data_K(GeAs)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.94
_cell_length_b   6.94
_cell_length_c   6.94
_cell_angle_alpha   140.08
_cell_angle_beta   140.08
_cell_angle_gamma   57.72
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K(GeAs)2
_chemical_formula_sum   'K1 Ge2 As2'
_cell_volume   136.25
_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  K4  1  0.0  0.0  0.0  1.0
  Ge  Ge2  1  0.0  0.37  0.04  1.0
  Ge  Ge3  1  0.37  0.0  0.04  1.0
  As  As0  1  0.0  0.0  0.95  1.0
  As  As1  1  0.0  0.0  0.2  1.0

data_K(GeAs)2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   6.7
_cell_length_b   6.7
_cell_length_c   6.94
_cell_angle_alpha   90.0
_cell_angle_beta   118.86
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   K(GeAs)2
_chemical_formula_sum   'K2 Ge4 As4'
_cell_volume   272.5
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  0.0  0.0  1.0
  Ge  Ge1  4  0.35  0.32  0.67  1.0
  As  As2  2  0.2  0.0  0.2  1.0
  As  As3  2  0.45  0.5  0.95  1.0

K Ge Ge As As