The material described by NdPb7F17 crystallizes in the triclinic P1 space group. Nd(1) is bonded in a 10-coordinate geometry to one F(11), one F(17), two equivalent F(16), three equivalent F(14), and three equivalent F(15) atoms. There are seven inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one F(3), two equivalent F(17), and three equivalent F(1) atoms. In the second Pb site, Pb(2) is bonded in a body-centered cubic geometry to one F(1), one F(6), three equivalent F(3), and three equivalent F(4) atoms. In the third Pb site, Pb(3) is bonded in a body-centered cubic geometry to one F(4), one F(8), three equivalent F(2), and three equivalent F(6) atoms. In the fourth Pb site, Pb(4) is bonded in a body-centered cubic geometry to one F(12), one F(5), three equivalent F(10), and three equivalent F(7) atoms. In the fifth Pb site, Pb(5) is bonded in a body-centered cubic geometry to one F(10), one F(2), three equivalent F(5), and three equivalent F(8) atoms. In the sixth Pb site, Pb(6) is bonded in a body-centered cubic geometry to one F(13), one F(7), three equivalent F(12), and three equivalent F(9) atoms. In the seventh Pb site, Pb(7) is bonded in a body-centered cubic geometry to one F(15), one F(9), three equivalent F(11), and three equivalent F(13) atoms. There are seventeen inequivalent F sites. In the first F site, F(1) is bonded in a 4-coordinate geometry to one Pb(2) and three equivalent Pb(1) atoms. In the second F site, F(2) is bonded to one Pb(5) and three equivalent Pb(3) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the third F site, F(3) is bonded to one Pb(1) and three equivalent Pb(2) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the fourth F site, F(4) is bonded to one Pb(3) and three equivalent Pb(2) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the fifth F site, F(5) is bonded to one Pb(4) and three equivalent Pb(5) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the sixth F site, F(6) is bonded to one Pb(2) and three equivalent Pb(3) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the seventh F site, F(7) is bonded to one Pb(6) and three equivalent Pb(4) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the eighth F site, F(8) is bonded to one Pb(3) and three equivalent Pb(5) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the ninth F site, F(9) is bonded to one Pb(7) and three equivalent Pb(6) atoms to form FPb4 tetrahedra that share  a cornercorner with one F(15)Nd3Pb tetrahedra, corners with three equivalent F(11)NdPb3 tetrahedra, corners with three equivalent F(12)Pb4 tetrahedra, corners with three equivalent F(7)Pb4 tetrahedra, corners with six equivalent F(9)Pb4 tetrahedra, edges with three equivalent F(12)Pb4 tetrahedra, and edges with three equivalent F(13)Pb4 tetrahedra. In the tenth F site, F(10) is bonded to one Pb(5) and three equivalent Pb(4) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the eleventh F site, F(11) is bonded to one Nd(1) and three equivalent Pb(7) atoms to form distorted FNdPb3 tetrahedra that share corners with three equivalent F(13)Pb4 tetrahedra, corners with three equivalent F(9)Pb4 tetrahedra, corners with six equivalent F(11)NdPb3 tetrahedra, edges with three equivalent F(15)Nd3Pb tetrahedra, and edges with three equivalent F(13)Pb4 tetrahedra. In the twelfth F site, F(12) is bonded to one Pb(4) and three equivalent Pb(6) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the thirteenth F site, F(13) is bonded to one Pb(6) and three equivalent Pb(7) atoms to form FPb4 tetrahedra that share  a cornercorner with one F(7)Pb4 tetrahedra, corners with three equivalent F(15)Nd3Pb tetrahedra, corners with three equivalent F(11)NdPb3 tetrahedra, corners with three equivalent F(12)Pb4 tetrahedra, corners with six equivalent F(13)Pb4 tetrahedra, edges with three equivalent F(11)NdPb3 tetrahedra, and edges with three equivalent F(9)Pb4 tetrahedra. In the fourteenth F site, F(14) is