The compound described by WN2 crystallizes in the monoclinic C2/m space group. There are two inequivalent W sites. In the first W site, W(1) is bonded to one N(3), one N(4), two equivalent N(1), and two equivalent N(2) atoms to form a mixture of distorted corner and edge-sharing WN6 octahedra. The corner-sharing octahedral tilt angles are 32°. In the second W site, W(2) is bonded in a 6-coordinate geometry to one N(1), one N(2), one N(3), and three equivalent N(4) atoms. There are four inequivalent N sites. In the first N site, N(1) is bonded in a 3-coordinate geometry to one W(2) and two equivalent W(1) atoms. In the second N site, N(2) is bonded in a distorted trigonal non-coplanar geometry to one W(2) and two equivalent W(1) atoms. In the third N site, N(3) is bonded in a linear geometry to one W(1) and one W(2) atom. In the fourth N site, N(4) is bonded to one W(1) and three equivalent W(2) atoms to form a mixture of distorted corner and edge-sharing NW4 trigonal pyramids. is represented by the CIF card [CIF]
data_WN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.619
_cell_length_b   6.619
_cell_length_c   6.882
_cell_angle_alpha   74.088
_cell_angle_beta   74.088
_cell_angle_gamma   33.225
_symmetry_Int_Tables_number   1
_cell_volume   158.297
_cell_formula_units_Z   4
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
  W  W0  1  0.902  0.902  0.712  1.0
  W  W1  1  0.808  0.808  0.276  1.0
  W  W2  1  0.192  0.192  0.724  1.0
  W  W3  1  0.098  0.098  0.288  1.0
  N  N4  1  0.944  0.944  0.361  1.0
  N  N5  1  0.360  0.360  0.707  1.0
  N  N6  1  0.866  0.866  0.002  1.0
  N  N7  1  0.737  0.737  0.646  1.0
  N  N8  1  0.263  0.263  0.354  1.0
  N  N9  1  0.134  0.134  0.998  1.0
  N  N10  1  0.640  0.640  0.293  1.0
  N  N11  1  0.056  0.056  0.639  1.0
[/CIF]
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The compound described by WN2 crystallizes in the monoclinic C2/m space group. There are two inequivalent W sites. In the first W site, W(1) is bonded to one N(3), one N(4), two equivalent N(1), and two equivalent N(2) atoms to form a mixture of distorted corner and edge-sharing WN6 octahedra. The corner-sharing octahedral tilt angles are 32°. In the second W site, W(2) is bonded in a 6-coordinate geometry to one N(1), one N(2), one N(3), and three equivalent N(4) atoms. There are four inequivalent N sites. In the first N site, N(1) is bonded in a 3-coordinate geometry to one W(2) and two equivalent W(1) atoms. In the second N site, N(2) is bonded in a distorted trigonal non-coplanar geometry to one W(2) and two equivalent W(1) atoms. In the third N site, N(3) is bonded in a linear geometry to one W(1) and one W(2) atom. In the fourth N site, N(4) is bonded to one W(1) and three equivalent W(2) atoms to form a mixture of distorted corner and edge-sharing NW4 trigonal pyramids. is represented by the CIF card [CIF]
data_WN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.619
_cell_length_b   6.619
_cell_length_c   6.882
_cell_angle_alpha   74.088
_cell_angle_beta   74.088
_cell_angle_gamma   33.225
_symmetry_Int_Tables_number   1
_cell_volume   158.297
_cell_formula_units_Z   4
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
  W  W0  1  0.902  0.902  0.712  1.0
  W  W1  1  0.808  0.808  0.276  1.0
  W  W2  1  0.192  0.192  0.724  1.0
  W  W3  1  0.098  0.098  0.288  1.0
  N  N4  1  0.944  0.944  0.361  1.0
  N  N5  1  0.360  0.360  0.707  1.0
  N  N6  1  0.866  0.866  0.002  1.0
  N  N7  1  0.737  0.737  0.646  1.0
  N  N8  1  0.263  0.263  0.354  1.0
  N  N9  1  0.134  0.134  0.998  1.0
  N  N10  1  0.640  0.640  0.293  1.0
  N  N11  1  0.056  0.056  0.639  1.0
[/CIF]
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