The crystal structure described by SrSnN2 crystallizes in the tetragonal P4/nmm space group. Sr(1) is bonded to five equivalent N(2) atoms to form a mixture of corner and edge-sharing SrN5 square pyramids. Sn(1) is bonded in a 5-coordinate geometry to one N(2) and four equivalent N(1) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded to four equivalent Sn(1) atoms to form distorted NSn4 trigonal pyramids that share corners with four equivalent N(2)Sr5Sn octahedra, corners with four equivalent N(1)Sn4 trigonal pyramids, and edges with four equivalent N(1)Sn4 trigonal pyramids. The corner-sharing octahedral tilt angles are 66°. In the second N site, N(2) is bonded to five equivalent Sr(1) and one Sn(1) atom to form NSr5Sn octahedra that share corners with four equivalent N(2)Sr5Sn octahedra, corners with four equivalent N(1)Sn4 trigonal pyramids, and edges with eight equivalent N(2)Sr5Sn octahedra. The corner-sharing octahedral tilt angles are 5°. is represented by the CIF card [CIF]
data_SrSnN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.017
_cell_length_b   4.017
_cell_length_c   8.496
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   137.101
_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  0.750  0.750  0.138  1.0
  Sr  Sr1  1  0.250  0.250  0.862  1.0
  Sn  Sn2  1  0.750  0.750  0.607  1.0
  Sn  Sn3  1  0.250  0.250  0.393  1.0
  N  N4  1  0.750  0.250  0.500  1.0
  N  N5  1  0.250  0.750  0.500  1.0
  N  N6  1  0.750  0.750  0.848  1.0
  N  N7  1  0.250  0.250  0.152  1.0
[/CIF]
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The crystal structure described by SrSnN2 crystallizes in the tetragonal P4/nmm space group. Sr(1) is bonded to five equivalent N(2) atoms to form a mixture of corner and edge-sharing SrN5 square pyramids. Sn(1) is bonded in a 5-coordinate geometry to one N(2) and four equivalent N(1) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded to four equivalent Sn(1) atoms to form distorted NSn4 trigonal pyramids that share corners with four equivalent N(2)Sr5Sn octahedra, corners with four equivalent N(1)Sn4 trigonal pyramids, and edges with four equivalent N(1)Sn4 trigonal pyramids. The corner-sharing octahedral tilt angles are 66°. In the second N site, N(2) is bonded to five equivalent Sr(1) and one Sn(1) atom to form NSr5Sn octahedra that share corners with four equivalent N(2)Sr5Sn octahedra, corners with four equivalent N(1)Sn4 trigonal pyramids, and edges with eight equivalent N(2)Sr5Sn octahedra. The corner-sharing octahedral tilt angles are 5°. is represented by the CIF card [CIF]
data_SrSnN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.017
_cell_length_b   4.017
_cell_length_c   8.496
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   137.101
_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  0.750  0.750  0.138  1.0
  Sr  Sr1  1  0.250  0.250  0.862  1.0
  Sn  Sn2  1  0.750  0.750  0.607  1.0
  Sn  Sn3  1  0.250  0.250  0.393  1.0
  N  N4  1  0.750  0.250  0.500  1.0
  N  N5  1  0.250  0.750  0.500  1.0
  N  N6  1  0.750  0.750  0.848  1.0
  N  N7  1  0.250  0.250  0.152  1.0
[/CIF]
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