The crystal structure described by KMgAg2SbS4 crystallizes in the monoclinic C2 space group. K(1) is bonded in a 8-coordinate geometry to two equivalent Ag(1), two equivalent S(1), and four equivalent S(2) atoms. Mg(1) is bonded in a distorted see-saw-like geometry to two equivalent S(1) and two equivalent S(2) atoms. Ag(1) is bonded in a 3-coordinate geometry to one K(1), one S(2), and two equivalent S(1) atoms. Sb(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent S(1) and two equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to one K(1), one Mg(1), two equivalent Ag(1), and one Sb(1) atom. In the second S site, S(2) is bonded to two equivalent K(1), one Mg(1), one Ag(1), and one Sb(1) atom to form a mixture of distorted edge and corner-sharing SK2MgAgSb square pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_KMgAg2SbS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.402
_cell_length_b   7.402
_cell_length_c   6.307
_cell_angle_alpha   106.074
_cell_angle_beta   121.217
_cell_angle_gamma   108.814
_symmetry_Int_Tables_number   1
_cell_volume   233.929
_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  0.905  0.905  0.000  1.0
  Mg  Mg1  1  0.444  0.444  0.000  1.0
  Ag  Ag2  1  0.691  0.318  0.739  1.0
  Ag  Ag3  1  0.579  0.952  0.261  1.0
  Sb  Sb4  1  0.071  0.571  0.500  1.0
  S  S5  1  0.129  0.549  0.922  1.0
  S  S6  1  0.627  0.207  0.078  1.0
  S  S7  1  0.358  0.404  0.548  1.0
  S  S8  1  0.856  0.810  0.452  1.0
[/CIF]
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The crystal structure described by KMgAg2SbS4 crystallizes in the monoclinic C2 space group. K(1) is bonded in a 8-coordinate geometry to two equivalent Ag(1), two equivalent S(1), and four equivalent S(2) atoms. Mg(1) is bonded in a distorted see-saw-like geometry to two equivalent S(1) and two equivalent S(2) atoms. Ag(1) is bonded in a 3-coordinate geometry to one K(1), one S(2), and two equivalent S(1) atoms. Sb(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent S(1) and two equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 5-coordinate geometry to one K(1), one Mg(1), two equivalent Ag(1), and one Sb(1) atom. In the second S site, S(2) is bonded to two equivalent K(1), one Mg(1), one Ag(1), and one Sb(1) atom to form a mixture of distorted edge and corner-sharing SK2MgAgSb square pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_KMgAg2SbS4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.402
_cell_length_b   7.402
_cell_length_c   6.307
_cell_angle_alpha   106.074
_cell_angle_beta   121.217
_cell_angle_gamma   108.814
_symmetry_Int_Tables_number   1
_cell_volume   233.929
_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  0.905  0.905  0.000  1.0
  Mg  Mg1  1  0.444  0.444  0.000  1.0
  Ag  Ag2  1  0.691  0.318  0.739  1.0
  Ag  Ag3  1  0.579  0.952  0.261  1.0
  Sb  Sb4  1  0.071  0.571  0.500  1.0
  S  S5  1  0.129  0.549  0.922  1.0
  S  S6  1  0.627  0.207  0.078  1.0
  S  S7  1  0.358  0.404  0.548  1.0
  S  S8  1  0.856  0.810  0.452  1.0
[/CIF]
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