bonded in a trigonal planar geometry to three equivalent Nd(1) atoms. In the fifteenth F site, F(15) is bonded to three equivalent Nd(1) and one Pb(7) atom to form FNd3Pb tetrahedra that share  a cornercorner with one F(9)Pb4 tetrahedra, corners with three equivalent F(13)Pb4 tetrahedra, corners with six equivalent F(15)Nd3Pb tetrahedra, and edges with three equivalent F(11)NdPb3 tetrahedra. In the sixteenth F site, F(16) is bonded in a distorted water-like geometry to two equivalent Nd(1) atoms. In the seventeenth F site, F(17) is bonded in a trigonal non-coplanar geometry to one Nd(1) and two equivalent Pb(1) atoms. is represented by the CIF file [CIF]
data_NdPb7F17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.190
_cell_length_b   4.222
_cell_length_c   34.027
_cell_angle_alpha   60.572
_cell_angle_beta   60.401
_cell_angle_gamma   60.316
_symmetry_Int_Tables_number   1
_cell_volume   429.780
_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
  Nd  Nd0  1  0.962  0.997  0.881  1.0
  Pb  Pb1  1  0.994  0.984  0.001  1.0
  Pb  Pb2  1  0.927  0.036  0.128  1.0
  Pb  Pb3  1  0.957  0.011  0.253  1.0
  Pb  Pb4  1  0.987  0.993  0.503  1.0
  Pb  Pb5  1  0.981  0.997  0.378  1.0
  Pb  Pb6  1  0.988  0.994  0.628  1.0
  Pb  Pb7  1  0.981  0.993  0.754  1.0
  F  F8  1  0.189  0.291  0.037  1.0
  F  F9  1  0.209  0.257  0.286  1.0
  F  F10  1  0.689  0.784  0.095  1.0
  F  F11  1  0.178  0.280  0.160  1.0
  F  F12  1  0.231  0.246  0.410  1.0
  F  F13  1  0.705  0.760  0.223  1.0
  F  F14  1  0.233  0.241  0.536  1.0
  F  F15  1  0.731  0.746  0.347  1.0
  F  F16  1  0.238  0.247  0.659  1.0
  F  F17  1  0.737  0.740  0.472  1.0
  F  F18  1  0.205  0.228  0.794  1.0
  F  F19  1  0.741  0.743  0.596  1.0
  F  F20  1  0.727  0.734  0.725  1.0
  F  F21  1  0.286  0.353  0.883  1.0
  F  F22  1  0.744  0.772  0.841  1.0
  F  F23  1  0.478  0.632  0.928  1.0
  F  F24  1  0.713  0.822  0.968  1.0
[/CIF]
.
The material described by NdPb7F17 crystallizes in the triclinic P1 space group. Nd(1) is bonded in a 10-coordinate geometry to one F(11), one F(17), two equivalent F(16), three equivalent F(14), and three equivalent F(15) atoms. There are seven inequivalent Pb sites. In the first Pb site, Pb(1) is bonded in a 6-coordinate geometry to one F(3), two equivalent F(17), and three equivalent F(1) atoms. In the second Pb site, Pb(2) is bonded in a body-centered cubic geometry to one F(1), one F(6), three equivalent F(3), and three equivalent F(4) atoms. In the third Pb site, Pb(3) is bonded in a body-centered cubic geometry to one F(4), one F(8), three equivalent F(2), and three equivalent F(6) atoms. In the fourth Pb site, Pb(4) is bonded in a body-centered cubic geometry to one F(12), one F(5), three equivalent F(10), and three equivalent F(7) atoms. In the fifth Pb site, Pb(5) is bonded in a body-centered cubic geometry to one F(10), one F(2), three equivalent F(5), and three equivalent F(8) atoms. In the sixth Pb site, Pb(6) is bonded in a body-centered cubic geometry to one F(13), one F(7), three equivalent F(12), and three equivalent F(9) atoms. In the seventh Pb site, Pb(7) is bonded in a body-centered cubic geometry to one F(15), one F(9), three equivalent F(11), and three equivalent F(13) atoms. There are seventeen inequivalent F sites. In the first F site, F(1) is bonded in a 4-coordinate geometry to one Pb(2) and three equivalent Pb(1) atoms. In the second F site, F(2) is bonded to one Pb(5) and three equivalent Pb(3) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the third F site, F(3) is bonded to one Pb(1) and three equivalent Pb(2) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the fourth F site, F(4) is bonded to one Pb(3) and three equivalent Pb(2) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the fifth F site, F(5) is bonded to one Pb(4) and three equivalent Pb(5) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the sixth F