data_Rb2SnAs2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.75
_cell_length_b   8.75
_cell_length_c   8.75
_cell_angle_alpha   129.0
_cell_angle_beta   72.19
_cell_angle_gamma   132.58
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Rb2SnAs2
_chemical_formula_sum   'Rb4 Sn2 As4'
_cell_volume   374.32
_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
  Rb  Rb4  1  0.96  0.06  0.0  1.0
  Rb  Rb5  1  0.57  0.06  0.52  1.0
  Rb  Rb6  1  0.19  0.01  0.0  1.0
  Rb  Rb7  1  0.81  0.01  0.52  1.0
  Sn  Sn8  1  0.0  0.0  0.76  1.0
  Sn  Sn9  1  0.0  0.0  0.28  1.0
  As  As0  1  0.39  0.53  0.0  1.0
  As  As1  1  0.37  0.46  0.0  1.0
  As  As2  1  0.39  0.6  0.52  1.0
  As  As3  1  0.37  0.54  0.52  1.0

data_Rb2SnAs2
_symmetry_space_group_name_H-M   P1
_cell_length_a   7.03
_cell_length_b   7.53
_cell_length_c   8.75
_cell_angle_alpha   115.5
_cell_angle_beta   113.71
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Rb2SnAs2
_chemical_formula_sum   'Rb4 Sn2 As4'
_cell_volume   374.32
_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
  Rb  Rb0  1  0.01  -0.0  0.81  1.0
  Rb  Rb1  1  0.06  -0.0  0.1  1.0
  Rb  Rb2  1  0.49  0.48  0.68  1.0
  Rb  Rb3  1  0.54  0.48  0.97  1.0
  Sn  Sn4  1  0.24  0.24  0.24  1.0
  Sn  Sn5  1  0.72  0.72  0.72  1.0
  As  As6  1  0.02  0.48  0.64  1.0
  As  As7  1  0.09  0.48  0.7  1.0
  As  As8  1  0.46  -0.0  0.09  1.0
  As  As9  1  0.53  -0.0  0.14  1.0

Rb Rb Rb Rb Sn Sn As As As As