The material described by V4As3 crystallizes in the orthorhombic Cmcm space group. There are five inequivalent V sites. In the first V site, V(1) is bonded in a distorted square co-planar geometry to two equivalent As(3) and two equivalent As(4) atoms. In the second V site, V(2) is bonded to two equivalent As(1), two equivalent As(2), and two equivalent As(3) atoms to form VAs6 octahedra that share corners with eight equivalent V(3)As6 octahedra, corners with four equivalent V(5)As5 trigonal bipyramids, edges with two equivalent V(2)As6 octahedra, edges with four equivalent V(4)As5 square pyramids, and faces with two equivalent V(3)As6 octahedra. The corner-sharing octahedral tilt angles range from 42-53°. In the third V site, V(3) is bonded to one As(1), one As(3), two equivalent As(2), and two equivalent As(4) atoms to form distorted VAs6 octahedra that share corners with two equivalent V(3)As6 octahedra, corners with four equivalent V(2)As6 octahedra, corners with five equivalent V(4)As5 square pyramids, corners with two equivalent V(5)As5 trigonal bipyramids, edges with two equivalent V(3)As6 octahedra, edges with three equivalent V(5)As5 trigonal bipyramids,  a faceface with one V(2)As6 octahedra,  a faceface with one V(3)As6 octahedra, and  a faceface with one V(4)As5 square pyramid. The corner-sharing octahedral tilt angles range from 42-53°. In the fourth V site, V(4) is bonded to one As(1), two equivalent As(3), and two equivalent As(4) atoms to form distorted VAs5 square pyramids that share corners with five equivalent V(3)As6 octahedra,  a cornercorner with one V(4)As5 square pyramid, corners with six equivalent V(5)As5 trigonal bipyramids, edges with two equivalent V(2)As6 octahedra, edges with two equivalent V(4)As5 square pyramids, edges with two equivalent V(5)As5 trigonal bipyramids, and  a faceface with one V(3)As6 octahedra. The corner-sharing octahedral tilt angles range from 38-57°. In the fifth V site, V(5) is bonded to two equivalent As(3) and three equivalent As(4) atoms to form distorted VAs5 trigonal bipyramids that share corners with two equivalent V(2)As6 octahedra, corners with two equivalent V(3)As6 octahedra, corners with six equivalent V(4)As5 square pyramids, edges with three equivalent V(3)As6 octahedra, edges with two equivalent V(4)As5 square pyramids, and edges with four equivalent V(5)As5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 25-45°. There are four inequivalent As sites. In the first As site, As(1) is bonded to two equivalent V(2), two equivalent V(3), and two equivalent V(4) atoms to form a mixture of distorted edge and corner-sharing AsV6 pentagonal pyramids. In the second As site, As(2) is bonded to two equivalent V(2) and four equivalent V(3) atoms to form a mixture of distorted edge, face, and corner-sharing AsV6 pentagonal pyramids. In the third As site, As(3) is bonded in a 7-coordinate geometry to one V(1), one V(2), one V(3), two equivalent V(4), and two equivalent V(5) atoms. In the fourth As site, As(4) is bonded in a 8-coordinate geometry to one V(1), two equivalent V(3), two equivalent V(4), and three equivalent V(5) atoms. is represented by the CIF card [CIF]
data_V4As3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.055
_cell_length_b   7.055
_cell_length_c   18.020
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   152.160
_symmetry_Int_Tables_number   1
_cell_volume   418.823
_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  0.000  0.000  0.000  1.0
  V  V1  1  0.000  0.000  0.500  1.0
  V  V2  1  0.058  0.942  0.750  1.0
  V  V3  1  0.942  0.058  0.250  1.0
  V  V4  1  0.733  0.267  0.163  1.0
  V  V5  1  0.267  0.733  0.837  1.0
  V  V6  1  0.267  0.733  0.663  1.0
  V  V7  1  0.733  0.267  0.337  1.0
  V  V8  1  0.535  0.465  0.117  1.0
  V  V9  1  0.465  0.535  0.883  1.0
  V  V10  1  0.465  0.535  0.617  1.0
  V  V11  1  0.535  0.465  0.383  1.0
  V  V12  1  0.664  0.336  0.972  1.0
  V  V13  1  0.336  0.664  0.028  1.0
  V  V14  1  0.336  0.664  0.472  1.0
  V  V15  1  0.664  0.336  0.528  1.0
  As  As16  1  0.419  0.581  0.750  1.0
  As  As17  1  0.581  0.419  0.250  1.0
  As  As18  1  0.697  0.303  0.750  1.0
  As  As19  1  0.303  0.697  0.250  1.0
  As  As20  1  0.902  0.098  0.118  1.0
  As  As21  1  0.098  0.902  0.882  1.0
  As  As22  1  0.098  0.902  0.618  1.0
  As  As23  1  0.902  0.098  0.382  1.0
  As  As24  1  0.840  0.160  0.924  1.0
  As  As25  1  0.160  0.840  0.076  1.0
  As  As26  1  0.160  0.840  0.424  1.0
  As  As27  1  0.840  0.160  0.576  1.0
[/CIF]
