The crystal structure described by Pb5Al3F19 crystallizes in the tetragonal I4cm space group. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in an octahedral geometry to one F(3), one F(4), two equivalent F(1), and two equivalent F(2) atoms. In the second Al site, Al(2) is bonded to two equivalent F(5) and four equivalent F(6) atoms to form corner-sharing AlF6 octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one F(1), one F(2), one F(4), one F(7), and two equivalent F(6) atoms. In the second Pb site, Pb(2) is bonded in a 6-coordinate geometry to two equivalent F(7) and four equivalent F(3) atoms. There are seven inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 150 degrees geometry to one Al(1) and one Pb(1) atom. In the second F site, F(7) is bonded in a trigonal planar geometry to one Pb(2) and two equivalent Pb(1) atoms. In the third F site, F(2) is bonded in a distorted bent 120 degrees geometry to one Al(1) and one Pb(1) atom. In the fourth F site, F(3) is bonded in a distorted single-bond geometry to one Al(1) and two equivalent Pb(2) atoms. In the fifth F site, F(4) is bonded in a single-bond geometry to one Al(1) and two equivalent Pb(1) atoms. In the sixth F site, F(5) is bonded in a linear geometry to two equivalent Al(2) atoms. In the seventh F site, F(6) is bonded in a single-bond geometry to one Al(2) and two equivalent Pb(1) atoms. is represented by the CIF file [CIF]
data_Al3Pb5F19
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.845
_cell_length_b   10.845
_cell_length_c   10.845
_cell_angle_alpha   97.014
_cell_angle_beta   97.014
_cell_angle_gamma   139.092
_symmetry_Int_Tables_number   1
_cell_volume   782.533
_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
  Al  Al0  1  0.860  0.360  0.178  1.0
  Al  Al1  1  0.360  0.182  0.500  1.0
  Al  Al2  1  0.682  0.860  0.500  1.0
  Al  Al3  1  0.182  0.682  0.822  1.0
  Al  Al4  1  0.817  0.817  0.000  1.0
  Al  Al5  1  0.317  0.317  0.000  1.0
  Pb  Pb6  1  0.553  0.255  0.849  1.0
  Pb  Pb7  1  0.255  0.406  0.701  1.0
  Pb  Pb8  1  0.705  0.553  0.299  1.0
  Pb  Pb9  1  0.406  0.705  0.151  1.0
  Pb  Pb10  1  0.205  0.906  0.151  1.0
  Pb  Pb11  1  0.755  0.053  0.849  1.0
  Pb  Pb12  1  0.053  0.205  0.299  1.0
  Pb  Pb13  1  0.906  0.755  0.701  1.0
  Pb  Pb14  1  0.862  0.362  0.500  1.0
  Pb  Pb15  1  0.362  0.862  0.500  1.0
  F  F16  1  0.061  0.424  0.140  1.0
  F  F17  1  0.424  0.284  0.363  1.0
  F  F18  1  0.921  0.061  0.637  1.0
  F  F19  1  0.284  0.921  0.860  1.0
  F  F20  1  0.421  0.784  0.860  1.0
  F  F21  1  0.924  0.561  0.140  1.0
  F  F22  1  0.561  0.421  0.637  1.0
  F  F23  1  0.784  0.924  0.363  1.0
  F  F24  1  0.666  0.292  0.236  1.0
  F  F25  1  0.292  0.056  0.625  1.0
  F  F26  1  0.430  0.666  0.375  1.0
  F  F27  1  0.056  0.430  0.764  1.0
  F  F28  1  0.930  0.556  0.764  1.0
  F  F29  1  0.792  0.166  0.236  1.0
  F  F30  1  0.166  0.930  0.375  1.0
  F  F31  1  0.556  0.792  0.625  1.0
  F  F32  1  0.032  0.532  0.346  1.0
  F  F33  1  0.532  0.186  0.500  1.0
  F  F34  1  0.686  0.032  0.500  1.0
  F  F35  1  0.186  0.686  0.654  1.0
  F  F36  1  0.701  0.201  0.010  1.0
  F  F37  1  0.201  0.191  0.500  1.0
  F  F38  1  0.691  0.701  0.500  1.0
  F  F39  1  0.191  0.691  0.990  1.0
  F  F40  1  0.572  0.572  0.000  1.0
  F  F41  1  0.072  0.072  0.000  1.0
  F  F42  1  0.378  0.439  0.167  1.0
  F  F43  1  0.439  0.272  0.061  1.0
  F  F44  1  0.211  0.378  0.939  1.0
  F  F45  1  0.272  0.211  0.833  1.0
  F  F46  1  0.711  0.772  0.833  1.0
  F  F47  1  0.939  0.878  0.167  1.0
  F  F48  1  0.878  0.711  0.939  1.0
  F  F49  1  0.772  0.939  0.061  1.0
  F  F50  1  0.603  0.103  0.731  1.0
  F  F51  1  0.103  0.373  0.500  1.0
  F  F52  1  0.873  0.603  0.500  1.0
  F  F53  1  0.373  0.873  0.269  1.0
[/CIF]
.
