The structure described by Nd3Si crystallizes in the hexagonal P6_3/mmc space group. Nd(1) is bonded in a 4-coordinate geometry to four equivalent Si(1) atoms. Si(1) is bonded to twelve equivalent Nd(1) atoms to form a mixture of face and corner-sharing SiNd12 cuboctahedra. is represented by the CIF card [CIF]
data_Nd3Si
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.043
_cell_length_b   7.043
_cell_length_c   5.116
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   219.809
_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
  Nd  Nd0  1  0.180  0.361  0.250  1.0
  Nd  Nd1  1  0.639  0.820  0.250  1.0
  Nd  Nd2  1  0.180  0.820  0.250  1.0
  Nd  Nd3  1  0.820  0.639  0.750  1.0
  Nd  Nd4  1  0.361  0.180  0.750  1.0
  Nd  Nd5  1  0.820  0.180  0.750  1.0
  Si  Si6  1  0.333  0.667  0.750  1.0
  Si  Si7  1  0.667  0.333  0.250  1.0
[/CIF]
.
The structure described by Nd3Si crystallizes in the hexagonal P6_3/mmc space group. Nd(1) is bonded in a 4-coordinate geometry to four equivalent Si(1) atoms. Si(1) is bonded to twelve equivalent Nd(1) atoms to form a mixture of face and corner-sharing SiNd12 cuboctahedra. is represented by the CIF card [CIF]
data_Nd3Si
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.043
_cell_length_b   7.043
_cell_length_c   5.116
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   219.809
_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
  Nd  Nd0  1  0.180  0.361  0.250  1.0
  Nd  Nd1  1  0.639  0.820  0.250  1.0
  Nd  Nd2  1  0.180  0.820  0.250  1.0
  Nd  Nd3  1  0.820  0.639  0.750  1.0
  Nd  Nd4  1  0.361  0.180  0.750  1.0
  Nd  Nd5  1  0.820  0.180  0.750  1.0
  Si  Si6  1  0.333  0.667  0.750  1.0
  Si  Si7  1  0.667  0.333  0.250  1.0
[/CIF]
.