The material described by NdZn2Si2 crystallizes in the tetragonal I4/mmm space group. Nd(1) is bonded in a 16-coordinate geometry to eight equivalent Zn(1) and eight equivalent Si(1) atoms. Zn(1) is bonded to four equivalent Nd(1) and four equivalent Si(1) atoms to form a mixture of distorted face, corner, and edge-sharing ZnNd4Si4 tetrahedra. Si(1) is bonded in a 9-coordinate geometry to four equivalent Nd(1), four equivalent Zn(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_Nd(ZnSi)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.060
_cell_length_b   6.060
_cell_length_c   6.060
_cell_angle_alpha   140.250
_cell_angle_beta   140.250
_cell_angle_gamma   57.474
_symmetry_Int_Tables_number   1
_cell_volume   90.212
_cell_formula_units_Z   1
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
  Nd  Nd0  1  0.000  0.000  0.000  1.0
  Zn  Zn1  1  0.750  0.250  0.500  1.0
  Zn  Zn2  1  0.250  0.750  0.500  1.0
  Si  Si3  1  0.387  0.387  0.000  1.0
  Si  Si4  1  0.613  0.613  0.000  1.0
[/CIF]
.
The material described by NdZn2Si2 crystallizes in the tetragonal I4/mmm space group. Nd(1) is bonded in a 16-coordinate geometry to eight equivalent Zn(1) and eight equivalent Si(1) atoms. Zn(1) is bonded to four equivalent Nd(1) and four equivalent Si(1) atoms to form a mixture of distorted face, corner, and edge-sharing ZnNd4Si4 tetrahedra. Si(1) is bonded in a 9-coordinate geometry to four equivalent Nd(1), four equivalent Zn(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_Nd(ZnSi)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.060
_cell_length_b   6.060
_cell_length_c   6.060
_cell_angle_alpha   140.250
_cell_angle_beta   140.250
_cell_angle_gamma   57.474
_symmetry_Int_Tables_number   1
_cell_volume   90.212
_cell_formula_units_Z   1
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
  Nd  Nd0  1  0.000  0.000  0.000  1.0
  Zn  Zn1  1  0.750  0.250  0.500  1.0
  Zn  Zn2  1  0.250  0.750  0.500  1.0
  Si  Si3  1  0.387  0.387  0.000  1.0
  Si  Si4  1  0.613  0.613  0.000  1.0
[/CIF]
.