site, F(6) is bonded to one Pb(2) and three equivalent Pb(3) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the seventh F site, F(7) is bonded to one Pb(6) and three equivalent Pb(4) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the eighth F site, F(8) is bonded to one Pb(3) and three equivalent Pb(5) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the ninth F site, F(9) is bonded to one Pb(7) and three equivalent Pb(6) atoms to form FPb4 tetrahedra that share  a cornercorner with one F(15)Nd3Pb tetrahedra, corners with three equivalent F(11)NdPb3 tetrahedra, corners with three equivalent F(12)Pb4 tetrahedra, corners with three equivalent F(7)Pb4 tetrahedra, corners with six equivalent F(9)Pb4 tetrahedra, edges with three equivalent F(12)Pb4 tetrahedra, and edges with three equivalent F(13)Pb4 tetrahedra. In the tenth F site, F(10) is bonded to one Pb(5) and three equivalent Pb(4) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the eleventh F site, F(11) is bonded to one Nd(1) and three equivalent Pb(7) atoms to form distorted FNdPb3 tetrahedra that share corners with three equivalent F(13)Pb4 tetrahedra, corners with three equivalent F(9)Pb4 tetrahedra, corners with six equivalent F(11)NdPb3 tetrahedra, edges with three equivalent F(15)Nd3Pb tetrahedra, and edges with three equivalent F(13)Pb4 tetrahedra. In the twelfth F site, F(12) is bonded to one Pb(4) and three equivalent Pb(6) atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra. In the thirteenth F site, F(13) is bonded to one Pb(6) and three equivalent Pb(7) atoms to form FPb4 tetrahedra that share  a cornercorner with one F(7)Pb4 tetrahedra, corners with three equivalent F(15)Nd3Pb tetrahedra, corners with three equivalent F(11)NdPb3 tetrahedra, corners with three equivalent F(12)Pb4 tetrahedra, corners with six equivalent F(13)Pb4 tetrahedra, edges with three equivalent F(11)NdPb3 tetrahedra, and edges with three equivalent F(9)Pb4 tetrahedra. In the fourteenth F site, F(14) is bonded in a trigonal planar geometry to three equivalent Nd(1) atoms. In the fifteenth F site, F(15) is bonded to three equivalent Nd(1) and one Pb(7) atom to form FNd3Pb tetrahedra that share  a cornercorner with one F(9)Pb4 tetrahedra, corners with three equivalent F(13)Pb4 tetrahedra, corners with six equivalent F(15)Nd3Pb tetrahedra, and edges with three equivalent F(11)NdPb3 tetrahedra. In the sixteenth F site, F(16) is bonded in a distorted water-like geometry to two equivalent Nd(1) atoms. In the seventeenth F site, F(17) is bonded in a trigonal non-coplanar geometry to one Nd(1) and two equivalent Pb(1) atoms. is represented by the CIF file [CIF]
data_NdPb7F17
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.190
_cell_length_b   4.222
_cell_length_c   34.027
_cell_angle_alpha   60.572
_cell_angle_beta   60.401
_cell_angle_gamma   60.316
_symmetry_Int_Tables_number   1
_cell_volume   429.780
_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
  Nd  Nd0  1  0.962  0.997  0.881  1.0
  Pb  Pb1  1  0.994  0.984  0.001  1.0
  Pb  Pb2  1  0.927  0.036  0.128  1.0
  Pb  Pb3  1  0.957  0.011  0.253  1.0
  Pb  Pb4  1  0.987  0.993  0.503  1.0
  Pb  Pb5  1  0.981  0.997  0.378  1.0
  Pb  Pb6  1  0.988  0.994  0.628  1.0
  Pb  Pb7  1  0.981  0.993  0.754  1.0
  F  F8  1  0.189  0.291  0.037  1.0
  F  F9  1  0.209  0.257  0.286  1.0
  F  F10  1  0.689  0.784  0.095  1.0
  F  F11  1  0.178  0.280  0.160  1.0
  F  F12  1  0.231  0.246  0.410  1.0
  F  F13  1  0.705  0.760  0.223  1.0
  F  F14  1  0.233  0.241  0.536  1.0
  F  F15  1  0.731  0.746  0.347  1.0
  F  F16  1  0.238  0.247  0.659  1.0
  F  F17  1  0.737  0.740  0.472  1.0
  F  F18  1  0.205  0.228  0.794  1.0
  F  F19  1  0.741  0.743  0.596  1.0
  F  F20  1  0.727  0.734  0.725  1.0
  F  F21  1  0.286  0.353  0.883  1.0
  F  F22  1  0.744  0.772  0.841  1.0
  F  F23  1  0.478  0.632  0.928  1.0
  F  F24  1  0.713  0.822  0.968  1.0
[/CIF]
.