The structure described by Ag7NbS6 crystallizes in the triclinic P1 space group. Nb(1) is bonded to one S(3), one S(4), one S(5), and one S(6) atom to form NbS4 tetrahedra that share corners with two equivalent Ag(4)S4 tetrahedra and  an edgeedge with one Ag(2)S4 tetrahedra. There are seven inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 3-coordinate geometry to one S(1), one S(2), and one S(5) atom. In the second Ag site, Ag(2) is bonded to one S(1), one S(2), one S(3), and one S(4) atom to form distorted AgS4 tetrahedra that share corners with three equivalent Ag(4)S4 tetrahedra and  an edgeedge with one Nb(1)S4 tetrahedra. In the third Ag site, Ag(3) is bonded in a 3-coordinate geometry to one S(1), one S(5), and one S(6) atom. In the fourth Ag site, Ag(4) is bonded to one S(1), one S(2), one S(4), and one S(6) atom to form distorted AgS4 tetrahedra that share corners with two equivalent Nb(1)S4 tetrahedra and corners with three equivalent Ag(2)S4 tetrahedra. In the fifth Ag site, Ag(5) is bonded in a 3-coordinate geometry to one S(1), one S(3), and one S(6) atom. In the sixth Ag site, Ag(6) is bonded in a distorted bent 150 degrees geometry to one S(1), one S(2), one S(3), and one S(4) atom. In the seventh Ag site, Ag(7) is bonded in a 3-coordinate geometry to one S(2), one S(3), and one S(6) atom. There are six inequivalent S sites. In the first S site, S(1) is bonded in a 6-coordinate geometry to one Ag(1), one Ag(2), one Ag(3), one Ag(4), one Ag(5), and one Ag(6) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to one Ag(1), one Ag(2), one Ag(4), one Ag(6), and one Ag(7) atom. In the third S site, S(3) is bonded in a 5-coordinate geometry to one Nb(1), one Ag(2), one Ag(5), one Ag(6), and one Ag(7) atom. In the fourth S site, S(4) is bonded in a distorted see-saw-like geometry to one Nb(1), one Ag(2), one Ag(4), and one Ag(6) atom. In the fifth S site, S(5) is bonded in a 3-coordinate geometry to one Nb(1), one Ag(1), and one Ag(3) atom. In the sixth S site, S(6) is bonded in a distorted trigonal bipyramidal geometry to one Nb(1), one Ag(3), one Ag(4), one Ag(5), and one Ag(7) atom. is represented by the CIF file [CIF]
data_NbAg7S6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.552
_cell_length_b   7.574
_cell_length_c   7.643
_cell_angle_alpha   92.190
_cell_angle_beta   117.773
_cell_angle_gamma   118.516
_symmetry_Int_Tables_number   1
_cell_volume   320.201
_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  0.982  0.486  0.504  1.0
  Ag  Ag1  1  0.882  0.259  0.889  1.0
  Ag  Ag2  1  0.454  0.196  0.086  1.0
  Ag  Ag3  1  0.064  0.714  0.064  1.0
  Ag  Ag4  1  0.635  0.636  0.676  1.0
  Ag  Ag5  1  0.085  0.196  0.306  1.0
  Ag  Ag6  1  0.094  0.973  0.615  1.0
  Ag  Ag7  1  0.427  0.014  0.496  1.0
  S  S8  1  0.016  0.009  0.979  1.0
  S  S9  1  0.520  0.289  0.777  1.0
  S  S10  1  0.742  0.112  0.369  1.0
  S  S11  1  0.730  0.606  0.384  1.0
  S  S12  1  0.207  0.592  0.860  1.0
  S  S13  1  0.246  0.614  0.387  1.0
[/CIF]
.
The structure described by Ag7NbS6 crystallizes in the triclinic P1 space group. Nb(1) is bonded to one S(3), one S(4), one S(5), and one S(6) atom to form NbS4 tetrahedra that share corners with two equivalent Ag(4)S4 tetrahedra and  an edgeedge with one Ag(2)S4 tetrahedra. There are seven inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a 3-coordinate geometry to one S(1), one S(2), and one S(5) atom. In the second Ag site, Ag(2) is bonded to one S(1), one S(2), one S(3), and one S(4) atom to form distorted AgS4 tetrahedra that share corners with three equivalent Ag(4)S4 tetrahedra and  an edgeedge with one Nb(1)S4 tetrahedra. In the third Ag site, Ag(3) is bonded in a 3-coordinate geometry to one S(1), one S(5), and one S(6) atom. In the fourth Ag site, Ag(4) is bonded to one S(1), one S(2), one S(4), and one S(6) atom to form distorted AgS4 tetrahedra that share corners with two equivalent Nb(1)S4 tetrahedra and corners with three equivalent Ag(2)S4 tetrahedra. In the fifth Ag site, Ag(5) is bonded in a 3-coordinate geometry to one S(1), one S(3), and one S(6) atom. In the sixth Ag site, Ag(6) is bonded in a distorted bent 150 degrees geometry to one S(1), one S(2), one S(3), and one S(4) atom. In the seventh Ag site, Ag(7) is bonded in a 3-coordinate geometry to one S(2), one S(3), and one S(6) atom. There are six inequivalent S sites. In the first S site, S(1) is bonded in a 6-coordinate geometry to one Ag(1), one Ag(2), one Ag(3), one Ag(4), one Ag(5), and one Ag(6) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to one Ag(1), one Ag(2), one Ag(4), one Ag(6), and one Ag(7) atom. In the third S site, S(3) is bonded in a 5-coordinate geometry to one Nb(1), one Ag(2), one Ag(5), one Ag(6), and one Ag(7) atom. In the fourth S site, S(4) is bonded in a distorted see-saw-like geometry to one Nb(1), one Ag(2), one Ag(4), and one Ag(6) atom. In the fifth S site, S(5) is bonded in a 3-coordinate geometry to one Nb(1), one Ag(1), and one Ag(3) atom. In the sixth S site, S(6) is bonded in a distorted trigonal bipyramidal geometry to one Nb(1), one Ag(3), one Ag(4), one Ag(5), and one Ag(7) atom. is represented by the CIF file [CIF]
data_NbAg7S6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.552
_cell_length_b   7.574
_cell_length_c   7.643
_cell_angle_alpha   92.190
_cell_angle_beta   117.773
_cell_angle_gamma   118.516
_symmetry_Int_Tables_number   1
_cell_volume   320.201
_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  0.982  0.486  0.504  1.0
  Ag  Ag1  1  0.882  0.259  0.889  1.0
  Ag  Ag2  1  0.454  0.196  0.086  1.0
  Ag  Ag3  1  0.064  0.714  0.064  1.0
  Ag  Ag4  1  0.635  0.636  0.676  1.0
  Ag  Ag5  1  0.085  0.196  0.306  1.0
  Ag  Ag6  1  0.094  0.973  0.615  1.0
  Ag  Ag7  1  0.427  0.014  0.496  1.0
  S  S8  1  0.016  0.009  0.979  1.0
  S  S9  1  0.520  0.289  0.777  1.0
  S  S10  1  0.742  0.112  0.369  1.0
  S  S11  1  0.730  0.606  0.384  1.0
  S  S12  1  0.207  0.592  0.860  1.0
  S  S13  1  0.246  0.614  0.387  1.0
[/CIF]
.