The crystal structure described by Cr(CN)3 is alpha Rhenium trioxide-derived structured and crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a distorted pentagonal pyramidal geometry to two equivalent N(2) and four equivalent N(1) atoms. In the second Cr site, Cr(2) is bonded in an octahedral geometry to two equivalent C(2) and four equivalent C(1) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one Cr(2) and one N(1) atom. In the second C site, C(2) is bonded in a linear geometry to one Cr(2) and one N(2) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded in a linear geometry to one Cr(1) and one C(1) atom. In the second N site, N(2) is bonded in a linear geometry to one Cr(1) and one C(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cr(CN)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.983
_cell_length_b   6.980
_cell_length_c   12.411
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.011
_symmetry_Int_Tables_number   1
_cell_volume   523.838
_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
  Cr  Cr0  1  0.333  0.666  0.250  1.0
  Cr  Cr1  1  0.667  0.334  0.750  1.0
  Cr  Cr2  1  0.000  0.000  0.500  1.0
  Cr  Cr3  1  0.000  0.000  0.000  1.0
  C  C4  1  0.735  0.868  0.407  1.0
  C  C5  1  0.132  0.868  0.407  1.0
  C  C6  1  0.132  0.264  0.407  1.0
  C  C7  1  0.265  0.132  0.593  1.0
  C  C8  1  0.868  0.132  0.593  1.0
  C  C9  1  0.868  0.736  0.593  1.0
  C  C10  1  0.265  0.132  0.907  1.0
  C  C11  1  0.868  0.132  0.907  1.0
  C  C12  1  0.868  0.736  0.907  1.0
  C  C13  1  0.735  0.868  0.093  1.0
  C  C14  1  0.132  0.868  0.093  1.0
  C  C15  1  0.132  0.264  0.093  1.0
  N  N16  1  0.580  0.790  0.349  1.0
  N  N17  1  0.210  0.790  0.349  1.0
  N  N18  1  0.210  0.420  0.349  1.0
  N  N19  1  0.420  0.210  0.651  1.0
  N  N20  1  0.790  0.210  0.651  1.0
  N  N21  1  0.790  0.580  0.651  1.0
  N  N22  1  0.420  0.210  0.849  1.0
  N  N23  1  0.790  0.210  0.849  1.0
  N  N24  1  0.790  0.580  0.849  1.0
  N  N25  1  0.580  0.790  0.151  1.0
  N  N26  1  0.210  0.790  0.151  1.0
  N  N27  1  0.210  0.420  0.151  1.0
[/CIF]
.
The crystal structure described by Cr(CN)3 is alpha Rhenium trioxide-derived structured and crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a distorted pentagonal pyramidal geometry to two equivalent N(2) and four equivalent N(1) atoms. In the second Cr site, Cr(2) is bonded in an octahedral geometry to two equivalent C(2) and four equivalent C(1) atoms. There are two inequivalent C sites. In the first C site, C(1) is bonded in a linear geometry to one Cr(2) and one N(1) atom. In the second C site, C(2) is bonded in a linear geometry to one Cr(2) and one N(2) atom. There are two inequivalent N sites. In the first N site, N(1) is bonded in a linear geometry to one Cr(1) and one C(1) atom. In the second N site, N(2) is bonded in a linear geometry to one Cr(1) and one C(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cr(CN)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.983
_cell_length_b   6.980
_cell_length_c   12.411
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.011
_symmetry_Int_Tables_number   1
_cell_volume   523.838
_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
  Cr  Cr0  1  0.333  0.666  0.250  1.0
  Cr  Cr1  1  0.667  0.334  0.750  1.0
  Cr  Cr2  1  0.000  0.000  0.500  1.0
  Cr  Cr3  1  0.000  0.000  0.000  1.0
  C  C4  1  0.735  0.868  0.407  1.0
  C  C5  1  0.132  0.868  0.407  1.0
  C  C6  1  0.132  0.264  0.407  1.0
  C  C7  1  0.265  0.132  0.593  1.0
  C  C8  1  0.868  0.132  0.593  1.0
  C  C9  1  0.868  0.736  0.593  1.0
  C  C10  1  0.265  0.132  0.907  1.0
  C  C11  1  0.868  0.132  0.907  1.0
  C  C12  1  0.868  0.736  0.907  1.0
  C  C13  1  0.735  0.868  0.093  1.0
  C  C14  1  0.132  0.868  0.093  1.0
  C  C15  1  0.132  0.264  0.093  1.0
  N  N16  1  0.580  0.790  0.349  1.0
  N  N17  1  0.210  0.790  0.349  1.0
  N  N18  1  0.210  0.420  0.349  1.0
  N  N19  1  0.420  0.210  0.651  1.0
  N  N20  1  0.790  0.210  0.651  1.0
  N  N21  1  0.790  0.580  0.651  1.0
  N  N22  1  0.420  0.210  0.849  1.0
  N  N23  1  0.790  0.210  0.849  1.0
  N  N24  1  0.790  0.580  0.849  1.0
  N  N25  1  0.580  0.790  0.151  1.0
  N  N26  1  0.210  0.790  0.151  1.0
  N  N27  1  0.210  0.420  0.151  1.0
[/CIF]
.