The material described by VCo3AsO8 crystallizes in the monoclinic C2/m space group. V(1) is bonded to one O(2), one O(3), and two equivalent O(6) atoms to form VO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra, corners with two equivalent Co(2)O6 octahedra, and corners with six equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-56°. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent O(3) and four equivalent O(5) atoms to form CoO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with four equivalent As(1)O4 tetrahedra, and edges with four equivalent Co(3)O6 octahedra. In the second Co site, Co(2) is bonded to two equivalent O(4) and four equivalent O(6) atoms to form CoO6 octahedra that share corners with two equivalent As(1)O4 tetrahedra, corners with four equivalent V(1)O4 tetrahedra, and edges with four equivalent Co(3)O6 octahedra. In the third Co site, Co(3) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form CoO6 octahedra that share corners with three equivalent V(1)O4 tetrahedra, corners with three equivalent As(1)O4 tetrahedra,  an edgeedge with one Co(1)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, and edges with two equivalent Co(3)O6 octahedra. As(1) is bonded to one O(1), one O(4), and two equivalent O(5) atoms to form AsO4 tetrahedra that share  a cornercorner with one Co(2)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, and corners with six equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-54°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Co(3) and one As(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one V(1) and two equivalent Co(3) atoms. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one V(1), one Co(1), and two equivalent Co(3) atoms. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Co(2), two equivalent Co(3), and one As(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(3), and one As(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one V(1), one Co(2), and one Co(3) atom. is represented by the CIF file [CIF]
data_VCo3AsO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.463
_cell_length_b   6.463
_cell_length_c   8.220
_cell_angle_alpha   89.985
_cell_angle_beta   89.985
_cell_angle_gamma   54.847
_symmetry_Int_Tables_number   1
_cell_volume   280.763
_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
  V  V0  1  0.622  0.622  0.883  1.0
  V  V1  1  0.378  0.378  0.117  1.0
  Co  Co2  1  0.500  0.500  0.500  1.0
  Co  Co3  1  0.000  0.000  0.000  1.0
  Co  Co4  1  0.886  0.383  0.251  1.0
  Co  Co5  1  0.617  0.114  0.749  1.0
  Co  Co6  1  0.114  0.617  0.749  1.0
  Co  Co7  1  0.383  0.886  0.251  1.0
  As  As8  1  0.875  0.875  0.384  1.0
  As  As9  1  0.125  0.125  0.616  1.0
  O  O10  1  0.753  0.753  0.267  1.0
  O  O11  1  0.247  0.247  0.733  1.0
  O  O12  1  0.749  0.749  0.771  1.0
  O  O13  1  0.251  0.251  0.229  1.0
  O  O14  1  0.500  0.500  0.252  1.0
  O  O15  1  0.500  0.500  0.748  1.0
  O  O16  1  0.005  0.005  0.746  1.0
  O  O17  1  0.995  0.995  0.254  1.0
  O  O18  1  0.884  0.357  0.499  1.0
  O  O19  1  0.643  0.116  0.501  1.0
  O  O20  1  0.147  0.620  0.995  1.0
  O  O21  1  0.380  0.853  0.005  1.0
  O  O22  1  0.116  0.643  0.501  1.0
  O  O23  1  0.357  0.884  0.499  1.0
  O  O24  1  0.853  0.380  0.005  1.0
  O  O25  1  0.620  0.147  0.995  1.0
[/CIF]
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The material described by VCo3AsO8 crystallizes in the monoclinic C2/m space group. V(1) is bonded to one O(2), one O(3), and two equivalent O(6) atoms to form VO4 tetrahedra that share  a cornercorner with one Co(1)O6 octahedra, corners with two equivalent Co(2)O6 octahedra, and corners with six equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-56°. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent O(3) and four equivalent O(5) atoms to form CoO6 octahedra that share corners with two equivalent V(1)O4 tetrahedra, corners with four equivalent As(1)O4 tetrahedra, and edges with four equivalent Co(3)O6 octahedra. In the second Co site, Co(2) is bonded to two equivalent O(4) and four equivalent O(6) atoms to form CoO6 octahedra that share corners with two equivalent As(1)O4 tetrahedra, corners with four equivalent V(1)O4 tetrahedra, and edges with four equivalent Co(3)O6 octahedra. In the third Co site, Co(3) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form CoO6 octahedra that share corners with three equivalent V(1)O4 tetrahedra, corners with three equivalent As(1)O4 tetrahedra,  an edgeedge with one Co(1)O6 octahedra,  an edgeedge with one Co(2)O6 octahedra, and edges with two equivalent Co(3)O6 octahedra. As(1) is bonded to one O(1), one O(4), and two equivalent O(5) atoms to form AsO4 tetrahedra that share  a cornercorner with one Co(2)O6 octahedra, corners with two equivalent Co(1)O6 octahedra, and corners with six equivalent Co(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-54°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Co(3) and one As(1) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one V(1) and two equivalent Co(3) atoms. In the third O site, O(3) is bonded in a rectangular see-saw-like geometry to one V(1), one Co(1), and two equivalent Co(3) atoms. In the fourth O site, O(4) is bonded in a rectangular see-saw-like geometry to one Co(2), two equivalent Co(3), and one As(1) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Co(1), one Co(3), and one As(1) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one V(1), one Co(2), and one Co(3) atom. is represented by the CIF file [CIF]
data_VCo3AsO8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.463
_cell_length_b   6.463
_cell_length_c   8.220
_cell_angle_alpha   89.985
_cell_angle_beta   89.985
_cell_angle_gamma   54.847
_symmetry_Int_Tables_number   1
_cell_volume   280.763
_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
  V  V0  1  0.622  0.622  0.883  1.0
  V  V1  1  0.378  0.378  0.117  1.0
  Co  Co2  1  0.500  0.500  0.500  1.0
  Co  Co3  1  0.000  0.000  0.000  1.0
  Co  Co4  1  0.886  0.383  0.251  1.0
  Co  Co5  1  0.617  0.114  0.749  1.0
  Co  Co6  1  0.114  0.617  0.749  1.0
  Co  Co7  1  0.383  0.886  0.251  1.0
  As  As8  1  0.875  0.875  0.384  1.0
  As  As9  1  0.125  0.125  0.616  1.0
  O  O10  1  0.753  0.753  0.267  1.0
  O  O11  1  0.247  0.247  0.733  1.0
  O  O12  1  0.749  0.749  0.771  1.0
  O  O13  1  0.251  0.251  0.229  1.0
  O  O14  1  0.500  0.500  0.252  1.0
  O  O15  1  0.500  0.500  0.748  1.0
  O  O16  1  0.005  0.005  0.746  1.0
  O  O17  1  0.995  0.995  0.254  1.0
  O  O18  1  0.884  0.357  0.499  1.0
  O  O19  1  0.643  0.116  0.501  1.0
  O  O20  1  0.147  0.620  0.995  1.0
  O  O21  1  0.380  0.853  0.005  1.0
  O  O22  1  0.116  0.643  0.501  1.0
  O  O23  1  0.357  0.884  0.499  1.0
  O  O24  1  0.853  0.380  0.005  1.0
  O  O25  1  0.620  0.147  0.995  1.0
[/CIF]
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