  1  0.043  0.804  0.304  1.0
  W  W11  1  0.543  0.196  0.196  1.0
  O  O12  1  0.659  0.118  0.071  1.0
  O  O13  1  0.159  0.882  0.429  1.0
  O  O14  1  0.341  0.882  0.929  1.0
  O  O15  1  0.841  0.118  0.571  1.0
  O  O16  1  0.592  0.601  0.752  1.0
  O  O17  1  0.092  0.399  0.748  1.0
  O  O18  1  0.408  0.399  0.248  1.0
  O  O19  1  0.908  0.601  0.252  1.0
  O  O20  1  0.828  0.646  0.921  1.0
  O  O21  1  0.328  0.354  0.579  1.0
  O  O22  1  0.172  0.354  0.079  1.0
  O  O23  1  0.672  0.646  0.421  1.0
  O  O24  1  0.848  0.733  0.637  1.0
  O  O25  1  0.348  0.267  0.863  1.0
  O  O26  1  0.152  0.267  0.363  1.0
  O  O27  1  0.652  0.733  0.137  1.0
  O  O28  1  0.876  0.895  0.384  1.0
  O  O29  1  0.376  0.105  0.116  1.0
  O  O30  1  0.124  0.105  0.616  1.0
  O  O31  1  0.624  0.895  0.884  1.0
  O  O32  1  0.682  0.378  0.241  1.0
  O  O33  1  0.182  0.622  0.259  1.0
  O  O34  1  0.318  0.622  0.759  1.0
  O  O35  1  0.818  0.378  0.741  1.0
  O  O36  1  0.557  0.038  0.332  1.0
  O  O37  1  0.057  0.962  0.168  1.0
  O  O38  1  0.443  0.962  0.668  1.0
  O  O39  1  0.943  0.038  0.832  1.0
[/CIF]
.
The material structure described by WAs2O7 crystallizes in the monoclinic P2_1/c space group. W(1) is bonded to one O(1), one O(2), one O(5), one O(6), and one O(7) atom to form distorted WO5 trigonal bipyramids that share corners with two equivalent As(1)O4 tetrahedra. There are two inequivalent As sites. In the first As site, As(1) is bonded to one O(2), one O(3), one O(4), and one O(6) atom to form AsO4 tetrahedra that share corners with two equivalent W(1)O5 trigonal bipyramids. In the second As site, As(2) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(3), one O(4), and one O(5) atom. There are seven inequivalent O sites. In the first O site, O(6) is bonded in a bent 150 degrees geometry to one W(1) and one As(1) atom. In the second O site, O(7) is bonded in a single-bond geometry to one W(1) atom. In the third O site, O(1) is bonded in a bent 150 degrees geometry to one W(1) and one As(2) atom. In the fourth O site, O(2) is bonded in a bent 120 degrees geometry to one W(1) and one As(1) atom. In the fifth O site, O(3) is bonded in a bent 120 degrees geometry to one As(1) and one As(2) atom. In the sixth O site, O(4) is bonded in a bent 120 degrees geometry to one As(1) and one As(2) atom. In the seventh O site, O(5) is bonded in a bent 150 degrees geometry to one W(1) and one As(2) atom. is represented by the CIF card [CIF]
data_As2WO7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.537
_cell_length_b   7.408
_cell_length_c   10.109
_cell_angle_alpha   85.606
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   712.094
_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
  As  As0  1  0.772  0.597  0.767  1.0
  As  As1  1  0.272  0.403  0.733  1.0
  As  As2  1  0.228  0.403  0.233  1.0
  As  As3  1  0.728  0.597  0.267  1.0
  As  As4  1  0.759  0.874  0.006  1.0
  As  As5  1  0.259  0.126  0.494  1.0
  As  As6  1  0.241  0.126  0.994  1.0
  As  As7  1  0.741  0.874  0.506  1.0
  W  W8  1  0.957  0.196  0.696  1.0
  W  W9  1  0.457  0.804  0.804  1.0
  W  W10  1  0.043  0.804  0.304  1.0
  W  W11  1  0.543  0.196  0.196  1.0
  O  O12  1  0.659  0.118  0.071  1.0
  O  O13  1  0.159  0.882  0.429  1.0
  O  O14  1  0.341  0.882  0.929  1.0
  O  O15  1  0.841  0.118  0.571  1.0
  O  O16  1  0.592  0.601  0.752  1.0
  O  O17  1  0.092  0.399  0.748  1.0
  O  O18  1  0.408  0.399  0.248  1.0
  O  O19  1  0.908  0.601  0.252  1.0
  O  O20  1  0.828  0.646  0.921  1.0
  O  O21  1  0.328  0.354  0.579  1.0
  O  O22  1  0.172  0.354  0.079  1.0
  O  O23  1  0.672  0.646  0.421  1.0
  O  O24  1  0.848  0.733  0.637  1.0
  O  O25  1  0.348  0.267  0.863  1.0
  O  O26  1  0.152  0.267  0.363  1.0
  O  O27  1  0.652  0.733  0.137  1.0
  O  O28  1  0.876  0.895  0.384  1.0
  O  O29  1  0.376  0.105  0.116  1.0
  O  O30  1  0.124  0.105  0.616  1.0
  O  O31  1  0.624  0.895  0.884  1.0
  O  O32  1  0.682  0.378  0.241  1.0
  O  O33  1  0.182  0.622  0.259  1.0
  O  O34  1  0.318  0.622  0.759  1.0
  O  O35  1  0.818  0.378  0.741  1.0
  O  O36  1  0.557  0.038  0.332  1.0
  O  O37  1  0.057  0.962  0.168  1.0
  O  O38  1  0.443  0.962  0.668  1.0
  O  O39  1  0.943  0.038  0.832  1.0
[/CIF]
.