The compound described by Pb11(CN5)2 crystallizes in the tetragonal P4_2/mnm space group. There are four inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to two equivalent N(4) and four equivalent N(1) atoms to form edge-sharing PbN6 octahedra. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one N(1) and two equivalent N(2) atoms. In the third Pb site, Pb(3) is bonded in a rectangular see-saw-like geometry to two equivalent N(1) and two equivalent N(2) atoms. In the fourth Pb site, Pb(4) is bonded in a 3-coordinate geometry to one N(3) and two equivalent N(2) atoms. C(1) is bonded in a linear geometry to one N(3) and one N(4) atom. There are five inequivalent N sites. In the first N site, N(3) is bonded in a single-bond geometry to two equivalent Pb(4) and one C(1) atom. In the second N site, N(4) is bonded in a single-bond geometry to one Pb(1) and one C(1) atom. In the third N site, N(4) is bonded in a single-bond geometry to one Pb(1) and one C(1) atom. In the fourth N site, N(1) is bonded to two equivalent Pb(1), two equivalent Pb(2), and two equivalent Pb(3) atoms to form NPb6 octahedra that share corners with two equivalent N(1)Pb6 octahedra, edges with three equivalent N(1)Pb6 octahedra, and edges with four equivalent N(2)Pb5 square pyramids. The corner-sharing octahedra are not tilted. In the fifth N site, N(2) is bonded to one Pb(3), two equivalent Pb(2), and two equivalent Pb(4) atoms to form NPb5 square pyramids that share  a cornercorner with one N(2)Pb5 square pyramid, edges with two equivalent N(1)Pb6 octahedra, and edges with two equivalent N(2)Pb5 square pyramids. is represented by the CIF card [CIF]
data_Pb11(CN5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   16.232
_cell_length_b   16.232
_cell_length_c   3.606
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   949.946
_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
  Pb  Pb0  1  0.500  0.500  0.500  1.0
  Pb  Pb1  1  0.000  0.000  0.000  1.0
  Pb  Pb2  1  0.989  0.794  0.500  1.0
  Pb  Pb3  1  0.011  0.206  0.500  1.0
  Pb  Pb4  1  0.511  0.294  0.000  1.0
  Pb  Pb5  1  0.489  0.706  0.000  1.0
  Pb  Pb6  1  0.794  0.989  0.500  1.0
  Pb  Pb7  1  0.206  0.011  0.500  1.0
  Pb  Pb8  1  0.294  0.511  0.000  1.0
  Pb  Pb9  1  0.706  0.489  0.000  1.0
  Pb  Pb10  1  0.667  0.667  0.500  1.0
  Pb  Pb11  1  0.333  0.333  0.500  1.0
  Pb  Pb12  1  0.833  0.167  0.000  1.0
  Pb  Pb13  1  0.167  0.833  0.000  1.0
  Pb  Pb14  1  0.366  0.873  0.500  1.0
  Pb  Pb15  1  0.634  0.127  0.500  1.0
  Pb  Pb16  1  0.134  0.373  0.000  1.0
  Pb  Pb17  1  0.866  0.627  0.000  1.0
  Pb  Pb18  1  0.873  0.366  0.500  1.0
  Pb  Pb19  1  0.127  0.634  0.500  1.0
  Pb  Pb20  1  0.373  0.134  0.000  1.0
  Pb  Pb21  1  0.627  0.866  0.000  1.0
  C  C22  1  0.326  0.674  0.500  1.0
  C  C23  1  0.674  0.326  0.500  1.0
  C  C24  1  0.174  0.174  0.000  1.0
  C  C25  1  0.826  0.826  0.000  1.0
  N  N26  1  0.088  0.912  0.500  1.0
  N  N27  1  0.912  0.088  0.500  1.0
  N  N28  1  0.412  0.412  0.000  1.0
  N  N29  1  0.588  0.588  0.000  1.0
  N  N30  1  0.427  0.212  0.500  1.0
  N  N31  1  0.573  0.788  0.500  1.0
  N  N32  1  0.073  0.712  0.000  1.0
  N  N33  1  0.927  0.288  0.000  1.0
  N  N34  1  0.212  0.427  0.500  1.0
  N  N35  1  0.788  0.573  0.500  1.0
  N  N36  1  0.712  0.073  0.000  1.0
  N  N37  1  0.288  0.927  0.000  1.0
  N  N38  1  0.272  0.728  0.500  1.0
  N  N39  1  0.728  0.272  0.500  1.0
  N  N40  1  0.228  0.228  0.000  1.0
  N  N41  1  0.772  0.772  0.000  1.0
  N  N42  1  0.380  0.620  0.500  1.0
  N  N43  1  0.620  0.380  0.500  1.0
  N  N44  1  0.120  0.120  0.000  1.0
  N  N45  1  0.880  0.880  0.000  1.0
[/CIF]
.
