The crystal structure described by Sr5(GeN3)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(1), two equivalent N(2), and two equivalent N(3) atoms to form distorted SrN5 trigonal bipyramids that share corners with two equivalent Ge(1)N4 tetrahedra, corners with two equivalent Sr(1)N5 trigonal bipyramids, edges with two equivalent Ge(1)N4 tetrahedra, and  an edgeedge with one Sr(1)N5 trigonal bipyramid. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. In the third Sr site, Sr(3) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. Ge(1) is bonded to one N(2), one N(3), and two equivalent N(1) atoms to form GeN4 tetrahedra that share corners with two equivalent Sr(1)N5 trigonal bipyramids,  an edgeedge with one Ge(1)N4 tetrahedra, and edges with two equivalent Sr(1)N5 trigonal bipyramids. There are three inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(3), two equivalent Sr(2), and two equivalent Ge(1) atoms. In the second N site, N(2) is bonded to one Sr(3), two equivalent Sr(1), two equivalent Sr(2), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 19-72°. In the third N site, N(3) is bonded to one Sr(3), two equivalent Sr(1), two equivalent Sr(2), and one Ge(1) atom to form a mixture of distorted corner, face, and edge-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 19-72°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr5(GeN3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.151
_cell_length_b   6.151
_cell_length_c   13.607
_cell_angle_alpha   81.386
_cell_angle_beta   81.386
_cell_angle_gamma   64.285
_symmetry_Int_Tables_number   1
_cell_volume   456.538
_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  0.932  0.758  0.715  1.0
  Sr  Sr1  1  0.324  0.795  0.503  1.0
  Sr  Sr2  1  0.758  0.932  0.215  1.0
  Sr  Sr3  1  0.621  0.379  0.750  1.0
  Sr  Sr4  1  0.795  0.324  0.003  1.0
  Sr  Sr5  1  0.379  0.621  0.250  1.0
  Sr  Sr6  1  0.676  0.205  0.497  1.0
  Sr  Sr7  1  0.205  0.676  0.997  1.0
  Sr  Sr8  1  0.242  0.068  0.785  1.0
  Sr  Sr9  1  0.068  0.242  0.285  1.0
  Ge  Ge10  1  0.651  0.904  0.924  1.0
  Ge  Ge11  1  0.096  0.349  0.576  1.0
  Ge  Ge12  1  0.904  0.651  0.424  1.0
  Ge  Ge13  1  0.349  0.096  0.076  1.0
  N  N14  1  0.354  0.209  0.937  1.0
  N  N15  1  0.692  0.605  0.352  1.0
  N  N16  1  0.209  0.354  0.437  1.0
  N  N17  1  0.097  0.016  0.127  1.0
  N  N18  1  0.791  0.646  0.563  1.0
  N  N19  1  0.646  0.791  0.063  1.0
  N  N20  1  0.903  0.984  0.873  1.0
  N  N21  1  0.984  0.903  0.373  1.0
  N  N22  1  0.308  0.395  0.648  1.0
  N  N23  1  0.395  0.308  0.148  1.0
  N  N24  1  0.605  0.692  0.852  1.0
  N  N25  1  0.016  0.097  0.627  1.0
[/CIF]
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The crystal structure described by Sr5(GeN3)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(1), two equivalent N(2), and two equivalent N(3) atoms to form distorted SrN5 trigonal bipyramids that share corners with two equivalent Ge(1)N4 tetrahedra, corners with two equivalent Sr(1)N5 trigonal bipyramids, edges with two equivalent Ge(1)N4 tetrahedra, and  an edgeedge with one Sr(1)N5 trigonal bipyramid. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. In the third Sr site, Sr(3) is bonded in a 6-coordinate geometry to two equivalent N(1), two equivalent N(2), and two equivalent N(3) atoms. Ge(1) is bonded to one N(2), one N(3), and two equivalent N(1) atoms to form GeN4 tetrahedra that share corners with two equivalent Sr(1)N5 trigonal bipyramids,  an edgeedge with one Ge(1)N4 tetrahedra, and edges with two equivalent Sr(1)N5 trigonal bipyramids. There are three inequivalent N sites. In the first N site, N(1) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(3), two equivalent Sr(2), and two equivalent Ge(1) atoms. In the second N site, N(2) is bonded to one Sr(3), two equivalent Sr(1), two equivalent Sr(2), and one Ge(1) atom to form a mixture of distorted corner and edge-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 19-72°. In the third N site, N(3) is bonded to one Sr(3), two equivalent Sr(1), two equivalent Sr(2), and one Ge(1) atom to form a mixture of distorted corner, face, and edge-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 19-72°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr5(GeN3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.151
_cell_length_b   6.151
_cell_length_c   13.607
_cell_angle_alpha   81.386
_cell_angle_beta   81.386
_cell_angle_gamma   64.285
_symmetry_Int_Tables_number   1
_cell_volume   456.538
_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  0.932  0.758  0.715  1.0
  Sr  Sr1  1  0.324  0.795  0.503  1.0
  Sr  Sr2  1  0.758  0.932  0.215  1.0
  Sr  Sr3  1  0.621  0.379  0.750  1.0
  Sr  Sr4  1  0.795  0.324  0.003  1.0
  Sr  Sr5  1  0.379  0.621  0.250  1.0
  Sr  Sr6  1  0.676  0.205  0.497  1.0
  Sr  Sr7  1  0.205  0.676  0.997  1.0
  Sr  Sr8  1  0.242  0.068  0.785  1.0
  Sr  Sr9  1  0.068  0.242  0.285  1.0
  Ge  Ge10  1  0.651  0.904  0.924  1.0
  Ge  Ge11  1  0.096  0.349  0.576  1.0
  Ge  Ge12  1  0.904  0.651  0.424  1.0
  Ge  Ge13  1  0.349  0.096  0.076  1.0
  N  N14  1  0.354  0.209  0.937  1.0
  N  N15  1  0.692  0.605  0.352  1.0
  N  N16  1  0.209  0.354  0.437  1.0
  N  N17  1  0.097  0.016  0.127  1.0
  N  N18  1  0.791  0.646  0.563  1.0
  N  N19  1  0.646  0.791  0.063  1.0
  N  N20  1  0.903  0.984  0.873  1.0
  N  N21  1  0.984  0.903  0.373  1.0
  N  N22  1  0.308  0.395  0.648  1.0
  N  N23  1  0.395  0.308  0.148  1.0
  N  N24  1  0.605  0.692  0.852  1.0
  N  N25  1  0.016  0.097  0.627  1.0
[/CIF]
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