The material structure described by K4MgNb2(AgS4)2 crystallizes in the triclinic P1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 4-coordinate geometry to one S(2), one S(3), one S(7), and one S(8) atom. In the second K site, K(2) is bonded in a 5-coordinate geometry to one S(2), one S(5), one S(8), and two equivalent S(7) atoms. In the third K site, K(3) is bonded in a 4-coordinate geometry to one S(1), one S(4), one S(5), and one S(6) atom. In the fourth K site, K(4) is bonded in a 5-coordinate geometry to one S(4), one S(6), one S(7), and two equivalent S(5) atoms. Mg(1) is bonded in a distorted rectangular see-saw-like geometry to one S(1), one S(2), one S(3), and one S(4) atom. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one S(5), one S(6), one S(7), and one S(8) atom to form NbS4 tetrahedra that share edges with two equivalent Ag(1)S4 tetrahedra. In the second Nb site, Nb(2) is bonded in a tetrahedral geometry to one S(1), one S(2), one S(3), and one S(4) atom. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to one S(5), one S(6), one S(7), and one S(8) atom to form distorted AgS4 tetrahedra that share edges with two equivalent Nb(1)S4 tetrahedra. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to one S(1), one S(2), one S(3), and one S(4) atom. There are eight inequivalent S sites. In the first S site, S(1) is bonded in a distorted see-saw-like geometry to one K(3), one Mg(1), one Nb(2), and one Ag(2) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to one K(1), one K(2), one Mg(1), one Nb(2), and one Ag(2) atom. In the third S site, S(3) is bonded in a distorted see-saw-like geometry to one K(1), one Mg(1), one Nb(2), and one Ag(2) atom. In the fourth S site, S(4) is bonded in a 5-coordinate geometry to one K(3), one K(4), one Mg(1), one Nb(2), and one Ag(2) atom. In the fifth S site, S(5) is bonded in a 6-coordinate geometry to one K(2), one K(3), two equivalent K(4), one Nb(1), and one Ag(1) atom. In the sixth S site, S(6) is bonded in a distorted rectangular see-saw-like geometry to one K(3), one K(4), one Nb(1), and one Ag(1) atom. In the seventh S site, S(7) is bonded in a 6-coordinate geometry to one K(1), one K(4), two equivalent K(2), one Nb(1), and one Ag(1) atom. In the eighth S site, S(8) is bonded in a distorted rectangular see-saw-like geometry to one K(1), one K(2), one Nb(1), and one Ag(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K4MgNb2(AgS4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.937
_cell_length_b   7.404
_cell_length_c   12.843
_cell_angle_alpha   86.505
_cell_angle_beta   81.223
_cell_angle_gamma   66.332
_symmetry_Int_Tables_number   1
_cell_volume   511.008
_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
  K  K0  1  0.332  0.282  0.557  1.0
  K  K1  1  0.804  0.748  0.390  1.0
  K  K2  1  0.386  0.282  0.942  1.0
  K  K3  1  0.449  0.746  0.109  1.0
  Mg  Mg4  1  0.898  0.205  0.750  1.0
  Nb  Nb5  1  0.364  0.273  0.250  1.0
  Nb  Nb6  1  0.624  0.751  0.750  1.0
  Ag  Ag7  1  0.874  0.252  0.250  1.0
  Ag  Ag8  1  0.154  0.690  0.750  1.0
  S  S9  1  0.896  0.498  0.849  1.0
  S  S10  1  0.802  0.946  0.648  1.0
  S  S11  1  0.605  0.498  0.651  1.0
  S  S12  1  0.250  0.946  0.852  1.0
  S  S13  1  0.066  0.483  0.151  1.0
  S  S14  1  0.708  0.070  0.138  1.0
  S  S15  1  0.450  0.483  0.349  1.0
  S  S16  1  0.223  0.070  0.362  1.0
[/CIF]
