The compound described by U2N3 is Spinel-derived structured and crystallizes in the cubic Ia-3 space group. There are two inequivalent U sites. In the first U site, U(1) is bonded to six equivalent N(1) atoms to form a mixture of distorted corner and edge-sharing UN6 octahedra. The corner-sharing octahedral tilt angles are 58°. In the second U site, U(2) is bonded to six equivalent N(1) atoms to form a mixture of distorted corner and edge-sharing UN6 octahedra. The corner-sharing octahedral tilt angles range from 58-60°. N(1) is bonded to one U(1) and three equivalent U(2) atoms to form a mixture of corner and edge-sharing NU4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_U2N3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.279
_cell_length_b   9.279
_cell_length_c   9.279
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   615.059
_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
  U  U0  1  0.500  0.500  0.500  1.0
  U  U1  1  0.000  0.500  0.000  1.0
  U  U2  1  0.000  0.000  0.500  1.0
  U  U3  1  0.500  0.000  0.000  1.0
  U  U4  1  0.228  0.978  0.250  1.0
  U  U5  1  0.522  0.750  0.272  1.0
  U  U6  1  0.750  0.272  0.522  1.0
  U  U7  1  0.978  0.250  0.228  1.0
  U  U8  1  0.250  0.228  0.978  1.0
  U  U9  1  0.272  0.522  0.750  1.0
  U  U10  1  0.772  0.022  0.750  1.0
  U  U11  1  0.478  0.250  0.728  1.0
  U  U12  1  0.250  0.728  0.478  1.0
  U  U13  1  0.022  0.750  0.772  1.0
  U  U14  1  0.750  0.772  0.022  1.0
  U  U15  1  0.728  0.478  0.250  1.0
  N  N16  1  0.764  0.531  0.527  1.0
  N  N17  1  0.969  0.732  0.996  1.0
  N  N18  1  0.768  0.736  0.263  1.0
  N  N19  1  0.237  0.973  0.504  1.0
  N  N20  1  0.732  0.996  0.969  1.0
  N  N21  1  0.263  0.768  0.736  1.0
  N  N22  1  0.973  0.504  0.237  1.0
  N  N23  1  0.527  0.764  0.531  1.0
  N  N24  1  0.531  0.527  0.764  1.0
  N  N25  1  0.996  0.969  0.732  1.0
  N  N26  1  0.736  0.263  0.768  1.0
  N  N27  1  0.504  0.237  0.973  1.0
  N  N28  1  0.236  0.469  0.473  1.0
  N  N29  1  0.031  0.268  0.004  1.0
  N  N30  1  0.232  0.264  0.737  1.0
  N  N31  1  0.763  0.027  0.496  1.0
  N  N32  1  0.268  0.004  0.031  1.0
  N  N33  1  0.737  0.232  0.264  1.0
  N  N34  1  0.027  0.496  0.763  1.0
  N  N35  1  0.473  0.236  0.469  1.0
  N  N36  1  0.469  0.473  0.236  1.0
  N  N37  1  0.004  0.031  0.268  1.0
  N  N38  1  0.264  0.737  0.232  1.0
  N  N39  1  0.496  0.763  0.027  1.0
[/CIF]
.
The compound described by U2N3 is Spinel-derived structured and crystallizes in the cubic Ia-3 space group. There are two inequivalent U sites. In the first U site, U(1) is bonded to six equivalent N(1) atoms to form a mixture of distorted corner and edge-sharing UN6 octahedra. The corner-sharing octahedral tilt angles are 58°. In the second U site, U(2) is bonded to six equivalent N(1) atoms to form a mixture of distorted corner and edge-sharing UN6 octahedra. The corner-sharing octahedral tilt angles range from 58-60°. N(1) is bonded to one U(1) and three equivalent U(2) atoms to form a mixture of corner and edge-sharing NU4 tetrahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_U2N3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.279
_cell_length_b   9.279
_cell_length_c   9.279
_cell_angle_alpha   109.471
_cell_angle_beta   109.471
_cell_angle_gamma   109.471
_symmetry_Int_Tables_number   1
_cell_volume   615.059
_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
  U  U0  1  0.500  0.500  0.500  1.0
  U  U1  1  0.000  0.500  0.000  1.0
  U  U2  1  0.000  0.000  0.500  1.0
  U  U3  1  0.500  0.000  0.000  1.0
  U  U4  1  0.228  0.978  0.250  1.0
  U  U5  1  0.522  0.750  0.272  1.0
  U  U6  1  0.750  0.272  0.522  1.0
  U  U7  1  0.978  0.250  0.228  1.0
  U  U8  1  0.250  0.228  0.978  1.0
  U  U9  1  0.272  0.522  0.750  1.0
  U  U10  1  0.772  0.022  0.750  1.0
  U  U11  1  0.478  0.250  0.728  1.0
  U  U12  1  0.250  0.728  0.478  1.0
  U  U13  1  0.022  0.750  0.772  1.0
  U  U14  1  0.750  0.772  0.022  1.0
  U  U15  1  0.728  0.478  0.250  1.0
  N  N16  1  0.764  0.531  0.527  1.0
  N  N17  1  0.969  0.732  0.996  1.0
  N  N18  1  0.768  0.736  0.263  1.0
  N  N19  1  0.237  0.973  0.504  1.0
  N  N20  1  0.732  0.996  0.969  1.0
  N  N21  1  0.263  0.768  0.736  1.0
  N  N22  1  0.973  0.504  0.237  1.0
  N  N23  1  0.527  0.764  0.531  1.0
  N  N24  1  0.531  0.527  0.764  1.0
  N  N25  1  0.996  0.969  0.732  1.0
  N  N26  1  0.736  0.263  0.768  1.0
  N  N27  1  0.504  0.237  0.973  1.0
  N  N28  1  0.236  0.469  0.473  1.0
  N  N29  1  0.031  0.268  0.004  1.0
  N  N30  1  0.232  0.264  0.737  1.0
  N  N31  1  0.763  0.027  0.496  1.0
  N  N32  1  0.268  0.004  0.031  1.0
  N  N33  1  0.737  0.232  0.264  1.0
  N  N34  1  0.027  0.496  0.763  1.0
  N  N35  1  0.473  0.236  0.469  1.0
  N  N36  1  0.469  0.473  0.236  1.0
  N  N37  1  0.004  0.031  0.268  1.0
  N  N38  1  0.264  0.737  0.232  1.0
  N  N39  1  0.496  0.763  0.027  1.0
[/CIF]
.