The structure described by VAsO4 crystallizes in the monoclinic P2_1/c space group. V(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form distorted VO6 octahedra that share corners with two equivalent V(1)O6 octahedra, corners with six equivalent As(1)O4 tetrahedra, and  an edgeedge with one V(1)O6 octahedra. The corner-sharing octahedral tilt angles are 64°. As(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form AsO4 tetrahedra that share corners with six equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 31-62°. 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 trigonal planar geometry to two equivalent V(1) and one As(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one V(1) and one As(1) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to two equivalent V(1) and one As(1) atom. is represented by the CIF file [CIF]
data_VAsO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.156
_cell_length_b   6.518
_cell_length_c   7.894
_cell_angle_alpha   113.576
_cell_angle_beta   89.975
_cell_angle_gamma   89.990
_symmetry_Int_Tables_number   1
_cell_volume   290.299
_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  0.619  0.082  0.210  1.0
  V  V1  1  0.381  0.918  0.790  1.0
  V  V2  1  0.119  0.417  0.290  1.0
  V  V3  1  0.881  0.583  0.710  1.0
  As  As4  1  0.111  0.850  0.146  1.0
  As  As5  1  0.611  0.650  0.354  1.0
  As  As6  1  0.389  0.350  0.646  1.0
  As  As7  1  0.889  0.150  0.854  1.0
  O  O8  1  0.022  0.654  0.941  1.0
  O  O9  1  0.522  0.846  0.559  1.0
  O  O10  1  0.478  0.154  0.441  1.0
  O  O11  1  0.978  0.346  0.059  1.0
  O  O12  1  0.331  0.965  0.070  1.0
  O  O13  1  0.832  0.536  0.430  1.0
  O  O14  1  0.168  0.464  0.570  1.0
  O  O15  1  0.669  0.035  0.930  1.0
  O  O16  1  0.679  0.764  0.202  1.0
  O  O17  1  0.179  0.736  0.298  1.0
  O  O18  1  0.821  0.264  0.702  1.0
  O  O19  1  0.321  0.236  0.798  1.0
  O  O20  1  0.459  0.404  0.250  1.0
  O  O21  1  0.959  0.096  0.251  1.0
  O  O22  1  0.041  0.904  0.749  1.0
  O  O23  1  0.541  0.596  0.750  1.0
[/CIF]
.
The structure described by VAsO4 crystallizes in the monoclinic P2_1/c space group. V(1) is bonded to one O(1), one O(3), two equivalent O(2), and two equivalent O(4) atoms to form distorted VO6 octahedra that share corners with two equivalent V(1)O6 octahedra, corners with six equivalent As(1)O4 tetrahedra, and  an edgeedge with one V(1)O6 octahedra. The corner-sharing octahedral tilt angles are 64°. As(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form AsO4 tetrahedra that share corners with six equivalent V(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 31-62°. 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 trigonal planar geometry to two equivalent V(1) and one As(1) atom. In the third O site, O(3) is bonded in a bent 120 degrees geometry to one V(1) and one As(1) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to two equivalent V(1) and one As(1) atom. is represented by the CIF file [CIF]
data_VAsO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.156
_cell_length_b   6.518
_cell_length_c   7.894
_cell_angle_alpha   113.576
_cell_angle_beta   89.975
_cell_angle_gamma   89.990
_symmetry_Int_Tables_number   1
_cell_volume   290.299
_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  0.619  0.082  0.210  1.0
  V  V1  1  0.381  0.918  0.790  1.0
  V  V2  1  0.119  0.417  0.290  1.0
  V  V3  1  0.881  0.583  0.710  1.0
  As  As4  1  0.111  0.850  0.146  1.0
  As  As5  1  0.611  0.650  0.354  1.0
  As  As6  1  0.389  0.350  0.646  1.0
  As  As7  1  0.889  0.150  0.854  1.0
  O  O8  1  0.022  0.654  0.941  1.0
  O  O9  1  0.522  0.846  0.559  1.0
  O  O10  1  0.478  0.154  0.441  1.0
  O  O11  1  0.978  0.346  0.059  1.0
  O  O12  1  0.331  0.965  0.070  1.0
  O  O13  1  0.832  0.536  0.430  1.0
  O  O14  1  0.168  0.464  0.570  1.0
  O  O15  1  0.669  0.035  0.930  1.0
  O  O16  1  0.679  0.764  0.202  1.0
  O  O17  1  0.179  0.736  0.298  1.0
  O  O18  1  0.821  0.264  0.702  1.0
  O  O19  1  0.321  0.236  0.798  1.0
  O  O20  1  0.459  0.404  0.250  1.0
  O  O21  1  0.959  0.096  0.251  1.0
  O  O22  1  0.041  0.904  0.749  1.0
  O  O23  1  0.541  0.596  0.750  1.0
[/CIF]
.