The material described by Sr5(PbN3)2 crystallizes in the monoclinic C2/c space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one N(2), two equivalent N(1), and two equivalent N(3) atoms to form distorted SrN5 square pyramids that share corners with three equivalent Pb(1)N4 tetrahedra, edges with two equivalent Sr(1)N5 square pyramids, and edges with two equivalent Pb(1)N4 tetrahedra. In the second Sr site, Sr(2) is bonded in a 5-coordinate geometry to one N(3), two equivalent N(1), and two equivalent N(2) atoms. In the third Sr site, Sr(3) is bonded in a 4-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. Pb(1) is bonded to one N(1), one N(2), and two equivalent N(3) atoms to form PbN4 tetrahedra that share corners with three equivalent Sr(1)N5 square pyramids, edges with two equivalent Sr(1)N5 square pyramids, and  an edgeedge with one Pb(1)N4 tetrahedra. There are three inequivalent N sites. In the first N site, N(2) is bonded to one Sr(1), one Sr(3), two equivalent Sr(2), and one Pb(1) atom to form NSr4Pb trigonal bipyramids that share corners with five equivalent N(1)Sr5Pb octahedra, corners with two equivalent N(3)Sr3Pb2 trigonal bipyramids, corners with three equivalent N(2)Sr4Pb trigonal bipyramids, edges with two equivalent N(1)Sr5Pb octahedra, and edges with two equivalent N(3)Sr3Pb2 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 4-73°. In the second N site, N(3) is bonded to one Sr(2), two equivalent Sr(1), and two equivalent Pb(1) atoms to form distorted NSr3Pb2 trigonal bipyramids that share corners with four equivalent N(1)Sr5Pb octahedra, corners with two equivalent N(2)Sr4Pb trigonal bipyramids, edges with two equivalent N(1)Sr5Pb octahedra, edges with two equivalent N(3)Sr3Pb2 trigonal bipyramids, and edges with two equivalent N(2)Sr4Pb trigonal bipyramids. The corner-sharing octahedral tilt angles range from 14-80°. In the third N site, N(1) is bonded to one Sr(3), two equivalent Sr(1), two equivalent Sr(2), and one Pb(1) atom to form distorted NSr5Pb octahedra that share corners with four equivalent N(3)Sr3Pb2 trigonal bipyramids, corners with five equivalent N(2)Sr4Pb trigonal bipyramids,  an edgeedge with one N(1)Sr5Pb octahedra, edges with two equivalent N(3)Sr3Pb2 trigonal bipyramids, edges with two equivalent N(2)Sr4Pb trigonal bipyramids, and  a faceface with one N(1)Sr5Pb octahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr5(PbN3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.670
_cell_length_b   6.475
_cell_length_c   14.614
_cell_angle_alpha   90.000
_cell_angle_beta   96.597
_cell_angle_gamma   119.038
_symmetry_Int_Tables_number   1
_cell_volume   546.999
_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
  Sr  Sr0  1  0.180  0.842  0.019  1.0
  Sr  Sr1  1  0.820  0.662  0.481  1.0
  Sr  Sr2  1  0.820  0.158  0.981  1.0
  Sr  Sr3  1  0.180  0.338  0.519  1.0
  Sr  Sr4  1  0.297  0.049  0.715  1.0
  Sr  Sr5  1  0.703  0.752  0.785  1.0
  Sr  Sr6  1  0.703  0.951  0.285  1.0
  Sr  Sr7  1  0.297  0.248  0.215  1.0
  Sr  Sr8  1  0.000  0.374  0.750  1.0
  Sr  Sr9  1  0.000  0.626  0.250  1.0
  Pb  Pb10  1  0.578  0.918  0.586  1.0
  Pb  Pb11  1  0.422  0.340  0.914  1.0
  Pb  Pb12  1  0.422  0.082  0.414  1.0
  Pb  Pb13  1  0.578  0.660  0.086  1.0
  N  N14  1  0.933  0.011  0.633  1.0
  N  N15  1  0.067  0.078  0.867  1.0
  N  N16  1  0.067  0.989  0.367  1.0
  N  N17  1  0.933  0.922  0.133  1.0
  N  N18  1  0.315  0.669  0.669  1.0
  N  N19  1  0.685  0.354  0.831  1.0
  N  N20  1  0.685  0.331  0.331  1.0
  N  N21  1  0.315  0.646  0.169  1.0
  N  N22  1  0.520  0.242  0.562  1.0
  N  N23  1  0.480  0.722  0.938  1.0
  N  N24  1  0.480  0.758  0.438  1.0
  N  N25  1  0.520  0.278  0.062  1.0
[/CIF]
.
