The compound described by CrN2 is Low Tridymite-like structured and crystallizes in the tetragonal I4_1/amd space group. Cr(1) is bonded to one N(1), one N(2), one N(3), and one N(4) atom to form corner-sharing CrN4 tetrahedra. There are four inequivalent N sites. In the first N site, N(1) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. In the second N site, N(2) is bonded in a linear geometry to two equivalent Cr(1) atoms. In the third N site, N(3) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. In the fourth N site, N(4) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CrN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.733
_cell_length_b   13.733
_cell_length_c   13.733
_cell_angle_alpha   133.149
_cell_angle_beta   133.149
_cell_angle_gamma   68.420
_symmetry_Int_Tables_number   1
_cell_volume   1354.098
_cell_formula_units_Z   16
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
  Cr  Cr0  1  0.329  0.522  0.493  1.0
  Cr  Cr1  1  0.028  0.836  0.507  1.0
  Cr  Cr2  1  0.722  0.414  0.993  1.0
  Cr  Cr3  1  0.421  0.728  0.007  1.0
  Cr  Cr4  1  0.329  0.836  0.808  1.0
  Cr  Cr5  1  0.028  0.522  0.192  1.0
  Cr  Cr6  1  0.722  0.728  0.308  1.0
  Cr  Cr7  1  0.421  0.414  0.692  1.0
  Cr  Cr8  1  0.164  0.972  0.493  1.0
  Cr  Cr9  1  0.478  0.671  0.507  1.0
  Cr  Cr10  1  0.272  0.579  0.993  1.0
  Cr  Cr11  1  0.586  0.278  0.007  1.0
  Cr  Cr12  1  0.164  0.671  0.192  1.0
  Cr  Cr13  1  0.478  0.972  0.808  1.0
  Cr  Cr14  1  0.272  0.278  0.692  1.0
  Cr  Cr15  1  0.586  0.579  0.308  1.0
  N  N16  1  0.446  0.554  0.500  1.0
  N  N17  1  0.054  0.946  0.500  1.0
  N  N18  1  0.696  0.304  0.000  1.0
  N  N19  1  0.304  0.696  0.000  1.0
  N  N20  1  0.446  0.946  0.892  1.0
  N  N21  1  0.054  0.554  0.108  1.0
  N  N22  1  0.696  0.696  0.392  1.0
  N  N23  1  0.304  0.304  0.608  1.0
  N  N24  1  0.422  0.574  0.849  1.0
  N  N25  1  0.725  0.574  0.151  1.0
  N  N26  1  0.025  0.676  0.349  1.0
  N  N27  1  0.328  0.676  0.651  1.0
  N  N28  1  0.426  0.275  0.849  1.0
  N  N29  1  0.426  0.578  0.151  1.0
  N  N30  1  0.324  0.672  0.349  1.0
  N  N31  1  0.324  0.975  0.651  1.0
  N  N32  1  0.582  0.785  0.203  1.0
  N  N33  1  0.582  0.379  0.797  1.0
  N  N34  1  0.168  0.871  0.703  1.0
  N  N35  1  0.168  0.465  0.297  1.0
  N  N36  1  0.621  0.418  0.203  1.0
  N  N37  1  0.215  0.418  0.797  1.0
  N  N38  1  0.535  0.832  0.703  1.0
  N  N39  1  0.129  0.832  0.297  1.0
  N  N40  1  0.375  0.415  0.540  1.0
  N  N41  1  0.875  0.835  0.460  1.0
  N  N42  1  0.875  0.415  0.040  1.0
  N  N43  1  0.375  0.835  0.960  1.0
  N  N44  1  0.165  0.125  0.540  1.0
  N  N45  1  0.585  0.625  0.460  1.0
  N  N46  1  0.165  0.625  0.040  1.0
  N  N47  1  0.585  0.125  0.960  1.0
[/CIF]
.
The compound described by CrN2 is Low Tridymite-like structured and crystallizes in the tetragonal I4_1/amd space group. Cr(1) is bonded to one N(1), one N(2), one N(3), and one N(4) atom to form corner-sharing CrN4 tetrahedra. There are four inequivalent N sites. In the first N site, N(1) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. In the second N site, N(2) is bonded in a linear geometry to two equivalent Cr(1) atoms. In the third N site, N(3) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. In the fourth N site, N(4) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_CrN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   13.733
_cell_length_b   13.733
_cell_length_c   13.733
_cell_angle_alpha   133.149
_cell_angle_beta   133.149
_cell_angle_gamma   68.420
_symmetry_Int_Tables_number   1
_cell_volume   1354.098
_cell_formula_units_Z   16
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
  Cr  Cr0  1  0.329  0.522  0.493  1.0
  Cr  Cr1  1  0.028  0.836  0.507  1.0
  Cr  Cr2  1  0.722  0.414  0.993  1.0
  Cr  Cr3  1  0.421  0.728  0.007  1.0
  Cr  Cr4  1  0.329  0.836  0.808  1.0
  Cr  Cr5  1  0.028  0.522  0.192  1.0
  Cr  Cr6  1  0.722  0.728  0.308  1.0
  Cr  Cr7  1  0.421  0.414  0.692  1.0
  Cr  Cr8  1  0.164  0.972  0.493  1.0
  Cr  Cr9  1  0.478  0.671  0.507  1.0
  Cr  Cr10  1  0.272  0.579  0.993  1.0
  Cr  Cr11  1  0.586  0.278  0.007  1.0
  Cr  Cr12  1  0.164  0.671  0.192  1.0
  Cr  Cr13  1  0.478  0.972  0.808  1.0
  Cr  Cr14  1  0.272  0.278  0.692  1.0
  Cr  Cr15  1  0.586  0.579  0.308  1.0
  N  N16  1  0.446  0.554  0.500  1.0
  N  N17  1  0.054  0.946  0.500  1.0
  N  N18  1  0.696  0.304  0.000  1.0
  N  N19  1  0.304  0.696  0.000  1.0
  N  N20  1  0.446  0.946  0.892  1.0
  N  N21  1  0.054  0.554  0.108  1.0
  N  N22  1  0.696  0.696  0.392  1.0
  N  N23  1  0.304  0.304  0.608  1.0
  N  N24  1  0.422  0.574  0.849  1.0
  N  N25  1  0.725  0.574  0.151  1.0
  N  N26  1  0.025  0.676  0.349  1.0
  N  N27  1  0.328  0.676  0.651  1.0
  N  N28  1  0.426  0.275  0.849  1.0
  N  N29  1  0.426  0.578  0.151  1.0
  N  N30  1  0.324  0.672  0.349  1.0
  N  N31  1  0.324  0.975  0.651  1.0
  N  N32  1  0.582  0.785  0.203  1.0
  N  N33  1  0.582  0.379  0.797  1.0
  N  N34  1  0.168  0.871  0.703  1.0
  N  N35  1  0.168  0.465  0.297  1.0
  N  N36  1  0.621  0.418  0.203  1.0
  N  N37  1  0.215  0.418  0.797  1.0
  N  N38  1  0.535  0.832  0.703  1.0
  N  N39  1  0.129  0.832  0.297  1.0
  N  N40  1  0.375  0.415  0.540  1.0
  N  N41  1  0.875  0.835  0.460  1.0
  N  N42  1  0.875  0.415  0.040  1.0
  N  N43  1  0.375  0.835  0.960  1.0
  N  N44  1  0.165  0.125  0.540  1.0
  N  N45  1  0.585  0.625  0.460  1.0
  N  N46  1  0.165  0.625  0.040  1.0
  N  N47  1  0.585  0.125  0.960  1.0
[/CIF]
.