The structure described by K2Ag3Sb3S7 crystallizes in the orthorhombic Cmc2_1 space group. K(1) is bonded in a 10-coordinate geometry to one Ag(2), one S(4), four equivalent S(2), and four equivalent S(3) atoms. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent S(1) and two equivalent S(4) atoms. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one K(1), one S(1), one S(3), and one S(4) atom. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a distorted T-shaped geometry to one S(3) and two equivalent S(2) atoms. In the second Sb site, Sb(2) is bonded in a distorted T-shaped geometry to one S(1) and two equivalent S(4) atoms. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to two equivalent Ag(1), two equivalent Ag(2), and one Sb(2) atom. In the second S site, S(2) is bonded to four equivalent K(1) and two equivalent Sb(1) atoms to form distorted SK4Sb2 octahedra that share corners with four equivalent S(2)K4Sb2 octahedra, corners with six equivalent S(3)K4AgSb octahedra, edges with two equivalent S(2)K4Sb2 octahedra, faces with two equivalent S(2)K4Sb2 octahedra, and faces with four equivalent S(3)K4AgSb octahedra. The corner-sharing octahedral tilt angles range from 39-58°. In the third S site, S(3) is bonded to four equivalent K(1), one Ag(2), and one Sb(1) atom to form distorted SK4AgSb octahedra that share corners with four equivalent S(3)K4AgSb octahedra, corners with six equivalent S(2)K4Sb2 octahedra, edges with four equivalent S(3)K4AgSb octahedra, and faces with four equivalent S(2)K4Sb2 octahedra. The corner-sharing octahedral tilt angles range from 31-58°. In the fourth S site, S(4) is bonded in a 4-coordinate geometry to one K(1), one Ag(1), one Ag(2), and one Sb(2) atom. is represented by the CIF card [CIF]
data_K2Ag3Sb3S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.487
_cell_length_b   13.487
_cell_length_c   6.920
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   140.244
_symmetry_Int_Tables_number   1
_cell_volume   805.087
_cell_formula_units_Z   2
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  0.484  0.897  0.685  1.0
  K  K1  1  0.897  0.484  0.685  1.0
  K  K2  1  0.516  0.103  0.185  1.0
  K  K3  1  0.103  0.516  0.185  1.0
  Ag  Ag4  1  0.680  0.680  0.374  1.0
  Ag  Ag5  1  0.320  0.320  0.874  1.0
  Ag  Ag6  1  0.402  0.583  0.628  1.0
  Ag  Ag7  1  0.583  0.402  0.628  1.0
  Ag  Ag8  1  0.598  0.417  0.128  1.0
  Ag  Ag9  1  0.417  0.598  0.128  1.0
  Sb  Sb10  1  0.982  0.238  0.685  1.0
  Sb  Sb11  1  0.238  0.982  0.685  1.0
  Sb  Sb12  1  0.018  0.762  0.185  1.0
  Sb  Sb13  1  0.762  0.018  0.185  1.0
  Sb  Sb14  1  0.842  0.842  0.829  1.0
  Sb  Sb15  1  0.158  0.158  0.329  1.0
  S  S16  1  0.619  0.619  0.028  1.0
  S  S17  1  0.381  0.381  0.528  1.0
  S  S18  1  0.818  0.194  0.427  1.0
  S  S19  1  0.194  0.818  0.427  1.0
  S  S20  1  0.182  0.806  0.927  1.0
  S  S21  1  0.806  0.182  0.927  1.0
  S  S22  1  0.176  0.518  0.691  1.0
  S  S23  1  0.518  0.176  0.691  1.0
  S  S24  1  0.824  0.482  0.191  1.0
  S  S25  1  0.482  0.824  0.191  1.0
  S  S26  1  0.842  0.693  0.619  1.0
  S  S27  1  0.693  0.842  0.619  1.0
  S  S28  1  0.158  0.307  0.119  1.0
  S  S29  1  0.307  0.158  0.119  1.0
[/CIF]