The crystal structure described by Pb5Al3F19 crystallizes in the tetragonal I4cm space group. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in an octahedral geometry to one F(3), one F(4), two equivalent F(1), and two equivalent F(2) atoms. In the second Al site, Al(2) is bonded to two equivalent F(5) and four equivalent F(6) atoms to form corner-sharing AlF6 octahedra. The corner-sharing octahedra are not tilted. There are two inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one F(1), one F(2), one F(4), one F(7), and two equivalent F(6) atoms. In the second Pb site, Pb(2) is bonded in a 6-coordinate geometry to two equivalent F(7) and four equivalent F(3) atoms. There are seven inequivalent F sites. In the first F site, F(1) is bonded in a distorted bent 150 degrees geometry to one Al(1) and one Pb(1) atom. In the second F site, F(7) is bonded in a trigonal planar geometry to one Pb(2) and two equivalent Pb(1) atoms. In the third F site, F(2) is bonded in a distorted bent 120 degrees geometry to one Al(1) and one Pb(1) atom. In the fourth F site, F(3) is bonded in a distorted single-bond geometry to one Al(1) and two equivalent Pb(2) atoms. In the fifth F site, F(4) is bonded in a single-bond geometry to one Al(1) and two equivalent Pb(1) atoms. In the sixth F site, F(5) is bonded in a linear geometry to two equivalent Al(2) atoms. In the seventh F site, F(6) is bonded in a single-bond geometry to one Al(2) and two equivalent Pb(1) atoms. is represented by the CIF file [CIF]
data_Al3Pb5F19
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.845
_cell_length_b   10.845
_cell_length_c   10.845
_cell_angle_alpha   97.014
_cell_angle_beta   97.014
_cell_angle_gamma   139.092
_symmetry_Int_Tables_number   1
_cell_volume   782.533
_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
  Al  Al0  1  0.860  0.360  0.178  1.0
  Al  Al1  1  0.360  0.182  0.500  1.0
  Al  Al2  1  0.682  0.860  0.500  1.0
  Al  Al3  1  0.182  0.682  0.822  1.0
  Al  Al4  1  0.817  0.817  0.000  1.0
  Al  Al5  1  0.317  0.317  0.000  1.0
  Pb  Pb6  1  0.553  0.255  0.849  1.0
  Pb  Pb7  1  0.255  0.406  0.701  1.0
  Pb  Pb8  1  0.705  0.553  0.299  1.0
  Pb  Pb9  1  0.406  0.705  0.151  1.0
  Pb  Pb10  1  0.205  0.906  0.151  1.0
  Pb  Pb11  1  0.755  0.053  0.849  1.0
  Pb  Pb12  1  0.053  0.205  0.299  1.0
  Pb  Pb13  1  0.906  0.755  0.701  1.0
  Pb  Pb14  1  0.862  0.362  0.500  1.0
  Pb  Pb15  1  0.362  0.862  0.500  1.0
  F  F16  1  0.061  0.424  0.140  1.0
  F  F17  1  0.424  0.284  0.363  1.0
  F  F18  1  0.921  0.061  0.637  1.0
  F  F19  1  0.284  0.921  0.860  1.0
  F  F20  1  0.421  0.784  0.860  1.0
  F  F21  1  0.924  0.561  0.140  1.0
  F  F22  1  0.561  0.421  0.637  1.0
  F  F23  1  0.784  0.924  0.363  1.0
  F  F24  1  0.666  0.292  0.236  1.0
  F  F25  1  0.292  0.056  0.625  1.0
  F  F26  1  0.430  0.666  0.375  1.0
  F  F27  1  0.056  0.430  0.764  1.0
  F  F28  1  0.930  0.556  0.764  1.0
  F  F29  1  0.792  0.166  0.236  1.0
  F  F30  1  0.166  0.930  0.375  1.0
  F  F31  1  0.556  0.792  0.625  1.0
  F  F32  1  0.032  0.532  0.346  1.0
  F  F33  1  0.532  0.186  0.500  1.0
  F  F34  1  0.686  0.032  0.500  1.0
  F  F35  1  0.186  0.686  0.654  1.0
  F  F36  1  0.701  0.201  0.010  1.0
  F  F37  1  0.201  0.191  0.500  1.0
  F  F38  1  0.691  0.701  0.500  1.0
  F  F39  1  0.191  0.691  0.990  1.0
  F  F40  1  0.572  0.572  0.000  1.0
  F  F41  1  0.072  0.072  0.000  1.0
  F  F42  1  0.378  0.439  0.167  1.0
  F  F43  1  0.439  0.272  0.061  1.0
  F  F44  1  0.211  0.378  0.939  1.0
  F  F45  1  0.272  0.211  0.833  1.0
  F  F46  1  0.711  0.772  0.833  1.0
  F  F47  1  0.939  0.878  0.167  1.0
  F  F48  1  0.878  0.711  0.939  1.0
  F  F49  1  0.772  0.939  0.061  1.0
  F  F50  1  0.603  0.103  0.731  1.0
  F  F51  1  0.103  0.373  0.500  1.0
  F  F52  1  0.873  0.603  0.500  1.0
  F  F53  1  0.373  0.873  0.269  1.0
[/CIF]
.