The compound described by CrZn2N2 crystallizes in the monoclinic C2/m space group. Cr(1) is bonded in a distorted T-shaped geometry to one N(1) and two equivalent N(2) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 3-coordinate geometry to one N(2) and two equivalent N(1) atoms. In the second Zn site, Zn(2) is bonded in a 4-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded to one Cr(1), two equivalent Zn(1), and two equivalent Zn(2) atoms to form distorted NZn4Cr square pyramids that share corners with two equivalent N(1)Zn4Cr square pyramids, corners with four equivalent N(2)Zn3Cr2 trigonal bipyramids,  an edgeedge with one N(1)Zn4Cr square pyramid, and edges with two equivalent N(2)Zn3Cr2 trigonal bipyramids. In the second N site, N(2) is bonded to two equivalent Cr(1), one Zn(1), and two equivalent Zn(2) atoms to form distorted NZn3Cr2 trigonal bipyramids that share corners with four equivalent N(1)Zn4Cr square pyramids, corners with two equivalent N(2)Zn3Cr2 trigonal bipyramids, edges with two equivalent N(1)Zn4Cr square pyramids, and  an edgeedge with one N(2)Zn3Cr2 trigonal bipyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn2CrN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.543
_cell_length_b   5.543
_cell_length_c   6.185
_cell_angle_alpha   61.503
_cell_angle_beta   61.503
_cell_angle_gamma   48.912
_symmetry_Int_Tables_number   1
_cell_volume   121.963
_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
  Zn  Zn0  1  0.707  0.707  0.751  1.0
  Zn  Zn1  1  0.293  0.293  0.249  1.0
  Zn  Zn2  1  0.060  0.060  0.190  1.0
  Zn  Zn3  1  0.940  0.940  0.810  1.0
  Cr  Cr4  1  0.357  0.357  0.654  1.0
  Cr  Cr5  1  0.643  0.643  0.346  1.0
  N  N6  1  0.157  0.157  0.783  1.0
  N  N7  1  0.843  0.843  0.217  1.0
  N  N8  1  0.530  0.530  0.690  1.0
  N  N9  1  0.470  0.470  0.310  1.0
[/CIF]
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The compound described by CrZn2N2 crystallizes in the monoclinic C2/m space group. Cr(1) is bonded in a distorted T-shaped geometry to one N(1) and two equivalent N(2) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 3-coordinate geometry to one N(2) and two equivalent N(1) atoms. In the second Zn site, Zn(2) is bonded in a 4-coordinate geometry to two equivalent N(1) and two equivalent N(2) atoms. There are two inequivalent N sites. In the first N site, N(1) is bonded to one Cr(1), two equivalent Zn(1), and two equivalent Zn(2) atoms to form distorted NZn4Cr square pyramids that share corners with two equivalent N(1)Zn4Cr square pyramids, corners with four equivalent N(2)Zn3Cr2 trigonal bipyramids,  an edgeedge with one N(1)Zn4Cr square pyramid, and edges with two equivalent N(2)Zn3Cr2 trigonal bipyramids. In the second N site, N(2) is bonded to two equivalent Cr(1), one Zn(1), and two equivalent Zn(2) atoms to form distorted NZn3Cr2 trigonal bipyramids that share corners with four equivalent N(1)Zn4Cr square pyramids, corners with two equivalent N(2)Zn3Cr2 trigonal bipyramids, edges with two equivalent N(1)Zn4Cr square pyramids, and  an edgeedge with one N(2)Zn3Cr2 trigonal bipyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Zn2CrN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.543
_cell_length_b   5.543
_cell_length_c   6.185
_cell_angle_alpha   61.503
_cell_angle_beta   61.503
_cell_angle_gamma   48.912
_symmetry_Int_Tables_number   1
_cell_volume   121.963
_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
  Zn  Zn0  1  0.707  0.707  0.751  1.0
  Zn  Zn1  1  0.293  0.293  0.249  1.0
  Zn  Zn2  1  0.060  0.060  0.190  1.0
  Zn  Zn3  1  0.940  0.940  0.810  1.0
  Cr  Cr4  1  0.357  0.357  0.654  1.0
  Cr  Cr5  1  0.643  0.643  0.346  1.0
  N  N6  1  0.157  0.157  0.783  1.0
  N  N7  1  0.843  0.843  0.217  1.0
  N  N8  1  0.530  0.530  0.690  1.0
  N  N9  1  0.470  0.470  0.310  1.0
[/CIF]
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