The material structure described by V(CoSe2)2 crystallizes in the monoclinic C2/m space group. V(1) is bonded to two equivalent Se(1) and four equivalent Se(2) atoms to form VSe6 octahedra that share corners with twelve equivalent Co(1)Se6 octahedra, edges with two equivalent V(1)Se6 octahedra, and faces with two equivalent Co(1)Se6 octahedra. The corner-sharing octahedral tilt angles range from 50-54°. Co(1) is bonded to three equivalent Se(1) and three equivalent Se(2) atoms to form distorted CoSe6 octahedra that share corners with six equivalent V(1)Se6 octahedra, edges with six equivalent Co(1)Se6 octahedra, and  a faceface with one V(1)Se6 octahedra. The corner-sharing octahedral tilt angles range from 50-54°. There are two inequivalent Se sites. In the first Se site, Se(2) is bonded in a 5-coordinate geometry to two equivalent V(1) and three equivalent Co(1) atoms. In the second Se site, Se(1) is bonded in a rectangular see-saw-like geometry to one V(1) and three equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_V(CoSe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.517
_cell_length_b   6.517
_cell_length_c   6.348
_cell_angle_alpha   60.990
_cell_angle_beta   60.990
_cell_angle_gamma   31.165
_symmetry_Int_Tables_number   1
_cell_volume   120.550
_cell_formula_units_Z   1
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
  Co  Co1  1  0.743  0.743  0.274  1.0
  Co  Co2  1  0.257  0.257  0.726  1.0
  Se  Se3  1  0.868  0.868  0.457  1.0
  Se  Se4  1  0.132  0.132  0.543  1.0
  Se  Se5  1  0.636  0.636  0.034  1.0
  Se  Se6  1  0.364  0.364  0.966  1.0
[/CIF]
.
The material structure described by V(CoSe2)2 crystallizes in the monoclinic C2/m space group. V(1) is bonded to two equivalent Se(1) and four equivalent Se(2) atoms to form VSe6 octahedra that share corners with twelve equivalent Co(1)Se6 octahedra, edges with two equivalent V(1)Se6 octahedra, and faces with two equivalent Co(1)Se6 octahedra. The corner-sharing octahedral tilt angles range from 50-54°. Co(1) is bonded to three equivalent Se(1) and three equivalent Se(2) atoms to form distorted CoSe6 octahedra that share corners with six equivalent V(1)Se6 octahedra, edges with six equivalent Co(1)Se6 octahedra, and  a faceface with one V(1)Se6 octahedra. The corner-sharing octahedral tilt angles range from 50-54°. There are two inequivalent Se sites. In the first Se site, Se(2) is bonded in a 5-coordinate geometry to two equivalent V(1) and three equivalent Co(1) atoms. In the second Se site, Se(1) is bonded in a rectangular see-saw-like geometry to one V(1) and three equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_V(CoSe2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.517
_cell_length_b   6.517
_cell_length_c   6.348
_cell_angle_alpha   60.990
_cell_angle_beta   60.990
_cell_angle_gamma   31.165
_symmetry_Int_Tables_number   1
_cell_volume   120.550
_cell_formula_units_Z   1
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
  Co  Co1  1  0.743  0.743  0.274  1.0
  Co  Co2  1  0.257  0.257  0.726  1.0
  Se  Se3  1  0.868  0.868  0.457  1.0
  Se  Se4  1  0.132  0.132  0.543  1.0
  Se  Se5  1  0.636  0.636  0.034  1.0
  Se  Se6  1  0.364  0.364  0.966  1.0
[/CIF]
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