The structure described by CdSiN2 crystallizes in the orthorhombic Pna2_1 space group. Cd(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form CdN4 tetrahedra that share corners with four equivalent Cd(1)N4 tetrahedra and corners with eight equivalent Si(1)N4 tetrahedra. Si(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form SiN4 tetrahedra that share corners with four equivalent Si(1)N4 tetrahedra and corners with eight equivalent Cd(1)N4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Cd(1) and two equivalent Si(1) atoms to form distorted corner-sharing NCd2Si2 tetrahedra. In the second N site, N(2) is bonded to two equivalent Cd(1) and two equivalent Si(1) atoms to form distorted corner-sharing NCd2Si2 trigonal pyramids. is represented by the CIF file [CIF]
data_CdSiN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.433
_cell_length_b   6.766
_cell_length_c   5.303
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   194.937
_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
  Cd  Cd0  1  0.577  0.876  0.991  1.0
  Cd  Cd1  1  0.423  0.124  0.491  1.0
  Cd  Cd2  1  0.923  0.376  0.491  1.0
  Cd  Cd3  1  0.077  0.624  0.991  1.0
  Si  Si4  1  0.562  0.375  0.994  1.0
  Si  Si5  1  0.438  0.625  0.494  1.0
  Si  Si6  1  0.938  0.875  0.494  1.0
  Si  Si7  1  0.062  0.125  0.994  1.0
  N  N8  1  0.625  0.830  0.418  1.0
  N  N9  1  0.375  0.170  0.918  1.0
  N  N10  1  0.875  0.330  0.918  1.0
  N  N11  1  0.125  0.670  0.418  1.0
  N  N12  1  0.537  0.420  0.320  1.0
  N  N13  1  0.463  0.580  0.820  1.0
  N  N14  1  0.963  0.920  0.820  1.0
  N  N15  1  0.037  0.080  0.320  1.0
[/CIF]
.
The structure described by CdSiN2 crystallizes in the orthorhombic Pna2_1 space group. Cd(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form CdN4 tetrahedra that share corners with four equivalent Cd(1)N4 tetrahedra and corners with eight equivalent Si(1)N4 tetrahedra. Si(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form SiN4 tetrahedra that share corners with four equivalent Si(1)N4 tetrahedra and corners with eight equivalent Cd(1)N4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded to two equivalent Cd(1) and two equivalent Si(1) atoms to form distorted corner-sharing NCd2Si2 tetrahedra. In the second N site, N(2) is bonded to two equivalent Cd(1) and two equivalent Si(1) atoms to form distorted corner-sharing NCd2Si2 trigonal pyramids. is represented by the CIF file [CIF]
data_CdSiN2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.433
_cell_length_b   6.766
_cell_length_c   5.303
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   194.937
_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
  Cd  Cd0  1  0.577  0.876  0.991  1.0
  Cd  Cd1  1  0.423  0.124  0.491  1.0
  Cd  Cd2  1  0.923  0.376  0.491  1.0
  Cd  Cd3  1  0.077  0.624  0.991  1.0
  Si  Si4  1  0.562  0.375  0.994  1.0
  Si  Si5  1  0.438  0.625  0.494  1.0
  Si  Si6  1  0.938  0.875  0.494  1.0
  Si  Si7  1  0.062  0.125  0.994  1.0
  N  N8  1  0.625  0.830  0.418  1.0
  N  N9  1  0.375  0.170  0.918  1.0
  N  N10  1  0.875  0.330  0.918  1.0
  N  N11  1  0.125  0.670  0.418  1.0
  N  N12  1  0.537  0.420  0.320  1.0
  N  N13  1  0.463  0.580  0.820  1.0
  N  N14  1  0.963  0.920  0.820  1.0
  N  N15  1  0.037  0.080  0.320  1.0
[/CIF]
.