The material described by CrN2 crystallizes in the trigonal P3_221 space group. Cr(1) is bonded in a 8-coordinate geometry to eight equivalent N(1) atoms. N(1) is bonded in a 5-coordinate geometry to four equivalent Cr(1) and one N(1) atom. is represented by the CIF file [CIF]
data_CrN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.155
_cell_length_b   4.155
_cell_length_c   4.693
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   70.175
_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  0.622  0.622  0.000  1.0
  Cr  Cr1  1  0.378  0.000  0.667  1.0
  Cr  Cr2  1  0.000  0.378  0.333  1.0
  N  N3  1  0.653  0.809  0.421  1.0
  N  N4  1  0.191  0.844  0.087  1.0
  N  N5  1  0.156  0.347  0.754  1.0
  N  N6  1  0.809  0.653  0.579  1.0
  N  N7  1  0.844  0.191  0.913  1.0
  N  N8  1  0.347  0.156  0.246  1.0
[/CIF]
.
The material described by CrN2 crystallizes in the trigonal P3_221 space group. Cr(1) is bonded in a 8-coordinate geometry to eight equivalent N(1) atoms. N(1) is bonded in a 5-coordinate geometry to four equivalent Cr(1) and one N(1) atom. is represented by the CIF file [CIF]
data_CrN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.155
_cell_length_b   4.155
_cell_length_c   4.693
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   70.175
_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  0.622  0.622  0.000  1.0
  Cr  Cr1  1  0.378  0.000  0.667  1.0
  Cr  Cr2  1  0.000  0.378  0.333  1.0
  N  N3  1  0.653  0.809  0.421  1.0
  N  N4  1  0.191  0.844  0.087  1.0
  N  N5  1  0.156  0.347  0.754  1.0
  N  N6  1  0.809  0.653  0.579  1.0
  N  N7  1  0.844  0.191  0.913  1.0
  N  N8  1  0.347  0.156  0.246  1.0
[/CIF]
.