The compound described by Pb11(CN5)2 crystallizes in the tetragonal P4_2/mnm space group. There are four inequivalent Pb sites. In the first Pb site, Pb(1) is bonded to two equivalent N(4) and four equivalent N(1) atoms to form edge-sharing PbN6 octahedra. In the second Pb site, Pb(2) is bonded in a 3-coordinate geometry to one N(1) and two equivalent N(2) atoms. In the third Pb site, Pb(3) is bonded in a rectangular see-saw-like geometry to two equivalent N(1) and two equivalent N(2) atoms. In the fourth Pb site, Pb(4) is bonded in a 3-coordinate geometry to one N(3) and two equivalent N(2) atoms. C(1) is bonded in a linear geometry to one N(3) and one N(4) atom. There are five inequivalent N sites. In the first N site, N(3) is bonded in a single-bond geometry to two equivalent Pb(4) and one C(1) atom. In the second N site, N(4) is bonded in a single-bond geometry to one Pb(1) and one C(1) atom. In the third N site, N(4) is bonded in a single-bond geometry to one Pb(1) and one C(1) atom. In the fourth N site, N(1) is bonded to two equivalent Pb(1), two equivalent Pb(2), and two equivalent Pb(3) atoms to form NPb6 octahedra that share corners with two equivalent N(1)Pb6 octahedra, edges with three equivalent N(1)Pb6 octahedra, and edges with four equivalent N(2)Pb5 square pyramids. The corner-sharing octahedra are not tilted. In the fifth N site, N(2) is bonded to one Pb(3), two equivalent Pb(2), and two equivalent Pb(4) atoms to form NPb5 square pyramids that share  a cornercorner with one N(2)Pb5 square pyramid, edges with two equivalent N(1)Pb6 octahedra, and edges with two equivalent N(2)Pb5 square pyramids. is represented by the CIF card [CIF]
data_Pb11(CN5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   16.232
_cell_length_b   16.232
_cell_length_c   3.606
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   949.946
_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
  Pb  Pb0  1  0.500  0.500  0.500  1.0
  Pb  Pb1  1  0.000  0.000  0.000  1.0
  Pb  Pb2  1  0.989  0.794  0.500  1.0
  Pb  Pb3  1  0.011  0.206  0.500  1.0
  Pb  Pb4  1  0.511  0.294  0.000  1.0
  Pb  Pb5  1  0.489  0.706  0.000  1.0
  Pb  Pb6  1  0.794  0.989  0.500  1.0
  Pb  Pb7  1  0.206  0.011  0.500  1.0
  Pb  Pb8  1  0.294  0.511  0.000  1.0
  Pb  Pb9  1  0.706  0.489  0.000  1.0
  Pb  Pb10  1  0.667  0.667  0.500  1.0
  Pb  Pb11  1  0.333  0.333  0.500  1.0
  Pb  Pb12  1  0.833  0.167  0.000  1.0
  Pb  Pb13  1  0.167  0.833  0.000  1.0
  Pb  Pb14  1  0.366  0.873  0.500  1.0
  Pb  Pb15  1  0.634  0.127  0.500  1.0
  Pb  Pb16  1  0.134  0.373  0.000  1.0
  Pb  Pb17  1  0.866  0.627  0.000  1.0
  Pb  Pb18  1  0.873  0.366  0.500  1.0
  Pb  Pb19  1  0.127  0.634  0.500  1.0
  Pb  Pb20  1  0.373  0.134  0.000  1.0
  Pb  Pb21  1  0.627  0.866  0.000  1.0
  C  C22  1  0.326  0.674  0.500  1.0
  C  C23  1  0.674  0.326  0.500  1.0
  C  C24  1  0.174  0.174  0.000  1.0
  C  C25  1  0.826  0.826  0.000  1.0
  N  N26  1  0.088  0.912  0.500  1.0
  N  N27  1  0.912  0.088  0.500  1.0
  N  N28  1  0.412  0.412  0.000  1.0
  N  N29  1  0.588  0.588  0.000  1.0
  N  N30  1  0.427  0.212  0.500  1.0
  N  N31  1  0.573  0.788  0.500  1.0
  N  N32  1  0.073  0.712  0.000  1.0
  N  N33  1  0.927  0.288  0.000  1.0
  N  N34  1  0.212  0.427  0.500  1.0
  N  N35  1  0.788  0.573  0.500  1.0
  N  N36  1  0.712  0.073  0.000  1.0
  N  N37  1  0.288  0.927  0.000  1.0
  N  N38  1  0.272  0.728  0.500  1.0
  N  N39  1  0.728  0.272  0.500  1.0
  N  N40  1  0.228  0.228  0.000  1.0
  N  N41  1  0.772  0.772  0.000  1.0
  N  N42  1  0.380  0.620  0.500  1.0
  N  N43  1  0.620  0.380  0.500  1.0
  N  N44  1  0.120  0.120  0.000  1.0
  N  N45  1  0.880  0.880  0.000  1.0
[/CIF]
.