The compound described by B2(CN2)3 crystallizes in the monoclinic C2/c 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(1), one N(2), and one N(6) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one N(3), one N(4), and one N(5) atom. There are three inequivalent C sites. In the first C site, C(1) is bonded in a distorted see-saw-like geometry to one N(3), one N(5), and two equivalent N(4) atoms. In the second C site, C(2) is bonded to one N(1), one N(2), and two equivalent N(6) atoms to form corner-sharing CN4 tetrahedra. In the third C site, C(3) is bonded to one N(1), one N(2), one N(3), and one N(5) atom to form corner-sharing CN4 tetrahedra. There are six inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one B(1), one C(2), and one C(3) atom. In the second N site, N(2) is bonded in a distorted trigonal non-coplanar geometry to one B(1), one C(2), and one C(3) atom. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one B(2), one C(1), and one C(3) atom. In the fourth N site, N(4) is bonded in a distorted trigonal planar geometry to one B(2) and two equivalent C(1) atoms. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one B(2), one C(1), and one C(3) atom. In the sixth N site, N(6) is bonded in a trigonal planar geometry to one B(1) and two equivalent C(2) atoms. is represented by the CIF file [CIF]
data_B2(CN2)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.968
_cell_length_b   9.968
_cell_length_c   6.964
_cell_angle_alpha   81.249
_cell_angle_beta   81.249
_cell_angle_gamma   25.251
_symmetry_Int_Tables_number   1
_cell_volume   291.602
_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
  B  B0  1  0.632  0.994  0.032  1.0
  B  B1  1  0.734  0.388  0.446  1.0
  B  B2  1  0.612  0.266  0.054  1.0
  B  B3  1  0.388  0.734  0.946  1.0
  B  B4  1  0.994  0.632  0.532  1.0
  B  B5  1  0.368  0.006  0.968  1.0
  B  B6  1  0.266  0.612  0.554  1.0
  B  B7  1  0.006  0.368  0.468  1.0
  C  C8  1  0.808  0.098  0.689  1.0
  C  C9  1  0.119  0.460  0.217  1.0
  C  C10  1  0.185  0.564  0.916  1.0
  C  C11  1  0.436  0.815  0.584  1.0
  C  C12  1  0.564  0.185  0.416  1.0
  C  C13  1  0.881  0.540  0.783  1.0
  C  C14  1  0.540  0.881  0.283  1.0
  C  C15  1  0.815  0.436  0.084  1.0
  C  C16  1  0.902  0.192  0.811  1.0
  C  C17  1  0.460  0.119  0.717  1.0
  C  C18  1  0.098  0.808  0.189  1.0
  C  C19  1  0.192  0.902  0.311  1.0
  N  N20  1  0.969  0.664  0.037  1.0
  N  N21  1  0.470  0.219  0.864  1.0
  N  N22  1  0.935  0.244  0.284  1.0
  N  N23  1  0.194  0.861  0.118  1.0
  N  N24  1  0.065  0.756  0.716  1.0
  N  N25  1  0.756  0.065  0.216  1.0
  N  N26  1  0.280  0.571  0.043  1.0
  N  N27  1  0.580  0.885  0.822  1.0
  N  N28  1  0.571  0.280  0.543  1.0
  N  N29  1  0.861  0.194  0.618  1.0
  N  N30  1  0.420  0.115  0.178  1.0
  N  N31  1  0.429  0.720  0.457  1.0
  N  N32  1  0.115  0.420  0.678  1.0
  N  N33  1  0.664  0.969  0.537  1.0
  N  N34  1  0.806  0.139  0.882  1.0
  N  N35  1  0.219  0.470  0.364  1.0
  N  N36  1  0.781  0.530  0.636  1.0
  N  N37  1  0.244  0.935  0.784  1.0
  N  N38  1  0.336  0.031  0.463  1.0
  N  N39  1  0.720  0.429  0.957  1.0
  N  N40  1  0.885  0.580  0.322  1.0
  N  N41  1  0.139  0.806  0.382  1.0
  N  N42  1  0.031  0.336  0.963  1.0
  N  N43  1  0.530  0.781  0.136  1.0
[/CIF]
.
