The structure described by Nb2V3(Cu3S4)5 is Sulvanite-derived structured and crystallizes in the tetragonal P-42m space group. Nb(1) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form distorted NbS4 tetrahedra that share  an edgeedge with one Cu(1)S4 tetrahedra,  an edgeedge with one Cu(2)S4 tetrahedra, and edges with four equivalent Cu(4)S4 tetrahedra. There are two inequivalent V sites. In the first V site, V(1) is bonded to two equivalent S(3) and two equivalent S(5) atoms to form VS4 tetrahedra that share  an edgeedge with one Cu(2)S4 tetrahedra,  an edgeedge with one Cu(3)S4 tetrahedra, and edges with four equivalent Cu(5)S4 tetrahedra. In the second V site, V(2) is bonded to four equivalent S(4) atoms to form VS4 tetrahedra that share edges with two equivalent Cu(3)S4 tetrahedra and edges with four equivalent Cu(6)S4 tetrahedra. There are six inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to four equivalent S(1) atoms to form distorted CuS4 tetrahedra that share corners with eight equivalent Cu(4)S4 tetrahedra and edges with two equivalent Nb(1)S4 tetrahedra. In the second Cu site, Cu(2) is bonded to two equivalent S(2) and two equivalent S(5) atoms to form distorted CuS4 tetrahedra that share corners with four equivalent Cu(4)S4 tetrahedra, corners with four equivalent Cu(5)S4 tetrahedra,  an edgeedge with one Nb(1)S4 tetrahedra, and  an edgeedge with one V(1)S4 tetrahedra. In the third Cu site, Cu(3) is bonded to two equivalent S(3) and two equivalent S(4) atoms to form distorted CuS4 tetrahedra that share corners with four equivalent Cu(5)S4 tetrahedra, corners with four equivalent Cu(6)S4 tetrahedra,  an edgeedge with one V(1)S4 tetrahedra, and  an edgeedge with one V(2)S4 tetrahedra. In the fourth Cu site, Cu(4) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form distorted CuS4 tetrahedra that share corners with two equivalent Cu(1)S4 tetrahedra, corners with two equivalent Cu(2)S4 tetrahedra, corners with four equivalent Cu(4)S4 tetrahedra, and edges with two equivalent Nb(1)S4 tetrahedra. In the fifth Cu site, Cu(5) is bonded to two equivalent S(3) and two equivalent S(5) atoms to form distorted CuS4 tetrahedra that share corners with two equivalent Cu(2)S4 tetrahedra, corners with two equivalent Cu(3)S4 tetrahedra, corners with four equivalent Cu(5)S4 tetrahedra, and edges with two equivalent V(1)S4 tetrahedra. In the sixth Cu site, Cu(6) is bonded to four equivalent S(4) atoms to form distorted CuS4 tetrahedra that share corners with four equivalent Cu(3)S4 tetrahedra, corners with four equivalent Cu(6)S4 tetrahedra, and edges with two equivalent V(2)S4 tetrahedra. There are five inequivalent S sites. In the first S site, S(1) is bonded to one Nb(1), one Cu(1), and two equivalent Cu(4) atoms to form a mixture of corner and edge-sharing SNbCu3 tetrahedra. In the second S site, S(2) is bonded to one Nb(1), one Cu(2), and two equivalent Cu(4) atoms to form SNbCu3 tetrahedra that share corners with two equivalent S(1)NbCu3 tetrahedra, corners with two equivalent S(2)NbCu3 tetrahedra, corners with two equivalent S(5)VCu3 tetrahedra,  an edgeedge with one S(2)NbCu3 tetrahedra, and edges with two equivalent S(1)NbCu3 tetrahedra. In the third S site, S(3) is bonded to one V(1), one Cu(3), and two equivalent Cu(5) atoms to form a mixture of distorted corner and edge-sharing SVCu3 tetrahedra. In the fourth S site, S(4) is bonded to one V(2), one Cu(3), and two equivalent Cu(6) atoms to form a mixture of distorted corner and edge-sharing SVCu3 tetrahedra. In the fifth S site, S(5) is bonded to one V(1), one Cu(2), and two equivalent Cu(5) atoms to form distorted SVCu3 tetrahedra that share corners with two equivalent S(2)NbCu3 tetrahedra, corners with two equivalent S(3)VCu3 tetrahedra, corners with two equivalent S(5)VCu3 tetrahedra,  an edgeedge with one S(5)VCu3 tetrahedra, and edges with two equivalent S(3)VCu3 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nb2V3(Cu3S4)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.454
