The material described by CrN2 is quartz (beta) structured and crystallizes in the trigonal P3_221 space group. Cr(1) is bonded to four equivalent N(1) atoms to form corner-sharing CrN4 tetrahedra. N(1) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. is represented by the CIF file [CIF]
data_CrN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.482
_cell_length_b   5.482
_cell_length_c   5.993
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   156.002
_cell_formula_units_Z   3
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  0.513  0.513  0.000  1.0
  Cr  Cr1  1  0.487  0.000  0.667  1.0
  Cr  Cr2  1  0.000  0.487  0.333  1.0
  N  N3  1  0.570  0.802  0.855  1.0
  N  N4  1  0.198  0.768  0.522  1.0
  N  N5  1  0.232  0.430  0.188  1.0
  N  N6  1  0.802  0.570  0.145  1.0
  N  N7  1  0.768  0.198  0.478  1.0
  N  N8  1  0.430  0.232  0.812  1.0
[/CIF]
.
The material described by CrN2 is quartz (beta) structured and crystallizes in the trigonal P3_221 space group. Cr(1) is bonded to four equivalent N(1) atoms to form corner-sharing CrN4 tetrahedra. N(1) is bonded in a bent 150 degrees geometry to two equivalent Cr(1) atoms. is represented by the CIF file [CIF]
data_CrN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.482
_cell_length_b   5.482
_cell_length_c   5.993
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   156.002
_cell_formula_units_Z   3
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  0.513  0.513  0.000  1.0
  Cr  Cr1  1  0.487  0.000  0.667  1.0
  Cr  Cr2  1  0.000  0.487  0.333  1.0
  N  N3  1  0.570  0.802  0.855  1.0
  N  N4  1  0.198  0.768  0.522  1.0
  N  N5  1  0.232  0.430  0.188  1.0
  N  N6  1  0.802  0.570  0.145  1.0
  N  N7  1  0.768  0.198  0.478  1.0
  N  N8  1  0.430  0.232  0.812  1.0
[/CIF]
.