The compound described by B2(CN2)3 crystallizes in the monoclinic C2/c 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(1), one N(2), and one N(6) atom. In the second B site, B(2) is bonded in a trigonal planar geometry to one N(3), one N(4), and one N(5) atom. There are three inequivalent C sites. In the first C site, C(1) is bonded in a distorted see-saw-like geometry to one N(3), one N(5), and two equivalent N(4) atoms. In the second C site, C(2) is bonded to one N(1), one N(2), and two equivalent N(6) atoms to form corner-sharing CN4 tetrahedra. In the third C site, C(3) is bonded to one N(1), one N(2), one N(3), and one N(5) atom to form corner-sharing CN4 tetrahedra. There are six inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one B(1), one C(2), and one C(3) atom. In the second N site, N(2) is bonded in a distorted trigonal non-coplanar geometry to one B(1), one C(2), and one C(3) atom. In the third N site, N(3) is bonded in a distorted trigonal planar geometry to one B(2), one C(1), and one C(3) atom. In the fourth N site, N(4) is bonded in a distorted trigonal planar geometry to one B(2) and two equivalent C(1) atoms. In the fifth N site, N(5) is bonded in a trigonal planar geometry to one B(2), one C(1), and one C(3) atom. In the sixth N site, N(6) is bonded in a trigonal planar geometry to one B(1) and two equivalent C(2) atoms. is represented by the CIF file [CIF]
data_B2(CN2)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.968
_cell_length_b   9.968
_cell_length_c   6.964
_cell_angle_alpha   81.249
_cell_angle_beta   81.249
_cell_angle_gamma   25.251
_symmetry_Int_Tables_number   1
_cell_volume   291.602
_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
  B  B0  1  0.632  0.994  0.032  1.0
  B  B1  1  0.734  0.388  0.446  1.0
  B  B2  1  0.612  0.266  0.054  1.0
  B  B3  1  0.388  0.734  0.946  1.0
  B  B4  1  0.994  0.632  0.532  1.0
  B  B5  1  0.368  0.006  0.968  1.0
  B  B6  1  0.266  0.612  0.554  1.0
  B  B7  1  0.006  0.368  0.468  1.0
  C  C8  1  0.808  0.098  0.689  1.0
  C  C9  1  0.119  0.460  0.217  1.0
  C  C10  1  0.185  0.564  0.916  1.0
  C  C11  1  0.436  0.815  0.584  1.0
  C  C12  1  0.564  0.185  0.416  1.0
  C  C13  1  0.881  0.540  0.783  1.0
  C  C14  1  0.540  0.881  0.283  1.0
  C  C15  1  0.815  0.436  0.084  1.0
  C  C16  1  0.902  0.192  0.811  1.0
  C  C17  1  0.460  0.119  0.717  1.0
  C  C18  1  0.098  0.808  0.189  1.0
  C  C19  1  0.192  0.902  0.311  1.0
  N  N20  1  0.969  0.664  0.037  1.0
  N  N21  1  0.470  0.219  0.864  1.0
  N  N22  1  0.935  0.244  0.284  1.0
  N  N23  1  0.194  0.861  0.118  1.0
  N  N24  1  0.065  0.756  0.716  1.0
  N  N25  1  0.756  0.065  0.216  1.0
  N  N26  1  0.280  0.571  0.043  1.0
  N  N27  1  0.580  0.885  0.822  1.0
  N  N28  1  0.571  0.280  0.543  1.0
  N  N29  1  0.861  0.194  0.618  1.0
  N  N30  1  0.420  0.115  0.178  1.0
  N  N31  1  0.429  0.720  0.457  1.0
  N  N32  1  0.115  0.420  0.678  1.0
  N  N33  1  0.664  0.969  0.537  1.0
  N  N34  1  0.806  0.139  0.882  1.0
  N  N35  1  0.219  0.470  0.364  1.0
  N  N36  1  0.781  0.530  0.636  1.0
  N  N37  1  0.244  0.935  0.784  1.0
  N  N38  1  0.336  0.031  0.463  1.0
  N  N39  1  0.720  0.429  0.957  1.0
  N  N40  1  0.885  0.580  0.322  1.0
  N  N41  1  0.139  0.806  0.382  1.0
  N  N42  1  0.031  0.336  0.963  1.0
  N  N43  1  0.530  0.781  0.136  1.0
[/CIF]
.