The compound described by VOAsO4 crystallizes in the orthorhombic Pnma space group. V(1) is bonded in a 6-coordinate geometry to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms. As(1) is bonded in a tetrahedral geometry to one O(1), one O(4), and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one V(1) and one As(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent V(1) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one V(1) and one As(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one V(1) and one As(1) atom. is represented by the CIF card [CIF]
data_VAsO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.368
_cell_length_b   7.345
_cell_length_c   7.696
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   359.983
_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
  V  V0  1  0.250  0.739  0.168  1.0
  V  V1  1  0.750  0.239  0.332  1.0
  V  V2  1  0.250  0.761  0.668  1.0
  V  V3  1  0.750  0.261  0.832  1.0
  As  As4  1  0.750  0.620  0.120  1.0
  As  As5  1  0.250  0.120  0.380  1.0
  As  As6  1  0.750  0.880  0.620  1.0
  As  As7  1  0.250  0.380  0.880  1.0
  O  O8  1  0.250  0.502  0.066  1.0
  O  O9  1  0.750  0.176  0.133  1.0
  O  O10  1  0.540  0.760  0.120  1.0
  O  O11  1  0.960  0.760  0.120  1.0
  O  O12  1  0.250  0.990  0.196  1.0
  O  O13  1  0.750  0.490  0.304  1.0
  O  O14  1  0.040  0.260  0.380  1.0
  O  O15  1  0.460  0.260  0.380  1.0
  O  O16  1  0.250  0.676  0.367  1.0
  O  O17  1  0.750  0.002  0.434  1.0
  O  O18  1  0.250  0.998  0.566  1.0
  O  O19  1  0.750  0.324  0.633  1.0
  O  O20  1  0.540  0.740  0.620  1.0
  O  O21  1  0.960  0.740  0.620  1.0
  O  O22  1  0.250  0.510  0.696  1.0
  O  O23  1  0.750  0.010  0.804  1.0
  O  O24  1  0.040  0.240  0.880  1.0
  O  O25  1  0.460  0.240  0.880  1.0
  O  O26  1  0.250  0.824  0.867  1.0
  O  O27  1  0.750  0.498  0.934  1.0
[/CIF]
.
The compound described by VOAsO4 crystallizes in the orthorhombic Pnma space group. V(1) is bonded in a 6-coordinate geometry to one O(1), one O(4), two equivalent O(2), and two equivalent O(3) atoms. As(1) is bonded in a tetrahedral geometry to one O(1), one O(4), and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one V(1) and one As(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent V(1) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one V(1) and one As(1) atom. In the fourth O site, O(4) is bonded in a bent 120 degrees geometry to one V(1) and one As(1) atom. is represented by the CIF card [CIF]
data_VAsO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.368
_cell_length_b   7.345
_cell_length_c   7.696
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   359.983
_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
  V  V0  1  0.250  0.739  0.168  1.0
  V  V1  1  0.750  0.239  0.332  1.0
  V  V2  1  0.250  0.761  0.668  1.0
  V  V3  1  0.750  0.261  0.832  1.0
  As  As4  1  0.750  0.620  0.120  1.0
  As  As5  1  0.250  0.120  0.380  1.0
  As  As6  1  0.750  0.880  0.620  1.0
  As  As7  1  0.250  0.380  0.880  1.0
  O  O8  1  0.250  0.502  0.066  1.0
  O  O9  1  0.750  0.176  0.133  1.0
  O  O10  1  0.540  0.760  0.120  1.0
  O  O11  1  0.960  0.760  0.120  1.0
  O  O12  1  0.250  0.990  0.196  1.0
  O  O13  1  0.750  0.490  0.304  1.0
  O  O14  1  0.040  0.260  0.380  1.0
  O  O15  1  0.460  0.260  0.380  1.0
  O  O16  1  0.250  0.676  0.367  1.0
  O  O17  1  0.750  0.002  0.434  1.0
  O  O18  1  0.250  0.998  0.566  1.0
  O  O19  1  0.750  0.324  0.633  1.0
  O  O20  1  0.540  0.740  0.620  1.0
  O  O21  1  0.960  0.740  0.620  1.0
  O  O22  1  0.250  0.510  0.696  1.0
  O  O23  1  0.750  0.010  0.804  1.0
  O  O24  1  0.040  0.240  0.880  1.0
  O  O25  1  0.460  0.240  0.880  1.0
  O  O26  1  0.250  0.824  0.867  1.0
  O  O27  1  0.750  0.498  0.934  1.0
[/CIF]
.