data_KMnAg2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.09
_cell_length_b   5.09
_cell_length_c   5.09
_cell_angle_alpha   60.0
_cell_angle_beta   60.0
_cell_angle_gamma   60.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KMnAg2
_chemical_formula_sum   'K1 Mn1 Ag2'
_cell_volume   93.18
_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  K2  1  0.0  0.0  0.0  1.0
  Mn  Mn3  1  0.6  0.6  0.6  1.0
  Ag  Ag0  1  0.8  0.8  0.8  1.0
  Ag  Ag1  1  0.4  0.4  0.4  1.0

data_KMnAg2
_symmetry_space_group_name_H-M   R3m
_cell_length_a   5.09
_cell_length_b   5.09
_cell_length_c   12.46
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   KMnAg2
_chemical_formula_sum   'K3 Mn3 Ag6'
_cell_volume   279.55
_cell_formula_units_Z   3
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+1/3, y+2/3, z+2/3'
  8  '-y+1/3, x-y+2/3, z+2/3'
  9  '-x+y+1/3, -x+2/3, z+2/3'
  10  '-y+1/3, -x+2/3, z+2/3'
  11  '-x+y+1/3, y+2/3, z+2/3'
  12  'x+1/3, x-y+2/3, z+2/3'
  13  'x+2/3, y+1/3, z+1/3'
  14  '-y+2/3, x-y+1/3, z+1/3'
  15  '-x+y+2/3, -x+1/3, z+1/3'
  16  '-y+2/3, -x+1/3, z+1/3'
  17  '-x+y+2/3, y+1/3, z+1/3'
  18  'x+2/3, x-y+1/3, z+1/3'
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  3  0.0  0.0  0.0  1.0
  Mn  Mn1  3  0.0  0.0  0.4  1.0
  Ag  Ag2  3  0.0  0.0  0.2  1.0
  Ag  Ag3  3  0.0  0.0  0.6  1.0

K Mn Ag Ag
KMnAg2 crystallizes in the trigonal R3m space group. K(1) is bonded in a 10-coordinate geometry to three equivalent Mn(1), three equivalent Ag(2), and four equivalent Ag(1) atoms. All K(1)-Mn(1) bond lengths are 3.06 Å. All K(1)-Ag(2) bond lengths are 3.04 Å. There is one shorter (2.50 Å) and three longer (3.37 Å) K(1)-Ag(1) bond lengths. Mn(1) is bonded in a 5-coordinate geometry to three equivalent K(1), one Ag(1), and one Ag(2) atom. The Mn(1)-Ag(1) bond length is 2.50 Å. The Mn(1)-Ag(2) bond length is 2.50 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a distorted linear geometry to four equivalent K(1) and one Mn(1) atom. In the second Ag site, Ag(2) is bonded to three equivalent K(1) and one Mn(1) atom to form distorted corner-sharing AgK3Mn tetrahedra.