The structure described by CrN2 crystallizes in the cubic Fd-3m space group. Cr(1) is bonded to one N(2) and three equivalent N(1) atoms to form corner-sharing CrN4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded in a bent 120 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. is represented by the Crystallographic Information File (CIF) [CIF]
data_CrN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.531
_cell_length_b   11.531
_cell_length_c   11.531
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   1084.043
_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
  Cr  Cr0  1  0.564  0.308  0.564  1.0
  Cr  Cr1  1  0.564  0.564  0.564  1.0
  Cr  Cr2  1  0.308  0.564  0.564  1.0
  Cr  Cr3  1  0.564  0.564  0.308  1.0
  Cr  Cr4  1  0.686  0.942  0.686  1.0
  Cr  Cr5  1  0.686  0.686  0.686  1.0
  Cr  Cr6  1  0.942  0.686  0.686  1.0
  Cr  Cr7  1  0.686  0.686  0.942  1.0
  N  N8  1  0.378  0.622  0.622  1.0
  N  N9  1  0.378  0.378  0.622  1.0
  N  N10  1  0.622  0.378  0.622  1.0
  N  N11  1  0.622  0.622  0.378  1.0
  N  N12  1  0.378  0.622  0.378  1.0
  N  N13  1  0.622  0.378  0.378  1.0
  N  N14  1  0.872  0.628  0.628  1.0
  N  N15  1  0.872  0.872  0.628  1.0
  N  N16  1  0.628  0.872  0.628  1.0
  N  N17  1  0.628  0.628  0.872  1.0
  N  N18  1  0.872  0.628  0.872  1.0
  N  N19  1  0.628  0.872  0.872  1.0
  N  N20  1  0.625  0.125  0.625  1.0
  N  N21  1  0.625  0.625  0.625  1.0
  N  N22  1  0.125  0.625  0.625  1.0
  N  N23  1  0.625  0.625  0.125  1.0
[/CIF]
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The structure described by CrN2 crystallizes in the cubic Fd-3m space group. Cr(1) is bonded to one N(2) and three equivalent N(1) atoms to form corner-sharing CrN4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded in a bent 120 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. is represented by the Crystallographic Information File (CIF) [CIF]
data_CrN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.531
_cell_length_b   11.531
_cell_length_c   11.531
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   1084.043
_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
  Cr  Cr0  1  0.564  0.308  0.564  1.0
  Cr  Cr1  1  0.564  0.564  0.564  1.0
  Cr  Cr2  1  0.308  0.564  0.564  1.0
  Cr  Cr3  1  0.564  0.564  0.308  1.0
  Cr  Cr4  1  0.686  0.942  0.686  1.0
  Cr  Cr5  1  0.686  0.686  0.686  1.0
  Cr  Cr6  1  0.942  0.686  0.686  1.0
  Cr  Cr7  1  0.686  0.686  0.942  1.0
  N  N8  1  0.378  0.622  0.622  1.0
  N  N9  1  0.378  0.378  0.622  1.0
  N  N10  1  0.622  0.378  0.622  1.0
  N  N11  1  0.622  0.622  0.378  1.0
  N  N12  1  0.378  0.622  0.378  1.0
  N  N13  1  0.622  0.378  0.378  1.0
  N  N14  1  0.872  0.628  0.628  1.0
  N  N15  1  0.872  0.872  0.628  1.0
  N  N16  1  0.628  0.872  0.628  1.0
  N  N17  1  0.628  0.628  0.872  1.0
  N  N18  1  0.872  0.628  0.872  1.0
  N  N19  1  0.628  0.872  0.872  1.0
  N  N20  1  0.625  0.125  0.625  1.0
  N  N21  1  0.625  0.625  0.625  1.0
  N  N22  1  0.125  0.625  0.625  1.0
  N  N23  1  0.625  0.625  0.125  1.0
[/CIF]
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