data_K2As
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.91
_cell_length_b   8.91
_cell_length_c   4.97
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2As
_chemical_formula_sum   'K6 As3'
_cell_volume   341.61
_cell_formula_units_Z   3
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  K3  1  0.26  0.0  0.49  1.0
  K  K4  1  0.87  0.96  0.49  1.0
  K  K5  1  0.32  0.75  0.49  1.0
  K  K6  1  0.29  0.0  0.0  1.0
  K  K7  1  0.36  0.58  0.0  1.0
  K  K8  1  0.81  0.13  0.0  1.0
  As  As0  1  0.0  0.14  0.49  1.0
  As  As1  1  0.45  0.57  0.49  1.0
  As  As2  1  0.0  0.0  0.0  1.0

data_K2As
_symmetry_space_group_name_H-M   P1
_cell_length_a   4.97
_cell_length_b   8.91
_cell_length_c   8.91
_cell_angle_alpha   120.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2As
_chemical_formula_sum   'K6 As3'
_cell_volume   341.61
_cell_formula_units_Z   3
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  0.0  0.81  0.13  1.0
  K  K1  1  0.0  0.36  0.58  1.0
  K  K2  1  0.0  0.29  0.0  1.0
  K  K3  1  0.49  0.26  0.0  1.0
  K  K4  1  0.49  0.32  0.75  1.0
  K  K5  1  0.49  0.87  0.96  1.0
  As  As6  1  0.0  0.0  0.0  1.0
  As  As7  1  0.49  0.0  0.14  1.0
  As  As8  1  0.49  0.45  0.57  1.0

K K K K K K As As As