The material described by VCu3(SeS)2 is Sulvanite-derived structured and crystallizes in the orthorhombic Cmm2 space group. V(1) is bonded to two equivalent Se(1) and two equivalent S(1) atoms to form VSe2S2 tetrahedra that share edges with two equivalent Cu(2)Se2S2 tetrahedra and edges with four equivalent Cu(1)Se2S2 tetrahedra. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent Se(1) and two equivalent S(1) atoms to form distorted CuSe2S2 tetrahedra that share corners with four equivalent Cu(1)Se2S2 tetrahedra, corners with four equivalent Cu(2)Se2S2 tetrahedra, and edges with two equivalent V(1)Se2S2 tetrahedra. In the second Cu site, Cu(2) is bonded to two equivalent Se(1) and two equivalent S(1) atoms to form distorted CuSe2S2 tetrahedra that share corners with eight equivalent Cu(1)Se2S2 tetrahedra and edges with two equivalent V(1)Se2S2 tetrahedra. Se(1) is bonded to one V(1), one Cu(2), and two equivalent Cu(1) atoms to form SeVCu3 tetrahedra that share corners with two equivalent Se(1)VCu3 tetrahedra, corners with four equivalent S(1)VCu3 tetrahedra,  an edgeedge with one Se(1)VCu3 tetrahedra, and edges with two equivalent S(1)VCu3 tetrahedra. S(1) is bonded to one V(1), one Cu(2), and two equivalent Cu(1) atoms to form distorted SVCu3 tetrahedra that share corners with two equivalent S(1)VCu3 tetrahedra, corners with four equivalent Se(1)VCu3 tetrahedra,  an edgeedge with one S(1)VCu3 tetrahedra, and edges with two equivalent Se(1)VCu3 tetrahedra. is represented by the CIF file [CIF]
data_VCu3(SeS)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.508
_cell_length_b   5.508
_cell_length_c   5.515
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   91.147
_symmetry_Int_Tables_number   1
_cell_volume   167.319
_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  0.001  1.0
  Cu  Cu1  1  0.500  0.000  0.014  1.0
  Cu  Cu2  1  0.000  0.500  0.014  1.0
  Cu  Cu3  1  0.000  0.000  0.492  1.0
  Se  Se4  1  0.750  0.750  0.755  1.0
  Se  Se5  1  0.250  0.250  0.755  1.0
  S  S6  1  0.230  0.770  0.234  1.0
  S  S7  1  0.770  0.230  0.234  1.0
[/CIF]
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The material described by VCu3(SeS)2 is Sulvanite-derived structured and crystallizes in the orthorhombic Cmm2 space group. V(1) is bonded to two equivalent Se(1) and two equivalent S(1) atoms to form VSe2S2 tetrahedra that share edges with two equivalent Cu(2)Se2S2 tetrahedra and edges with four equivalent Cu(1)Se2S2 tetrahedra. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to two equivalent Se(1) and two equivalent S(1) atoms to form distorted CuSe2S2 tetrahedra that share corners with four equivalent Cu(1)Se2S2 tetrahedra, corners with four equivalent Cu(2)Se2S2 tetrahedra, and edges with two equivalent V(1)Se2S2 tetrahedra. In the second Cu site, Cu(2) is bonded to two equivalent Se(1) and two equivalent S(1) atoms to form distorted CuSe2S2 tetrahedra that share corners with eight equivalent Cu(1)Se2S2 tetrahedra and edges with two equivalent V(1)Se2S2 tetrahedra. Se(1) is bonded to one V(1), one Cu(2), and two equivalent Cu(1) atoms to form SeVCu3 tetrahedra that share corners with two equivalent Se(1)VCu3 tetrahedra, corners with four equivalent S(1)VCu3 tetrahedra,  an edgeedge with one Se(1)VCu3 tetrahedra, and edges with two equivalent S(1)VCu3 tetrahedra. S(1) is bonded to one V(1), one Cu(2), and two equivalent Cu(1) atoms to form distorted SVCu3 tetrahedra that share corners with two equivalent S(1)VCu3 tetrahedra, corners with four equivalent Se(1)VCu3 tetrahedra,  an edgeedge with one S(1)VCu3 tetrahedra, and edges with two equivalent Se(1)VCu3 tetrahedra. is represented by the CIF file [CIF]
data_VCu3(SeS)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.508
_cell_length_b   5.508
_cell_length_c   5.515
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   91.147
_symmetry_Int_Tables_number   1
_cell_volume   167.319
_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  0.001  1.0
  Cu  Cu1  1  0.500  0.000  0.014  1.0
  Cu  Cu2  1  0.000  0.500  0.014  1.0
  Cu  Cu3  1  0.000  0.000  0.492  1.0
  Se  Se4  1  0.750  0.750  0.755  1.0
  Se  Se5  1  0.250  0.250  0.755  1.0
  S  S6  1  0.230  0.770  0.234  1.0
  S  S7  1  0.770  0.230  0.234  1.0
[/CIF]
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