The crystal structure described by Sr2GeN2 crystallizes in the tetragonal P4_2/mbc space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 5-coordinate geometry to one N(2) and four equivalent N(1) atoms. In the second Sr site, Sr(2) is bonded to one N(1) and four equivalent N(2) atoms to form a mixture of distorted corner and edge-sharing SrN5 square pyramids. Ge(1) is bonded in a bent 120 degrees geometry to one N(1) and one N(2) atom. There are two inequivalent N sites. In the first N site, N(2) is bonded to one Sr(1), four equivalent Sr(2), and one Ge(1) atom to form a mixture of corner and edge-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 9-61°. In the second N site, N(1) is bonded to one Sr(2), four equivalent Sr(1), 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 12-61°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2GeN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.787
_cell_length_b   11.787
_cell_length_c   5.395
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   749.475
_cell_formula_units_Z   8
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  0.478  0.152  0.500  1.0
  Sr  Sr1  1  0.522  0.848  0.500  1.0
  Sr  Sr2  1  0.848  0.478  0.000  1.0
  Sr  Sr3  1  0.152  0.522  0.000  1.0
  Sr  Sr4  1  0.652  0.978  0.000  1.0
  Sr  Sr5  1  0.978  0.348  0.500  1.0
  Sr  Sr6  1  0.022  0.652  0.500  1.0
  Sr  Sr7  1  0.348  0.022  0.000  1.0
  Sr  Sr8  1  0.133  0.081  0.500  1.0
  Sr  Sr9  1  0.867  0.919  0.500  1.0
  Sr  Sr10  1  0.919  0.133  0.000  1.0
  Sr  Sr11  1  0.081  0.867  0.000  1.0
  Sr  Sr12  1  0.581  0.633  0.000  1.0
  Sr  Sr13  1  0.633  0.419  0.500  1.0
  Sr  Sr14  1  0.367  0.581  0.500  1.0
  Sr  Sr15  1  0.419  0.367  0.000  1.0
  Ge  Ge16  1  0.151  0.256  0.000  1.0
  Ge  Ge17  1  0.256  0.849  0.500  1.0
  Ge  Ge18  1  0.744  0.151  0.500  1.0
  Ge  Ge19  1  0.849  0.744  0.000  1.0
  Ge  Ge20  1  0.349  0.756  0.000  1.0
  Ge  Ge21  1  0.651  0.244  0.000  1.0
  Ge  Ge22  1  0.756  0.651  0.500  1.0
  Ge  Ge23  1  0.244  0.349  0.500  1.0
  N  N24  1  0.165  0.488  0.500  1.0
  N  N25  1  0.835  0.512  0.500  1.0
  N  N26  1  0.512  0.165  0.000  1.0
  N  N27  1  0.488  0.835  0.000  1.0
  N  N28  1  0.988  0.665  0.000  1.0
  N  N29  1  0.665  0.012  0.500  1.0
  N  N30  1  0.335  0.988  0.500  1.0
  N  N31  1  0.012  0.335  0.000  1.0
  N  N32  1  0.401  0.366  0.500  1.0
  N  N33  1  0.599  0.634  0.500  1.0
  N  N34  1  0.634  0.401  0.000  1.0
  N  N35  1  0.366  0.599  0.000  1.0
  N  N36  1  0.866  0.901  0.000  1.0
  N  N37  1  0.901  0.134  0.500  1.0
  N  N38  1  0.099  0.866  0.500  1.0
  N  N39  1  0.134  0.099  0.000  1.0
[/CIF]
.
The crystal structure described by Sr2GeN2 crystallizes in the tetragonal P4_2/mbc space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 5-coordinate geometry to one N(2) and four equivalent N(1) atoms. In the second Sr site, Sr(2) is bonded to one N(1) and four equivalent N(2) atoms to form a mixture of distorted corner and edge-sharing SrN5 square pyramids. Ge(1) is bonded in a bent 120 degrees geometry to one N(1) and one N(2) atom. There are two inequivalent N sites. In the first N site, N(2) is bonded to one Sr(1), four equivalent Sr(2), and one Ge(1) atom to form a mixture of corner and edge-sharing NSr5Ge octahedra. The corner-sharing octahedral tilt angles range from 9-61°. In the second N site, N(1) is bonded to one Sr(2), four equivalent Sr(1), 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 12-61°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sr2GeN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.787
_cell_length_b   11.787
_cell_length_c   5.395
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   749.475
_cell_formula_units_Z   8
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  0.478  0.152  0.500  1.0
  Sr  Sr1  1  0.522  0.848  0.500  1.0
  Sr  Sr2  1  0.848  0.478  0.000  1.0
  Sr  Sr3  1  0.152  0.522  0.000  1.0
  Sr  Sr4  1  0.652  0.978  0.000  1.0
  Sr  Sr5  1  0.978  0.348  0.500  1.0
  Sr  Sr6  1  0.022  0.652  0.500  1.0
  Sr  Sr7  1  0.348  0.022  0.000  1.0
  Sr  Sr8  1  0.133  0.081  0.500  1.0
  Sr  Sr9  1  0.867  0.919  0.500  1.0
  Sr  Sr10  1  0.919  0.133  0.000  1.0
  Sr  Sr11  1  0.081  0.867  0.000  1.0
  Sr  Sr12  1  0.581  0.633  0.000  1.0
  Sr  Sr13  1  0.633  0.419  0.500  1.0
  Sr  Sr14  1  0.367  0.581  0.500  1.0
  Sr  Sr15  1  0.419  0.367  0.000  1.0
  Ge  Ge16  1  0.151  0.256  0.000  1.0
  Ge  Ge17  1  0.256  0.849  0.500  1.0
  Ge  Ge18  1  0.744  0.151  0.500  1.0
  Ge  Ge19  1  0.849  0.744  0.000  1.0
  Ge  Ge20  1  0.349  0.756  0.000  1.0
  Ge  Ge21  1  0.651  0.244  0.000  1.0
  Ge  Ge22  1  0.756  0.651  0.500  1.0
  Ge  Ge23  1  0.244  0.349  0.500  1.0
  N  N24  1  0.165  0.488  0.500  1.0
  N  N25  1  0.835  0.512  0.500  1.0
  N  N26  1  0.512  0.165  0.000  1.0
  N  N27  1  0.488  0.835  0.000  1.0
  N  N28  1  0.988  0.665  0.000  1.0
  N  N29  1  0.665  0.012  0.500  1.0
  N  N30  1  0.335  0.988  0.500  1.0
  N  N31  1  0.012  0.335  0.000  1.0
  N  N32  1  0.401  0.366  0.500  1.0
  N  N33  1  0.599  0.634  0.500  1.0
  N  N34  1  0.634  0.401  0.000  1.0
  N  N35  1  0.366  0.599  0.000  1.0
  N  N36  1  0.866  0.901  0.000  1.0
  N  N37  1  0.901  0.134  0.500  1.0
  N  N38  1  0.099  0.866  0.500  1.0
  N  N39  1  0.134  0.099  0.000  1.0
[/CIF]
.