_cell_length_b   5.454
_cell_length_c   27.262
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   811.023
_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
  Nb  Nb0  1  0.000  0.000  0.900  1.0
  Nb  Nb1  1  0.000  0.000  0.100  1.0
  V  V2  1  0.000  0.000  0.300  1.0
  V  V3  1  0.000  0.000  0.500  1.0
  V  V4  1  0.000  0.000  0.700  1.0
  Cu  Cu5  1  0.000  0.000  0.000  1.0
  Cu  Cu6  1  0.000  0.000  0.201  1.0
  Cu  Cu7  1  0.000  0.000  0.400  1.0
  Cu  Cu8  1  0.000  0.000  0.600  1.0
  Cu  Cu9  1  0.000  0.000  0.799  1.0
  Cu  Cu10  1  0.000  0.500  0.900  1.0
  Cu  Cu11  1  0.000  0.500  0.100  1.0
  Cu  Cu12  1  0.000  0.500  0.300  1.0
  Cu  Cu13  1  0.000  0.500  0.500  1.0
  Cu  Cu14  1  0.000  0.500  0.700  1.0
  Cu  Cu15  1  0.500  0.000  0.900  1.0
  Cu  Cu16  1  0.500  0.000  0.100  1.0
  Cu  Cu17  1  0.500  0.000  0.300  1.0
  Cu  Cu18  1  0.500  0.000  0.500  1.0
  Cu  Cu19  1  0.500  0.000  0.700  1.0
  S  S20  1  0.753  0.753  0.949  1.0
  S  S21  1  0.753  0.753  0.149  1.0
  S  S22  1  0.765  0.765  0.347  1.0
  S  S23  1  0.765  0.765  0.547  1.0
  S  S24  1  0.765  0.765  0.747  1.0
  S  S25  1  0.753  0.247  0.051  1.0
  S  S26  1  0.765  0.235  0.253  1.0
  S  S27  1  0.765  0.235  0.453  1.0
  S  S28  1  0.765  0.235  0.653  1.0
  S  S29  1  0.753  0.247  0.851  1.0
  S  S30  1  0.247  0.753  0.051  1.0
  S  S31  1  0.235  0.765  0.253  1.0
  S  S32  1  0.235  0.765  0.453  1.0
  S  S33  1  0.235  0.765  0.653  1.0
  S  S34  1  0.247  0.753  0.851  1.0
  S  S35  1  0.247  0.247  0.949  1.0
  S  S36  1  0.247  0.247  0.149  1.0
  S  S37  1  0.235  0.235  0.347  1.0
  S  S38  1  0.235  0.235  0.547  1.0
  S  S39  1  0.235  0.235  0.747  1.0
[/CIF]
.
The structure described by Nb2V3(Cu3S4)5 is Sulvanite-derived structured and crystallizes in the tetragonal P-42m space group. Nb(1) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form distorted NbS4 tetrahedra that share  an edgeedge with one Cu(1)S4 tetrahedra,  an edgeedge with one Cu(2)S4 tetrahedra, and edges with four equivalent Cu(4)S4 tetrahedra. There are two inequivalent V sites. In the first V site, V(1) is bonded to two equivalent S(3) and two equivalent S(5) atoms to form VS4 tetrahedra that share  an edgeedge with one Cu(2)S4 tetrahedra,  an edgeedge with one Cu(3)S4 tetrahedra, and edges with four equivalent Cu(5)S4 tetrahedra. In the second V site, V(2) is bonded to four equivalent S(4) atoms to form VS4 tetrahedra that share edges with two equivalent Cu(3)S4 tetrahedra and edges with four equivalent Cu(6)S4 tetrahedra. There are six inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to four equivalent S(1) atoms to form distorted CuS4 tetrahedra that share corners with eight equivalent Cu(4)S4 tetrahedra and edges with two equivalent Nb(1)S4 tetrahedra. In the second Cu site, Cu(2) is bonded to two equivalent S(2) and two equivalent S(5) atoms to form distorted CuS4 tetrahedra that share corners with four equivalent Cu(4)S4 tetrahedra, corners with four equivalent Cu(5)S4 tetrahedra,  an edgeedge with one Nb(1)S4 tetrahedra, and  an edgeedge with one V(1)S4 tetrahedra. In the third Cu site, Cu(3) is bonded to two equivalent S(3) and two equivalent S(4) atoms to form distorted CuS4 tetrahedra that share corners with four equivalent Cu(5)S4 tetrahedra, corners with four equivalent Cu(6)S4 tetrahedra,  an edgeedge with one V(1)S4 tetrahedra, and  an edgeedge with one V(2)S4 tetrahedra. In the fourth Cu site, Cu(4) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form distorted CuS4 tetrahedra that share corners with two equivalent Cu(1)S4 tetrahedra, corners