The structure described by W2As3 crystallizes in the monoclinic C2/m space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a 6-coordinate geometry to one As(2), two equivalent As(1), and three equivalent As(3) atoms. In the second W site, W(2) is bonded to one As(3), two equivalent As(1), and three equivalent As(2) atoms to form distorted edge-sharing WAs6 octahedra. There are three inequivalent As sites. In the first As site, As(1) is bonded in a 5-coordinate geometry to two equivalent W(1), two equivalent W(2), and one As(1) atom. In the second As site, As(2) is bonded in a 4-coordinate geometry to one W(1) and three equivalent W(2) atoms. In the third As site, As(3) is bonded in a 5-coordinate geometry to one W(2), three equivalent W(1), and one As(3) atom. is represented by the CIF card [CIF]
data_As3W2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.329
_cell_length_b   6.868
_cell_length_c   8.152
_cell_angle_alpha   78.989
_cell_angle_beta   78.218
_cell_angle_gamma   75.973
_symmetry_Int_Tables_number   1
_cell_volume   175.049
_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
  As  As0  1  0.894  0.580  0.631  1.0
  As  As1  1  0.106  0.420  0.369  1.0
  As  As2  1  0.585  0.143  0.687  1.0
  As  As3  1  0.415  0.857  0.313  1.0
  As  As4  1  0.124  0.797  0.955  1.0
  As  As5  1  0.876  0.203  0.045  1.0
  W  W6  1  0.653  0.567  0.127  1.0
  W  W7  1  0.347  0.433  0.873  1.0
  W  W8  1  0.752  0.123  0.373  1.0
  W  W9  1  0.248  0.877  0.627  1.0
[/CIF]
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The structure described by W2As3 crystallizes in the monoclinic C2/m space group. There are two inequivalent W sites. In the first W site, W(1) is bonded in a 6-coordinate geometry to one As(2), two equivalent As(1), and three equivalent As(3) atoms. In the second W site, W(2) is bonded to one As(3), two equivalent As(1), and three equivalent As(2) atoms to form distorted edge-sharing WAs6 octahedra. There are three inequivalent As sites. In the first As site, As(1) is bonded in a 5-coordinate geometry to two equivalent W(1), two equivalent W(2), and one As(1) atom. In the second As site, As(2) is bonded in a 4-coordinate geometry to one W(1) and three equivalent W(2) atoms. In the third As site, As(3) is bonded in a 5-coordinate geometry to one W(2), three equivalent W(1), and one As(3) atom. is represented by the CIF card [CIF]
data_As3W2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.329
_cell_length_b   6.868
_cell_length_c   8.152
_cell_angle_alpha   78.989
_cell_angle_beta   78.218
_cell_angle_gamma   75.973
_symmetry_Int_Tables_number   1
_cell_volume   175.049
_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
  As  As0  1  0.894  0.580  0.631  1.0
  As  As1  1  0.106  0.420  0.369  1.0
  As  As2  1  0.585  0.143  0.687  1.0
  As  As3  1  0.415  0.857  0.313  1.0
  As  As4  1  0.124  0.797  0.955  1.0
  As  As5  1  0.876  0.203  0.045  1.0
  W  W6  1  0.653  0.567  0.127  1.0
  W  W7  1  0.347  0.433  0.873  1.0
  W  W8  1  0.752  0.123  0.373  1.0
  W  W9  1  0.248  0.877  0.627  1.0
[/CIF]
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