The material described by C2N2Se is Indium-like structured and crystallizes in the orthorhombic Pbca space group. The structure is zero-dimensional and consists of eight selenium cyanide molecules. There are two inequivalent C sites. In the first C site, C(1) is bonded in a single-bond geometry to one N(1) and one Se(1) atom. In the second C site, C(2) is bonded in a distorted single-bond geometry to one N(2) and one Se(1) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded in a single-bond geometry to one C(1) atom. In the second N site, N(2) is bonded in a single-bond geometry to one C(2) atom. Se(1) is bonded in a distorted L-shaped geometry to one C(1) and one C(2) atom. is represented by the CIF card [CIF]
data_C2SeN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.915
_cell_length_b   8.340
_cell_length_c   13.771
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   794.132
_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
  C  C0  1  0.727  0.693  0.363  1.0
  C  C1  1  0.409  0.107  0.888  1.0
  C  C2  1  0.227  0.307  0.137  1.0
  C  C3  1  0.273  0.307  0.637  1.0
  C  C4  1  0.727  0.193  0.137  1.0
  C  C5  1  0.591  0.393  0.388  1.0
  C  C6  1  0.909  0.393  0.888  1.0
  C  C7  1  0.091  0.607  0.112  1.0
  C  C8  1  0.409  0.607  0.612  1.0
  C  C9  1  0.091  0.107  0.388  1.0
  C  C10  1  0.909  0.893  0.612  1.0
  C  C11  1  0.773  0.193  0.637  1.0
  C  C12  1  0.227  0.807  0.363  1.0
  C  C13  1  0.591  0.893  0.112  1.0
  C  C14  1  0.773  0.693  0.863  1.0
  C  C15  1  0.273  0.807  0.863  1.0
  Se  Se16  1  0.335  0.513  0.128  1.0
  Se  Se17  1  0.665  0.487  0.872  1.0
  Se  Se18  1  0.165  0.013  0.872  1.0
  Se  Se19  1  0.335  0.013  0.372  1.0
  Se  Se20  1  0.665  0.987  0.628  1.0
  Se  Se21  1  0.835  0.987  0.128  1.0
  Se  Se22  1  0.165  0.513  0.628  1.0
  Se  Se23  1  0.835  0.487  0.372  1.0
  N  N24  1  0.164  0.177  0.140  1.0
  N  N25  1  0.336  0.177  0.640  1.0
  N  N26  1  0.164  0.677  0.360  1.0
  N  N27  1  0.836  0.823  0.860  1.0
  N  N28  1  0.947  0.178  0.400  1.0
  N  N29  1  0.053  0.822  0.600  1.0
  N  N30  1  0.553  0.178  0.900  1.0
  N  N31  1  0.836  0.323  0.640  1.0
  N  N32  1  0.553  0.678  0.600  1.0
  N  N33  1  0.664  0.823  0.360  1.0
  N  N34  1  0.053  0.322  0.900  1.0
  N  N35  1  0.447  0.822  0.100  1.0
  N  N36  1  0.664  0.323  0.140  1.0
  N  N37  1  0.336  0.677  0.860  1.0
  N  N38  1  0.447  0.322  0.400  1.0
  N  N39  1  0.947  0.678  0.100  1.0
[/CIF]
.
The material described by C2N2Se is Indium-like structured and crystallizes in the orthorhombic Pbca space group. The structure is zero-dimensional and consists of eight selenium cyanide molecules. There are two inequivalent C sites. In the first C site, C(1) is bonded in a single-bond geometry to one N(1) and one Se(1) atom. In the second C site, C(2) is bonded in a distorted single-bond geometry to one N(2) and one Se(1) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded in a single-bond geometry to one C(1) atom. In the second N site, N(2) is bonded in a single-bond geometry to one C(2) atom. Se(1) is bonded in a distorted L-shaped geometry to one C(1) and one C(2) atom. is represented by the CIF card [CIF]
data_C2SeN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.915
_cell_length_b   8.340
_cell_length_c   13.771
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   794.132
_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
  C  C0  1  0.727  0.693  0.363  1.0
  C  C1  1  0.409  0.107  0.888  1.0
  C  C2  1  0.227  0.307  0.137  1.0
  C  C3  1  0.273  0.307  0.637  1.0
  C  C4  1  0.727  0.193  0.137  1.0
  C  C5  1  0.591  0.393  0.388  1.0
  C  C6  1  0.909  0.393  0.888  1.0
  C  C7  1  0.091  0.607  0.112  1.0
  C  C8  1  0.409  0.607  0.612  1.0
  C  C9  1  0.091  0.107  0.388  1.0
  C  C10  1  0.909  0.893  0.612  1.0
  C  C11  1  0.773  0.193  0.637  1.0
  C  C12  1  0.227  0.807  0.363  1.0
  C  C13  1  0.591  0.893  0.112  1.0
  C  C14  1  0.773  0.693  0.863  1.0
  C  C15  1  0.273  0.807  0.863  1.0
  Se  Se16  1  0.335  0.513  0.128  1.0
  Se  Se17  1  0.665  0.487  0.872  1.0
  Se  Se18  1  0.165  0.013  0.872  1.0
  Se  Se19  1  0.335  0.013  0.372  1.0
  Se  Se20  1  0.665  0.987  0.628  1.0
  Se  Se21  1  0.835  0.987  0.128  1.0
  Se  Se22  1  0.165  0.513  0.628  1.0
  Se  Se23  1  0.835  0.487  0.372  1.0
  N  N24  1  0.164  0.177  0.140  1.0
  N  N25  1  0.336  0.177  0.640  1.0
  N  N26  1  0.164  0.677  0.360  1.0
  N  N27  1  0.836  0.823  0.860  1.0
  N  N28  1  0.947  0.178  0.400  1.0
  N  N29  1  0.053  0.822  0.600  1.0
  N  N30  1  0.553  0.178  0.900  1.0
  N  N31  1  0.836  0.323  0.640  1.0
  N  N32  1  0.553  0.678  0.600  1.0
  N  N33  1  0.664  0.823  0.360  1.0
  N  N34  1  0.053  0.322  0.900  1.0
  N  N35  1  0.447  0.822  0.100  1.0
  N  N36  1  0.664  0.323  0.140  1.0
  N  N37  1  0.336  0.677  0.860  1.0
  N  N38  1  0.447  0.322  0.400  1.0
  N  N39  1  0.947  0.678  0.100  1.0
[/CIF]
.