with two equivalent Cu(2)S4 tetrahedra, corners with four equivalent Cu(4)S4 tetrahedra, and edges with two equivalent Nb(1)S4 tetrahedra. In the fifth Cu site, Cu(5) is bonded to two equivalent S(3) and two equivalent S(5) atoms to form distorted CuS4 tetrahedra that share corners with two equivalent Cu(2)S4 tetrahedra, corners with two equivalent Cu(3)S4 tetrahedra, corners with four equivalent Cu(5)S4 tetrahedra, and edges with two equivalent V(1)S4 tetrahedra. In the sixth Cu site, Cu(6) is bonded to four equivalent S(4) atoms to form distorted CuS4 tetrahedra that share corners with four equivalent Cu(3)S4 tetrahedra, corners with four equivalent Cu(6)S4 tetrahedra, and edges with two equivalent V(2)S4 tetrahedra. There are five inequivalent S sites. In the first S site, S(1) is bonded to one Nb(1), one Cu(1), and two equivalent Cu(4) atoms to form a mixture of corner and edge-sharing SNbCu3 tetrahedra. In the second S site, S(2) is bonded to one Nb(1), one Cu(2), and two equivalent Cu(4) atoms to form SNbCu3 tetrahedra that share corners with two equivalent S(1)NbCu3 tetrahedra, corners with two equivalent S(2)NbCu3 tetrahedra, corners with two equivalent S(5)VCu3 tetrahedra,  an edgeedge with one S(2)NbCu3 tetrahedra, and edges with two equivalent S(1)NbCu3 tetrahedra. In the third S site, S(3) is bonded to one V(1), one Cu(3), and two equivalent Cu(5) atoms to form a mixture of distorted corner and edge-sharing SVCu3 tetrahedra. In the fourth S site, S(4) is bonded to one V(2), one Cu(3), and two equivalent Cu(6) atoms to form a mixture of distorted corner and edge-sharing SVCu3 tetrahedra. In the fifth S site, S(5) is bonded to one V(1), one Cu(2), and two equivalent Cu(5) atoms to form distorted SVCu3 tetrahedra that share corners with two equivalent S(2)NbCu3 tetrahedra, corners with two equivalent S(3)VCu3 tetrahedra, corners with two equivalent S(5)VCu3 tetrahedra,  an edgeedge with one S(5)VCu3 tetrahedra, and edges with two equivalent S(3)VCu3 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Nb2V3(Cu3S4)5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.454
_cell_length_b   5.454
_cell_length_c   27.262
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   811.023
_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
  Nb  Nb0  1  0.000  0.000  0.900  1.0
  Nb  Nb1  1  0.000  0.000  0.100  1.0
  V  V2  1  0.000  0.000  0.300  1.0
  V  V3  1  0.000  0.000  0.500  1.0
  V  V4  1  0.000  0.000  0.700  1.0
  Cu  Cu5  1  0.000  0.000  0.000  1.0
  Cu  Cu6  1  0.000  0.000  0.201  1.0
  Cu  Cu7  1  0.000  0.000  0.400  1.0
  Cu  Cu8  1  0.000  0.000  0.600  1.0
  Cu  Cu9  1  0.000  0.000  0.799  1.0
  Cu  Cu10  1  0.000  0.500  0.900  1.0
  Cu  Cu11  1  0.000  0.500  0.100  1.0
  Cu  Cu12  1  0.000  0.500  0.300  1.0
  Cu  Cu13  1  0.000  0.500  0.500  1.0
  Cu  Cu14  1  0.000  0.500  0.700  1.0
  Cu  Cu15  1  0.500  0.000  0.900  1.0
  Cu  Cu16  1  0.500  0.000  0.100  1.0
  Cu  Cu17  1  0.500  0.000  0.300  1.0
  Cu  Cu18  1  0.500  0.000  0.500  1.0
  Cu  Cu19  1  0.500  0.000  0.700  1.0
  S  S20  1  0.753  0.753  0.949  1.0
  S  S21  1  0.753  0.753  0.149  1.0
  S  S22  1  0.765  0.765  0.347  1.0
  S  S23  1  0.765  0.765  0.547  1.0
  S  S24  1  0.765  0.765  0.747  1.0
  S  S25  1  0.753  0.247  0.051  1.0
  S  S26  1  0.765  0.235  0.253  1.0
  S  S27  1  0.765  0.235  0.453  1.0
  S  S28  1  0.765  0.235  0.653  1.0
  S  S29  1  0.753  0.247  0.851  1.0
  S  S30  1  0.247  0.753  0.051  1.0
  S  S31  1  0.235  0.765  0.253  1.0
  S  S32  1  0.235  0.765  0.453  1.0
  S  S33  1  0.235  0.765  0.653  1.0
  S  S34  1  0.247  0.753  0.851  1.0
  S  S35  1  0.247  0.247  0.949  1.0
  S  S36  1  0.247  0.247  0.149  1.0
  S  S37  1  0.235  0.235  0.347  1.0
  S  S38  1  0.235  0.235  0.547  1.0
  S  S39  1  0.235  0.235  0.747  1.0
[/CIF]
.