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The material described by V4As3 crystallizes in the orthorhombic Cmcm space group. There are five inequivalent V sites. In the first V site, V(1) is bonded in a distorted square co-planar geometry to two equivalent As(3) and two equivalent As(4) atoms. In the second V site, V(2) is bonded to two equivalent As(1), two equivalent As(2), and two equivalent As(3) atoms to form VAs6 octahedra that share corners with eight equivalent V(3)As6 octahedra, corners with four equivalent V(5)As5 trigonal bipyramids, edges with two equivalent V(2)As6 octahedra, edges with four equivalent V(4)As5 square pyramids, and faces with two equivalent V(3)As6 octahedra. The corner-sharing octahedral tilt angles range from 42-53°. In the third V site, V(3) is bonded to one As(1), one As(3), two equivalent As(2), and two equivalent As(4) atoms to form distorted VAs6 octahedra that share corners with two equivalent V(3)As6 octahedra, corners with four equivalent V(2)As6 octahedra, corners with five equivalent V(4)As5 square pyramids, corners with two equivalent V(5)As5 trigonal bipyramids, edges with two equivalent V(3)As6 octahedra, edges with three equivalent V(5)As5 trigonal bipyramids,  a faceface with one V(2)As6 octahedra,  a faceface with one V(3)As6 octahedra, and  a faceface with one V(4)As5 square pyramid. The corner-sharing octahedral tilt angles range from 42-53°. In the fourth V site, V(4) is bonded to one As(1), two equivalent As(3), and two equivalent As(4) atoms to form distorted VAs5 square pyramids that share corners with five equivalent V(3)As6 octahedra,  a cornercorner with one V(4)As5 square pyramid, corners with six equivalent V(5)As5 trigonal bipyramids, edges with two equivalent V(2)As6 octahedra, edges with two equivalent V(4)As5 square pyramids, edges with two equivalent V(5)As5 trigonal bipyramids, and  a faceface with one V(3)As6 octahedra. The corner-sharing octahedral tilt angles range from 38-57°. In the fifth V site, V(5) is bonded to two equivalent As(3) and three equivalent As(4) atoms to form distorted VAs5 trigonal bipyramids that share corners with two equivalent V(2)As6 octahedra, corners with two equivalent V(3)As6 octahedra, corners with six equivalent V(4)As5 square pyramids, edges with three equivalent V(3)As6 octahedra, edges with two equivalent V(4)As5 square pyramids, and edges with four equivalent V(5)As5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 25-45°. There are four inequivalent As sites. In the first As site, As(1) is bonded to two equivalent V(2), two equivalent V(3), and two equivalent V(4) atoms to form a mixture of distorted edge and corner-sharing AsV6 pentagonal pyramids. In the second As site, As(2) is bonded to two equivalent V(2) and four equivalent V(3) atoms to form a mixture of distorted edge, face, and corner-sharing AsV6 pentagonal pyramids. In the third As site, As(3) is bonded in a 7-coordinate geometry to one V(1), one V(2), one V(3), two equivalent V(4), and two equivalent V(5) atoms. In the fourth As site, As(4) is bonded in a 8-coordinate geometry to one V(1), two equivalent V(3), two equivalent V(4), and three equivalent V(5) atoms. is represented by the CIF card [CIF]
data_V4As3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.055
_cell_length_b   7.055
_cell_length_c   18.020
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   152.160
_symmetry_Int_Tables_number   1
_cell_volume   418.823
_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  0.000  0.000  0.000  1.0
  V  V1  1  0.000  0.000  0.500  1.0
  V  V2  1  0.058  0.942  0.750  1.0
  V  V3  1  0.942  0.058  0.250  1.0
  V  V4  1  0.733  0.267  0.163  1.0
  V  V5  1  0.267  0.733  0.837  1.0
  V  V6  1  0.267  0.733  0.663  1.0
  V  V7  1  0.733  0.267  0.337  1.0
  V  V8  1  0.535  0.465  0.117  1.0
  V  V9  1  0.465  0.535  0.883  1.0
  V  V10  1  0.465  0.535  0.617  1.0
  V  V11  1  0.535  0.465  0.383  1.0
  V  V12  1  0.664  0.336  0.972  1.0
  V  V13  1  0.336  0.664  0.028  1.0
  V  V14  1  0.336  0.664  0.472  1.0
  V  V15  1  0.664  0.336  0.528  1.0
  As  As16  1  0.419  0.581  0.750  1.0
  As  As17  1  0.581  0.419  0.250  1.0
  As  As18  1  0.697  0.303  0.750  1.0
  As  As19  1  0.303  0.697  0.250  1.0
  As  As20  1  0.902  0.098  0.118  1.0
  As  As21  1  0.098  0.902  0.882  1.0
  As  As22  1  0.098  0.902  0.618  1.0
  As  As23  1  0.902  0.098  0.382  1.0
  As  As24  1  0.840  0.160  0.924  1.0
  As  As25  1  0.160  0.840  0.076  1.0
  As  As26  1  0.160  0.840  0.424  1.0
  As  As27  1  0.840  0.160  0.576  1.0
[/CIF]
.