data_KAg
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.6
_cell_length_b   6.6
_cell_length_c   4.97
_cell_angle_alpha   90.64
_cell_angle_beta   90.64
_cell_angle_gamma   42.86
_symmetry_Int_Tables_number   1
_chemical_formula_structural   KAg
_chemical_formula_sum   'K2 Ag2'
_cell_volume   147.35
_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  K2  1  0.35  0.0  0.21  1.0
  K  K3  1  0.89  0.0  0.75  1.0
  Ag  Ag0  1  0.56  0.0  0.71  1.0
  Ag  Ag1  1  0.67  0.0  0.25  1.0

data_KAg
_symmetry_space_group_name_H-M   P-1
_cell_length_a   4.83
_cell_length_b   4.97
_cell_length_c   6.6
_cell_angle_alpha   90.64
_cell_angle_beta   111.43
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   KAg
_chemical_formula_sum   'K2 Ag2'
_cell_volume   147.35
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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  2  0.0  0.27  0.77  1.0
  Ag  Ag1  2  0.0  0.23  0.44  1.0

K K Ag Ag
K K Ag Ag 0 3 o o o 1 2 o o o 2 3 o o o 