The crystal structure described by Li6CrN4 crystallizes in the tetragonal P4_2/nmc space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to four equivalent N(1) atoms to form distorted LiN4 tetrahedra that share corners with four equivalent Cr(1)N4 tetrahedra, corners with eight equivalent Li(2)N4 tetrahedra, edges with two equivalent Li(1)N4 tetrahedra, and edges with four equivalent Li(2)N4 tetrahedra. In the second Li site, Li(2) is bonded to four equivalent N(1) atoms to form distorted LiN4 tetrahedra that share corners with two equivalent Cr(1)N4 tetrahedra, corners with four equivalent Li(1)N4 tetrahedra, corners with eight equivalent Li(2)N4 tetrahedra,  an edgeedge with one Cr(1)N4 tetrahedra, edges with two equivalent Li(1)N4 tetrahedra, and edges with two equivalent Li(2)N4 tetrahedra. Cr(1) is bonded to four equivalent N(1) atoms to form CrN4 tetrahedra that share corners with eight equivalent Li(1)N4 tetrahedra, corners with eight equivalent Li(2)N4 tetrahedra, and edges with four equivalent Li(2)N4 tetrahedra. N(1) is bonded in a 7-coordinate geometry to two equivalent Li(1), four equivalent Li(2), and one Cr(1) atom. is represented by the CIF file [CIF]
data_Li6CrN4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.485
_cell_length_b   6.485
_cell_length_c   4.894
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   205.845
_cell_formula_units_Z   2
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
  Li  Li0  1  0.500  0.000  0.603  1.0
  Li  Li1  1  0.000  0.500  0.897  1.0
  Li  Li2  1  0.000  0.500  0.397  1.0
  Li  Li3  1  0.500  0.000  0.103  1.0
  Li  Li4  1  0.216  0.216  0.500  1.0
  Li  Li5  1  0.784  0.784  0.500  1.0
  Li  Li6  1  0.716  0.716  0.000  1.0
  Li  Li7  1  0.284  0.284  0.000  1.0
  Li  Li8  1  0.216  0.784  0.500  1.0
  Li  Li9  1  0.784  0.216  0.500  1.0
  Li  Li10  1  0.716  0.284  0.000  1.0
  Li  Li11  1  0.284  0.716  0.000  1.0
  Cr  Cr12  1  0.500  0.500  0.500  1.0
  Cr  Cr13  1  0.000  0.000  0.000  1.0
  N  N14  1  0.500  0.267  0.311  1.0
  N  N15  1  0.500  0.733  0.311  1.0
  N  N16  1  0.000  0.767  0.189  1.0
  N  N17  1  0.000  0.233  0.189  1.0
  N  N18  1  0.267  0.500  0.689  1.0
  N  N19  1  0.733  0.500  0.689  1.0
  N  N20  1  0.767  0.000  0.811  1.0
  N  N21  1  0.233  0.000  0.811  1.0
[/CIF]
.
The crystal structure described by Li6CrN4 crystallizes in the tetragonal P4_2/nmc space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to four equivalent N(1) atoms to form distorted LiN4 tetrahedra that share corners with four equivalent Cr(1)N4 tetrahedra, corners with eight equivalent Li(2)N4 tetrahedra, edges with two equivalent Li(1)N4 tetrahedra, and edges with four equivalent Li(2)N4 tetrahedra. In the second Li site, Li(2) is bonded to four equivalent N(1) atoms to form distorted LiN4 tetrahedra that share corners with two equivalent Cr(1)N4 tetrahedra, corners with four equivalent Li(1)N4 tetrahedra, corners with eight equivalent Li(2)N4 tetrahedra,  an edgeedge with one Cr(1)N4 tetrahedra, edges with two equivalent Li(1)N4 tetrahedra, and edges with two equivalent Li(2)N4 tetrahedra. Cr(1) is bonded to four equivalent N(1) atoms to form CrN4 tetrahedra that share corners with eight equivalent Li(1)N4 tetrahedra, corners with eight equivalent Li(2)N4 tetrahedra, and edges with four equivalent Li(2)N4 tetrahedra. N(1) is bonded in a 7-coordinate geometry to two equivalent Li(1), four equivalent Li(2), and one Cr(1) atom. is represented by the CIF file [CIF]
data_Li6CrN4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.485
_cell_length_b   6.485
_cell_length_c   4.894
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   205.845
_cell_formula_units_Z   2
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
  Li  Li0  1  0.500  0.000  0.603  1.0
  Li  Li1  1  0.000  0.500  0.897  1.0
  Li  Li2  1  0.000  0.500  0.397  1.0
  Li  Li3  1  0.500  0.000  0.103  1.0
  Li  Li4  1  0.216  0.216  0.500  1.0
  Li  Li5  1  0.784  0.784  0.500  1.0
  Li  Li6  1  0.716  0.716  0.000  1.0
  Li  Li7  1  0.284  0.284  0.000  1.0
  Li  Li8  1  0.216  0.784  0.500  1.0
  Li  Li9  1  0.784  0.216  0.500  1.0
  Li  Li10  1  0.716  0.284  0.000  1.0
  Li  Li11  1  0.284  0.716  0.000  1.0
  Cr  Cr12  1  0.500  0.500  0.500  1.0
  Cr  Cr13  1  0.000  0.000  0.000  1.0
  N  N14  1  0.500  0.267  0.311  1.0
  N  N15  1  0.500  0.733  0.311  1.0
  N  N16  1  0.000  0.767  0.189  1.0
  N  N17  1  0.000  0.233  0.189  1.0
  N  N18  1  0.267  0.500  0.689  1.0
  N  N19  1  0.733  0.500  0.689  1.0
  N  N20  1  0.767  0.000  0.811  1.0
  N  N21  1  0.233  0.000  0.811  1.0
[/CIF]
.