data_Rb4PbO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.02
_cell_length_b   19.66
_cell_length_c   7.0
_cell_angle_alpha   90.0
_cell_angle_beta   112.86
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Rb4PbO4
_chemical_formula_sum   'Rb16 Pb4 O16'
_cell_volume   889.58
_cell_formula_units_Z   4
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  0.79  0.74  0.06  1.0
  Rb  Rb1  1  0.81  0.36  0.58  1.0
  Rb  Rb2  1  0.41  0.42  0.15  1.0
  Rb  Rb3  1  0.92  0.44  0.37  1.0
  Rb  Rb4  1  0.43  0.1  0.28  1.0
  Rb  Rb5  1  0.45  0.14  0.81  1.0
  Rb  Rb6  1  0.05  0.07  0.37  1.0
  Rb  Rb7  1  0.56  0.06  0.59  1.0
  Rb  Rb8  1  0.74  0.6  0.85  1.0
  Rb  Rb9  1  0.24  0.59  0.08  1.0
  Rb  Rb10  1  0.85  0.53  0.64  1.0
  Rb  Rb11  1  0.86  0.57  0.17  1.0
  Rb  Rb12  1  0.38  0.23  0.08  1.0
  Rb  Rb13  1  0.88  0.24  0.3  1.0
  Rb  Rb14  1  0.49  0.31  0.87  1.0
  Rb  Rb15  1  0.5  0.93  0.39  1.0
  Pb  Pb16  1  0.44  0.41  1.0  1.0
  Pb  Pb17  1  0.08  0.42  0.22  1.0
  Pb  Pb18  1  0.22  0.24  0.23  1.0
  Pb  Pb19  1  0.86  0.25  0.45  1.0
  O  O20  1  0.48  0.16  0.14  1.0
  O  O21  1  0.25  0.91  0.75  1.0
  O  O22  1  0.39  0.84  0.38  1.0
  O  O23  1  0.12  0.33  0.36  1.0
  O  O24  1  0.89  0.92  0.97  1.0
  O  O25  1  0.68  0.01  0.59  1.0
  O  O26  1  0.75  0.99  0.16  1.0
  O  O27  1  0.32  0.83  0.82  1.0
  O  O28  1  0.97  0.84  0.63  1.0
  O  O29  1  0.54  0.68  0.29  1.0
  O  O30  1  0.61  0.66  0.86  1.0
  O  O31  1  0.41  0.75  0.48  1.0
  O  O32  1  0.18  0.33  0.09  1.0
  O  O33  1  0.9  0.82  0.07  1.0
  O  O34  1  0.05  0.75  0.7  1.0
  O  O35  1  0.82  0.5  0.31  1.0

data_Rb4PbO4
_symmetry_space_group_name_H-M   P-1
_cell_length_a   7.0
_cell_length_b   7.02
_cell_length_c   19.66
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   112.86
_symmetry_Int_Tables_number   2
_chemical_formula_structural   Rb4PbO4
_chemical_formula_sum   'Rb16 Pb4 O16'
_cell_volume   889.58
_cell_formula_units_Z   4
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
  Rb  Rb0  2  0.06  0.29  0.76  1.0
  Rb  Rb1  2  0.08  0.73  0.91  1.0
  Rb  Rb2  2  0.15  0.77  0.1  1.0
  Rb  Rb3  2  0.15  0.91  0.74  1.0
  Rb  Rb4  2  0.17  0.36  0.6  1.0
  Rb  Rb5  2  0.36  0.66  0.03  1.0
  Rb  Rb6  2  0.37  0.41  0.73  1.0
  Rb  Rb7  2  0.42  0.7  0.19  1.0
  Pb  Pb8  2  0.0  0.07  0.91  1.0
  Pb  Pb9  2  0.23  0.71  0.92  1.0
  O  O10  2  0.07  0.39  0.34  1.0
  O  O11  2  0.09  0.67  0.17  1.0
  O  O12  2  0.14  0.97  0.0  1.0
  O  O13  2  0.16  0.25  0.51  1.0
  O  O14  2  0.25  0.26  0.41  1.0
  O  O15  2  0.37  0.54  0.67  1.0
  O  O16  2  0.41  0.82  0.51  1.0
  O  O17  2  0.48  0.9  0.42  1.0

Rb Rb Rb Rb Rb Rb Rb Rb Rb Rb Rb Rb Rb Rb Rb Rb Pb Pb Pb Pb O O O O O O O O O O O O O O O O