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The material structure described by K4MgNb2(AgS4)2 crystallizes in the triclinic P1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 4-coordinate geometry to one S(2), one S(3), one S(7), and one S(8) atom. In the second K site, K(2) is bonded in a 5-coordinate geometry to one S(2), one S(5), one S(8), and two equivalent S(7) atoms. In the third K site, K(3) is bonded in a 4-coordinate geometry to one S(1), one S(4), one S(5), and one S(6) atom. In the fourth K site, K(4) is bonded in a 5-coordinate geometry to one S(4), one S(6), one S(7), and two equivalent S(5) atoms. Mg(1) is bonded in a distorted rectangular see-saw-like geometry to one S(1), one S(2), one S(3), and one S(4) atom. There are two inequivalent Nb sites. In the first Nb site, Nb(1) is bonded to one S(5), one S(6), one S(7), and one S(8) atom to form NbS4 tetrahedra that share edges with two equivalent Ag(1)S4 tetrahedra. In the second Nb site, Nb(2) is bonded in a tetrahedral geometry to one S(1), one S(2), one S(3), and one S(4) atom. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to one S(5), one S(6), one S(7), and one S(8) atom to form distorted AgS4 tetrahedra that share edges with two equivalent Nb(1)S4 tetrahedra. In the second Ag site, Ag(2) is bonded in a 4-coordinate geometry to one S(1), one S(2), one S(3), and one S(4) atom. There are eight inequivalent S sites. In the first S site, S(1) is bonded in a distorted see-saw-like geometry to one K(3), one Mg(1), one Nb(2), and one Ag(2) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to one K(1), one K(2), one Mg(1), one Nb(2), and one Ag(2) atom. In the third S site, S(3) is bonded in a distorted see-saw-like geometry to one K(1), one Mg(1), one Nb(2), and one Ag(2) atom. In the fourth S site, S(4) is bonded in a 5-coordinate geometry to one K(3), one K(4), one Mg(1), one Nb(2), and one Ag(2) atom. In the fifth S site, S(5) is bonded in a 6-coordinate geometry to one K(2), one K(3), two equivalent K(4), one Nb(1), and one Ag(1) atom. In the sixth S site, S(6) is bonded in a distorted rectangular see-saw-like geometry to one K(3), one K(4), one Nb(1), and one Ag(1) atom. In the seventh S site, S(7) is bonded in a 6-coordinate geometry to one K(1), one K(4), two equivalent K(2), one Nb(1), and one Ag(1) atom. In the eighth S site, S(8) is bonded in a distorted rectangular see-saw-like geometry to one K(1), one K(2), one Nb(1), and one Ag(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_K4MgNb2(AgS4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.937
_cell_length_b   7.404
_cell_length_c   12.843
_cell_angle_alpha   86.505
_cell_angle_beta   81.223
_cell_angle_gamma   66.332
_symmetry_Int_Tables_number   1
_cell_volume   511.008
_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
  K  K0  1  0.332  0.282  0.557  1.0
  K  K1  1  0.804  0.748  0.390  1.0
  K  K2  1  0.386  0.282  0.942  1.0
  K  K3  1  0.449  0.746  0.109  1.0
  Mg  Mg4  1  0.898  0.205  0.750  1.0
  Nb  Nb5  1  0.364  0.273  0.250  1.0
  Nb  Nb6  1  0.624  0.751  0.750  1.0
  Ag  Ag7  1  0.874  0.252  0.250  1.0
  Ag  Ag8  1  0.154  0.690  0.750  1.0
  S  S9  1  0.896  0.498  0.849  1.0
  S  S10  1  0.802  0.946  0.648  1.0
  S  S11  1  0.605  0.498  0.651  1.0
  S  S12  1  0.250  0.946  0.852  1.0
  S  S13  1  0.066  0.483  0.151  1.0
  S  S14  1  0.708  0.070  0.138  1.0
  S  S15  1  0.450  0.483  0.349  1.0
  S  S16  1  0.223  0.070  0.362  1.0
[/CIF]
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