The crystal structure described by BN crystallizes in the orthorhombic Imm2 space group. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one N(2) and two equivalent N(1) atoms. In the second B site, B(2) is bonded to one N(2) and three equivalent N(1) atoms to form corner-sharing BN4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded to one B(1) and three equivalent B(2) atoms to form corner-sharing NB4 tetrahedra. In the second N site, N(2) is bonded in a trigonal planar geometry to one B(1) and two equivalent B(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_BN
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.306
_cell_length_b   4.306
_cell_length_c   4.306
_cell_angle_alpha   143.930
_cell_angle_beta   120.977
_cell_angle_gamma   71.156
_symmetry_Int_Tables_number   1
_cell_volume   39.625
_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
  B  B0  1  0.051  0.000  0.051  1.0
  B  B1  1  0.769  0.193  0.576  1.0
  B  B2  1  0.383  0.807  0.576  1.0
  N  N3  1  0.016  0.808  0.207  1.0
  N  N4  1  0.399  0.192  0.207  1.0
  N  N5  1  0.723  0.000  0.723  1.0
[/CIF]
.
The crystal structure described by BN crystallizes in the orthorhombic Imm2 space group. There are two inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one N(2) and two equivalent N(1) atoms. In the second B site, B(2) is bonded to one N(2) and three equivalent N(1) atoms to form corner-sharing BN4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded to one B(1) and three equivalent B(2) atoms to form corner-sharing NB4 tetrahedra. In the second N site, N(2) is bonded in a trigonal planar geometry to one B(1) and two equivalent B(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_BN
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.306
_cell_length_b   4.306
_cell_length_c   4.306
_cell_angle_alpha   143.930
_cell_angle_beta   120.977
_cell_angle_gamma   71.156
_symmetry_Int_Tables_number   1
_cell_volume   39.625
_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
  B  B0  1  0.051  0.000  0.051  1.0
  B  B1  1  0.769  0.193  0.576  1.0
  B  B2  1  0.383  0.807  0.576  1.0
  N  N3  1  0.016  0.808  0.207  1.0
  N  N4  1  0.399  0.192  0.207  1.0
  N  N5  1  0.723  0.000  0.723  1.0
[/CIF]
.