The material described by Sr5(PbN3)2 crystallizes in the monoclinic C2/c space group. There are three inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one N(2), two equivalent N(1), and two equivalent N(3) atoms to form distorted SrN5 square pyramids that share corners with three equivalent Pb(1)N4 tetrahedra, edges with two equivalent Sr(1)N5 square pyramids, and edges with two equivalent Pb(1)N4 tetrahedra. In the second Sr site, Sr(2) is bonded in a 5-coordinate geometry to one N(3), two equivalent N(1), and two equivalent N(2) atoms. In the third Sr site, Sr(3) is bonded in a 4-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. Pb(1) is bonded to one N(1), one N(2), and two equivalent N(3) atoms to form PbN4 tetrahedra that share corners with three equivalent Sr(1)N5 square pyramids, edges with two equivalent Sr(1)N5 square pyramids, and  an edgeedge with one Pb(1)N4 tetrahedra. There are three inequivalent N sites. In the first N site, N(2) is bonded to one Sr(1), one Sr(3), two equivalent Sr(2), and one Pb(1) atom to form NSr4Pb trigonal bipyramids that share corners with five equivalent N(1)Sr5Pb octahedra, corners with two equivalent N(3)Sr3Pb2 trigonal bipyramids, corners with three equivalent N(2)Sr4Pb trigonal bipyramids, edges with two equivalent N(1)Sr5Pb octahedra, and edges with two equivalent N(3)Sr3Pb2 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 4-73°. In the second N site, N(3) is bonded to one Sr(2), two equivalent Sr(1), and two equivalent Pb(1) atoms to form distorted NSr3Pb2 trigonal bipyramids that share corners with four equivalent N(1)Sr5Pb octahedra, corners with two equivalent N(2)Sr4Pb trigonal bipyramids, edges with two equivalent N(1)Sr5Pb octahedra, edges with two equivalent N(3)Sr3Pb2 trigonal bipyramids, and edges with two equivalent N(2)Sr4Pb trigonal bipyramids. The corner-sharing octahedral tilt angles range from 14-80°. In the third N site, N(1) is bonded to one Sr(3), two equivalent Sr(1), two equivalent Sr(2), and one Pb(1) atom to form distorted NSr5Pb octahedra that share corners with four equivalent N(3)Sr3Pb2 trigonal bipyramids, corners with five equivalent N(2)Sr4Pb trigonal bipyramids,  an edgeedge with one N(1)Sr5Pb octahedra, edges with two equivalent N(3)Sr3Pb2 trigonal bipyramids, edges with two equivalent N(2)Sr4Pb trigonal bipyramids, and  a faceface with one N(1)Sr5Pb octahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr5(PbN3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.670
_cell_length_b   6.475
_cell_length_c   14.614
_cell_angle_alpha   90.000
_cell_angle_beta   96.597
_cell_angle_gamma   119.038
_symmetry_Int_Tables_number   1
_cell_volume   546.999
_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
  Sr  Sr0  1  0.180  0.842  0.019  1.0
  Sr  Sr1  1  0.820  0.662  0.481  1.0
  Sr  Sr2  1  0.820  0.158  0.981  1.0
  Sr  Sr3  1  0.180  0.338  0.519  1.0
  Sr  Sr4  1  0.297  0.049  0.715  1.0
  Sr  Sr5  1  0.703  0.752  0.785  1.0
  Sr  Sr6  1  0.703  0.951  0.285  1.0
  Sr  Sr7  1  0.297  0.248  0.215  1.0
  Sr  Sr8  1  0.000  0.374  0.750  1.0
  Sr  Sr9  1  0.000  0.626  0.250  1.0
  Pb  Pb10  1  0.578  0.918  0.586  1.0
  Pb  Pb11  1  0.422  0.340  0.914  1.0
  Pb  Pb12  1  0.422  0.082  0.414  1.0
  Pb  Pb13  1  0.578  0.660  0.086  1.0
  N  N14  1  0.933  0.011  0.633  1.0
  N  N15  1  0.067  0.078  0.867  1.0
  N  N16  1  0.067  0.989  0.367  1.0
  N  N17  1  0.933  0.922  0.133  1.0
  N  N18  1  0.315  0.669  0.669  1.0
  N  N19  1  0.685  0.354  0.831  1.0
  N  N20  1  0.685  0.331  0.331  1.0
  N  N21  1  0.315  0.646  0.169  1.0
  N  N22  1  0.520  0.242  0.562  1.0
  N  N23  1  0.480  0.722  0.938  1.0
  N  N24  1  0.480  0.758  0.438  1.0
  N  N25  1  0.520  0.278  0.062  1.0
[/CIF]
.