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The structure described by K2Ag3Sb3S7 crystallizes in the orthorhombic Cmc2_1 space group. K(1) is bonded in a 10-coordinate geometry to one Ag(2), one S(4), four equivalent S(2), and four equivalent S(3) atoms. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent S(1) and two equivalent S(4) atoms. In the second Ag site, Ag(2) is bonded in a 3-coordinate geometry to one K(1), one S(1), one S(3), and one S(4) atom. There are two inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a distorted T-shaped geometry to one S(3) and two equivalent S(2) atoms. In the second Sb site, Sb(2) is bonded in a distorted T-shaped geometry to one S(1) and two equivalent S(4) atoms. There are four inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to two equivalent Ag(1), two equivalent Ag(2), and one Sb(2) atom. In the second S site, S(2) is bonded to four equivalent K(1) and two equivalent Sb(1) atoms to form distorted SK4Sb2 octahedra that share corners with four equivalent S(2)K4Sb2 octahedra, corners with six equivalent S(3)K4AgSb octahedra, edges with two equivalent S(2)K4Sb2 octahedra, faces with two equivalent S(2)K4Sb2 octahedra, and faces with four equivalent S(3)K4AgSb octahedra. The corner-sharing octahedral tilt angles range from 39-58°. In the third S site, S(3) is bonded to four equivalent K(1), one Ag(2), and one Sb(1) atom to form distorted SK4AgSb octahedra that share corners with four equivalent S(3)K4AgSb octahedra, corners with six equivalent S(2)K4Sb2 octahedra, edges with four equivalent S(3)K4AgSb octahedra, and faces with four equivalent S(2)K4Sb2 octahedra. The corner-sharing octahedral tilt angles range from 31-58°. In the fourth S site, S(4) is bonded in a 4-coordinate geometry to one K(1), one Ag(1), one Ag(2), and one Sb(2) atom. is represented by the CIF card [CIF]
data_K2Ag3Sb3S7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.487
_cell_length_b   13.487
_cell_length_c   6.920
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   140.244
_symmetry_Int_Tables_number   1
_cell_volume   805.087
_cell_formula_units_Z   2
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  0.484  0.897  0.685  1.0
  K  K1  1  0.897  0.484  0.685  1.0
  K  K2  1  0.516  0.103  0.185  1.0
  K  K3  1  0.103  0.516  0.185  1.0
  Ag  Ag4  1  0.680  0.680  0.374  1.0
  Ag  Ag5  1  0.320  0.320  0.874  1.0
  Ag  Ag6  1  0.402  0.583  0.628  1.0
  Ag  Ag7  1  0.583  0.402  0.628  1.0
  Ag  Ag8  1  0.598  0.417  0.128  1.0
  Ag  Ag9  1  0.417  0.598  0.128  1.0
  Sb  Sb10  1  0.982  0.238  0.685  1.0
  Sb  Sb11  1  0.238  0.982  0.685  1.0
  Sb  Sb12  1  0.018  0.762  0.185  1.0
  Sb  Sb13  1  0.762  0.018  0.185  1.0
  Sb  Sb14  1  0.842  0.842  0.829  1.0
  Sb  Sb15  1  0.158  0.158  0.329  1.0
  S  S16  1  0.619  0.619  0.028  1.0
  S  S17  1  0.381  0.381  0.528  1.0
  S  S18  1  0.818  0.194  0.427  1.0
  S  S19  1  0.194  0.818  0.427  1.0
  S  S20  1  0.182  0.806  0.927  1.0
  S  S21  1  0.806  0.182  0.927  1.0
  S  S22  1  0.176  0.518  0.691  1.0
  S  S23  1  0.518  0.176  0.691  1.0
  S  S24  1  0.824  0.482  0.191  1.0
  S  S25  1  0.482  0.824  0.191  1.0
  S  S26  1  0.842  0.693  0.619  1.0
  S  S27  1  0.693  0.842  0.619  1.0
  S  S28  1  0.158  0.307  0.119  1.0
  S  S29  1  0.307  0.158  0.119  1.0
[/CIF]
.